Document Template
Document Number
ESS Monthly Project
Status Report
Date
2015-02-17
Revision
0 (2)
State
FINAL
DRAFT
Monthly Project Status Report for ACCSYS
Reporting period 2015-01-01 to 2015-01-31
Document Template
Document Number
ESS Monthly Project Status Report
Date
2015-02-17
TABLE OF CONTENTS
1.
Total ACCSYS Project Status ............................................................................ 4
1.1
Executive Summary ................................................................................................ 4
1.2
Project Wide Issues & Mitigations ............................................................................ 5
1.3
Decisions Required ................................................................................................. 5
1.4
Milestones ............................................................................................................. 5
1.4.1
Achieved Milestones during January ...................................................................... 5
1.5
Focus for the next 3 months ................................................................................... 5
2.
Project Performance (EV) ................................................................................ 6
2.1
Project EV Curve .................................................................................................... 6
2.2
Variance explanation .............................................................................................. 6
2.2.1
Earned value – planned value ............................................................................... 6
2.2.2
Earned value – actual value .................................................................................. 7
3.
Planning Status ................................................................................................ 7
4.
Cost Status....................................................................................................... 7
4.1
Variances for at completion budget .......................................................................... 7
5.
Risk Status ....................................................................................................... 7
5.1
Risks escalated present month ................................................................................ 7
5.2
Top 5 risks concerning Cost .................................................................................... 7
5.3
Top 5 risks concerning Schedule .............................................................................. 8
6.
Milestones and schedule for coming 12 months .............................................. 9
7.
Status on Annual Review 2013 Recommendations .......................................... 9
8.
Other (examples depending on project) .......................................................... 9
8.1
Status Environment .............................................................................................. 10
8.2
Status Safety ....................................................................................................... 10
8.3
Status In-Kind ...................................................................................................... 10
8.4
Status Construction Contracts ............................................................................... 10
9.
Attachments .................................................................................................. 11
9.1
Work Package Reports .......................................................................................... 11
9.1.1
WP1: Management ............................................................................................ 11
9.1.2
WP2: Beam Physics ........................................................................................... 11
9.1.3
WP3: Normal Conducting Front End .................................................................... 11
9.1.4
WP4: Spoke Cavities and Cryomodules ................................................................ 15
9.1.5
WP5: Elliptical Cavities and Cryomodules ............................................................. 16
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Document Template
Document Number
ESS Monthly Project Status Report
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9.1.6
WP6: Beam Delivery Systems ............................................................................. 18
9.1.7
WP7: Beam Diagnostics ..................................................................................... 19
9.1.8
WP8: RF Systems .............................................................................................. 20
9.1.9
WP10: Test Stand.............................................................................................. 20
9.1.10
WP11: Cryogenics............................................................................................ 21
9.1.11
WP12: Vacuum................................................................................................ 23
9.1.12
WP13: Safety .................................................................................................. 24
9.1.13
WP14: Accelerator Integration .......................................................................... 25
9.1.14
WP15: Electrical Support .................................................................................. 26
9.1.15
WP16: Cooling Support .................................................................................... 27
9.1.16
WP17: Power Converters .................................................................................. 29
9.1.17
WP99 Accelerator Infrastructure & Installation ................................................... 30
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Document Template
Document Number
ESS Monthly Project Status Report
Date
2015-02-17
ACCSYS Project – Status Report for January 2015
1.
TOTAL ACCSYS PROJECT STATUS
1.1
Executive Summary
ACCSYS in January made significant progress in developing and finalizing InKind Contributions along as well as preparations for the upcoming Annual Review. In terms
of IKC we are very close to final signature on the contract with Aarhus University on Beam
Delivery Systems (final signature is expected in February). Agreement has also been reached
with Wrosclaw University in Poland regarding the delivery of the majority of the Cryogenic
Distribution System. The remaining portion of this system will be supplied by IPN Orsay and
a meeting on the detailed technical specifications of this system was held with IPN Orsay this
month. Discussions with other Polish institutions regarding the supply of the 704 MHz LLRF
system were quite fruitful and it appears that such a contribution will occur. An oral
agreement was reached with Daresbury Lab in the UK regarding the provision of beam
instrumentation for the Linac Warm Units. Discussions with Daresbury are also underway
regarding the supply of the LWU chambers and the beam line for the HEBT.
Preparations for the upcoming Annual Review include replanning of the P6
schedule to reflect changes in Work Package assignments and increased IKC. The
development of an integrated installation plan is an important part of this work. The updated
P6 schedule will be ready in mid March. A draft agenda for the ACCSYS breakout session has
been created and backup documentation is under development. ACCSYS expects have all
documentation ready in time for the review.
Recruiting is continuing with 4 new staff members expected to start work in
January and February of 2015. The ACCSYS staff plan has been updated and will be
consistent with P6 planning. The plan ensures that sufficient technicians are available for the
project. The first technicians will start in 2015.
There has been no additional risks added to the project during January. Some
additional detailed technical risks including those associated with operations will be
added to the risk registry prior to April. These will add detail but will not greatly increase
the overall risk profile of the ACCSYS Project
Work Package audits and design reviews have been identified for 2015. Design
reviews are entered into the P6 schedule as their dates are identified. The first design
review will be the CDR for the ion source and LEBT planned scheduled for February 10.
Accomplishments from individual work packages include: Development of a schedule
for the AD staff transition to the ESS Site offices (WP1). Successful testing of the first
Double Spoke Cavity at 2 K. (WP4). Adjustment of Medium Beta klystron delivery plans
to be consistent with June 2019 beam milestone (WP8). Identification of a temporary
location for the the prototype modulator test lab so that work can stay on schedule
(WP10 and WP17) with ESS-wide RAMI group to align approaches to reliability analysis
(WP14). Review of the grounding mesh for Klystron Gallery completed (WP15). Start of
development of Water Consumer Guidelines to specify design codes, standards and
specifications for that water skid designers should use at ESS (WP16). Agreement with
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Document Template
Document Number
ESS Monthly Project Status Report
Date
2015-02-17
CF on the solution to the water cooling of the Klystrons and acceptance of this approach
by CCB (WP99). Internal review of Klystron Gallery layout conducted. (WP99)
1.2
1.3
Project Wide Issues & Mitigations

Consistency is needed across the ESS project on the process and
documentation of radiation shielding calculation.

We consistently hear concerns from potential In-Kind Partners on the
VAT issues. This is being addressed at the ESS-wide level.
Decisions Required

1.4
1.4.1
None
Milestones
Achieved Milestones during January

1.5
None
Focus for the next 3 months
During February - April of 2015, ACCSYS will continue technical work and planning
associated with the existing work packages. Work on IKCs will continue with an emphasis on
the writing of detailed technical appendices and the signing of final agreements. Planned WP
audits along with the CDR for the Ion Source and LEBT will be held. Placing the order for the
Accelerator Cryoplant is planned for February. P6 will be updated to reflect new division of
efforts and additional IKC. Planning for installation and commissioning activities will continue
including the development of an installation plan. Recruitment efforts will continue and the
ACCSYS staff plan will be updated. Preparations for the ESS Annual Review will be completed
and presented.
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Document Template
Document Number
ESS Monthly Project Status Report
Date
2015-02-17
2.
PROJECT PERFORMANCE (EV)
2.1
Project EV Curve
Grand Total
Value
90,000,000
80,000,000
70,000,000
60,000,000
50,000,000
40,000,000
30,000,000
20,000,000
10,000,000
0
Earned
Actuals
Time-phase period
Earned
Actuals
Scheduled
2.2
33,949,988
34,864,980
35,468,022
Variance explanation
2.2.1
Earned value – planned value
The schedule variance (-1.5 Million Euro) is mainly due to:
•
-0.84 M€  New Vacuum plan not still in place (WP12)
•
-0.27 M€  New Beam Delivery system plan not still in place (WP06)
•
On-going actions on planning for matching the delivery date for installation (Spoke 0.17 M€ (WP04) & NC Linac -0.17 M€ (WP3))
•
On-going action on resource loading to match the official staff plan (Power converter
-0.17 M€ (WP17) & Installation -0.1 M€ (WP99))
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Document Template
Document Number
ESS Monthly Project Status Report
Date
2015-02-17
2.2.2
Earned value – actual value
The cost variance (-0.9 million Euro) is mainly due to:
•
•
3.
-0.6 M€  Uppsala University Invoice Q3 2014, coming in 2015 (Test stand WP10)
Some other little fluctuations in all the WPs (mainly to salaries)
PLANNING STATUS




4.
After the end of 2014 the PV were normalized to the actual cost.
Reassesment of klystron deliveries for medium beta shows that plan now complies
with Mid 2019 target.
RFQ construction is currently showing a negative total float (-36 days), but a reevaluation of the planning is on-going as following the WP03 and RFQ reviews done
in November
A detailed installation planning study is on-going inside the accelerator integration
group with a scope of checking the delivery date of the critical components in P6. .
COST STATUS
4.1
Variances for at completion budget
The cost objective for ACCSYS is 510 M€. The plan until EOC now shows 510M€, including a
budget reserve. This reserve will change as we replan the work packages and insert costs.
The size of the reserve will be fixed by April.
5.
RISK STATUS
5.1
Risks escalated present month
5.2
Top 5 risks concerning Cost
None.
Treatment
status
Expected cost
(k€)
1/1/141/1/19
Started
414
Unidentified design faults are not prototyped and fail in
production
1/1/1412/31/19
Started
279
Suppliers do not deliver on time with right quality/quantity,
e.g. klystrons, modulators, CMs, cavities
1/1/1412/31/19
Started
264
Id
Event
Date
2
In-kind contributors do not meet scope and schedule
requirements
5
3
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Document Number
ESS Monthly Project Status Report
Date
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Treatment
status
Expected cost
(k€)
1/1/141/1/18
Started
142
1/1/1412/31/19
Not started
113
Treatment
status
RP
Id
Event
Date
8
Delay in issuing major contracts, both in-kind and others.
23 Political and financial considerations overrule technical
considerations for IKC assignments
5.3
Top 5 risks concerning Schedule
Id
Event
Date
3
Suppliers do not deliver on time with right quality/quantity,
e.g. klystrons, modulators, CMs, cavities
1/1/1412/31/19
Started
16
46 cryomodule production is late
1/1/1412/31/19
Not started
16
2
In-kind contributors do not meet scope and schedule
requirements
1/1/141/1/19
Started
15
8
Delay in issuing major contracts, both in-kind and others.
1/1/141/1/18
Started
12
1/1/1412/31/19
Started
12
19 Extra time spent on new systems and tools and not on
technical work
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Document Number
ESS Monthly Project Status Report
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6.
MILESTONES AND SCHEDULE FOR COMING 12 MONTHS
Top level milestones NB: Re-planning action on-going could bring to new MS  action for
Q1 2015 (Ready for annual review)
7.
STATUS ON ANNUAL REVIEW 2013 RECOMMENDATIONS
A total of 8 recommendations with 14 deliverables resulted from the annual review
10 deliverables constituting 4 recommendations are complete
4 deliverables remain:
1) Draft Beam Commissioning Plan (complete and under review)
2) IKC Plan for Beam Instrumentation (more than 75% complete)
3) Definition of Reliability Requirements - underway
4) Integration of Utility Reliability into ACCSYS Reliability Studies - underway
8.
OTHER (EXAMPLES DEPENDING ON PROJECT)
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ESS Monthly Project Status Report
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8.1
Status Environment
8.2
Status Safety
8.3
Status In-Kind
8.4
Status Construction Contracts
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Document Number
ESS Monthly Project Status Report
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9.
ATTACHMENTS
9.1
9.1.1
Work Package Reports
WP1: Management
Accomplishments





Preparation of documents and breakout session agenda for ESS Annual Review
Replanning of various work packages to better reflect IKC and changes in scope in WP6,
WP12 and WP2
Continued emphasis on finalizing IKC contracts, particularly with Arhus University.
Planning for Work Package Audits and Design Reviews
Developed a schedule for AD staff transition to ESS Site Offices
9.1.2
WP2: Beam Physics
Accomplishments







Effect of quadrupole multipole including errors being studied.
DTL Design Optimization - RF simulations is on going.
Housing the chopper inside a quad vs. moving the chopper out of the quads studied.
Ordered two PCs for two of the group members, these PCs will be shared for studies.
The LWU, HEBT and A2T magnet requirements were updated and provided to Elettra.
Preliminary electromagnetic design of two types of pulsed air-cooled quadrupoles for
LWU is expected by the end of February 2015.
Draft version of the Preliminary study of component failures in the linac (A50080)
complete, final version to be released Feb 28.
Issues
 None As reported earlier the shortage of staff could delay some milestones and tasks
9.1.3
WP3: Normal Conducting Front End
Accomplishments
WP 11.3 Overall and WU 11.3.1 Management



As a result of the WP 3 audit in December 2014, the WP started the new year with a
clear picture of the technical status of all work units and a good understanding of
priorities for 2015.
Work units are now clarifying and updating their planning into ESS Primavera project
plan, working back from new planning dates received from ESS for installing each of
the NCFE systems into the front-end building and tunnel (ESS Bldg. G01).
Prototyping and detailed design is essentially complete or nearing completion for
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three of the four partner WUs, and procurement of materials and components has
commenced by partner CEA for the ESS RFQ and by partner INFN LNS for ESS ISrc
(Proton Source#1). This progress is necessary towards meeting the key ESS schedule
milestone for 2019. However there is technical risk because requirements from ESS
are still being developed, communicated and agreed with partners and interfaces
with ESS site infrastructure and with systems provided by other WPs, are still being
defined and communicated.
WU 11.3.2 Ion Source (ISrc) and Low-Energy Beam Transport (LEBT) – IKC by
INFN LNS (Catania)
-
-
The layout area for assembly of ESS ISrc and LEBT has been established at LNS,
Catania.
High voltage systems, solenoid, and transformer mounting and insulation equipment
for ESS Proton Source (PS)#1 has been procured and delivered. Other PS#1
components are being procured or in the process of being manufactured or delivered.
The WU team worked during January to document the detailed design so that 3D
CAD models, and comprehensive specifications / descriptions were ready for review
at Critical Design Review (CDR), for 10 Feb 2015, and delivery to ESS.
WU 11.3.3 Radio Frequency Quadrupole (RFQ) – IKC by CEA Saclay
-
The specification for procurement of copper is in signature and the tender for
procurement will be issued according to CEA’s quality processes
The call for tender for the RFQ’s coupler is in progress
RFQ detailed design is being documented in reports and the CAD models
WU 11.3.4 Medium-Energy Beam Transport (MEBT) – IKC by ESS Bilbao
-
-
-
-
an integrated engineering model for MEBT was developed and presented to ESS.
planning is being updated to provide a more detailed description of tasks and
milestones for MEBT design, procurement, construction and testing, than has
previously existed in Primavera.
Bunchers:
o Preparations for copper plating: ready to ship to GSI
o Electro-Magnetic design report is in progress.
o ESS RF group visited Bilbao Installations, for “simulate beam loading”
measurement.
Quadrupole:
o a new design to adapt new BPM and APERTURE requirements is under
development (T11).
Diagnostics:
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the design for ACCT+FCT Shielding has progressed.
the design for diagnostic boxes #1 and #2 has been improved.
a new configuration and layout for diagnostics was presented and is being
discussed with ESS Accelerator’s Beam Instruments group.
o a mechanical test of a Wire Scanner assembly in progress.
o Contacts have been established with the company Feshenko for the BSM
o Electronics for BCM is being evaluated.
Chopper & Beam Dump:
o a major workshop was organized and conducted at ESS Bilbao on 26 January.
It was well attended by visiting ESS Accelerator staff from Lund and also
externals specialists from CERN, SNS and STFC RAL/ISIS. The workshop
resulted in a clear design direction for the technology and configuration of
MEBT’s chopper and beam dump similar to a new design successfully
implemented at SNS
o a design report for the new configuration Conical Beam dump was presented
following the workshop.
o
o
o
-
WU 11.3.5 Drift Tube Linac (DTL) – IKC by INFN LNL (Legnaro)
-
A visit to GSI copper plating lab verified that DTL design is compliant with main
copper-plating requirements, and new details in the design will be implemented.
The WU is preparing for DT production tests with copper plating, ebeam welding and
brazing.
Planned key activities
WP 11.3 Overall and WU 11.3.1 Management
The work going forward must be better defined and more formally described in IKC
agreements:
- an In-Kind Contribution (IKC) Agreement, or at least a Heads of Agreement (HoA)
between ESS and INFN, to cover at least ISrc-LEBT or DTL, or both, should be
discussed as soon as possible. Note that the collaboration agreement between ESS
and INFN, which included ISrc -LEBT and DTL design, expired at the end of 2014.
- an IKC HoA has been signed between ESS and ESS Bilbao for MEBT, but should be
considered as an interim measure only.
- a HoA with CEA Saclay for a number of ESS systems, including for RFQ copper
procurement and protoyping RFQ, has been negotiated and agreed in principle, but is
still awaiting high-level sign-off. It should be noted that this HoA does not currently
cover the scope to complete of RFQ design, procurement of components and
manufacturing, testing or delivery.
Consequently, the WP team is planning with the WU leaders to develop at least four (4)
‘technical annexes’ (cope / statements of work (SoW) and technical requirements and/or
technical specifications needed for the three separate IKC Agreements. These should be
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agreed before Q4 2015.
To be able to accomplish this:
- ESS is investigating options to bring additional resources into the WP team to assist
with the development of technical annexes including requirements and interface
definition, and for better liaison and coordination of activities and interaction between
ESS and the partner WUs.
- a ‘warm linac’ interfaces and integration meeting is planned for 15 May 2015. This
workshop, to be held in Lund, will involve representatives from all WP 3 WUs and
importantly representatives from WPs whose systems, components and infrastructure
interface with the NCFE systems and components.
Other uncertainties that must be resolved soon are:
- whether or not an ‘injector test’ with beam for at least ISrc-LEBT-RFQ, to be
conducted at CEA Saclay, will be ordered by ESS.
- the scope and responsibilities between ESS and WP 3 IKCs for the transportation of
NCFE systems to ESS Lund.
WU 11.3.2 Ion Source (ISrc) and Low-Energy Beam Transport (LEBT) – INFN LNS
(Catania)
-
A Critical Design Review (CDR) for both ISrc and LEBT, to be conducted 10 February
2015.
WU 11.3.3 Radio Frequency Quadrupole (RFQ) – IKC by CEA Saclay
-
Work on the future test bench for couplers (design, building, utilities)
A second CDR for RFQ, will be conducted prior to commencing tendering for RFQ
manufacturing services. An initial CDR for copper procurement was successfully
conducted in November 2014. This CDR#2 is scheduled for Q2 2015, to be either at
the end of April or more likely early in May 2015.
WU 11.3.4 Medium-Energy Beam Transport (MEBT) – IKC by ESS Bilbao
-
Copper plating for the buncher prototype
Call for tender for quadrupole prototype. Documentation is currently being prepared.
Procurement of RF Solid State Amplifier. ESS Bilbao must wait for requirements from
ESS WP 8 RFS and ESS ICS before this procurement can be launched
Procurement of pulser for the MEBT chopper. Waiting on ESS ICS requirements
a Preliminary Design Review (PDR) for MEBT is planned to be conducted in the first
half of 2015.
WU 11.3.5 Drift Tube Linac (DTL) – IKC by INFN LNL (Legnaro)
-
drift tube prototypes to be developed
CDR for DTL is scheduled for June 2015.
Issues
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None
9.1.4
WP4: Spoke Cavities and Cryomodules
Accomplishments
Prototype cavities: follow-up of prototype cavity fabrication and preparation



Prototype#1 by SDMS (called “Germaine”): The cavity was successfully repaired by
the SDMS company, by re-melting the precisely located defect zone with the electron
beam. The leak test is successful and the cavity was sent back to IPNO. The cavity is
now being carefully prepared for the vertical test, scheduled mid-march.
Prototype #2 by ZANON (called “Romea”): it has been tested in vertical cryostat
during the 2nd and 3rd week of January. People from Uppsala were also attending the
test. The results are very good, as all specifications are met: the max achievable
accelerating gradient at 2K is 11.4 MV/ (spec is 9 MV/m), not limited by a defect but
by a field emission induced quench (so potentiality to go to higher gradient). The
losses at nominal field are 22 W (eq. CW), more than a factor 2 better than the spec.
The cavity is now being prepared for the baking (~48 hours @ 110 °C) and then will
be re-tested (mid april).
Prototype #3 by ZANON (called “Giulietta”): the cavity preparation (chemical
etching, HPR, clean room assembly) has been achieved in end January. The test in
vertical cryostat is scheduled for the 2nd week of February.
Power couplers:



Power coupler prototypes fabrication status.
o PMB: still waiting for the delivery at IPNO. The antenna welding is under
progress. No updated planning received but we hope for a delivery in early
march
o SCT: The two power couplers are being cleaned and prepared for the
assembly on the conditioning bench.
Doorknob: Fabrication is ongoing, no delay to report on.
Conditioning bench: the conditioning cavity is being prepared (cleaning) for the
clean room assembly with the couplers.
Cold Tuning System (CTS):

Nothing major to report on this month.
Cryomodule:



Vacuum vessel fabrication by SDMS is ongoing and is on schedule: delivery still
planned in end February.
The two sets of magnetic shielding are under fabrication and on time.
The instrumentation is undergoing a standardization action with CEA to have as
much as possible instrumentation standards for both cryomodules.
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Spoke Cryomodule valve box:

Design work is ongoing at IPNO. The long lead time components such as the valves
and heat exchanger are almost defined in order to be able to order them in the
coming weeks.
Extensive exchanges and face to face meeting with ESS to accurately define the
specifications and schedule of the IKC linked to the spoke CDS.

General:



Ongoing discussion on IK Contribution of CNRS to ESS accelerator, specially on the
contribution to cryomodule control/command
Coordination meeting on the French/Swedish contract
Meeting on Pressure Equipment Directive (PED) hold at ESS on January 15th to assess
possible impacts on WP5 and WP4.
Issues

Issue on the cavity leakage is solved.

Issue on delay with the power coupler is now under control: there will be no
major consequence on the overall WP4 development plan.
Current & Near Future Variances in Project Plan
There is still no variance in the plan expected, and none are expected in the future
9.1.5
WP5: Elliptical Cavities and Cryomodules
Accomplishments

Cavity P02 from RI has been tested after heat treatment done at CERN for
removing the hydrogen from the niobium sheet. The performances of this P02
cavity have been degraded in a similar way than for the P01 cavity with the same
amount of Q decrease.
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


The cause of the degradation seems to be a pollution of the niobium during the
heat treatment in the furnace. This degradation is unusual. The analysis of the
RGA monitored during the heat treatment sequence is being done in order to
check if some anomalous vacuum quality could be seen.
A second test of the P02 cavity is scheduled after a deeper chemical treatment to
try to remove the pollution from the surface of the niobium. The thickness to
remove is being discussed.
The helium tank of the P01 cavity has been welded at ZANON. Final machining
and last fabrication operations are in progress.
P01 at ZANON after the helium tank
welding.

The review of the manufacturing drawings of the medium beta cavities is in
progress at Saclay. Some differences with our previous design are noticed
concerning tolerances concentricity etc. Some machining reducing the niobium
sheets of the external cells of the cavities have been also added in order to ease
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




the welding of the niobium. That may cause some additional flexibility. The
analysis of the mechanical flexibility of the cavity as well as the tuning sensitivity
needs to be performed before giving our agreement to the manufacturing
drawings.
The design of the assembling toolings inside the clean room is almost completed.
It is in good progress for the tooling outside the clean room.
We launched the order of the 6 external conductors of the couplers for the
medium beta cavities.
We prepared a test of assembling a HIPPI coupler in the clean room in order to
check the toolings.
The modification of the modulator of the 704MHz klystron is completed. Tests
and conditioning have been performed up to the ESS requirements in terms of RF
pulse length (4.0ms). The frequency was 16.66 Hz (higher than the ESS
frequency of 14Hz). The maximum RF power was 1MW.
General
o IKC meeting hold in January 28th, between ESS, INFN and STFC to
assess the WP5 cavity fabrication.
o Meeting on Pressure Equipment Directive (PED) hold at ESS on
January 15th to assess possible impacts on WP5 and WP4.
Issues

9.1.6
None
WP6: Beam Delivery Systems
Accomplishments


Contributions to two papers for the ICANS XXI conference have been
produced. One paper deals with the temporal characteristics of the ESS proton
and neutron pulses, specifically how the raster system affects the neutron
pulse. The other paper deals with instrumentation and machine protection
strategy for the ESS target station; specifically producing and analyzing a
range of beam error modes and how a range of beam instrumentation can
duly detect them.
In an attempt to ease the process of tracking lattice changes and concatenate
the linac lattice sections, an established version control system (git) has been
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adopted. A common lattice file element nomenclature has also been chosen to
facilitate the concatenation process.
Now the WP06 contract between Aarhus University and ESS has been
finalized, only signatures pending, we are working on the requirements of the
raster systems. First a prototype raster scanning system with two magnets
shall be built and long-term tested before production of the final system.
In an attempt to prepare component specifications, non-ideal RSM field
waveforms, originating from realistic magnet or power supply specifications,
have been simulated.
Work has also started on the procurement process, but the actual review from
ESS side has to be clarified.
Issues

None
9.1.7
WP7: Beam Diagnostics
Accomplishments
Updated WP7 Planning transferred to P6
-Process variable list for all BI systems produces/updated
-Planning visit to CERN to evaluate BLM electronics and test optical link reciver
implementation
-Verbal agreement with Daresbury on in-kind for LWU BCM and BPM.
-Some progress on requirements update.
-Progress on cable route planning. Collaboration with ICS on cable database.
-Held several Focus meetings on diagnostics systems.
-Delivered LEBT diagnostics box design to Catania
-Planned design review for LEBT Allison scanner.
-Planned visit from Trieste and CEA/IRFU to discuss in-kind.
First discussion with Polish on possible BI in-kind
-Progress on documentation of several in-kind packages.
-Took delivery of new equipment and furnishing for new lab area
-SLAC RTM design work almost ready for board layout review & prototyping.
-
Issues
-
BI requirements update still not completed, although work is now proceeding. Inkind discussion and other work going on with “old” requirements.
Procurement process cumbersome and confusing. Need e.g. policy and thresholds
for low value procurements.
BI device data in LinacLego still needs to be moved to production version
Cost of phase reference line for BPM missing in budget. Will resolve with WP6.
Hardware interface (connector type and number of cables) with MPS needs to be
agreed soon. Currently proposed solution seem overly complicated.
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9.1.8
WP8: RF Systems
Accomplishments
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704 klystron prototypes: One contract (Toshiba) still with supplier, one project
(Thales) kicked off
Close to a HoA with ESS Bilbao for WP 8, NC RF
Update meeting with CPI/Thales on MB IOT contract. Good progress reported
Good visit from Polish in-kind partners regarding supply of 704 MHz LLRF – very good
possibility to get in kind contribution here
Reassesment of klystron deliveries for medium beta shows that plan now complies
with Mid 2019 target.
Issues



LLRF cavity and phase regulation requirement continues to be very hard to satisfy for
NC linac. Mitigation: extra feedback loop between power amplifier and LLRF – the
concept is still under evaluation. Mitigation II: rewrite requirements for beam loss in
one 1 MW-beam and one 5 MW-beam version. Mitigation III: Beam physics have
issues with the calculations – ask clarification (unchanged, I know, there has been
progress but I am not certain that the issue is solved – I would rather wait until I
know)
Cooling of klystron collectors must return 80 deg C water due to CUB issues. This
represents a number of project risks including klystron warranty, reliability, and life.
Mitigation: Under evaluation, I think a solution is close
FREIA 352 MHz spoke RF source delayed. Mitigation: a second prototype contract has
been awarded, and a third party has restarted the bankrupted company
Current & Near Future Variances in Project Plan
•
704 MHz klystron prototyping is about 2 months late. Mitigation: there is an offer
from one of the tenderers to supply a third prototype. All offers came under the
budget, so there is almost room for this, plus delivery reassessed, see above.
•
LLRF technical spec not possible to finalize on time due to requirements issue – see
above. Impact: descoping of prototype 1, further investigations on system, see
issues #1.
9.1.9
WP10: Test Stand
Accomplishments
-
RF Lab M-house: Negotiations under way between WP17 and Akademiska Hus (AH)
about renting the Southern Machine Hall of LU’s M-house for the first version of the
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modulator prototype lab. Costs for rent and electrical installations are known, costs for
other modifications are still under investigation by AH.
RF Lab (Lund): Contract negotiations between ESS and Briggen, the landlord of building
at Scheelevägen, are continuing. Signature is foreseen for 2015-03-01, moving in date
for 2015-05-01.
RF Lab (Lund): The facility is named ‘Utgård’ and is being shared with two other ESS
teams: sample environment and detectors. A coordination group including an ES&H
representative is being set up.
.
Issues
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RF Lab (Lund): WP17 has requested a second location for the lab, in the M-house of LU
(where TS1 was previously planned to go) to serve as a transitional location for the lab
before we can move into the Briggen location (Scheelevägen). This requires additional
effort and funds from WP10, neither of which are currently planned for. The move from
one location to the other will require additional manpower and money as well.
Relocation of TS1 to Uppsala will require additional efforts for coordinating this work at
a distance. The brunt of the additional workload will, however, have to be borne by WP8
and WP17.
A new test stand engineer will have to be hired in 2016. Alternatively, a temporary
position could be filled by Engineering & Integration Support Division.
Additional resources for testing of elliptical CMs in Lund are required. Risks are lack of
manpower for execution of testing. An evaluation of the resource needs is ongoing. First
estimates of the IKC from Poland show that the risk is manageable.
Current and Near Future Variances in Project Plan
-
The Test Readiness Review for the spoke cavity prototype has been postponed due to
the delays in both cavity delivery as well as RF source delivery.
The RF lab has been required to start up at an earlier date then foreseen at a different
location than foreseen. This requires re-planning and additional funds.
A new WU for the Lund RF Lab has been created in P6. According to ACCSYS PM,
funding of 500 kEUR will be available for this WU.
TS1 will be located in Uppsala. 16 MSEK of WP10’s budget will be paid to UU for the
work to be done on TS1.
New (later) delivery dates for the modulator and the klystrons will require an adjustment
of the TS1 planning.
9.1.10
WP11: Cryogenics
Accomplishments

ACCP contract award justification meeting with ALAT to explain evaluation process,
award decision and future projects with new business opportunities for ALAT took place.
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Several internal meetings regarding ACCP draft contract and negotiation approach,
particularly regarding warranty, schedule, penalties and liability to place

Technical and contractual clarification and discussion meetings with LKT upfront contract
signature took place. There was good progress on the technical questions - LKT will
update the main proposal documents. There were also constructive discussions on the
draft contract with only very few items still open that will be clarified in February.

The L4 requirements had been drafted and distributed to the related stakeholders.

Ongoing discussions with LKT and ALAT regarding TMCP budget and technical solutions

The target project is currently considering a number of options for the cold moderator
design. These design options may offer significant improvements in target performance,
but at the increased cost of greater cryogenic cooling required. The current estimated
TMCP capacity is ~ 25 kW at 17 K. Moderator design options may increase this to >35
kW at 17K. We provided the target project with an assessment the impact of these
changes on the TMCP, considering technical and schedule risk, cost and performance. A
decision on the final moderator configuration should be made in February.

The target project requested information on what would TMCP access requirements for
installation. A summary of TMCP installation requirements was drafted and sent to Daniel
Lyngh.

Provided estimate of TMCP critical spare parts and estimated cost to Target division.

Participated in a hydrogen safety meeting hosted by Fredrik Jörud (safety division).

Reviewed and commented on two documents drafted by Dr. Hans Quack – “Circulation
Pump Study” (for hydrogen circulation pumps), and “Temperature and Pressure Control
in the Hydrogen Loop”

Met with Mirko Menninga of the ESS procurement division to discuss options for TMCP
procurement. We anticipate pursuing a “negotiated procedure” to procure the cryoplant,
aiming for a better opportunity to communicate with qualified vendors, and a more
competitive procurement process. Mirko committed to research how we can pursue this
option, and we will draft a document to allow ESS to pre-qualify potential bidders for the
TMCP.

Draft SCHEDULE (SoW) to the IKC agreement between ESS and CRAS respecting the
CDS for the spoke linac was provided to IPNO (it was agreed that the schedule will be
the technical annex to the heads of agreement, which is going to be signed in the end of
March 2015)

Technical meeting on the specification of the CDS for the spoke linac was held in IPNO
22-23 Jan 2015

Negotiations with WrUT, potential Polish in-kind contributor, on providing in-kind the CDS
for the elliptical linac and the CDS for Lund Test Stand 2 were successfully completed in
Jan 2015
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ESS-WrUT collaboration kick-off meeting was scheduled on 4 Feb 2015.
Issues

The end box of the CDS for the spoke linac sticks into the DTL section with a potential
conflict that is not yet solved.

The safety valve sizing of the CMs is still missing, i.e. the SV discharge collector line
sizing is based only on rough own assumptions.

Since the location of the ACCP cold box was changed the routing of the CTL shall be
updated as well as the interface sheet (ESS-0011233).

Due to changes in the layout/arrangement of the process lines connecting the cold boxes
and warm compressor stations of the ACCP and TICP the routing of the auxiliary process
liens of the CDSs for the elliptical linac and for Lund Test Stand 2 as well as the related
interface sheets (ESS-0011310, ESS-0015217 and ESS-0015218) shall be modified.

Unclear work split with Forschungszentrum Jülich, a probable in-kind supplier of the
moderator systems including target helium cryoplant; particularly procurement needs to
be sorted out
Current and Near Future Variances in Project Plan

Full building access (including utilities) from CF / SI is currently planned for 1-May-2017.
This milestone is vital for start of the commissioning of the cryoplants. Whereas there is
no conflict with ACCP and TMCP commissioning plans the TICP commissioning would be
delayed with reference to the current schedule, however without any impact on the
project as the TICP is not needed before end of 2017 for the acceptance testing of the
CDS-LTS2 cryoline prior WP10 test stand commissioning. Future variances in P6 are
hence proposed as follows:
o TICP activities shifted for 2 months (delivery of main items between April and
May 2017)
o CDS LTS2 commissioning and SAR shifted for 2 months (July-August 2017)
9.1.11
WP12: Vacuum
Accomplishments


The vacuum test facilities; vacuum integration, material test and calibration test stand to
be supplied by STFC Daresbury under a IKC are now in fabrication with delivery schedule
for the Q2/ Q3 2015.
The technical requirements for the particle test facility also being supplied by STFC were
finalized in preparation for the meeting with potential supplies of the clean rooms to be
held in Lund early in February 2015. This will allow these facilities to be order and
delivered during Q3 of this year.
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Technical discussions have now started with STFC to define the first phase of work
covering the supply of the LEDP, HEDP and LWU’s as apart of the planned UK IKC in the
vacuum area. The second phase of work will cover the supply of the LWU’s and beam
pipes for the HEBT, A2T and beam dump lines. As apart of this activity on going
discussions are being held with the beam instrumentation group to define the port layout
required in the diagnostic beam box of the LWU’s. This information will be required as an
input to the design that will be developed by STFC over the next several months. Current
plans will see the design for the prototype spoke cavity LWU completed by the end of Q2
and with construction of this unit starting during Q3 2015. In parallel with this activity,
several configurations of the diagnostic beam box will be built to check BI fit and vacuum
compatibility.
Work continues in developing the L3 and interface requirements for the accelerator
vacuum systems.
Preliminary discussions were held with the WP4 and WP5 team to establish the
preliminary requirements for the vacuum insulating system required for the cryomodules.
On going discussion continue with CAE Saclay to finalize the vacuum layout for the RFQ.
On going discussion continue with INFN on the ion source and LEBT with regard to
vacuum instrumentation and the mechanical layout of the LEBT and LEBT to RFQ
interface.
Interconnection diagrams for the Ion source, LEBT vacuum system and Ion source LEBT
control system have been prepared and forward to INFN for comment.
On going discussions continue with the Bilbao vacuum team on vacuum design
requirements, fabrication processes and testing requirements fro the MEBT and the
vacuum layout for this system.
On going work in support of the ICS VIT (vertical integration test) project continues.
Work continues on cables, racks, controllers etc. for the accelerator vacuum systems.
Discussions were held with the RF group on klystron integration including
recommendations on ion pump controllers and klystron interlocks.
Potential suppliers for the supply of the instrument venting system have been identified
and meeting with them are currently being planned.
Meeting was held with the TD to discuss piping of the target moderators and options for
providing an active water leak detection system.
Re-planning of WP12 continues.
Members of the ESS vacuum team made a visit to SNS and one member of the team
attend a particle accelerators training course on vacuum science.
A second interview was held with a potential candidate for the vacant Vacuum System
Engineer’s position. The final decision on making this candidate an offer is pending a
Skype interview with a second candidate for this position scheduled for next month.
Ongoing organization of AD seminars continues.
Issues
•
None
Current and Near Future Variances in Project Plan
•
9.1.12
None
WP13: Safety
Accomplishments
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 Lali Tchelidze back to work 50%.
 Need of additional resources were addressed once again. It was agreed with Gunter
Muhrer that Riccardo Bevilacqua will continue working 40% of his time on AD safety
related issues.
 Luigi Esposito was hired to join the team 50% of his time in the beginning of February.
Luigi will be based in CERN most of his time, but will spend entire February and then
around a week each month at ESS.
 Luisella Lari also joins 30% of her time from the beginning of February.
 Duy Phan was hired and will join the team at the end of February as a general safety
engineer.
 AD safety representative (Lali T. or a substitute as needed) was present at every
Physical Plant Working Group and Safety Advisory Group meeting.
 Regular internal safety bi-weekly meetings were planned starting in February.
 All major tasks were identified and put together in a safety plan. All of them will be
tracked in JIRA, final reports will be uploaded in CHESS. The plan is in line with ES&H
project plan.
 A number of completed tasks that are currently documented in JIRA only will be written
in a form of technical notes and be reviewed and approved in CHESS.
 SSM requirements breakdown for AD safety is ongoing. AD representative will be
included in the discussions starting in February.
 Information was requested about the chemical composition, density and water content
of various clay materials that CF plans to use on the site. This will be used in a new,
detailed radiation shielding analysis.
 Information was requested about the concrete chemical composition, density and water
content that CF uses on the site. This will be used in a new, detailed radiation shielding
analysis.
 AD provided input on size/shape/density/composition of stackable concrete shield
blocks.
Issues
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

No approved procedure for designing shielding.
The decision-making processes various from task to task.
Technical shielding notes missing in some cases.
The CF design, in some cases, is inconsistent with the existing technical shielding
notes/”official” decisions.
9.1.13
WP14: Accelerator Integration
Accomplishments
Systems Engineering
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Continued development of L4 requirements by Lead Engineers.
Review of L3 requirements for consistency, etc.
Review of L2 requirements in preparation for delivery to the Annual Review
Accelerator Engineering

Iñigo Alonso began work as Lead Engineer for HEBT, Dump Line, & Dog Leg
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Selection of a single candidate for invitation to 2nd interview (LE post)
Reliability/Availability
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Formation of ESS-wide RAMI working group by the ACCSYS Reliability Engineer has
been a success, and work has started to align the various approaches and
expectations of each division.
Continued work on FMEA for the cryoplant, with results passed to the cryo group for
consideration in relation to the purchase of the cryoplant.
FMEA study on RF & vacuum systems ongoing
Issues


9.1.14
Staffing remains a problem, however it is hoped that a LE post will be filled soon
Some prioritization issues related to the order in which requirements are authored.
This will be solved in conjunction with the Systems Engineer.
WP15: Electrical Support
Accomplishments
Grounding system
 Detailing of the grounding mesh for the LINAC Front End (Level 090) has been done
together with the CF designers. Karin Svedin thinks that we should take the 1 x 1 m
mesh size to the CCB.
 Site-meeting with CF on the construction of the grounding mesh in the Klystron
Gallery floor, there was some uncertainty about the requirements (mismatch between
text and illustration), this was cleared up so the design could continue.
 Review of grounding mesh for Klystron Gallery (G02) has been performed; we had
some comments on the placement and number of connection points installed in the
floor: The floor grounding points were removed from the floor above the LINAC Front
end (Loading/Access Hall – G02.100.5.001) as they are not required here.
Electrical systems
 Including procurement in the project plan. The thinking is that the work package has
to procure electrical cabinets, low-voltage switchgear, earthing bars and cables. The
cables and electrical cabinets should be catalogue items that are ordered as needed
via a framework agreement.
 There is still a lot of on-going discussion and design work with the routing of power
cables and the entry into the electrical substations. The collisions with the cooling
pipes are (probably) being resolved, of course CF-HVAC is now having a go at
grabbing all available space.
 Discussion with CF on using their NEPLAN model to perform dimensioning of the
power cables and protection circuits for WP 15. CF agrees, so we can go ahead once
there is a task written up for the consultant. The Design Office (via Magnus Täcklind)
will deal with the consultant via the ESS framework agreement.
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 The CRYO-system vendor is now known, so CF can start work on the substations for
the cryoplants. The electrical requirements in DOORS should be reformulated so that
CF can get their requirements directly from the vendor’s documentation.
Cabling

Evangelia is working with the designers on producing an estimate of the costs and
amounts of “control”-cabling required for the accelerator systems (An estimate for
the CNPW-cabling exists).
Issues

None
Current and Near Future Variances in Project Plan


9.1.15
Adjustment of project plan to achieve a better match between the project plant with
procurement needs and the order of installation. The purpose is to procure power
cables and electrical cabinets in 2 – 3 “blocks”.
Upcoming task, “11.15.2 Electrical System Modeling”, staring in Feb/March instead of
Jan. The reason for that is that I have decided to use this task to extend the NEPLAN
model created by CF to cover the electrical installations inside WP 15’s scope (Gallery,
Front-End, CRYO) to verify the cable dimensioning form the preliminary design and to
determine the requirement for overload protection. The ESS has no on-site resources
that can “drive” NEPLAN. Therefore, the WP will use the ÅF-consultant that CF uses,
but it will take a few weeks to contract the person. On the other hand, re-using CF’s
model will shorten the task significantly so overall there will be no delay.
WP16: Cooling Support
Accomplishments
Cooling Systems
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
Finalized the work of the klystron collector task force.
o The summary of the work was presented at CCB in 2015-01-29. The updated
requirements were accepted but CF still needs to come back with cost impact.
o Details and MoM concerning the work can be found on confluence.
Visited SNS and met with Jim Schubert and George W Dodson.
o Tour of accelerator & instrument halls
o Meetings with Jim concerning accelerator cooling systems
o Meetings with Lorelei Jacobs and John Denison concerning instrument cooling
Discussions with Benjamin Cheymol regarding the Farday Cup and Emittance Meter
Units.
o These are the only water-cooled beam diagnostic tools.
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o Requirements are identified and those already known are also agreed upon.
o Some data is still unknown, e.g. pressure drop.
Met with Tomi Pakarinen for a discussion on waste water handling.
o We cannot have an outlet to the outside of FEB, all handling will have to be made
on the inside.
o It is foreseen to have tanks located in FEB in case a system needs to be drained.
o A continuing meeting planned in February.
Updated a draft of a Service Level Agreement (SLA) with NSS, and sent to Rob
Connatser for review and comments.
o Question regarding WP16 budget for NSS instruments still ongoing.
Met with Evangelia Vaena and discussed cable inventory.
o Difficult to give detailed information at this stage since the options are so
numerous. E.g.
 Where do we install connection boxes, if any?
 Where will the instruments be located?
 Instruments for couplers still to be discussed!
o Provided Evangelia with an updated spreadsheet with estimated cable types and
quantities for WTRC system.
Attended several Physical Plant Working Group meetings hosted by David McGinnis
Attended contract meeting with Linde Kryotechnik and discussed technical requirements
for the conventional cooling system.
Updated Energy Inventory Spreadsheet for Erica Lindström (Energy Group)
Initiated an effort to update heat loads in the “equipments summaries spreadsheet”,
ESS-0007859
Continued work together with Edgar Sargsyan concerning requirements for DTL tanks
and magnets.
o Edgar updated heat loads (minor adjustments)
o Continued discussions with Francesco Grespan concerning DTL cooling system.
o Requirements for magnets and DTL are identified but some data is still only
preliminary.
Met with Aurelién Ponton and worked on the requirements for IS and LEBT.
o Requirements are now identified but some data is still missing.
 Need to resolve pressure drops so that we can decide on IS/LEBT cooling
concept.
Participated in “process system meeting” with Ronny Sjöholm. The meeting aims at
gathering all stakeholders concerning water cooling, i.e. WP16 (represents target, ACC
and NSS) & CF.
o WP16 will still meet with CF on separate technical meetings.
Met with Markus Olsson from chopper group for further discussions on requirements.
Further discussions with Xilong Wang, Philipp Arnold and Wolfgang Hees concerning
water cooling for cryoplants.
o It is foreseen that WP16 and WP11 collaborates regarding in compressor building
piping works.
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Started work on a Water Consumer Guidelines, the aim is to specify design codes,
standards and regulations that designer and manufacturers of cooling skids and systems
must adhere to.
Reviewed ACCSYS primavera schedule for WP16 to assess compatibility between WP16
and other work packages and establish appropriate links. Will review this in February
with Luisella.
Selection of sustainable materials

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Met with Judith Freita Ramos and discussed materials used by NSS. Judith will prepare a
spreadsheet with common materials together with comments regarding impact, amount
of material, etc. It seems NSS has about the same type of materials as the accelerator,
only a few really unique ones, e.g. large amount of wax and boron.
Plans to schedule a meeting with Matthew Conlon concerning how selection of
sustainable materials ties in with QA/QC as well as in kind requirements. Hopefully done
in January or February.
Issues

No critical issues but some minor are:
o The current CF pipe layout in the FEB goes into AD envelope. This will be
resolved during February.
o Waste water handling in FEB needs to be resolved. Risk of not meeting SSM
legislation.
o Hoses for accelerator cooling systems is a major reliability issue. WP16 would
prefer that stainless steel tubing is used whenever possible instead of flexible
hoses. This would decrease both maintenance time and the risk of leaks.
o Difficult to plan work for instruments. The three first instruments are not located
close to each other so they cannot share a common cooling skid. Moreover,
choppers are located at various positions along the beam line. The cooling system
also needs to be flexible and reliable.
9.1.16
WP17: Power Converters
Accomplishments
1)- 330kVA modulator prototype – Ampegon contract
The new version of the TDR has been prepared with more intensity. According to Ampegon,
the High Voltage Transformer design had to be reviewed and new calculations needed to be
performed. Sometime has been spent on this activity. Another aspect was the type of
capacitors to be used:- ESS had specified polypropylene type and the company is willing to
use electrolytic which is not in line with the specifications. According to Ampegon, these two
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points have caused some delay in the delivery of the TDR and had asked for a few more
weeks to deliver the TDR. A formal request for the new delivery date has been issued.
2)- Reduced Scale modulator prototype
The development of controls/regulation software has advanced. The regulation of the
different conversion stages on the low voltage conversion side has been successfully tested
on an individual basis using dummy loads. A plan B was discussed with the accelerator
division project management for the design and procurement of the High Voltage oil tank
assembly. The strategy includes the design of the entire system in the framework of a
collaboration with LTH followed by construction by an external company at the outcome of a
new call for tender. This strategy was approved and the design and prototyping work at LTH
has started. The procurement division at ESS was informed of this new initiative and agrees
with it.
3)- Feasibility study on pulsed quadrupole magnets
A new meeting was held with Elettra to discuss the advancement of their studies. Some
progress has been made on the pulsed magnets pre-design. At the time of this meeting, it
was agreed that the same kind of work would start on the feasibility studies on the power
supplies. It has been agreed with Elettra that a feasibility assessment report should be
prepared by Elettra and sent to ESS for distribution to the Technical Board members before
the final decision is taken at the next TB to be held on March 5th. Discussions have been
engaged with colleagues from the ICS division in order to check for any possible
showstopper from the controls and machine protection points of view.
4)- High power laboratory at LTH
A decision was made to go ahead with renting the Southern Hall in the M-building of LTH in
view of testing the reduced scale modulator prototype with a HV resistive dummy load. A
meeting was held with Akademiska Hus to sort out the last technical details and to agree on
the next spets in view of writing and signing the contract. Akademiska Hus will prepare the
renting contract that will be submitted to the WP10 for the follow up on the formalities from
ESS side.
9.1.17
WP99 Accelerator Infrastructure & Installation
Accomplishments
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Held internal review on Klystron Gallery chaired by M. Jensen
Klystron Water Task Force finished generating new requirements
Dump changed presented to CCB and accepted
Stub Chamfer change request at CCB accepted
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RF Group will use portion of Cold Box Building as klystron acceptance area
Hired contractor in Design Division to assist Gallery Layout
Issues
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Lack of verification of AD-SI requirements
CF not following agreed on workflow as demonstrated with electrical conduit pipes to
tunnel
Waste generated in Gallery may be considered activated until proven otherwise
Removal of Stub Heating not resolved
Current and near Future Variances in Project Plan
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A30760 Preliminary Integrated installation plan ready by 07-Jan-15 -> 15-Mar2015 NEW
A42740 Level 3 integrated installation plan completed by 13-Jan-15 -> 15-Mar2015 NEW
A48730 Technical Lab preliminary design accepted complete by 03-Nov-14 -> 03Jun-2015
A33760 Level 3. 3D model of the tunnel complete by 24 Nov-14 -> 24-Jun-2015
A42740 Level 3 Integrated installation Plan complete by 07-Nov-14 -> 07-Jun-2015
A42750 Installation Plan CDR complete by 10-Nov-14 -> 10-Jun-2015
A33780 Cable routing design Gallery complete by 26-Nov-14 -> 26-Jun-2015
A33790 Air Piping routing design tunnel complete by 27-Nov-14 -> 27-Jun-2015
A33750 Preliminary Alignment network lay-up complete by 19-Nov-2014 -> 19-Jun2015
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