g2p/GEp Beamline
Tim Michalski
Project Lead
Overview
• Facilitate the design, procurement, and
build of the beamline – up to the target
chamber
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g2p/GEp Beamline Overview
Experimental Plan
Project Overview
Project Status
Project Challenges with Risk Mitigation
Project Schedule and Milestones
Beamline Overview
A second configuration will have the target at the pivot and a longer articulating arm.
Experimental Plan
Run #
1
2
3
4
5
6
7
8
9
10
11
12
27
28
13
17
15
16
18
19
20
21
26
22
23
24
25
Bam
Energy
2.257
2.257
2.257
2.257
1.159
1.159
1.159
1.159
1.706
1.706
1.706
1.706
2.257
2.257
3.355
3.355
3.355
3.355
2.257
2.257
2.257
2.257
1.159***
3.355
3.355
3.355
3.355
Beam
Target
Current
Angle Target Location
1 uA
20 87 cm upstream
50-130 nA
90 87 cm upstream
150 nA max 90 87 cm upstream
50-130 nA
20 87 cm upstream
1 uA
20 87 cm upstream
50-130 nA
20 87 cm upstream
50-130 nA
90 87 cm upstream
150 nA max 90 87 cm upstream
1 uA
20 87 cm upstream
50-130 nA
90 87 cm upstream
150 nA max 90 87 cm upstream
50-130 nA
20 87 cm upstream
50-130 nA
20 87 cm upstream
50-130 nA
90 87 cm upstream
1 uA
N/A 87 cm upstream
50-130 nA
0
87 cm upstream
50-130 nA
90 87 cm upstream
150 nA max 90 87 cm upstream
1 uA
N/A
At pivot
50-130 nA
90
At pivot
150 nA max 90
At pivot
50-130 nA
90
At pivot
50-130 nA
90
At pivot
1 uA
N/A
At pivot
50-130 nA
90
At pivot
150 nA max 90
At pivot
50-130 nA
90
At pivot
Target
Septa Magnet
Dump
Material Target field
N/A
N/A
Hall A Dump
N/A
0.0
g2p Yes - 6 deg Local Dump
NH3
5.1 T
g2p Yes - 6 deg Local DumpCarbon(?)
5.1 T
GEp Yes - 6 deg Local Dump
NH3
5.1 T
N/A
N/A
Hall A Dump
N/A
0.0
GEp Yes - 6 deg Local Dump
NH3
2.5 T
g2p Yes - 6 deg Local Dump
NH3
2.5 T
g2p Yes - 6 deg Local Dump Carbon(?)
2.5 T
N/A
N/A
Hall A Dump
N/A
0.0
g2p Yes - 6 deg Local Dump
NH3
2.5 T
g2p Yes - 6 deg Local Dump Carbon(?)
2.5 T
GEp Yes - 6 deg Local Dump
NH3
2.5 T
G2p Yes- 6 deg Local Dump
NH3
5.1T
g2p Yes - 6 deg Local Dump
NH3
5.1 T
N/A
N/A
Hall A Dump
N/A
0.0
g2p Yes - 6 deg Hall A Dump NH3
5.1 T
g2p Yes - 6 deg Local Dump
NH3
5.1 T
g2p Yes - 6 deg Local Dump Carbon(?)
5.1 T
N/A
N/A
Hall A Dump
N/A
0.0
g2p No - 12.5 deg Local Dump
NH3
5.1 T
g2p No - 12.5 deg Local Dump Carbon(?)
5.1 T
GEp No - 12.5 deg Local Dump
NH3
5.1 T
No – 12.5 deg Local Dump
N/A
2.5 T
N/A
N/A
Hall A Dump
N/A
0.0
g2p No - 12.5 deg Local Dump
NH3
5.1 T
g2p No - 12.5 deg Local Dump Carbon(?)
5.1 T
GEp No - 12.5 deg Local Dump
NH3
5.1 T
Comments
Straight Thru Beam at nominal height.
Thru Target(?) - Optics
Straight Thru Beam at nominal height.
Thru Target(?) - Optics
Straight Thru Beam at nominal height.
Thru Target(?) - Optics
Target nominal height
Target nominal height
Straight Thru Beam at nominal height
Longitudinal target polarization run
Thru Target(?) - Optics
Straight Thru Beam at nominal height.
Thru Target(?) - Optics
Optics Transform
Straight Thru Beam at nominal height.
*** - FZ1 and FZ2 in position for 2.2 GeV run, but with half field strength on FZs and Target magnets
Rev 3
Thru Target(?) - Optics
Run Trajectories
FZ1
Target
Target
FZ2
FZ1
FZ2
Region 1
Slow Raster/Calorimeter Stand
Regions 2 and 3
Upside Down Girder – Region 2
FZ1 Magnet Stand – Region 3
Viewer – Region 3
Beam Diagnostics Girder
“Articulating Arm” – Region 3
Project Overview
• Design, procurement, component calibration
and testing
– Now through May, 2011
– Some components arrive after May
• Access to Hall A for installation
– May 16, 2011
• Installation completion – start of Physics
– November 19, 2011
Project Status
• Regions 1 and 2 designs complete and material
ordered
• Region 3 design complete – procurement under
way
• Calorimeter controller repaired and SW upgrades
complete
• I&C electronics designed and being built
• New Transport electronics being built for existing
BPMs in Hall A
• Safety systems for experiment reviewed
• Resource planning integrated into 6MSD
schedule
Project Challenges
• BPMs and BCMs for Low Current data
– Mitigation
• BPM – short M15 style, new electronics, tested in
North LINAC
• BCM – new receiver, tested in Hall A
• FZ Magnet PS requirements evolving
– Need up to 4 kG, requiring 231A for FZ1
– Need up to 8 kG, requiring 465A for FZ2
– Mitigation – assessed capabilities of magnet
power supplies in Hall C – meet requirements –
assembling spares
Project Challenges
• Acquisition of equipment from various
sources
– FZ magnets, corrector magnets, slow raster,
new BPMs, power supplies, controllers
– Mitigation – get control as soon as possible,
test and calibrate early (before installation)
• Resurrection of Tungsten Calorimeter
– Reposition in beamline, re-establish
functionality, recalibrate
– Mitigation – Controller extracted from Hall A,
repaired, SW complete
Project Challenges
• Slow Raster control issues in previous
experiment
– Mitigation – New function generator – Testing
in Progress by Physics Fast Electronics
Group
• Installation at the same time as 12 GeV
upgrades during 6 month down
– Mitigation – tied to detailed 6MSD planning –
all resources identified in schedules – have ~3
weeks float
Project Challenges
• Not all material for installation on site yet
– Mitigation
– FZ2 Stand procurement being managed –
potential impact to 6MSD installation reviewed
– Viewer and Articulating Arm Girder /
Positioning – manage through Machine Shop
and local vendors
Safety – PSS / FSD
• Uses standard BLA system components
• Monitoring FZ magnet PS current – limits set to ensure
beam is controlled successfully through the chicane
• FSD masking for Calorimeter Operation
• Viewer in chicane – allows MCC Operators to view beam
for steering confirmation
• Thermocouples on LC dump
• Viewer on LC dump – allows MCC Operators to view
beam for steering confirmation
• Update PSS sweep procedure as required after walkthrough, equipment installation
• “Lock Out” FZ2 stand control – remove controller
Beamline Installation Schedule
Beamline Installation Milestones