LCLS
Undulator
Prototype Status
and Measurement System
Marion M. White
ANL-ASD-LCLS
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Outline
Scope
Plans and Procurement Philosophy
Status
Design Improvements
Technical Risk Mitigation
Schedule Risk Mitigation
Measurement Requirements
Summary
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Scope
33 (+7) Precision magnetic arrays with canted poles
33 (+7) Support/alignment systems including
Cradle that supports the undulator, BPM, and
electromagnetic quadrupole.
CAM movers and motors enabling precision remote
positioning, alignment, and adjustment of the cradle.
Translation system allowing remote retraction of an
undulator out of the beamline and precision, reproducible
re-insertion.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Scope: Comment from Last FAC
LCLS
“The roll away option should be available from
remote and controlled via length encoders etc.”
Done.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Scope: Spares
4 complete undulator modules -- assembled,
together with spare BPM and spare quadrupole,
tuned, fiducialized, aligned, and stored in a
temperature-controlled environment.
3 modules - ready for installation at any time.
1 reference module - maintained in a thermally-stable
environment - used for long-term stability monitoring.
3 undulators, tuned and fiducialized
3 complete support and mover systems
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Scope: Quadrupole Magnets
Comments from last FAC:
“A quadrupole is still rigidly connected to the corresponding
undulator segment. Thus quadrupole and undulator segment can
only be moved together via the micro mover system.”
“The quadrupole in then present proposals are fixed Permanent
Magnet ones. BBA then only works via electron beam variation. This
proved to be not favorable an inaccurate in TTF due to Linac
instabilities. BBA is much superior implemented if the quadrupole
strengths can be altered. Electromagnets or adjustable PM one are
recommended for this purpose.”
Quadrupoles are now electromagnetic
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Scope: Layout
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Plan Unchanged: Long Lead Items
LCLS
Procure the long-lead items as early as possible in
FY05.
Issue the RFPs such that the awards can be made
in March 2005. The Continuing Resolution causes
uncertainty as to when money is available at ANL.
We should know whether money will be available
by March 2005 before the RFPs go out in January.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Plan: Assembly
Contracts for undulator structure assembly will be
awarded to contractors pre-qualified in precision
mechanical fabrication and assembly. Multiple
awards (2) are based upon low price, technically
acceptable source selection strategy. Production of
units 3 thru 40 begins in FY06.
1st article undulator assemblies will be ordered
from each vendor in FY05; this was proposed and
well rec’d at the DOE review.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Plan: Acceptance Sequence
First article undulators from each vendor are:
Factory/Site accepted and shipped to ANL
Magnetically tuned and mechanically measured at ANL
Tested together with 1st article support/mover system
Accepted by ANL
Shipped to the SLAC Magnet Measurement Facility (MMF), together
with complete traveler docs and Acceptance Criteria Listing (ACL)
Re-measured at the MMF and Fiducialized
Assembled together with
Measured and fiducialized quadrupole,
Calibrated, cleaned, baked, and fiducialized BPM,
Cleaned, baked, and aligned vacuum chamber
Calibrated cradle/mover/rail system
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Plan: Delivery/Installation
The complete, aligned module is Ready for Installation (RFI)
If the Undulator Hall is ready, the unit is installed.
Else, it is transferred to long-term, temperature- and humiditycontrolled storage.
Subsequent undulators are shipped directly to SLAC for tuning,
measurement, fiducialization, final assembly, installation, etc.
Details of the interfaces between undulator modules and other
systems are being documented with Interface Control
Documents (ICDs) that are to be signed off by all relevant
parties.
Acceptance Criteria Listings (ACLs) will clearly document the
performance on all acceptance criteria. Non-conformances will
be clearly documented and dealt with as appropriate.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Philosophy: Roles and ResponsibilitiesLCLS
The APS undulator experts responsible for design, construction,
assessment, and value engineering of the prototype, are
responsible to oversee the long-lead procurements and
undulator production.
Responsibility for vendor management, vendor oversight and
performance, and for undulator performance rests with ANLAPS.
ANL-APS effort is associated with many of the SLAC activities, in
a “Lead, Mentor, Consult” role.
Lead – ANL leads the effort; SLAC personnel observe/participate.
Mentor – SLAC leads the effort – ANL observes.
Consult –ANL personnel are available for questions,
troubleshooting, brainstorming.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Status: Reviews and Preparation
External Design Review - [March 04]
Internal design review [6/04]
Requirements meeting – 6/04
Final design review of the undulator structure
scheduled Sept. 16-17, but was moved to midNovember as a result of the CR/replan. Kem
Robinson, Chair.
Preparation of drawings and procurement
packages for the long-lead items is almost
complete
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Status: Long Lead Procurement PackagesLCLS
Titanium Strongback
Magnet Poles
Magnet Blocks
Procurement packages for all
three items are almost complete.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
40 Precision-Machined Titanium Strongbacks LCLS
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Status: Strongback Drawing Done
8
7
6
5
3
4
2
1
R
E
V
I
S
I
O
N
S
Z
O
N
E
R
E
V
D
E
S
C
R
IP
T
IO
N
B
Y
A
P
P
R
O
V
E
D
D
A
T
E
3
2
2
3
.2
0
2
2
1
8
.2
0
5
6
1
2
1
3
.2
0
1
5
4
.6
1
2
7
.0
5
E
1
2
7
.0
5
1
6
5
.6
1
5
1
.0
2
8
.4
3
2
.0
0
E
7
7
.3
2
0
8
.2
0
1
2
7
.0
5
8
5
2
.5
5
8
5
2
.5
5
8
5
2
.5
5
8
2
.8
6X1
2
0
.=
1
7
.2
0
7
2
0
6X1
2
0
.=
7
2
0
6X1
2
0
.=
7
2
0
1
4
2
.4
.0
5 A
1
2
8
X
1
5
.0
6
4N
E
A
R
S
ID
E
,6
4F
A
R
S
ID
E
4
5
.0
9
0
.0
S
E
C
T
IO
N
S
E
C
T
IO
N
B
-B
1
7
0
0
.0
0
+
.0
0
-.0
2
2
XM
1
2
x
1
.7
5
-6
H
1
0
.2
5
3
3
S
E
ED
E
T
A
IL
2
8
A
-A
D
3
.2
3
4
0
0
.0
0
+
.0
0
-.0
4
-D
-
.0
5
.1 A
-B
-
D
-C
1
2
5
1
6
.1
6 CAB
D
7
XM
6
x
1
.0
-6
H
1
3
0
.0
0
3
.2
1
6
6
.8
2
0
.1
6 BAC
1
1
3
.0
0
1
6
XM
8
x
1
.2
5
-6
H
3
.2
3
0
4
.8
A
B
5
3
.0
0
C
R
1
0
.0
0
6
X2
0
.0
0
8
.5
1
.6
4
X1
2
9
.0
0
9
0
1
8
0
1
.6
8
3
.0
0
9
0
+
.0
5
1
6
6
.0
0 -.0
0
1
8
0
.0
5
8
.5
-A
8
3
A
B
8
3
C
1
1
0
.0
0
C
6
XM
6
x
1
.0
-6
H
3N
E
A
R
S
ID
E
,3F
A
R
S
ID
E
9
3
6
X1
7
1
.0
0
9
3
1
5
C
2
X1
3
6
.0
0
6
X8
3
4
.0
0
6
XM
1
2
x
1
.7
5
-6
H
1
0
.2
5
3
0
1
9
2
0
.0
0
8
X5
/1
6
-1
8U
N
C
-2
B
8
X3
8
.1
0
6
X
.1
6 ABC
9
6
0
.0
0
.1
4
X6
0
.0 +
-.0
+
.0
1
6
.3
5 -.0
1
5
0
3N
E
A
R
S
ID
E
,3F
A
R
S
ID
E
2
5
1
3
6
X
1
0
.0 T
H
R
U
6
8N
E
A
R
S
ID
E
,6
8F
A
R
S
ID
E
.1
6
ABC
7
XM
6
X
1
.0
-6
H
1
2
5
1
6
.1
6 DAB
1
6
8
X1
9
.0
5
1
B
B
2
X1
3
5
.0
2
X4
0
.0
5
8
5
.0
0
5
9
1
.0
0
1
5
5
8
.6
0
1
5
6
1
.8
0
4
X1
5
0
.8
4
X5
3
2
XR
.1
2
.7
1
5
.0
4
X1
3
5
.4
1
A
L
1
4
3
-1
1
0
7
0
1
IT
E
M
S
T
R
O
N
G
B
A
C
KF
O
R
G
IN
G
D
R
A
W
IN
G
/P
A
R
T
N
U
M
B
E
R
N
O
M
E
N
C
L
A
T
U
R
E
O
R
D
E
S
C
R
I
P
T
I
O
N
A
S
T
M
B
381F2TITA
N
IU
M
G
R
A
D
E2
1
M
A
T
E
R
IA
L
/S
P
E
C
Q
T
Y
P
A
R
T
S
L
IS
T/ B
IL
LO
FM
A
T
E
R
IA
L
S
D
A
T
E
D
E
T
A
IL
S
C
A
L
E
3.2
S
U
R
F
A
C
EF
IN
IS
HINM
IC
R
O
N
S
N
O
T
E
S
:
1
.A
L
LD
IM
E
N
S
IO
N
S
A
R
EINM
IL
L
IM
E
T
E
R
S
,S
U
R
F
A
C
EF
IN
IS
HINM
IC
R
O
N
S
.
2
.R
E
M
O
V
EA
L
LB
U
R
R
SA
N
DB
R
E
A
KS
H
A
R
PE
D
G
E
S0
.3
m
m
M
A
X
.
3
.U
N
L
E
S
SO
T
H
E
R
W
IS
ES
P
E
C
IF
IE
D
,S
U
R
F
A
C
EF
IN
IS
HT
O
B
E6
.4M
IC
R
O
N
S
.
C
-C
D
1.000
L
1
4
3
-1
1
0
7
0
0
E
L
E
C
T
R
O
N
IC
F
IL
EN
A
M
E
:
T
.G
R
A
B
IN
S
K
I
M
.W
H
IT
E
S
.V
.M
IL
T
O
N
***
6
12 October 2004
Undulator Prototype Status and Measurement
5
4
3
C
D
A
T
E
M
O
D
E
LV
E
R
:
S
E
EP
A
R
T
SL
IS
T
N
L
IN
A
CC
O
H
E
R
E
N
TL
IG
H
TS
O
U
R
C
E
U
N
D
U
L
A
T
O
R
S
Y
S
T
E
M
U
N
D
U
L
A
T
O
RU
N
ITA
S
S
E
M
B
L
Y
M
A
G
N
E
TS
T
R
U
C
T
U
R
E
U
N
D
U
L
A
T
O
RM
A
G
N
E
TA
S
S
E
M
B
L
Y
S
T
R
O
N
G
B
A
C
KM
A
C
H
IN
IN
G
***
D
R
W
G
V
E
R
:
1+
S
IZ
E
:
Marion M. White
mwhite@aps.anl.gov
A
N
LD
R
A
W
IN
G
N
U
M
B
E
R
:
S
L
A
C
D
R
A
W
IN
G
N
U
M
B
E
R
:
R
E
V
.
E L143-110700
F
S
C
MN
o
2
A
R
G
O
N
N
EN
A
T
IO
N
A
LL
A
B
O
R
A
T
O
R
Y
A
D
V
A
N
C
E
DP
H
O
T
O
NS
O
U
R
C
E
11-J
un-04
D
A
T
E
R
E
L
E
A
S
EL
E
V
E
L
:
O
H
R
H
5
7
CHI
D
A
T
E
L
C
L
SM
A
N
A
G
E
R
:
S
L
A
C
S
P
IR
E
ST
IT
L
E
:
8
F
O
E
.T
R
A
K
H
T
E
N
B
E
R
G
C
A
M
:
M
A
T
E
R
IA
LD
E
S
C
R
IP
T
IO
N
:
A
3
6
7
5
8
0
0
O
I TY
R
E
S
P
O
N
S
IB
L
EE
N
G
IN
E
E
R
:
R
E
M
O
V
EA
L
LB
U
R
R
SA
N
DB
R
E
A
K
S
H
A
R
PE
D
G
E
S.7
6M
A
X
.
S
U
R
F
A
C
ET
E
X
T
U
R
EINA
C
C
O
R
D
A
N
C
E
W
IT
HL
A
T
E
S
TA
S
M
EB
4
6
.1
-2
0
0
2
D
IM
E
N
S
IO
N
IN
GA
N
DT
O
L
E
R
A
N
C
IN
G
IN
A
C
C
O
R
D
A
N
C
EW
IT
HL
A
T
E
S
T
A
S
M
EY
1
4
.5
M
-1
9
9
4
M
O
D
E
LN
A
M
E
:
AG
ERS
V
1
9
.0
5
3
8
.1
S
E
C
T
IO
N
A
N
G
U
L
A
R
.3
T
H
IS
D
R
A
W
IN
G
IS
T
H
E
P
R
O
P
E
R
T
Y
O
F
N
A
LL
IO
ABO
AT
EN
U NI
D
A
T
E
ORY
11-J
un-04
D
A
T
E
D
E
S
IG
N
E
D
B
Y
:
A RGON
D
R
A
W
N
B
Y
:
T
.G
R
A
B
IN
S
K
I
C
H
E
C
K
E
D
B
Y
:
RAT
U
N
L
E
S
S
O
T
H
E
R
W
IS
E
S
P
E
C
IF
IE
D
A
L
LD
IM
E
N
S
IO
N
S
A
R
E
IN
m
m
IN
C
H
E
S
A
R
E
F
O
R
R
E
F
E
R
E
N
C
E
O
N
L
Y
T
O
L
E
R
A
N
C
E
S
D
E
C
IM
A
L
S
X
.
.5m
m
.X
.2m
m
.X
X
.0
8m
m
S
C
A
L
E
:
0
.2
0
0
***
D
O
N
O
TS
C
A
L
E
D
R
A
W
IN
G
1
S
H
E
E
T
1O
F1
A
Status: Strongback Statement Of Work LCLS
Argonne National Laboratory
9700 Cass Avenue
The
Statement
of Work for
the
strongbacks
is ready and
signed off.
Argonne, Illinois 60439
DOCUMENT NO. L1430301-00004
STATEMENT OF WORK
FOR
LCLS UNDULATOR STRONGBACK
WBS L.1.04.03.03.01
Prepared by
Glen S. Lawrence
Date
Originator
Approved by
Patric Den Hartog
Date
XFE Group Leader
Approved by
Thomas Barsz
Date
QC Coordinator
Approved by
Marion White
Date
LCLS Undulator CA Manager
Approved by
Stephen Milton
LCLS Project Manager
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Date
LLPs Already Advertised in CBD
LCLS
Active Postings: 27/106407
Page of 1 October 07, 2004
Agency: Department of Energy
Office: Argonne National Laboratory (DOE Contractor) Location: Argonne
Posted: October 07, 2004
Type: Synopsis Title: 95 -- Titanium Strongbacks for Linac Coherent Light
Source SOL: Reference-Number-1.4.3.3.TS
Posted: October 07, 2004
Type: Synopsis Title: 95 -- Magnet Poles for Linac Coherent Light
Source SOL: Reference-Number-1.4.3.3.MP
Posted: October 07, 2004
Type: Synopsis Title: 99 -- Undulator Assembly for Linac Coherent Light
Source SOL: Reference-Number-1.4.3.3.UA
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
We have already received expressions of interest
from vendors to these postings.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Changes Under Consideration
LCLS
We are asked to consider doubling the magnet gap and
increasing the period to mitigate wakefield issues.
First indications are that it is possible without losing
the entire baseline design concept, however:
All drawings will require some modifications
A 1-meter-long (approx) prototype should made and tested
prior to production, else there is significant technical risk
Some cost increase and schedule slip are unavoidable.
Need very clear direction very quickly if this is to be
implemented into the baseline.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
The Path Forward
We shouldn’t build something that we believe
might not work
Yet - delay could cost the Project dearly
How do we quickly determine what is the best
course of action for the Project?
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Risk Mitigation - Technical
A complete prototype undulator was
designed,
reviewed, reviewed, reviewed…
constructed,
tuned,
tested,
re-reviewed, and
value-engineered at ANL.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Prototype Undulator at ANL
Vacuum
Chamber
Goes in Here
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Risk Mitigation: Technical
Simplifications (Wingless Poles, Pole Clamp (screws),
Wedge Shims, Side Shims, New Assembly Fixture)
that resulted from our value engineering effort were
implemented in the entire undulator or at least in a 1-m
section of the undulator, and the device was remeasured.
The modifications and test results were successfully
reviewed internally by in-house undulator experts. A
few additional tests were recommended, and those
were successfully completed.
A Final Design Review will be held Nov. 15-16, 2004 at
ANL.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Winged Pole
Status:(Old)
Improvements
LCLS
Wingless poles
WinglessPole
Poles
(New) Wingless
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
“Old-Style” Poles
with wings
Section with new
“Wingless” Poles
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Internal Design Review – June 04
LCLS
Charge to the IDR committee:
Is the technical performance of each of the modified
designs at least as good as the old designs, in terms of
long-term stability, precision, repeatability and other
relevant parameters?
Is the magnetic performance of the undulator with these
modifications likely to be as good as the previous
design?
Are there any concerns relevant to mass production of
40 undulators?
Any other concerns?
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
IDR Committee Findings
“The committee unanimously agreed on the value
of the design improvements for enhanced
performance and cost reduction of the LCLS
undulators.”
Destructive testing of the screws, plus
transport and re-measurement of the
undulator, were performed as requested and
completed successfully.
Good suggestions from the committee, such
as adding washers, were implemented.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Risk Mitigation: Schedule
Procurement of long-lead items in FY05
Procurement of 1st article undulator assemblies in
FY05, allowing ample time for thorough testing and
resolution of any production issues
Prototyping and procurement of two 1st article
support and mover systems in FY05, as soon as
requirements are clearly frozen and signed off
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Measurement and Fiducialization
LCLS
A review of the magnet measurement facility
(MMF) will be held October 14th 2004.
The next two slides contain the tolerance budget
for quadrupoles and undulators from the physics
requirement budget.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Tolerance Budget: Quads
Quadrupole Conventional Alignment Tolerance Budget
Quadrupole Fiducials
Pulsed Wire Center Definition
Wire to WF Fiducial (WF)
WF Fid. to Quadrupole Fid.
Vert.
10 µm
15 µm
10 µm
25 µm
Horiz.
10 µm
15 µm
10 µm
25 µm
Quadrupole BBA Offset (rms)
20 µm
20 µm
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
Tolerance Budget: Undulators
Undulator Fiducials
Hall Probe Resolution/Positioning
Needle Hall Probe Resolution
Needle Hall Probe to Mechanical
Needle Fid to Undulator Fid
LCLS
Vert.
20 µm
10 µm
20 µm
20 µm
40 µm
Horiz.
20 µm
30 µm
30 µm
20 µm
50 µm
Undulator Roll-Away Repeatability 5 µm
Alignment Quad to Undulator
40 µm
10 µm
40 µm
Grand Total
70 µm
12 October 2004
Undulator Prototype Status and Measurement
65 µm
Marion M. White
mwhite@aps.anl.gov
LCLS
FEL2004 Paper
LCLS UNDULATOR DESIGN DEVELOPMENT
Isaac Vasserman, Roger Dejus, Patric Den Hartog,
Elizabeth Moog, Shigemi Sasaki, Emil Trakhtenberg,
Marion White, ANL/APS, Argonne, Illinois 60439, USA
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov
LCLS
Summary
The procurement timeline is consistent with the Project
Schedule for completion of delivery of the 33 production
undulator modules, barring major requirement changes.
Procurement packages for the long-lead items are nearly
complete.
A Final Design Review is scheduled next month
The greatest schedule risks arise from:
Requirement and specification changes or major delays.
Funding delay.
12 October 2004
Undulator Prototype Status and Measurement
Marion M. White
mwhite@aps.anl.gov