1. e-Beams Systems Update
David Schultz
People
ARR
Linac Installation
Undulator Production
MMF Operations
CR Impact

2. New responsibilities in Linac and Undulator
Jose Chan is the new Control Account Manager for LCLS Injector and Linac Systems, taking over from Eric Bong.
Geoff Pile is the new Control Account Manager for Undulator Systems at ANL, taking over from Steve Milton.

3. Injector Accelerator Readiness Review
Safety Assessment Document
The LCLS SAD for Injector Commissioning was approved Jan. 24th.
Accelerator Readiness Review (ARR)
The ARR for Injector Commissioning was held October 31st.
The committee (in part) reconvened March 14th.
The four pre-start items were cleared by the time the ARR report was released.
Four comments from the SSO were also addressed.
Approval to commission was given April 4th.

4. Injector Accelerator Readiness Review

5. Injector Commissioning
Injector Commissioning is underway.
Commissioning has been impeded by faulty hardware
Problems with quality of fabrication and installation of diagnostics
Instituted an RFI sign-off sheet, requiring approval from physics, engineering, controls, and metrology.
First electrons from the gun
4/5/07
Courtesy P. Emma

6. 2007 Commissioning Sector 21 Sector 20 Laser BLM BC1 LX L1 Ins/SAB
stopper
BLM
BC1 LX L1
Ins/SAB
Wall
See P. Emma’s talk

7. Installation Schedule
6 MeV
135 MeV
250 MeV
4.30 GeV
13.6 GeV
Linac-0
L =6 m
Linac-X
L =0.6 m rf
gun
L0-a,b
Linac-1
L 9 m
Linac-2
L 330 m
Linac-3
L 550 m
BTH west
25-1a
30-8c
...existing
linac
21-3b
24-6d
21-1
b,c,d X
undulator
L =130 m
BC2
L 22 m
BC1
L 6 m
DL2
L =275 m
Now commissioning
2007 down
SLAC linac tunnel
research yard

8. LCLS Installation and Commissioning Time-Line
June 29, 2007 rmb DRAFT
X-Ray tunnel/FEH Install
X-Rays in FEH
LTU/Und/Dump
FEE/NEH Install
First Spont. Light
CF Early Occupancy
X-Ray Systems
Checkout - Commission
e- beam & Photon Systems Checkout
CD-4b
CD-4a S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M
2007
2008
2009
PPS
PPS
2010
Photon Flux Measurements
Controls checkout
Re-commission Inj/BC2 to SL2
Operations
LTU/Und/FEE Commissioning
NEH Operations
Linac/BC2 Commissioning
linac/BC2 Install
FEL Commissioning

9. ’07 Downtime Installation
Sept., Oct., Nov. 2007, a very tight schedule.
Installation of BC2 and L3, not L2.
Installation to support BTH-West
Cable plant installation through the BSY
Coordinated through the AD downtime schedule
IRR held March 16th.
All hardware is RFI or in the shop.
Cable plant inst. schedule is tight.
Scheduling and coordination between the different disciplines will be vital.
See breakout talks

10. ’08 Installation LTU/Undulator/Dump
Readiness milestone for Early Occupancy installation held constant at Nov. 1, 2007
Begin installation with:
Metrology
Beamline supports
Cable plant
Installation scheduling coordinated by R. M. Boyce
Installation contracts need to go to bid this summer.
Designs are being completed to support this.
See breakout talk

11. Undulator Systems Components
Beam Finder Wire parts are in fabrication.
Wire card a SLAC responsibility, design underway.
RF Beam Position Monitor in production.
Body fabrication is in procurement.
First 3-BPM test results look promising, tests are ongoing
Vacuum Chamber – next slide
These systems are all near the critical path.
Quadrupole magnets’ 1st article in measurement at ANL.
Support/Mover system fabrication award made.
WPM/HLS FDR was held March 22nd
Production moving forward
See G. Pile’s talk

12. Undulator vacuum chamber - 1
As described last October, two competing designs were carried to the prototype stage, SS ‘4-Weld’ and Al ‘Clamshell’.
A review of Undulator Vacuum Chamber Design Options, was held Feb. 22nd
Permeability was a significant concern, and measurements and simulations were presented at the review
The 4-Weld design was selected to remain the baseline.
Recent measurements of the undulator field inside the SS vacuum chamber have raised concerns.
Physics requirements on field variations have been refined.
Short scale field variations cannot be measured with sufficient accuracy to remove doubt.
No satisfactory QA process for permeability is in hand.
The project needs to pursue other alternatives.

13. Undulator vacuum chamber - 2
The following course of action is being pursued:
Stainless steel design
Production has been stopped
Al extrusion design
Fastest option to a full scale prototype, and production
Accelerate machining trials & internal polishing tests
Cu tube design
Develop to the prototype stage as an option for 800eV operations.
Al clamshell design
Pursue polishing trials on existing chamber samples
See breakout talks

14. Undulator Magnetic Measurement
All 40 undulators are at SLAC.
The MMF is in production mode, but behind schedule.
6 undulators finished magnetically, but not RFI.
Undulators need support shims which have been redesigned and are being remade.
Production rate of 1 per week has been demonstrated.
“Exceptional” cases continue to be a problem. Adjusting the gap at the rough tuning stage requires a larger-than-specified range of wedge spacers A broader range of spacers are on order.
See breakout talk

15. CR Impact
Uncertainty as to which programs could continue and which needed to be deferred.
Led to lost efficiency and lost time.
Procurements were put on hold until the impact of the CR was resolved.
Linac and Controls
BC2, L installation was held to schedule.
LTU, Und., Dump schedules set to accomplish CD-4a.
Additional manpower is needed to recover lost time.
Additional costs are needed to speed procurements.

16. CR Impact Undulator work at ANL
The transfer of funding to ANL was slowed until the impact of the CR was resolved.
Significant procurements at ANL were put on hold.
Delays in ANL deliveries results in delays to Undulator assembly at SLAC
Undulator assembly and installation is on the CD-4a critical path
Additional manpower and costs are needed to recover lost time.

20. Issues The ’07 downtime Linac installation schedule is very tight.
The schedule shows completion of installation
Hardware availability is being closely monitored
Controls checkout (last) is at risk.
The Undulator vacuum chamber design is changing
This is on the critical path.
A task force has been formed to manage the parallel options being pursued.
Cost and schedule plans for these options are developed.
The MMF is in production.
Have not yet sustained production throughput.