1. Experimental Program and Endstations System (WBS 1. 3. 2) J
Experimental Program and Endstations System (WBS 1.3.2) J. Hastings, SLAC April 23, 2002
Experimental program plan: A context for 1.3.1, 1.3.2
Endstation systems
System description
Major Technical Challenges
Cost estimate
PED FY03, FY04
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

2. Experimental program Science case
Optical system requirements
SSRL: A model for construction and operations for LCLS
Schedule
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

3. Science case
BESAC Subpanel chaired by S. Leone called for science case before proceeding with an X-Ray FEL
Over 30 national and international workshops addressing science, methods and damage issues
For LCLS these culminated in the First Experiments document
Accepted by BESAC as justification for LCLS
Covers broad areas in science
Atomic physics
Plasma physics
Chemistry
Materials science
Structural biology
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

4. Optics Requirements
Focusing: Atomic physics, plasma physics, bio-imaging
0.1-1 m over full energy range
Monochromatization: Plasma physics, materials science
Resolution of at 8 keV
Harmonic control: Atomic physics, materials science
Ratio of higher harmonics to fundamental less than 10-6
Photon pulse manipulation: Materials science
Split and delay over the range 1 ps to 500 ps
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

5. SSRL Model for Existing Operations
Beamline construction
Both PRT and SSRL beamlines constructed with SSRL lead
Guarantees compatibility, uniformity and commonality
Full use of common design
Ease of installation
Beamline maintainence
All beamlines fully supported by SSRL staff
Cost effective, makes use of common systems
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

6. LCLS Using SSRL Model
Proposals will be developed by leading research teams with SSRL involvement
Proposals will be vetted by SSRL external review panel
Research teams secure outside funding with SSRL participation as appropriate
SSRL will manage all construction
Provides cost and schedule control
Provides structure to insure common design where applicable
Provides basis for establishing maintenance and support infrastructure
SSRL will operate all experimental stations-no PRT lines
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

7. Schedule for the experimental program
June 2002 call for letters of interest for experimental teams
October 2002 workshop to organize experimental teams
March 2003 proposal review by SSRL external panel complete.
June 2003 proposals submitted for FY05 start (consistent with LCLS schedule)
October 2004 experiment construction start
Note: R&D proposals in support of the experiments can be submitted at anytime as per DoE guidance.
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

8. Endstation Systems Description
Safety Systems
Absorbers-stoppers
PPS/MPS
Data Acquisition
Controls
Detectors
Beam containment
Vacuum chambers
Laser
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

9. Safety Stopper systems PPS/MPS Beam absorbers Stoppers
Be face plate
Cu absorber
Stoppers
Redundant
Hevimet 30 cm
PPS/MPS
Provide individual control of all experimental hutches
Provide controls for all machine protection
Pneumatics for valves
Laser interlocks
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

10. Laser Needed to address pump-probe timing issues
System identical to gun laser
120 hz operation
Ti:Saph 800 nm light
20-30 mJ/pulse
Common spares, common development
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

11. Data Acquisition Controls Detectors
Full automation of all critical systems
Common software development
Provide ‘collaboratory’ access for experimental teams
Provide network infrastructure for:
High performance computing
High capacity/high performance data storage
Detectors
Beam imaging and intensity
State of the art streak camera
2-d Pixel array detector
120 Hz capable
Large dynamic range
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

12. Beam containment Vacuum chambers Vacuum piping
Provide chamber for laser matter interaction studies
Provide chamber for pump-probe synchronization studies
Provide chamber for 2-d pixel array detector studies
Vacuum piping
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

13. 1.3.2 WBS to level 5
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

14. Major technical challenges
PPS absorbers: Peak fluence
Use Be face plates
Laser synchronization
At the ps level use the same methods as for the gun laser
Detectors
Streak camera
Adopt LBNL/LLNL design capable of sub-picosecond resolution
2-d detector: 120 Hz, large dynamic range
Adopt pixel array technology from HEP and SR applications
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

15. 1.3.2 X-Ray End Station Systems (FY02 Dollars, Thousands)
Name
PED Cost $K
Construction
Contingency
Total
% contingency
1.3.2
X-ray Endstation
Systems
$ 4,890
$ 8,405
$ 4,316
$ 17,612
32%
PED
$ 1,658
$ 6,548
34%
Mechanical $ $
$ 1,202
28%
Vacuum $ $ $
21%
Controls
$ 4,276
$ 1,770
$ 6,045
41%
Laser Systems
$ 1,984 $
$ 2,382
20%
PPS/MPS $ $ $
16%
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

16. Project Engineering and Design
FY03
Q1: Complete requirements document for 2-d detector
Q2: Complete preliminary design of imaging detector systems
Q3: Complete update of optics requirements document
Q4: Complete survey of existing 2-d detectors against requirements
FY04
Q1: Complete preliminary specifications for 2-d detector
Q2: Complete preliminary network requirements document
Q3: Complete preliminary design of PPS mechanical system
Q4: Complete preliminary design of PPS controls
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC

17. Summary
Experimental program construction will be managed and coordinated by SSRL. Provides control over cost and schedule
Cost effective design and procurement
Natural evolution to SSRL operations
Endstation systems: WBS 1.3.2
Provides needed infrastructure for the experimental program
Addresses generic needs
Detector development
Laser for pump probe studies
LCLS DOE Review, April 23, 2002
J. Hastings, SLAC