Experimental Program and Endstations System (WBS 1.3.2) J. Hastings, SLAC April 23, 2002

1. Experimental Program and Endstations System (WBS 1.3.2)J. Hastings, SLACApril 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 J. Hastings, SLAC

2. Experimental program • Science case • Optical system requirements • SSRL: A model for construction and operations for LCLS • Schedule 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 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 10-3 - 10-5 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 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 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 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. J. Hastings, SLAC

8. Endstation Systems Description • Safety Systems • Absorbers-stoppers • PPS/MPS • Data Acquisition • Controls • Detectors • Beam containment • Vacuum chambers • Laser J. Hastings, SLAC

9. Safety • Stopper systems • Beam absorbers • 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 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 J. Hastings, SLAC

11. Data Acquisition • Controls • 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 J. Hastings, SLAC

12. Beam containment • Vacuum chambers • 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 J. Hastings, SLAC

13. 1.3.2 WBS to level 5 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 J. Hastings, SLAC

15. 1.3.2 X-Ray End Station Systems (FY02 Dollars, Thousands) 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 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 J. Hastings, SLAC