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John Arthur
Photon overview [email protected]
October 27, 20051
Photon Systems OverviewJohn Arthur
SLAC
John Arthur
Photon overview [email protected]
October 27, 20052
Photon Systems
Includes LCLS x-ray and laser groups
X-ray Transport, Optics and Diagnostics (XTOD)managed by LLNL (Richard Bionta)
X-ray Endstation Systems (XES)managed by SLAC (Stefan Moeller)
Laser Systemsmanaged by SLAC (Bill White)
John Arthur
Photon overview [email protected]
October 27, 20053
XTOD Scope
Transport the x-ray beam, in vacuum, to all the experimental stations
Condition the x-ray beam, with attenuators and apertures
Analyze the x-ray beam, with sophisticated diagnostics
John Arthur
Photon overview [email protected]
October 27, 20054
XES Scope
The X-Ray Endstation Systems group provides the infrastructure required for experimenters to make best scientific use of the LCLS radiation safely. Includes advanced x-ray detector R&D.
John Arthur
Photon overview [email protected]
October 27, 20055
Laser Group Scope
The Laser group coordinates laser design and acquisition throughout the LCLS. Lasers will be used in the electron gun and x-ray experimental areas, and also possibly for accelerator diagnostics and alignment.
John Arthur
Photon overview [email protected]
October 27, 20056
LUSI Project Scope
LCLS Ultrafast Science Instruments is a distinct DOE project closely coordinated with LCLS. It will build 4 science instruments which will occupy LCLS x-ray hutches. This will enable work in three of the LCLS Science Thrust Areas: X-ray pump-probe dynamics, Coherent x-ray imaging, and X-ray photon correlation spectroscopy. The project is just starting, with major funding expected in FY2007.
John Arthur
Photon overview [email protected]
October 27, 20057
LCLS Designs are maturing
XTOD instrumentation at concept review stage
Conventional facilities at Title 2 stage
John Arthur
Photon overview [email protected]
October 27, 20058
32 m
GAS ATTENSOLID ATTENSTOP COLLIM
Mirrors
STOP
FEE
7 ft Fe 3 ft concrete 4 ft Fe
Extra length added to accommodate x-ray offset mirrors
John Arthur
Photon overview [email protected]
October 27, 20059
Building up the X-Ray Systems
XTOD group has about 20 people now
XES has 1 person and 2 openings
2 other recent x-ray related hires at LCLS, 1 opening
LUSI has 5 openings now, more soon
John Arthur
Photon overview [email protected]
October 27, 200510
LCLS CF costs are expected to be high
May need to cut some scope
Need to prioritize possible cuts
John Arthur
Photon overview [email protected]
October 27, 200511
Possible Scope Reductions
Eliminate flipper mirrors (~$1M)
Reduce length of x-ray transport tunnel by 10%
(20m, ~$0.5M)
John Arthur
Photon overview [email protected]
October 27, 200512
NEH
Flipper Mirrors
Hutch 19.5x10m
Hutch 2 Hutch 3
John Arthur
Photon overview [email protected]
October 27, 200513
19ft tunnel
46ft tunnel
212ft
Hutch 4 Hutch 5 Hutch 6
Entrance tunnel
Reduced scope FEH design
hutch extended
single beamline
John Arthur
Photon overview [email protected]
October 27, 200514
Effects of reductions
No flipper mirrors: beamline shared in FEH
Shorter tunnel: side beams closer to each other by 10% (1.8m vs 2m)
John Arthur
Photon overview [email protected]
October 27, 200515
LUSI Progress
CD0 signed in August, project is official
Initial hiring taking place
Input from potential users is helping to define instruments
Working closely with XES and XTOD groups to develop an optimal layout for experiments
John Arthur
Photon overview [email protected]
October 27, 200516
NEH
Flipper Mirrors
X-ray pump-probe
Atomic physics, other soft x-ray science, and
diagnostics
John Arthur
Photon overview [email protected]
October 27, 200517
FEH
XPCSCoherent
x-ray imaging
High energy density science
(FUTURE)
John Arthur
Photon overview [email protected]
October 27, 200518
Summary
Major staff increase ongoing
Experimental needs coming into focus
XTOD design well along, XES starting
Need to consider possible scope cuts to save $
