Transcript Photon Systems Overview

Photon Systems Overview
John Arthur
SLAC
October 27, 2005
Photon overview
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John Arthur
[email protected]
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 Systems
managed by SLAC (Bill White)
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John Arthur
[email protected]
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
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John Arthur
[email protected]
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.
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John Arthur
[email protected]
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.
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John Arthur
[email protected]
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.
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John Arthur
[email protected]
LCLS Designs are maturing
XTOD instrumentation at concept review stage
Conventional facilities at Title 2 stage
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John Arthur
[email protected]
FEE
7 ft Fe
4 ft Fe
3 ft concrete
Mirrors
STOP
GAS ATTEN
SOLID ATTEN
COLLIM
STOP
32 m
Extra length added to accommodate x-ray offset mirrors
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John Arthur
[email protected]
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
October 27, 2005
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John Arthur
[email protected]
LCLS CF costs are expected to be high
May need to cut some scope
Need to prioritize possible cuts
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John Arthur
[email protected]
Possible Scope Reductions
Eliminate flipper mirrors (~$1M)
Reduce length of x-ray transport tunnel by 10%
(20m, ~$0.5M)
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John Arthur
[email protected]
NEH
Hutch 1
9.5x10m
Hutch 3
Hutch 2
Flipper Mirrors
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John Arthur
[email protected]
Reduced scope FEH design
Entrance
tunnel
hutch extended
single beamline
46ft tunnel
Hutch 4
Hutch 5
Hutch 6
19ft tunnel
212ft
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John Arthur
[email protected]
Effects of reductions
No flipper mirrors: beamline shared in FEH
Shorter tunnel: side beams closer to each other by 10%
(1.8m vs 2m)
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John Arthur
[email protected]
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
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John Arthur
[email protected]
NEH
Atomic physics, other
soft x-ray science, and
diagnostics
X-ray
pumpprobe
Flipper Mirrors
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John Arthur
[email protected]
FEH
XPCS
Coherent
x-ray
imaging
High
energy
density
science
(FUTURE)
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John Arthur
[email protected]
Summary
Major staff increase ongoing
Experimental needs coming into focus
XTOD design well along, XES starting
Need to consider possible scope cuts to save $
October 27, 2005
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John Arthur
[email protected]