X Ray Transport, Optics, and Diagnostics, Overview

1
X Ray Transport, Optics, and Diagnostics,
Overview

• LCLS Lehman Review
• May 10, 2005

2
Outline

• XTOD Scope Organization
• XTOD Status and Technical Highlights
• XTOD FY05 Work plan

3
XTOD Transports Photons from e- Dump to FEH
Electron Dump
Near Experimental Hall
Linac
Far Experimental Hall
Undulator Hall
Electron Transport
Front End Enclosure
X-Ray Tunnel
4
1.5 Scope Front End Enclosure/ Near Experimental
Hall
NEH
PPS
PPS
Muon shield
Flipper Mirror
Front End Enclosure
PPS
Commissioning Spectrometers, Total Energy
Solid Attenuator
Slit A
NFOV Direct Imager Indirect Imager
Slit B
Photon Beam
WFOV Direct Imager
Gas Attenuator
Muon shield
Fast close valve
Location of proposed FEL Offset Mirror
Other Direct Imager Fixed masks
Electron Beam
Electron Dump
5
FEH
1.5 Scope NEH, Tunnel, FEH
Pulse Split and Delay
X-Ray Beam Transport
Tunnel
System Monochrometer
Far Hall Direct Imager and Tank
NEH
Flipper Mirror
6
XTOD Spending Plan
7
X-Ray Transport Critical Path Runs through Gas
Attenuator
8
XTOD Staff-up complete for FY05
R. Bionta LLNL LCLS Project Leader D.
McMahon XTOD Project Engineer
J. McNamara Admin.
Rodney Victorine Resource Manager Jolyn
Scholes Resource Analyst
M. Eberstein G. Otani Procurement
R. Beale Hazards Control
EE E. Ables
ME P. Duffy M. Mckernan S. Shen J. Trent
Comp K. Fong S. Lewis L. Ott
Physics S. Friedrich S. Hau-Reige M.
Pivovaroff D. Ryutov
DNT R. London
UC Davis H. Baldis
Remainder of FY05 P3 labor "loosely" matrixed,
i.e L. Li - thermal analysis, Bajt, multilayers,
shops, finance
9
Risk registry documents risks

• Attenuator Performance
• Cross check with total E and Indirect Imager
• Backgrounds and access
• Initially locate sensitive cameras,
  spectrometers, .. In NEH
• Limiting Apertures
• Locate a WFOV DI in FEE. Allow 10 cm beam in FEE.
• Beam parameters and high flux physics
  uncertainties
• Add redundancy and flexibility. Have codes ready.
  Measure simple things first ie spontaneous levels
• Design Immaturity
• Design Front-end first
• Late changes
• Stick to P3

10
Wide Field of View Direct Imager Conceptual Design
Photoelectrons
Optic
Camera
Scintillators
11
Indirect Imager Simulation Begun
1 m
Spontaneous e FEL
2.90068 degrees
101 mm
Be/SiC 300 layer pairs 60 Angstrom period Gamma
0.2 On 0.5 mm thick Si 10 cm diameter 5
efficient _at_ 8keV
0.1 FEL with Egt2 keV
12
Total Energy Calorimeter Concept
Energy Absorbed in 500um Silicon (0.01
FELSpontaneous)
Cooler
CMR Sensor
Xray Beam
Sapphire heat sink
Si or Be 1x1x.5 mm
SINDA T vs. t
Direction of heat flow
CMR W vs T
Electrothermal Feedback
Apply constant V Measure I Calculate P
Cool Down Time is about 0.6 ms
13
Lehman XTOD Recommendations (2004)

• Undertake a set of experiments to test the
  simulation codes against experimental data. This
  reviewer speculates that opportunities for
  experiments may exist at the DESY FEL , the
  Z-pinch Source, and the National Short Pulse
  Laser Facility. Tests of the codes at
  wavelengths longer than 1.5 nm should still be
  useful since it appears likely that the physical
  processes that should be simulated will still
  be important. These experiments should be done
  before the procurement of the major optics like
  the flipper mirror. A suggested schedule is to
  make the plans in calendar year 2004 and conduct
  experiments in 2005

14
TTF Damage experiment set to test models at 40 eV
in Oct. 2005
Sample cassette
In collaboration with Jacek Krzywinski, Libor
Juha, and others from the Polish Academy of
Science, the Czeck Academy of Science, and DESY,
Hamburg.
15
XTOD Major Instrumentation Status
16
FY05 Tasking and Personnel Assignments
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XTOD work flow will follow ISMS practices for
each WBS element
WBS Dictionary
LCLS Physics Requirements
ICDs
IWS (Integrated Work Sheet) is LLNL wide e-form
for documenting ISMS for each work
package Scope Hazards Controls Roles (RI)
Responsibilities Training Signoff
Hardware Installation Operations Servicing
ERDs
Eng. Safety Notes
Designs
Certified Parts Lists
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IWSs for LCLS XTOD Prototypes and WBS Elements

• Short term IWS
• Cover Prototype development and testing, offsite
  and on-site
• Gas Attenuator prototype in B132 (in progress)
• Direct Imager B272, SSRL
• X-Ray Box tests
• Drive Laser RD, B480
• Add SLAC personnel to IWS training

• Long Term IWS
• Cover Each WBS deliverable
• Fabrication Assembly
• Bench testing
• Transport to SLAC
• Installation
• Commissioning
• Operation
• Servicing

19
FY05 Goals

• Mechanical and Vacuum
• Cost estimate and Engineering Plan through NEH
• IWS's, ICD's, and ERD's
• Detailed plans / parts for prototype
• Gas Attenuator, Control system tests, concepts
  for monitoring beam and attenuation
• Total Energy, 1 pixel
• Direct Imager, for 826 eV tests at SSRL
• Monte-Carlo simulations of FEE instruments and
  alignment
• Document in ERDs
• Apertures, Expected light levels, Reflectivity,

20
FY05 Goals (cont.)

• Conceptual designs and sample optics for
• Indirect Imager
• Spectrometer
• Controls
• Cost estimate and Engineering Plan
• Prototype Controls
• Gas Attenuator
• Direct Imager
• TTF Damage Experiment
• Samples Fabricated and Documented
• FEL Offset Mirror
• Determine specifications, cost, and schedule
• Rearrange/Reformulate Commissioning plan and
  layout to accommodate Mirror system.

21
XTOD Overview Summary

• FY05 staffing plan implemented
• FY05 work plan begun
• Near term emphasis on Commissioning and FEE
• Some aspects of the plan will change following
  the addition of the FEL Offset Mirror System