LUSI Xray Correlation Spectroscopy Instrument Advanced Procurement Review : Diffractometer Large Ang

1
LUSIX-ray Correlation Spectroscopy
InstrumentAdvanced Procurement Review
DiffractometerLarge Angle Detector MoverLarge
Offset Monochromator

• Aymeric ROBERT XCS Instrument Scientist
• Eric BONG XCS Lead Engineer
• April, 2009

2
Outline

• Purpose of the Review
• XCS Instrument Overview
• Long-lead Items for XCS
• Diffractometer System
• Large Angle Detector Mover
• Large Offset Monochromator

• Experimental Requirements
• Engineering Specifications
• Safety
• Acquisition Plan
• Discussions Status with vendors
• Timeline
• Vendor Selection Criteria

3
Purpose of the Review

• This review is NOT a Design Review
• This review seeks approval of the specifications,
  the procurement process and the potential vendors
  for the 3 long-lead items of the X-ray
  Correlation Spectroscopy Instrument
• We require advanced procurement approval since
  the LUSI project has not reached CD-3 yet
• DOE wishes to review all our procurement
  specifications
• Make sure we effectively use funding
• This review must occur before we can submit the
  paperwork to go out for bids
• We are planning a design-build contract with an
  outside vendor for the 3 items
• We are NOT doing the design ourselves

4
XCS Instrument Overview
Coherent Scattering (Speckles)
Coherent X-rays

• Speckles scattering patterns produced by the
  coherent illumination of the sample
• XPCS observation of the time-fluctuation of
  speckle patterns
• Characterization of the underlying dynamics of
  the system
• XPCS is independent of the scattering geometry
  (SAXS, Diff., GI-SAXS, Refl.,)
• XPCS probes dynamical phenomena

5
XPCS / Coherent Scattering at XFELs
6
Ultrafast XPCS with a Split and Delay Unit
Detector
7
Ultrafast XCS Split Delay
Change in Contrast !
?t
8
Ultrafast XCS Split Delay

• Peak Brilliance Pulse Duration
• Pulse duration lt tClt several ns
• Large Qs accessible

Development of Split and Delay technology is
crucial to success in Ultrafast dynamics with
XFELs
9
XPCS capabilities on XFELs
LCLS
Ultra Fast Mode
Sequential Mode
LCLS Beam Parameters
Full Transverse Coherence
High Timeaverage Brilliance Rep. Rate 120 Hz
High Peak Brilliance Short pulse duration 200fs
8 and 24 keV
10
X-ray Correlation Spectroscopy Science

• Ultra dilute systems ( gazes , aerosol, fogs,
  fumes)
• Ionic liquids and Transport theories
• Nano-systems (nanoscale sub ns dynamics)
• Biological samples dynamics (in their native
  state)
• Dynamics of hard materials ( phonons, low-E
  excitations, )
• Hard condensed matter phase transitions

H2O -10 C / 1 bar Q 2nm-1
t 5 3 ps
11
XCS Instrument Location
Near Experimental Hall
X-ray Transport Tunnel (200m long)
XCS
Source to Sample distance 420 m
Far Experimental Hall
12
Far Experimental Hall
Material Extreme Conditions
Coherent X-ray Imaging
X-ray Correlation Spectroscopy
13
XCS Instrument Goals/Requirements

• Goals
• Time-resolved observation of coherent diffraction
  patterns using LCLS coherent hard x-rays
  (6-25keV)
• Tailor and characterize X-ray beam parameters
• Spatial Profile
• Intensity
• Repetition rate
• Spectral Bandwidth
• X-ray Photon Correlation Spectroscopy
  Requirements
• Versatility of the instrumentation (SAXS,WAXS,
  GI)
• Coherence Preservation of X-ray optics
• Detector with small pixel size / Large
  sample-detector distance
• Key Performance Parameters
• 4-20 keV energy range
• Using the fundamental and third harmonic
• 0.1-0.01 energy resolution

14
XCS Instrument Overview
Photon Shutter
Primary Slits
Diagnostics
Monochromators
Transport Tunnel
Secondary Slits
Diagnostics
Split and Delay
Secondary Slits
Diagnostics
Focusing Lenses
Photon Shutter
Attenuators
Pulse Picker
Harm. Rej. Mirrors
Defining Slits
FEH Hutch 4
Diagnostics
Diffractometer
Large Angle Detector Stage
15
XCS Instrument Overview
Hutch 4
Vestibule
Hutch 4 Optics, Diffractometer Large Angle
detector Mover
Split and Delay Area
X-ray Transport Tunnel
Post-Monochromator
Large Offset Monochromator
16
XCS Inst. Overview Detector

• 2D Pixel Array Detector
• Developed at BNL (MoU)
• 1024 x 1024 pixels
• 35 x 35 mm2 pixel size
• High DQE
• 10 2 dynamic range
• Noise ltlt 1 photon
• 120 Hz Readout Rate

We are in the process of revisiting the pixel size
17
XCS Instrument Overview
600 mm
2x 2 mm
3 mm
30 mm
1400 mm
( Floor )
18
XCS Diffractometer System
Transport Tunnel
The sample position and angular orientation must
be manipulated in a precise and reproducible
fashion. For some XPCS-experiments the sample
will be confined in a particular environment
(vacuum, cryostat system, pressure cell, liquid
jet, etc). The local detector aids to the
alignment of the sample/sample environment in the
x-ray beam. In all cases the diffractometer has
to guarantee a stable and reproducible position
and angular orientation of both the sample and
local detector. The XCS diffractometer is a
4-circle horizontal scattering geometry
diffractometer
FEH Hutch 4
19
XCS Diffractometer Acquisition

• Multiple vendors expressed interest in
  design/build

20
XCS Diffractometer Safety

• Safety
• Preliminary concept
• Sense the X-ray PPS state of the hutch and use
  that to permit diffractometer power (speed)
• Set motors to run at low velocities and
  acceleration (software)
• Set low current trip threshold of motors
  (software)
• Brakes on all axis
• Installation
• Need to coordinate with vendor regarding the
  hazards associated with diffractometer
  installation, initial turn on and rigging
• Also coordinate with vendor on installation of
  granite floor insert regarding rigging and
  construction safety
• Seismic
• The entire system will be reviewed and approved
  by SLAC for seismic safety
• Electrical
• NRTL, SLAC Inspection and approval

21
XCS Diffractometer System
Diffractometer Location in the XCS Experimental
Hutch
Transport Tunnel
FEH Hutch 4
22
XCS Diffractometer System
Conceptual Design of the XCS Diffractometer System
Transport Tunnel
FEH Hutch 4
23
XCS Diffractometer System
Transport Tunnel

• Movable Diffractometer Base
• Possibility to completely remove diffractometer
  from IPs
• Solid Granite Base, airpad motion, floor insert
• Access 3 positions (IP1, IP2, Park)
• Guiding rail on the side
• back at orig. position with repeatability
  0.5mm

FEH Hutch 4
24
XCS Diffractometer System
Transport Tunnel

• Alignment of the axis of rotations with beam XX
• Fine correction provided by Horiz. Trans XX
• 40mm Repeatability 1 µm

FEH Hutch 4
25
XCS Diffractometer System
Transport Tunnel

• Local Detector Aid sample alignment 2?,?,R,
  Yd
• 2? 160 Resolution lt 1 arcsec
• ? 5 Resolution lt 1 arcsec
• R manual radius change 200mm range
• Yd vertical adj. rangegt200mm with repeatability
  1µm
• Local detector maximum weight 10kg (e.g. diode
  slits)

FEH Hutch 4
26
XCS Diffractometer System
Transport Tunnel

• Sample Precise Rotation 2?
• 360 range of motion
• Repeatability lt 1 arcsec
• Stability 6 arcsec/hr

FEH Hutch 4
27
XCS Diffractometer System
Transport Tunnel

• Central Elevator YY
• To position vertically the CoR of the
  diffractometer in the beam
• Range 50/-100mm
• Repeatability lt 2 µm
• super compact included in the rotations

FEH Hutch 4
28
XCS Diffractometer System
Transport Tunnel

• Sample Tilts ?,f
• Crystallographic tilts for the sample
• Range 5
• Repeatability better than 3 arcsec
• Stability 6 arcsec/hr

FEH Hutch 4
29
XCS Diffractometer System
Transport Tunnel

• Sample Translation X,Z,Y
• Precise position of the sample in the center of
  rotation
• Range gt 10mm
• Repeatability better than 1µm
• Stability better than 1µm/hr
• gt250 x250mm top surface

FEH Hutch 4
30
XCS Diffractometer System
Transport Tunnel

• Additional Requirements
• Maximum load 50kg
• Sphere of confusion 70µm
• Distance top platform to Tilts CoR gt200mm
• Operation in both the CXI and XCS beamline

FEH Hutch 4
31
XCS Diffractometer System
Transport Tunnel
FEH Hutch 4
32
XCS Diffractometer SystemEngineering
Specifications
33
Acquisition Strategy

• The complete XCS Diffractometer System will be
  procured as a design/build contract.
• Identical procedure to the XPP Sample Goniometer
• To sole or not to sole source
• Current plan is to go out for bid
• However, similar purchases at the lab have been
  sole sourced

34
Status of Discussions with Vendors

• Vendor Discussions
• Huber (via Blake Industries)
• Sent the PRD design study to Huber for a
  preliminary quote for budget planning
• Received quotation - 517k
• Very positive discussions
• Kohzu
• Discussed the system in person with Chief R D
  Engineer
• Will not bid on the system
• Aerotech
• Discussed the system in person with applications
  engineer
• Interested in bidding on system
• No discussions with other possible vendors
• ADC do not expect to compete since they
  purchase most goniometer components from Huber

35
XCS Diffractometer SystemProcurement
Specification
36
XCS Diffractometer Schedule

• Possible advanced schedule
• Must re-baseline P3 schedule to validate advanced
  schedule

37
XCS Diffractometer System

• Vendor Selection Criteria identical to XPP
  procurements