X-ray Pump-Probe
(WBS 1.2)
David Fritz
System Specifications
System Description
WBS
Early Science
Schedule and Costs
Summary
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
1
David Fritz
[email protected]
Science Team
Specifications and instrument concept developed
with the science team.
The XPP team leaders
Kelly Gaffney, Photon Science, SLAC (leader)
Jorgen Larsson, Lund Institute of Technology, Sweden
David Reis, University of Michigan
Thomas Tschentscher, DESY, Germany
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
X-ray Pump-Probe Science
photoexcitation
Stampfli and Bennemann Phys. Rev. B 49, 7299 (1994)
Phase Transitions
Order / Disorder
Metal/Insulator
Phonon Dynamics
Charge Transfer Reactions
Photosynthesis
Photovoltaics
Vision
Photoactive Proteins
photoexcitation
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David Fritz
[email protected]
Time Resolved Scattering
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David Fritz
[email protected]
Ultrafast Hard X-ray Sources to Date
3rd Generation Synchrotrons (APS)
~ 1 x 10 9 photons/second coincident with a 1 kHz Laser
100 ps pulse duration
Slicing Source
~ 1 x 10 6 photons/second coincident with a 1 kHz Laser
100 fs pulse duration
Laser Plasma Source
~ 1 x 10 5 photons/second collected at 10 Hz
300 fs pulse duration
Sub-Picosecond Pulse Source
~ 1 x 10 7 photons/second coincident with a 10 Hz Laser
100 fs pulse duration
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XPP (WBS 1.2)
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David Fritz
[email protected]
Ultrafast X-ray Science to Date
Non-thermal Melting of Semiconductors
Large Amplitude Coherent Phonons
Single Shot at SPPS
20 minute acquisition at SPPS
Limited to slow processes ( > 100 ps)
or
X-ray diffraction from single crystals
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
XPP SCOPE - WBS 1.2
Scope/CD-1 Estimate Includes:
Physics support & engineering integration
X-ray optics – monochromator, focusing optics, slit systems, attenuators
Ultrafast laser system
Detectors - 2D detector from BNL by MOU, Emission Spectrometer
Sample environments - diffractometer system, thermal environments, vacuum
environment
Laboratory facilities
Vacuum system
Installation
Diagnostics (WBS 1.5)
Controls and data system (WBS 1.6)
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
System Specifications
Item
Purpose
Narrow x-ray spectrum,
Monochromator
multiplex LCLS Beam
Specification
600 mm horizontal offset,
9°-50° scattering range,
0.02 arcsec angular res. and repeat.
Focusing optics
Reduces beam size,
maximize on sample flux
10 - 60 µm variable spot size
Laser system
Photoexcitation of
samples
< 50 fs, 20 mJ/Pulse, 800 nm,
wavelength tunable,
temporal pulse shaping capable
X-ray
diffractometer
Sample orientation,
Positioning of detector
Orientation in all degrees of freedom
Detector positioning acc. and
res. < 90 µm
Operation in direct and mono. beam
Detector
Measure of diffraction
patterns
2D,1024 x 1024 pixels, 9090 µm pixel
size, 120 Hz, 10 4 dynamic range,
variable gain
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XPP (WBS 1.2)
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David Fritz
[email protected]
Laser System
(Fundamental)
Small Angle
Scattering
X-ray
Diffractometer
& BNL Detector
Wavelength
Conversion
X-ray Optics
and Diagnostics
Offset
Monochromator
X-ray Pump-Probe Instrument
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
XPP System Description
1.2.1 Physics support and engineering integration
1.2.2 X-ray optics
1.2.3 Laser system
1.2.4 Detector
1.2.5 Sample environments
1.2.6 Laboratory facilities
1.2.7 Vacuum system
1.2.8 Installation
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
X-ray Pump-Probe System Description (2)
Parameter
Value
Energy Range
6 – 24 keV
Horizontal Offset
600 mm
Scattering Angle
90 - 500
 Accuracy
0.02 arcsec
χ Accuracy
4 arcsec
1.2.2 X-ray optics
Monochromator
Thin crystals
Be lens
Slits
Attenuators
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
X-ray Pump-Probe System Description (3)
1.2.3 Femtosecond laser system (similar to LCLS gun laser)
Ti:Sapphire based system
Up to 20 mJ/pulse (<1.5 % rms stability) , < 50 fs, 800 nm, 120 Hz
Synchronized to LCLS RF ( <300 fs rms integrated jitter)
Wavelength tunable
Harmonic generation (400 nm, 266 nm)
Parametric amplification (240 nm – 11,000 nm)
Temporal pulse shaper
Diagnostics
Energy, wavelength, temporal profile, contrast, spatial profile
1.2.4 Detectors
2D Detector (BNL)
1024 x 1024 pixels
90 micron pixel size
10 4 dynamic range
120 Hz readout rate
X-ray Emission Spectrometer
100 eV dynamic range
1 eV resolution
High collection efficiency
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
X-ray Pump-Probe System Description (4)
1.2.5 Sample environments
X-ray diffractometer
Operate in both direct and monochromatic beam
Detector motion about a spherical surface centered at sample
Cryostat
X-ray and optical window (collinear and non-collinear geometry)
Decoupled sample motion from vacuum shroud
Cryostream
Liquid jet
Vacuum chamber
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
13
David Fritz
[email protected]
X-ray Pump-Probe System Description (5)
1.2.6 Laboratory facilities
1.2.7 Vacuum system
1.2.8 Installation
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
1.2 WBS
1.2
X-ray Pump-Probe
1.2.1
Physics Support
Eng. Integration
1.2.2
X-ray Optics
1.2.3
Laser System
1.2.4
Detector System
1.2.5
Sample
Environments
1.2.6
Lab Facilities
1.2.8
Installation
1.2.7
Vacuum
1.2.2.1
Monochromator
1.2.3.1
Oscillator
1.2.3.2
Amplifier
1.2.4.1
2D Detector
1.2.5.1
Diffractometer
1.2.6.1
Electrical
1.2.7.1
Vacuum
Hardware
1.2.8.1
Non-recurring
Engineering
1.2.2.2
Be Lenses
1.2.3.3
Pulse Shaper
1.2.3.4
Optics &
Optomechanics
1.2.4.2
Emission
Spectrometer
1.2.5.2
Cryostat Systems
1.2.6.2
Control Room
Furniture
1.2.7.2
Bellows
1.2.8.2
Installation LCLS
CD-4a
1.2.3.5
Vacuum Transport
1.2.3.6
Laser Diagnostics
1.2.5.3
Liquid Jet
1.2.6.3
Hutch Furniture
1.2.7.3
Spools
1.2.2.4
Attenuators
Filters
1.2.3.7
Hutch
Optical Tables
1.2.3.8
Laser Timing
1.2.5.4
Vacuum
Chamber
1.2.6.4
Radiation Physics
1.2.7.4
Vacuum
Supports
1.2.2.5
Collimator
1.2.3.9
Optical Exp.
Hardware
1.2.3.10
Laser Containment
1.2.3.11
Optical Parametric
Amplifier
1.2.3.12
Laser Lab
Optical Tables
1.2.2.3
Slit System
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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1.2.8.3
Installation LCLS
CD-4b
1.2.8.4
Complete
\Installation LUSI
CD-4
David Fritz
[email protected]
CD 4a XPP Instrumentation
LCLS AMO Laser
X-ray Optics
and Diagnostics
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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X-ray
Diffractometer
Detector
David Fritz
[email protected]
CD 4a XPP Science
Early experimental techniques
Time-resolved diffraction
Time-resolved diffuse scattering
~ 100 fs temporal resolution
Non-thermal melting and large amplitude coherent phonons
Natural extension to research performed at SPPS
Characterize source and instrument capabilities
Interaction of FEL with solid state matter as soon as LCLS
reaches saturation
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
17
David Fritz
[email protected]
XPP Schedule in Primavera 3.1
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
XPP Milestones
CD-1
Aug 01, 07
Conceptual Design Complete
Sep 21, 07
CD-2a
Dec 03, 07
CD-3a
Jul 21, 08
Phase I Final Design Complete
Oct 15, 08
Receive Diffractometer
Feb 19, 09
Receive Focusing Lenses
Feb 27, 09
Receive Laser Optics and DiagnosticsMar 18, 09
Phase I Installation Complete
Oct 01, 09
Install BNL XPP Detector
Nov 03, 09
CD-4a
Feb 08, 10
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
19
David Fritz
[email protected]
XPP Cost Estimate
Direct Cost
PED
MS&T
ASSY
Indirect Cost
Escalation
Total Cost
$7,916.9
$1,500.0
$5,656.9
$760.0
$1,390.0
$760.0
$10,066.9
Associated Contingency 30.3%
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
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David Fritz
[email protected]
Summary
Instrument concept is advanced
100% of Letters of Intent are represented in instrument
concept
Standing monthly meeting with XPP team
Instrument concept is based on proven developments
made at SPPS and SR sources
Initial specifications well developed
Ready to proceed with baseline cost and schedule
development
LUSI DOE Review July 23, 2007
XPP (WBS 1.2)
21
David Fritz
[email protected]