HPCAT

at the Advanced Photon Source

Technical Notes

HPCAT Technical Notes for the Run-cycle 2023-1

NOTE:  Please contact your beamline scientist for the most current information.  

16-ID-D: HP X-ray Spectroscopy
Established HP spectroscopy/scattering techniques at 16-ID-D include:
-Nuclear Resonant Inelastic X-ray Scattering (NRIXS)
-Inelastic X-ray Scattering (IXS) or X-ray Raman Scattering (XRS)
-Resonance/X-ray Emission Spectroscopy(R/XES)

Energy Range

4.5-37 keV

Beam Size and Focusing Optics

4 (V)x 6 (H) μm2with 320mm-400mm long KB mirrors

On-sample Flux

NRS: ~1x109ph/s at 14.4 keV, 2meV DE
Others: ~2x1012ph/s at 10 keV

Detectors

AmpTek
Avalanche Photo Diode (APD) Pilatus-100k

More information may be found at https://hpcat.aps.anl.gov/beamlines

 

16-ID-B: HP Micro-X-ray Diffraction
The station is equipped with two experimental tables:
the laser heating table and the general purpose table

Energy Range

18-50 keV

Beam Size and Focusing Optics

~3x6 um2, 320x320 mm KB mirror assembly
~1x2 um2, 200x100 mm KB mirror assembly

On-sample Flux

~1x1012ph/s at 30 keV (3x5 um2)
~2x1011ph/s at 30 keV (1x2 um2)

Established Techniques
  • Angle-dispersive micro x-ray diffraction (powder
  • and single crystal) with double-sided laser heating,
  • external heating, ambient temperature, and cryogenic cooling in static and time-resolved modes

Detectors

Pilatus 1M-F, MAR CCD (MAR-345, PE and others, by request)

More information may be found at: https://hpcat.aps.anl.gov/beamlines

 

16-BM-D: HP Micro-X-ray Diffraction, Absorption and Tomography

Micro-diffraction: 6-45 keV; 4 um x 4 um focused beam
X-ray absorption: 15-45 keV; XAS-XRD combined measurement is possible.
X-ray Tomography: 20-30 keV, Field of view < 0.5 mm x 0.5 mm, Image resolution: 1.3 – 2.0 µm.
For tomography and XAS, the sample must be loaded with Be gasket; the measurement should in radial transmission geometry.

Energy Range

6-45 keV (normal), up to 60-70 keV (by special request)

Beam Size and Focusing Optics

4 μm x 4 μm FWHM (E@30 keV)
320 mm Pt-coated KB-type mirrors

On-sample Flux

5 x 108 ph/sec @ E = 30 keV, ΔE/E = 1.5 x 10-4 (Si 111 DCM)
3 x 1010 ph/sec @ E = 30 keV, ΔE/E = 1.6 x 10-2 (Ni-B4C DMM)

Established Techniques
  • Micro X-ray Diffraction
  • X-ray Absorption Spectroscopy
  • High-Resolution Powder X-ray Diffraction
  • Single Crystal X-ray Diffraction
  • X-ray Transmission Computed Tomography

Detectors

MAR345 imaging plate (stationary)
MARCCD (special request)
Pilatus 1M-F (special request)
Perkin-Elmer Detector

More information may be found at: https://hpcat.aps.anl.gov/beamlines

 

16-BM-B: White Beam Station
Two experimental setups:
-Energy dispersive x-ray diffraction and radiography with a Paris-Edinburgh (PE) press
-White beam Laue technique with DAC

Energy Range

White beam
For Laue: 7-100 keV for focused beam
For PEC: 20-65 keV for focused beam; 20-120 keV for parallel Beam

Beam Size and Focusing Optics

For Laue: 2.3 µm (H) x 2.3 µm (V) FWHM with 100+200 mm KB mirror
For PEC: 10 µm (H) x 10 µm (V) FWHM with 200+200 mm KB mirror
50 µm x 50 µm to 1.5 mm x 1.5 mm for parallel beam (slit)
Established Techniques - DAC
  • Micro White Beam Laue Diffraction
  • Laue-based Scanning X-ray Diffraction Microscopy

Established Techniques - PE Press
  • Ultrasonic compressional and shear wave velocity measurement
  • Multi-Angle Energy Dispersive X-ray Diffraction
  • Liquid and Amorphous Structure Factor and Pair Distribution Function Measurement
  • High-speed White Beam Radiography (up to 10,000 frames per second)
  • High pressure viscosity measurement using the falling sphere technique (Stokes‘ law)

Detectors

Ge Solid State Detector, PE a-Si detector,
Amptek CdTe Energy dispersive detector (on request)

More information may be found at: https://hpcat.aps.anl.gov/beamlines

HPCAT Supporting Equipment:
- All stations are equipped with on-line ruby systems
- All stations equipped with gear-boxes and single- and double-membrane (diaphragm) control systems for remote pressure controls
- Fast compression and decompression with piezo or diaphragm control devices
- One on-line Raman system available with special request
- One cryostat down to 4K,two cryostats (smaller) down to 10K
- Off-line ruby and Raman systems
- A sample preparation lab for DAC operation

A glove box for loading environment sensitive samples, equipped with micromanipulators
Special loading equipment for handling Be gasket
A laser drill system for gasket hole drills and for micro-machining
A micro-manipulator is available for sample preparation (training required)