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BL-9A : XAFS (High-Intensity) Experiments

Overview

Beamline group Group 3 (X-ray Spectroscopy)
Techniques
  • XAFS (X-ray Absorption Spectroscopy)
  • Other experiment with monochromatized X-ray
Features
  • An experimental station has been designed for hard X-ray XAFS experiments.
  • High intensity and low energy X-ray (> 2.1 keV) is available.
Area of research
  • Materials Chemistry
  • Materials Engineering
  • Earth and Environmental Science
  • Biological Science etc.
Contacts
  • Manager：Hitoshi ABE hitoshi.abe(at)kek.jp
  • Sub manager：Hiroaki NITANI hiroaki.nitani(at)kek.jp
  • Sub manager：Yasuhiro NIWA yasuhiro.niwa(at)kek.jp
  • Sub manager：Ai MATSUOKA ai.kamijo(at)kek.jp Please change (at) to @ in the e-mail address.
Special notes
  • When you planning any experiment other than XAFS, please contact us before submit your research proposal.
  • You have to submit "experimental plan" before experiment. Please check PFXAFS website.

Performance

Source
  • 2.5 GeV PF Bending magnet (B09)
  • Horizontal acceptance 3 mrad
Optics
  • Cam-drive (Kohzu system), water cooled double Si(111) crystal monochromator, Quick scan available
  • Rh coated bent conical mirror for collimating
  • Rh coated bent conical mirror for focusing
  • Ni coated double flat mirror for higher harmonics reduction*
    *Low energy mode (< 4 keV) only
Energy range
  • 2.1 - 15 keV
Resolution (ΔE/E)
  • ~ 2 x 10-4
Beam size
  • 0.5 mm (H) x 0.3 mm (V)
Photon flux
  • HX mode : 6 x 1011 photons/s（7 keV）
  • SX mode : 6 x 1010 photons/s（2.5 keV）
Instruments
  • Standard XAFS experiment system (Transmission and Fluorescent mode)
  • SX-XAFS experiment system (Conversion electron yield and Fluorescent mode)
  • Quick Scan XAFS measurement system
Detectors
  • Ionization chamber (5 cm, 17 cm, 31 cm)
  • Lytle detector
  • 7-elements SDD
Remote / Mail-in
Special notes
  • Users instruments : acceptable (Please contact with the beamline manager.)
  • Experimental hutch : 2.6 m (L) x 2.8 m (W) x 2.5 m (H)
  • Hutch door : 1.88 m (W) x 2.39 m (H)
  • Optical table : 1500 mm (L) x 1000 mm (W)
  • Electric power, high-pressure gas available
  • Standard setup: Room temperature and Ambient pressure for HX mode, room temperature and He atmosphere for SX mode.
  • Cryo-cooler with temperature control is available (300 – 20K under vacuum)

More information

References

  1. M. Nomura and K. Koyama J. Synchrotron Rad., 6, 182 (1999), doi:10.1107/S0909049598016823
  2. M. Nomura and K. Koyama Nucl. Instrum. Meth., A 467-468, 733 (2001), doi:10.1016/S0168-9002(01)00482-X

Publications

KEK-PF Publication Database (Publications of BL-9A)

Last updated: 2021-8-24

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