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Title: X-ray Absorption Spectroscopy Beamline at the Siam Photon Laboratory

Abstract

A bending magnet beamline has been constructed and commissioned for x-ray absorption spectroscopy (XAS) at the Siam Photon Laboratory. The photon energy is tunable from 1830 eV to 8000 eV using a Lemmonier-type, fixed-exit double crystal monochromator equipped with InSb(111), Si(111), Ge(220) crystals. Elemental K-edges are then accessible from silicon to iron. A series of low conductance vacuum tubes has been designed and installed between the pumping chambers in the front end to obtain the proper pressure difference between the upstream and the downstream of the front end. Thus lower-energy photons, around K-edges of silicon, phosphorous, and sulfur, can be delivered to the experimental XAS station without being absorbed by a window. In this report, the design of the beamline is described. The commissioning results including the measured photon flux at sample and experimental XAS spectra are presented.

Authors:
; ; ; ;  [1];  [1];  [2]
  1. National Synchrotron Research Center, 111 University Ave., Muang District, Nakhon Ratchasima 30000 (Thailand)
  2. (Thailand)
Publication Date:
OSTI Identifier:
21052654
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 879; Journal Issue: 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2436196; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ABSORPTION SPECTROSCOPY; BEAM BENDING MAGNETS; BEAM PRODUCTION; COMMISSIONING; CRYSTALS; DESIGN; EV RANGE; INDIUM ANTIMONIDES; IRON; MONOCHROMATORS; PHOTON BEAMS; PHOTONS; SILICON; THAILAND; X-RAY SPECTRA; X-RAY SPECTROSCOPY

Citation Formats

Klysubun, Wantana, Tarawarakarn, Pongjakr, Sombunchoo, Panidtha, Klinkhieo, Supat, Chaiprapa, Jitrin, Songsiriritthigul, Prayoon, and School of Physics, Suranaree University of Technology, Nakhon Ratchasima 30000. X-ray Absorption Spectroscopy Beamline at the Siam Photon Laboratory. United States: N. p., 2007. Web. doi:10.1063/1.2436196.
Klysubun, Wantana, Tarawarakarn, Pongjakr, Sombunchoo, Panidtha, Klinkhieo, Supat, Chaiprapa, Jitrin, Songsiriritthigul, Prayoon, & School of Physics, Suranaree University of Technology, Nakhon Ratchasima 30000. X-ray Absorption Spectroscopy Beamline at the Siam Photon Laboratory. United States. doi:10.1063/1.2436196.
Klysubun, Wantana, Tarawarakarn, Pongjakr, Sombunchoo, Panidtha, Klinkhieo, Supat, Chaiprapa, Jitrin, Songsiriritthigul, Prayoon, and School of Physics, Suranaree University of Technology, Nakhon Ratchasima 30000. Fri . "X-ray Absorption Spectroscopy Beamline at the Siam Photon Laboratory". United States. doi:10.1063/1.2436196.
@article{osti_21052654,
title = {X-ray Absorption Spectroscopy Beamline at the Siam Photon Laboratory},
author = {Klysubun, Wantana and Tarawarakarn, Pongjakr and Sombunchoo, Panidtha and Klinkhieo, Supat and Chaiprapa, Jitrin and Songsiriritthigul, Prayoon and School of Physics, Suranaree University of Technology, Nakhon Ratchasima 30000},
abstractNote = {A bending magnet beamline has been constructed and commissioned for x-ray absorption spectroscopy (XAS) at the Siam Photon Laboratory. The photon energy is tunable from 1830 eV to 8000 eV using a Lemmonier-type, fixed-exit double crystal monochromator equipped with InSb(111), Si(111), Ge(220) crystals. Elemental K-edges are then accessible from silicon to iron. A series of low conductance vacuum tubes has been designed and installed between the pumping chambers in the front end to obtain the proper pressure difference between the upstream and the downstream of the front end. Thus lower-energy photons, around K-edges of silicon, phosphorous, and sulfur, can be delivered to the experimental XAS station without being absorbed by a window. In this report, the design of the beamline is described. The commissioning results including the measured photon flux at sample and experimental XAS spectra are presented.},
doi = {10.1063/1.2436196},
journal = {AIP Conference Proceedings},
number = 1,
volume = 879,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}