Ultrahigh resolution soft x-ray emission spectrometer at BL07LSU in SPring-8

Journal Article · Sun Jan 15 00:00:00 EST 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3680559· OSTI ID:22063763

Harada, Yoshihisa ^[1]; Kobayashi, Masaki ^[1]; Niwa, Hideharu ^[1]; Senba, Yasunori; Ohashi, Haruhiko ^[2]; Tokushima, Takashi; Horikawa, Yuka ^[3]; Shin, Shik ^[3]; Oshima, Masaharu ^[1]

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1. Department of Applied Chemistry, Graduate School of Engineering, University of Tokyo, Hongo, Bunkyo, Tokyo 113-8656 (Japan)
2. Japan Synchrotron Radiation Research Institute (JASRI), Koto, Sayo-cho, Sayo, Hyogo 679-5198 (Japan)
3. RIKEN/SPring-8, Sayo-cho, Sayo, Hyogo 679-5148 (Japan)

An extremely high resolution flat field type slit less soft x-ray emission spectrometer has been designed and constructed for the long undulator beamline BL07LSU in SPring-8. By optimizing the ruling parameters of two cylindrical gratings, a high energy resolution {Delta}E < 100 meV and/or an E/{Delta}E{approx} 10 000 are expected for the energy range of 350 eV - 750 eV taking into account the broadening by the spatial resolution (25 {mu}m) of a CCD detector. A coma-free operation mode proposed by Strocov et al., is also applied to eliminate both defocus and coma aberrations. The spectrometer demonstrated experimentally that E/{Delta}E= 10 050 and 8046 for N 1s (402.1 eV) and Mn 2p (641.8 eV) edges, respectively.

• OSTI ID: 22063763
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 1; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
43 PARTICLE ACCELERATORS
CHARGE-COUPLED DEVICES
DIFFRACTION GRATINGS
EMISSION SPECTROSCOPY
ENERGY RESOLUTION
EV RANGE 100-1000
MEV RANGE
SOFT X RADIATION
SPATIAL RESOLUTION
SPRING-8 STORAGE RING
WIGGLER MAGNETS
X-RAY SPECTROMETERS