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BL08W OUTLINE

問い合わせ番号

INS-0000000347

ABSTRACT

  BL08W is the only wiggler beamline and the highest X-ray energy beamline in SPring-8.
  This beamline is designed for Compton scattering spectroscopy with linearly or elliptically polarized X-rays in the energy ranges of 100 〜 300 keV. The spectroscopy will be widely applied to the studies of Fermiology and magnetism of materials. The beamline serves two experimental stations; magnetic Compton scattering spectrometer using elliptically polarized X-rays which consists in a superconducting magnet and a 10-segmented Ge solid-state detector, high momentum-resolution spectorometer of 0.10 atomic units which consists of a Cauchois-type crystal analyzer and a position sensitive detector.
  The beamline is also available for the studies of high energy Bragg scatterings, high-energy X-ray fluorescence analysis, and nuclear excitations.

AREA OF RESEARCH

  • Magnetic Compton scattering
  • High-resolution Compton scattering
  • High-energy Bragg scattering
  • High-energy fluorescent X-ray analysis

KEYWORDS

  • Scientific field
    Fermiology, Magnetism, Electron momentum density, Elemental analysis
  • Equipment
    Superconducting magnet, Cryocooler, Magnetic Compton spectrometer, Cauchois-type X-ray spectrometer, Multi-elements Ge solid-state detector, X-ray image intensifier camera

SOURCE AND OPTICS

An elliptical multipole wiggler installed on BL08W delivers us linearly or elliptically polarized X-rays. The X-rays emitted from the wiggler are focused and monochromatized by an asymmetric Johann type monochromator (Si 400 / Si 620 / Si 771) or a doubly bent monochromator (Si 400). The parameters on the sample are as follows.

  • Schematic View of Beamline

  • X-rays at Sample
    Station-A

    Energy range 110 - 170 / 170 - 270 / 270 - 300 keV
    Energy resolution ΔE/E ~ 1 × 10-3
    Photon flux 5 × 109 ph/s at 300 keV
    Beam size 3 mm (H) × 1 mm (W)

    Station-B

    Energy range 100 - 120 keV
    Energy resolution ΔE/E < 1 × 10-3
    Photon flux 1 × 1013 ph/s at 100 keV
    Beam size 1 mm (H) × 2 mm (W)

EXPERIMENTAL STATIONS


PUBLICATION SEARCH

* Sorry, Some parts of results are displayed using Japanese characters.

BL08W PUBLICATION SEARCH

 

CONTACT INFORMATION

Please note that each e-mail address is followed by "@SPring-8.or.jp."

Masayoshi ITOU
SPring-8 / JASRI
1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198
Phone: +81-(0)791-58-0803 (ex.3908)
Fax: +81-(0)791-58-0830
e-mail: mito

Naruki TSUJI
SPring-8 / JASRI
1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198
Phone: +81-(0)791-58-0803 (ex.3433)
Fax: +81-(0)791-58-0830
e-mail:ntsuji

最終変更日
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