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BL17SU OUTLINE

Inquiry number

INS-0000000322

ABSTRACT

  BL17SU is designed to promote research on advanced materials by making use of a variety of spectroscopic methods facilitated by high brilliance soft X-ray undulator radiation. Electronic structures and chemical states of various kinds of materials are investigated by X-ray absorption spectroscopy (XAS), photoemission spectroscopy (PES), Auger electron spectroscopy (AES), X-ray emission spectroscopy (XES), soft X-ray diffraction (SXD), and so on. BL17SU is composed of two branched beamlines (branch A and B) in which the soft X-ray beams can be introduced exclusively by switching a beam path using a pre-mirror.
  Branch A has four experimental stations (Ac, A1 and A3). A PES apparatus for gas-phase target and a versatile XAS apparatus combined with a gas cluster ion beam (GCIB) gun are installed in Ac station, a versatile PES apparatus in A1, and a scanning soft X-ray microscope in A3 are installed. On the other hand, branch B is composed of stations B1, Bc and B2. An SXD apparatus is installed in B1 station, a versatile photoemission electron microscope (PEEM) in Bc, and an angle-resolved photoemission spectroscopy (ARPES) apparatus in B2.
  Currently, only the scanning soft x-ray spectromicroscope (branch A) and the versatile PEEM (branch B) apparatuses are open for public use and others are used exclusively by RIKEN staffs.

AREA OF RESEARCH

<Branch A>

  • Atomic and molecular science by XAS and PES/AES of gas-phase target --- Ac station
  • Electronic states (including their depth-dependence) investigation of solid state materials combined with a GCIB gun --- Ac station
  • Analysis of electronic states and band structures by PES --- A1 station
  • Spectromicroscopy of materials surfaces under the conditions of low-vacuum or He ambient pressure environment --- A3 station

<Branch B>

  • Electronic structure analysis of materials with long-period ordering --- B1 station
  • Electronic/magnetic states imaging and its time-resolved observations by PEEM --- Bc station
  • Visualization of electronic states and band structures of advanced materials by ARPES --- B2 station

SOURCE AND OPTICS

  • source

     At the moment, ID17 is operating as a vertical undulator, thus the switching the polarization of incident photon beam is not available.
    Only the vertically polarized soft x-ray beam can be used now.

  • optics

     As indicated in schematic drawings below (top view), soft X-ray beams are introduced exclusively to either branch A or B by inserting/retracting pre-focusing mirrors (M0a, M1a) installed in the optical hutch. Both the branches are equipped with each set of beamline monochromators which is composed of spherical mirrors (M21a~M23a、M21b&M22b) and varied line spacing plane grating monochromators (VLSPGMs, G1a&G2a、G1b&G2b). In addition, each pair of re-focusing mirrors is installed just before A1, A2, B1, Bc and B2 stations where the beams can be focused down to approximately 30 µm (H) × 10 µm (V) on the sample.

  • BL17SU_opt3s.jpg
  • X-rays at sample

    Energy range 0.48 ~ 2.0 keV
    Vertically polarized light At the moment, the switching of the polarization of incident photon beam is not available.
    Photon flux > 1011 photon/s
    Beam size < 0.1 x 0.1 mm2
    Beam size E/ΔE < 104

PUBLICATION SEARCH

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BL17SU PUBLICATION SEARCH

CONTACT INFORMATION

Please note that each e-mail address is followed by "@spring8.or.jp."

Masaki OURA
SPring-8 / RIKEN
1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148
Phone : +81-(0)791-58-2933
Fax : +81-(0)791-58-2934
e-mail : oura

Takuo OHKOCHI
SPring-8 / JASRI
1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198
Phone : +81-(0)791-58-0833
Fax : +81-(0)791-58-0830
e-mail : o-taku

Last modified 2021-10-06 13:29
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