BL17SU OUTLINE
問い合わせ番号
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
New Helical-8 Undulator will be operated after 2022B period.
Horizontally-, vertically- and circularly-polarized light will be provided.
Only for the vertically-polarized light, the lowest energy will be available at 125eV. - 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.
- X-rays at sample
Energy range 225 ~ 2,200 eV* (*Although each polarization has a weak intensity, it can be used up to ~3,000 eV.) Horizontally-, vertically- and circularly-polarized light 225 eV for Circularly polarized light, 272 eV for Horizontally polarized light, 136 eV for Vertically polarized light Photon flux > 1011 photon/s Beam size at sample position ~30 µm(H) × 4 µm(V) Energy resolution E/dE ~10,000
PUBLICATION SEARCH
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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
Satoru HAMAMOTO
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 : shamamoto