Open AccessHigh‐resolution spherical grating monochromator for the undulator beamline (BL‐16B) at the Photon Factory
Author(s) -
Shigemasa Eiji,
Toyoshima Akio,
Yan Yonglian,
Hayaishi Tatsuji,
Soejima Koichi,
Kiyokura Takanori,
Yagishita Akira
Publication year - 1998
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049597019791
Subject(s) - monochromator , undulator , beamline , physics , grating , optics , photon , photon energy , photon flux , range (aeronautics) , materials science , laser , beam (structure) , wavelength , composite material
The design and performance of a 24 m high‐resolution spherical grating monochromator (H‐SGM) for the undulator beamline (BL‐16B) at the Photon Factory are described. With three interchangeable gratings of 400, 900 and 2000 lines mm −1 , the H‐SGM is designed to cover the photon energy range 40–600 eV. With a resolving power of approximately 2000 in the photon energy range 40–530 eV, more than 10 11 photons s −1 have been measured. The best resolutions obtained so far, at a substantially lower photon flux, are greater than 10 000 at 250 eV and 8000 at 400 eV