Open AccessA soft X‐ray (80–1500 eV) grazing‐incidence monochromator with varied‐line‐spacing plane gratings at PF‐BL‐11A
Author(s) -
Kitajima Yoshinori,
Amemiya Kenta,
Yonamoto Yoshiki,
Ohta Toshiaki,
Kikuchi Takashi,
Kosuge Takashi,
Toyoshima Akio,
Ito Kenji
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/s0909049597020335
Subject(s) - monochromator , optics , beamline , grating , physics , photon energy , line (geometry) , diffraction grating , materials science , photon , optoelectronics , beam (structure) , wavelength , geometry , mathematics
The design and performance of a new soft X‐ray beamline BL‐11A at the Photon Factory (PF) are presented. A Hettrick‐type grazing‐incidence monochromator equipped with three varied‐line‐spacing plane gratings was designed and constructed at a bending‐magnet source of the PF 2.5 GeV storage ring. An 800 lines mm −1 laminar grating produced by aspheric‐wavefront holographic recording optics, as well as a mechanically ruled blazed one, were tested. A resolving power of more than 4500 was achieved at 400 eV with either grating, and ∼10 10 photons s −1 are available at a resolving power of 2000. High photon flux enables low‐concentration samples, such as surface adsorbates, to be studied. A simple scanning mechanism for a wide energy range is quite useful for EXAFS measurements on light elements such as C, N and O.