Open AccessNew beamline optics for the effective use of a wiggler beam
Author(s) -
Nakayama Kan,
Okada Yosimasa,
Fujimoto Hiroyuki
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/s0909049597016130
Subject(s) - beamline , wiggler , monochromator , optics , diffraction , beam (structure) , physics , monochromatic color , nuclear physics , wavelength , cathode ray , electron
A hard X‐ray beamline, BL13A, has been constructed for precision diffraction experiments conducted downstream of the multipole wiggler MPW#13 at the Photon Factory. The BL13A line can be used along with the main beamline, BL13B, which accepts the central 4 mrad of the 5 mrad horizontal fan. BL13A uses the remaining horizontal off‐axis beam. The beam is diffracted by a double‐crystal monochromator which uses asymmetric (422) diffraction with a horizontal diffraction vector. A monochromatic beam with 33.5 keV photon energy is directed to a precision goniometer. Good beam stability and high intensity were obtained.