Open AccessDesign and performance of a multilayered mirror monochromator in the low‐energy region of the VUV
Author(s) -
Mekaru Harutaka,
Urisu Tsuneo,
Tsusaka Yoshiyuki,
Masui Shin,
Toyota Eijiro,
Takenaka Hisataka
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/s0909049598000466
Subject(s) - monochromator , optics , photon , synchrotron radiation , reflection (computer programming) , noise (video) , photon energy , total internal reflection , energy (signal processing) , wafer , physics , filter (signal processing) , materials science , optoelectronics , wavelength , computer science , quantum mechanics , artificial intelligence , image (mathematics) , computer vision , programming language
For the energy region from tens to hundreds of electron volts, the multilayered mirror (MLM) monochromator has never been realized due to the difficulty of reducing the background noise of the total reflection component, in spite of its usefulness in synchrotron radiation experiments. In this work, a double‐crystal‐type MLM monochromator equipped with a thin‐film filter has been designed on the basis of trial fabrication of the mirror‐driving system and of Mo/Si and Mo/C MLMs; its performance has been evaluated by calculating its output photon flux. It is shown that by using the MLMs at low incident angles, combined with an appropriate thin‐film filter, it is possible to make a practical monochromator with high output photon flux and low background noise.