Spatial harmonic rejection in a large offset rotated-inclined double crystal monochromator at BL15XU in SPring-8

Autor:	Hideki Yoshikawa, Sei Fukushima, Masato Okui, Nobuhiro Yagi, Atsushi Nisawa, Takeshi Mizutani
Rok vydání:	2003
Předmět:	Physics Nuclear and High Energy Physics Offset (computer science) business.industry SPring-8 First order Intensity ratio law.invention Harmonic rejection Optics law Double crystal business Instrumentation Monochromator
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 497:563-568
ISSN:	0168-9002
DOI:	10.1016/s0168-9002(02)01797-7
Popis:	A 100 mm offset rotated-inclined double crystal monochromator has been installed at BL15XU in SPring-8. The spatial profiles of the exit X-ray beam by using Si(1 1 1) in inclined geometry was measured from 5 to 20 keV . The vertical deviation, due to refraction, between the first and the higher order was more than 0.7 mm . The large deviation enables to eliminate the higher-order reflections by spatial screening with horizontal blade slits. The intensity ratio of the higher-order reflection to the first order was less than 10−5 over the whole energy range.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::21cdbff34f1efb56df2238f495f3862c https://doi.org/10.1016/s0168-9002(02)01797-7 Zobrazit plný text záznamu Full Text from ScienceDirect