Simple, high-resolution method for measurement of the natural relative energy bandwidth of Si(111) double crystal monochromators

doi:10.1016/j.nima.2020.164526

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Simple, high-resolution method for measurement of the natural relative energy bandwidth of Si(111) double crystal monochromators
	Li, ZL ; Yang, JL ; Si, SY ; Li, T ; Hu, LF ; Song, L ; Xue, L ; Wang, J ; Zhang, XW
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
	2020
卷号	983 页码:-
关键词	COOLED SILICON CRYSTAL PERFORMANCE POWER DIFFRACTION BEAMLINE
ISSN号	0168-9002
DOI	10.1016/j.nima.2020.164526
文献子类	期刊论文
英文摘要	Measurement of photon energy resolution, an important operational parameter of X-ray double-crystal monochromators (DCMs), is complicated by the coupled relationship between energy bandwidth and diffraction angle. This paper reports two methods of analyzing the natural relative energy bandwidth of DCMs at fixed photon energy. The first is based on measurement of the post-DCM beam using a monolithic double channel-cut monochromator (MDCM), while the second uses measurements of the K absorption edge of copper (Cu) in the post-DCM beam as a small vertical angular slice of the source is scanned. Both analysis methods eliminate the effects of synchrotron radiation (SR) vertical angular divergence. The natural relative energy bandwidth values for the Si(111) DCM measured by the MDCM and Cu K-edge absorption methods are 1.59x10(-4) at 12.763 keV and 1.61x10(-4) at 8.979 keV, respectively. This result demonstrates that the two methods offer nearly the same level of precision for determining the natural relative energy bandwidth of Si(111) DCMs. However, the Cu K-edge absorption method has the advantages of requiring simpler experimental equipment and significantly shorter data acquisition time.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33136]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, ZL,Yang, JL,Si, SY,et al. Simple, high-resolution method for measurement of the natural relative energy bandwidth of Si(111) double crystal monochromators[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2020,983:-.
APA	Li, ZL.,Yang, JL.,Si, SY.,Li, T.,Hu, LF.,...&Zhang, XW.(2020).Simple, high-resolution method for measurement of the natural relative energy bandwidth of Si(111) double crystal monochromators.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,983,-.
MLA	Li, ZL,et al."Simple, high-resolution method for measurement of the natural relative energy bandwidth of Si(111) double crystal monochromators".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 983(2020):-.