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	Monochromatic x-ray-induced thermal effect on four-reflection "nested" mev-monochromators: dynamical diffraction theory and finite-element analysis
	Hu Ling-Fei; Gao Li-Dan; Li Zhen-Jie; Wang Shan-Feng; Sheng Wei-Fan; Liu Peng; Xu Wei
刊名	Chinese physics c
	2015-09-01
卷号	39期号:9页码:7
关键词	Dynamical diffraction theory High energy resolution monochromator Heat load
ISSN号	1674-1137
DOI	10.1088/1674-1137/39/9/096004
通讯作者	Hu ling-fei()
英文摘要	The high energy resolution monochromator (hrm) is widely used in inelastic scattering programs to detect phonons with energy resolution, down to the mev level. although the large amount of heat from insertion devices can be reduced by a high heat-load monochromator, the unbalanced heat load on the inner pair of crystals in a nested hrm can affect its overall performance. here, a theoretical analysis of the unbalanced heat load using dynamical diffraction theory and finite element analysis is presented. by utilizing the ray-tracing method, the performance of different hrm nesting configurations is simulated. it is suggested that the heat balance ratio, energy resolution, and overall spectral transmission efficiency are the figures of merit for evaluating the performance of nested hrms. although the present study is mainly focused on nested hrms working at fe-57 nuclear resonant energy at 14.4 kev, it is feasible to extend this to other nested hrms working at different energies.
WOS关键词	SYNCHROTRON-RADIATION ; SCATTERING ; RESOLUTION ; CRYSTALS ; SILICON
WOS研究方向	Physics
WOS类目	Physics, Nuclear ; Physics, Particles & Fields
语种	英语
出版者	CHINESE PHYSICAL SOC
WOS记录号	WOS:000361416700014
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176400
专题	高能物理研究所
通讯作者	Hu Ling-Fei
作者单位	Chinese Acad Sci, Inst High Energy Phys, BSRF, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hu Ling-Fei,Gao Li-Dan,Li Zhen-Jie,et al. Monochromatic x-ray-induced thermal effect on four-reflection "nested" mev-monochromators: dynamical diffraction theory and finite-element analysis[J]. Chinese physics c,2015,39(9):7.
APA	Hu Ling-Fei.,Gao Li-Dan.,Li Zhen-Jie.,Wang Shan-Feng.,Sheng Wei-Fan.,...&Xu Wei.(2015).Monochromatic x-ray-induced thermal effect on four-reflection "nested" mev-monochromators: dynamical diffraction theory and finite-element analysis.Chinese physics c,39(9),7.
MLA	Hu Ling-Fei,et al."Monochromatic x-ray-induced thermal effect on four-reflection "nested" mev-monochromators: dynamical diffraction theory and finite-element analysis".Chinese physics c 39.9(2015):7.

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