Monochromatic X-ray-induced thermal effect on four-reflection "nested" meV-monochromators: dynamical diffraction theory and finite-element analysis

	Monochromatic X-ray-induced thermal effect on four-reflection "nested" meV-monochromators: dynamical diffraction theory and finite-element analysis
	Hu LF(胡凌飞); Gao LD(高立丹); Li ZJ(李贞杰); Wang SF(王山峰); Sheng WF(盛伟繁); 刘鹏(多); Xu W(徐伟); Hu, LF; Gao, LD; Li, ZJ
刊名	CHINESE PHYSICS C
	2015
卷号	39 期号:9 页码:96004
关键词	dynamical diffraction theory high energy resolution monochromator heat load
通讯作者	徐伟
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.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI ; CA
WOS记录号	WOS:000361416700014
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228708]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Hu LF,Gao LD,Li ZJ,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):96004.
APA	胡凌飞.,高立丹.,李贞杰.,王山峰.,盛伟繁.,...&Xu, W.(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),96004.
MLA	胡凌飞,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):96004.