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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; Wang, SF; Sheng, WF; Liu, P; Xu, W
2015
发表期刊CHINESE PHYSICS C
卷号39期号:9页码:96004
通讯作者徐伟
文章类型Article
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.
关键词dynamical diffraction theory high energy resolution monochromator heat load
学科领域Physics
DOI10.1088/1674-1137/39/9/096004
收录类别SCI ; CA
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000361416700014
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228708
专题多学科研究中心
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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.
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