CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Ray tracing study for a detuned nondispersed double crystal monochromator
Hou, ZC(候铮迟); Hou, ZC (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2005
Source PublicationREVIEW OF SCIENTIFIC INSTRUMENTS
ISSN0034-6748
Volume76Issue:1
AbstractThe properties of a detuned nondispersive Si(111) double crystal monochromator were studied by using the ray tracing method. The program used was the PC version of shadow V2.3.3 with gui V1.2. This article concentrates on detuning of the second crystal since detuning of the first crystal causes a larger shift of the energy center of the transmitted beam than detuning of the second one does. The results indicate that for a large detuning angle of the second crystal, the transmitted spectrum splits into two bands with equal bandwidth, which is delayed at a large vertical divergence of the incident beam. With increasing detuning angle of the second crystal, both the fundamental bandwidth (for a well collimated beam) and the harmonic contamination decrease until they reach the minimum at a detuning angle of roughly half the full width at half maximum of the rocking curve, where the left fundamental flux is about 50%. The capability of harmonic suppression by detuning the second crystal is limited, with the harmonic contamination reduced by about two orders of magnitude at most, which implies that other methods, such as double mirror system, must be adopted when smaller harmonic contamination is required. (C) 2005 American Institute of Physics.
Subject AreaBiochemistry & Molecular Biology ; Biophysics
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000226738300012
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8179
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorHou, ZC (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Hou, ZC,Hou, ZC . Ray tracing study for a detuned nondispersed double crystal monochromator[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2005,76(1).
APA Hou, ZC,&Hou, ZC .(2005).Ray tracing study for a detuned nondispersed double crystal monochromator.REVIEW OF SCIENTIFIC INSTRUMENTS,76(1).
MLA Hou, ZC,et al."Ray tracing study for a detuned nondispersed double crystal monochromator".REVIEW OF SCIENTIFIC INSTRUMENTS 76.1(2005).
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