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Modified method for diffraction aberration of one-dimensional wire chamber
其他题名一维丝室气体探测器衍射像差的修正方法研究
Wen ZW(温志文); Qi HR(祁辉荣); Dai HL(代洪亮); Zhang YL(张余炼); Wei K(魏堃); Zhang J(张建); Ou YQ(欧阳群); Wen, ZW; Qi, HR; Dai, HL; Zhang, YL; Wei, K; Zhang, J; Ouyang, Q; Shao, JX
2015
发表期刊ACTA PHYSICA SINICA
卷号64期号:8页码:82901
通讯作者祁辉荣
摘要The one-dimensional position sensitive wire gaseous detector is developed for the synchrotron radiation diffraction, which consists of a single wire of gold-plated tungsten and 200 cathode strips as the readout. The induced signal is produced by the several adjacent cathode strips when X-ray is incident on anode wire with high voltage. Using the center gravity method to analyze the adjacent signals in one dimension, the primary ionization position of the X-ray can be obtained and the position resolution is 160 mu m (FWHM). In Beijing Synchrotron Radiation Facility, the diffraction test is done at the experimental station. When the X-ray irradiates the crystal sample of SiO2, the different sizes of the diffraction rings can be produced. The diffraction angles are measured to be 11.148. and 14.201., and the two-dimensional diffraction rings are reconstructed when the detector is moved and scanned with the several steps in the diffraction ring range. The diffraction aberration of one-dimensional wire chamber is very obvious. In the paper, the relevant influence factors of the detector construct are discussed. The thickness of the working gas and the width of active area window can give rise to the diffraction ring aberration. The theoretical calculation value of the diffraction aberration is larger than the position resolution value of the gaseous detector. The correction method is established based on the corresponding physical analysis, and by this method the value of the diffraction ring point is calculated. The relative aberration of diffraction position is improved by up to 7% with using the method, and the two-dimensional diffraction ring with no aberration can be reconstructed.
文章类型Article
关键词gas detector diffraction measurements synchrotron radiation correction method
学科领域Physics
DOI10.7498/aps.64.082901
收录类别SCI ; EI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000354059200013
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228551
专题实验物理中心
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GB/T 7714
Wen ZW,Qi HR,Dai HL,et al. Modified method for diffraction aberration of one-dimensional wire chamber[J]. ACTA PHYSICA SINICA,2015,64(8):82901.
APA 温志文.,祁辉荣.,代洪亮.,张余炼.,魏堃.,...&Shao, JX.(2015).Modified method for diffraction aberration of one-dimensional wire chamber.ACTA PHYSICA SINICA,64(8),82901.
MLA 温志文,et al."Modified method for diffraction aberration of one-dimensional wire chamber".ACTA PHYSICA SINICA 64.8(2015):82901.
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