Beam test of a one-dimensional position sensitive chamber on synchrotron radiation

A one-dimensional single-wire chamber was developed to provide high position resolution for powder diffraction experiments with synchrotron radiation. A diffraction test using the sample of SiO2 has been accomplished at 1W2B laboratory of Beijing Synchrotron Radiation Source. The data of the beam te...

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Bibliographic Details
Published inChinese physics C Vol. 37; no. 10; pp. 105 - 109
Main Author 刘梅 代洪亮 祁辉荣 庄保安 张建 刘荣光 朱启明 欧阳群 陈元柏 江晓山 王雅洁 刘鹏 常广才
Format Journal Article
LanguageEnglish
Published 01.10.2013
Subjects
Beams (radiation)
Chambers
Detectors
Deviation
Diffraction
Optimization
Standard data
Synchrotron radiation
一维
位置分辨率
光束
同步辐射光源
敏感
测试
粉末衍射
衍射实验
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ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/37/10/108001

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Summary:A one-dimensional single-wire chamber was developed to provide high position resolution for powder diffraction experiments with synchrotron radiation. A diffraction test using the sample of SiO2 has been accomplished at 1W2B laboratory of Beijing Synchrotron Radiation Source. The data of the beam test were analyzed and some diffraction angles were obtained. The experimental results were in good agreement with standard data from ICDD powder diffraction file. The precision of diffraction angles was 1% to 4.7%. Most of the relative errors between measured values of diffraction angles and existing data were less than 1%. As for the detector, the best position resolution in the test was 138 p.m （a value） with an X-ray tube. Finally, discussions of the results were given. The major factor that affected the precision of measurement was deviation from the flat structure of the detector. The effect was analyzed and the conclusion was reached that it would be the optimal measurement scheme when the distance between the powder sample and detector was from 400 mm to 600 mm.
Bibliography:gaseous detector, synchrotron radiation, powder X-ray diffraction, ICDD-pdf
11-5641/O4
A one-dimensional single-wire chamber was developed to provide high position resolution for powder diffraction experiments with synchrotron radiation. A diffraction test using the sample of SiO2 has been accomplished at 1W2B laboratory of Beijing Synchrotron Radiation Source. The data of the beam test were analyzed and some diffraction angles were obtained. The experimental results were in good agreement with standard data from ICDD powder diffraction file. The precision of diffraction angles was 1% to 4.7%. Most of the relative errors between measured values of diffraction angles and existing data were less than 1%. As for the detector, the best position resolution in the test was 138 p.m （a value） with an X-ray tube. Finally, discussions of the results were given. The major factor that affected the precision of measurement was deviation from the flat structure of the detector. The effect was analyzed and the conclusion was reached that it would be the optimal measurement scheme when the distance between the powder sample and detector was from 400 mm to 600 mm.
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ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/37/10/108001