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

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LIU Mei, DAI Hong-Liang, QI Hui-Rong, ZHUANG Bao-An, ZHANG Jian, LIU Rong-Guang, ZHU Qi-Ming, OUYANG Qun, CHEN Yuan-Bo, JIANG Xiao-Shan, WANG Ya-Jie, LIU Peng and CHANG Guang-Cai. Beam test of a one-dimensional position sensitive chamber on synchrotron radiation[J]. Chinese Physics C, 2013, 37(10): 108001. doi: 10.1088/1674-1137/37/10/108001
LIU Mei, DAI Hong-Liang, QI Hui-Rong, ZHUANG Bao-An, ZHANG Jian, LIU Rong-Guang, ZHU Qi-Ming, OUYANG Qun, CHEN Yuan-Bo, JIANG Xiao-Shan, WANG Ya-Jie, LIU Peng and CHANG Guang-Cai. Beam test of a one-dimensional position sensitive chamber on synchrotron radiation[J]. Chinese Physics C, 2013, 37(10): 108001.  doi: 10.1088/1674-1137/37/10/108001 shu
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Received: 2012-11-19
Revised: 2012-12-21
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Beam test of a one-dimensional position sensitive chamber on synchrotron radiation

    Corresponding author: LIU Mei,
    Corresponding author: QI Hui-Rong,

Abstract: 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 μm (σ 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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