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Measurement of integral diffraction coefficients of crystals on beamline 4B7 of Beijing Synchrotron Radiation Facility |
Yang Jia-Min(杨家敏)a)†, Gan Xin-Shi(甘新式)a),Zhao Yang(赵阳)a), Cui Ming-Qi(崔明启)b),Zhu Tuo(朱托)a),Zhao Yi-Dong(赵屹东)b), Sun Li-Juan(孙丽绢)b),Zheng Lei(郑雷)b),Yan Fen(鄢芬)b), Hu Zhi-Min(胡智民)a),Wei Min-Xi(韦敏习) a), Zhang Ji-Yan(张继彦)a),and Yi Rong-Qing(易荣清)a) |
a Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China; b Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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Abstract Integral diffraction coefficients of the crystal are the essential data of a crystal spectrometer which is extensively used to measure quantitative x-ray spectra of high temperature plasmas in kilo-electron-volt region. An experimental method has been developed to measure the integral diffraction coefficients of crystals on beamline 4B7 of Beijing Synchrotron Radiation Facility. The integral diffraction coefficients of several crystals including polyethylene terephthalate (PET), thallium acid phthalate (TlAP) and rubidium acid phthalate (RAP) crystals have been measured in the x-ray energy range 2100–5600 eV and compared with the calculations of the 'Darwin Prins' and the 'Mosaic' models. It is shown that the integral diffraction coefficients of these crystals are between the calculations of the 'Darwin Prins' and the 'Mosaic' models, but more close to the 'Darwin Prins' model calculations.
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Received: 12 April 2010
Revised: 15 June 2010
Accepted manuscript online:
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PACS:
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07.85.-m
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(X- and γ-ray instruments)
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61.05.cp
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(X-ray diffraction)
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52.70.-m
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(Plasma diagnostic techniques and instrumentation)
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Fund: Project supported by the Foundation of National Key Laboratory of High Temperature and Density Plasma Physics (Grant No. 9140C6804020704), the National Natural Science Foundation of China (Grant No. 10874156 ), and one of the authors, Gan Xin-Shi, was also partially supported by the School of Physical Science and Technology in Sichuan University, China. |
Cite this article:
Yang Jia-Min(杨家敏), Gan Xin-Shi(甘新式), Zhao Yang(赵阳), Cui Ming-Qi(崔明启), Zhu Tuo(朱托), Zhao Yi-Dong(赵屹东), Sun Li-Juan(孙丽绢), Zheng Lei(郑雷), Yan Fen(鄢芬), Hu Zhi-Min(胡智民), Wei Min-Xi(韦敏习), Zhang Ji-Yan(张继彦), and Yi Rong-Qing(易荣清) Measurement of integral diffraction coefficients of crystals on beamline 4B7 of Beijing Synchrotron Radiation Facility 2011 Chin. Phys. B 20 010705
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