中国物理B ›› 2017, Vol. 26 ›› Issue (2): 25204-025204.doi: 10.1088/1674-1056/26/2/025204

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Detailed calibration of the PI-LCX: 1300 high performance single photon counting hard x-ray CCD camera

Wei Hong(洪伟), Xian-Lun Wen(温贤伦), Lai Wei(魏来), Bin Zhu(朱斌), Yu-Chi Wu(吴玉迟), Ke-Gong Dong(董克攻), Chun-Ye Jiao(焦春晔), Bo Wu(伍波), Ying-Ling He(何颖玲), Fa-Qiang Zhang(张发强), Wei-Min Zhou(周维民), Yu-Qiu Gu(谷渝秋)   

  1. Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China
  • 收稿日期:2016-10-19 修回日期:2016-11-22 出版日期:2017-02-05 发布日期:2017-02-05
  • 通讯作者: Wei Hong E-mail:jminhong@126.com
  • 基金资助:
    Project supported by the Science Foundation of China Academy of Engineering Physics (Grant Nos. 2013A0103003 and 2012B0102008) and the National High-Tech Inertial Confinement Fusion Committee of China.

Detailed calibration of the PI-LCX: 1300 high performance single photon counting hard x-ray CCD camera

Wei Hong(洪伟), Xian-Lun Wen(温贤伦), Lai Wei(魏来), Bin Zhu(朱斌), Yu-Chi Wu(吴玉迟), Ke-Gong Dong(董克攻), Chun-Ye Jiao(焦春晔), Bo Wu(伍波), Ying-Ling He(何颖玲), Fa-Qiang Zhang(张发强), Wei-Min Zhou(周维民), Yu-Qiu Gu(谷渝秋)   

  1. Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China
  • Received:2016-10-19 Revised:2016-11-22 Online:2017-02-05 Published:2017-02-05
  • Contact: Wei Hong E-mail:jminhong@126.com
  • Supported by:
    Project supported by the Science Foundation of China Academy of Engineering Physics (Grant Nos. 2013A0103003 and 2012B0102008) and the National High-Tech Inertial Confinement Fusion Committee of China.

摘要: X-ray charge-coupled-device (CCD) camera working in single photon counting mode is a type of x-ray spectrometer with high-sensitivity and superior signal-to-noise performance. In this study, two single photon counting CCD cameras with the same mode (model: PI-LCX: 1300) are calibrated with quasi-monochromatic x-rays from radioactive sources and a conventional x-ray tube. The details of the CCD response to x-rays are analyzed by using a computer program of multi-pixel analyzing and event-distinguishing capability. The detection efficiency, energy resolution, fraction of multi-pixel events each as a function of x-ray energy, and consistence of two CCD cameras are obtained. The calibrated detection efficiency is consistent with the detection efficiency from Monte Carlo calculations with XOP program. When the multi-pixel event analysis is applied, the CCDs may be used to measure x-rays up to 60 keV with good energy resolution (EE≈100 at 60 keV). The difference in detection efficiency between two CCD cameras is small (5.6% at 5.89 keV), but the difference in fraction of the single pixel event between them is much larger (25% at 8.04 keV). The obtained small relative error of detection efficiency (2.4% at 5.89 keV) makes the high accurate measurement of x-ray yield possible in the laser plasma interaction studies. Based on the discrete calibration results, the calculated detection efficiency with XOP can be used for the whole range of 5 keV-30 keV.

关键词: hard x-ray detector, single photon counting CCD, calibration, laser plasmas

Abstract: X-ray charge-coupled-device (CCD) camera working in single photon counting mode is a type of x-ray spectrometer with high-sensitivity and superior signal-to-noise performance. In this study, two single photon counting CCD cameras with the same mode (model: PI-LCX: 1300) are calibrated with quasi-monochromatic x-rays from radioactive sources and a conventional x-ray tube. The details of the CCD response to x-rays are analyzed by using a computer program of multi-pixel analyzing and event-distinguishing capability. The detection efficiency, energy resolution, fraction of multi-pixel events each as a function of x-ray energy, and consistence of two CCD cameras are obtained. The calibrated detection efficiency is consistent with the detection efficiency from Monte Carlo calculations with XOP program. When the multi-pixel event analysis is applied, the CCDs may be used to measure x-rays up to 60 keV with good energy resolution (EE≈100 at 60 keV). The difference in detection efficiency between two CCD cameras is small (5.6% at 5.89 keV), but the difference in fraction of the single pixel event between them is much larger (25% at 8.04 keV). The obtained small relative error of detection efficiency (2.4% at 5.89 keV) makes the high accurate measurement of x-ray yield possible in the laser plasma interaction studies. Based on the discrete calibration results, the calculated detection efficiency with XOP can be used for the whole range of 5 keV-30 keV.

Key words: hard x-ray detector, single photon counting CCD, calibration, laser plasmas

中图分类号:  (Laser-plasma interactions)

  • 52.38.-r
52.59.Px (Hard X-ray sources) 52.70.La (X-ray and γ-ray measurements) 07.85.Nc (X-ray and γ-ray spectrometers)