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Detailed calibration of the PI-LCX:1300 high performance single photon counting hard x-ray CCD camera
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作者 Wei Hong Xian-Lun Wen +9 位作者 Lai Wei Bin Zhu Yu-Chi Wu Ke-Gong Dong Chun-Ye Jiao Bo Wu Ying-Ling He Fa-Qiang Zhang Wei-Min Zhou Yu-Qiu Gu 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第2期334-340,共7页
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 countin... 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 ke V with good energy resolution(E /?E ≈ 100 at60 ke V). The difference in detection efficiency between two CCD cameras is small(5.6% at 5.89 ke V), but the difference in fraction of the single pixel event between them is much larger(25% at 8.04 ke V). The obtained small relative error of detection efficiency(2.4% at 5.89 ke V) 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 ke V–30 ke V. 展开更多
关键词 hard x-ray detector single photon counting ccd calibration laser plasmas
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A rapid and convenient experimental method of absolutely calibrating transmission of x-ray flat-response filter
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作者 Jian Yu Li-Fei Hou +5 位作者 Jing Wang Wen-Hai Zhang Ming Chen Bao-Chong Zhou Sha-Li Xiao Shen-Ye Liu 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第10期271-275,共5页
We develop a rapid and convenient experimental method of absolutely calibrating the transmission of an x-ray flatresponse filter. The calibration experiment is performed on a small laser-target facility, and a set of ... We develop a rapid and convenient experimental method of absolutely calibrating the transmission of an x-ray flatresponse filter. The calibration experiment is performed on a small laser-target facility, and a set of high resolution holographic flat-field grating spectrometers is used as a discrimination system of the laser-produced x-ray source. Given that the holographic flat-field grating has a relatively large width, the grating is divided into two regions for use in that direction,where one region has the filter added and the other region does not. The filter transmission is determined by dividing the x-ray signal counts detected when the filter is in the line of sight by those detected when the filter is out of the line of sight.We find that the calibration results of this experiment agree with the calibration results using a synchrotron radiation source,as well as simulation results. Our method is not only highly reliable but also rapid and convenient. 展开更多
关键词 flat-response filter absolute transmission flat-field grating spectrometer x-ray ccd camera
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