Calibration of Soft X-Ray Detector for Astronomic Observation

ZHAO Yi-Dong; CUI Ming-Qi; ZHU Pei-Ping; LI Gang; TANG He-Sen; ZHANG Ren-Jian; GU Zheng-Hai; GU Fu-Yuan; GONG Yi-Zhong; LIU Shan-Zhao; SHI Xi-Zhao; ZHANG Nan

Chinese Physics C> 2001, Vol. 25> Issue(12) : 1245-1252

Calibration of Soft X-Ray Detector for Astronomic Observation

Institute of High Energy Physics, CAS, Beijing 100039, China2 Zijinshan Observatory, CAS, Nanjing 210008, China

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Abstract：
A flowing gas proportional counter (FGPC) as the detector for astronomical observation in soft X-ray (0.2-3.5keV) range is calibrated on the 3W1B beamline at Beijing Synchrotron Radiation Facility (BSRF). The dead time, counting rate plateau curves, X-ray energy linearity, energy resolution and window transparency of the FGPC have been measured. By means of a calibrated photodiode (AXUV 100G IRD USA, calibrated in NIST) as a standard detector, the efficiency of the FGPC as function of photons energy has been obtained with an uncertainty between 10%-18%.

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ZHAO Yi-Dong, CUI Ming-Qi, ZHU Pei-Ping, LI Gang, TANG He-Sen, ZHANG Ren-Jian, GU Zheng-Hai, GU Fu-Yuan, GONG Yi-Zhong, LIU Shan-Zhao, SHI Xi-Zhao and ZHANG Nan. Calibration of Soft X-Ray Detector for Astronomic Observation[J]. Chinese Physics C, 2001, 25(12): 1245-1252.

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Received: 2000-12-28
Revised: 1900-01-01

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