Chinese Physics C > 2012, Vol. 36 > Issue(10): 991-995 DOI: 10.1088/1674-1137/36/10/013

Low temperature testing and neutron irradiation of a swept charge device on board the HXMT satellite

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We present the low temperature testing of an SCD detector, investigating its performance such as readout noise, energy resolution at 5.9 keV and dark current. The SCD's performance is closely related to temperature, and the temperature range of -80 ℃ to -50 ℃ is the best choice, where the FWHM at 5.9 keV is about 130 eV. The influence of the neutron irradiation from an electrostatic accelerator with fluence up to 1×10 ⁹cm ^-2has been examined. We find the SCD is not vulnerable to neutron irradiation. The detailed operations of the SCD and the test results of low temperature are reported, and the results of neutron irradiation are discussed.

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WANG Yu-Sa, CHEN Yong, XU Yu-Peng, YANG Yan-Ji, CUI Wei-Wei, LI Mao-Shun, LIU Xiao-Yan, WANG Juan, HAN Da-Wei, CHEN Tian-Xiang, LI Cheng-Kui, HUO Jia, LI Zheng-Wei, LI Wei, HU Wei, ZHANG Yi, LU Bo, ZHU Yue, LIU Yan, WU Di, SUN Qing-Rong and ZHANG Zi-Liang. Low temperature testing and neutron irradiation of a swept charge device on board the HXMT satellite[J]. Chinese Physics C, 2012, 36(10): 991-995. doi: 10.1088/1674-1137/36/10/013

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Received: 2012-02-06
Revised: 2012-03-21

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Low temperature testing and neutron irradiation of a swept charge device on board the HXMT satellite

Corresponding author:WANG Yu-Sa,

Received Date:2012-02-06

Accepted Date:2012-03-21

Available Online:2012-10-05

Abstract:We present the low temperature testing of an SCD detector, investigating its performance such as readout noise, energy resolution at 5.9 keV and dark current. The SCD's performance is closely related to temperature, and the temperature range of -80 ℃ to -50 ℃ is the best choice, where the FWHM at 5.9 keV is about 130 eV. The influence of the neutron irradiation from an electrostatic accelerator with fluence up to 1×10⁹cm^-2has been examined. We find the SCD is not vulnerable to neutron irradiation. The detailed operations of the SCD and the test results of low temperature are reported, and the results of neutron irradiation are discussed.

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Low temperature testing and neutron irradiation of a swept charge device on board the HXMT satellite

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通讯作者:陈斌, bchen63@163.com

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