Long-term test of a stacked CdTe mini-HXI setup
Long-term test of a stacked CdTe mini-HXI setup
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堆叠 CdTe mini-HXI 设置的长期测试
DOI:
10.1016/j.nima.2017.11.035
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Boatella Polo Cesar
中科院分区:
文献类型:
--
作者:
Maier Daniel;Horeau Benoit;Laurent Philippe;Limousin Olivier;Renaud Diana;Kawaharada Madoka;Kokubun Motohide;Sato Goro;Takahashi Tadayuki;Watanabe Shin;Nakazawa Kazuhiro;Boatella Polo Cesar
This work presents a long-term operation of two stacked CdTe double sided strip detectors that are comparable with the CdTe detectors onboard Hitomi’s HXI. The goal of this test is to study the evolution of the spectroscopic performance of the detectors during a one year operation cycle which resembles the in-orbit operation cycle of Hitomi HXI. Crystal defects inside CdTe cause a degradation of the spectroscopic performance (polarization effect) of the crystal which is becoming worse during detector operation. In order to prevent crystal polarization, the detectors are reset (switch-off of the depletion voltage) once a day. Our main investigation was to study if a long-term degradation can occur as a result of incomplete depolarization during the reset. We present the hardware setup and the analytical steps that were used to investigate the detector stability during each day and over the whole testing period. For the anode signals our results show at 60 keV: a daily line drift of (− 2. 8±0. 7) eV/ks while the long-term drift is (− 1. 5±1. 2) eV/day. The degradation of the energy resolution is measured to be (+ 2. 4±0. 3) eV/ks FWHM and the loss of efficiency is (− 0. 29±0. 02)%/ks.
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DOI:
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DOI:
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发表时间:
1974
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影响因子:
--
作者:
R. Bell;G. Entine;H. Serreze
通讯作者:
H. Serreze
DOI:
10.1016/j.nima.2016.03.038
发表时间:
2016
期刊:
NIMA
影响因子:
--
作者:
G. Sato;K. Hagino et al.
通讯作者:
K. Hagino et al.
DOI:
10.1016/s0168-9002(99)01228-0
发表时间:
2000
影响因子:
1.4
作者:
O. Limousin;C. Blondel;J. Cretolle;H. Dzitko;P. Laurent;F. Lebrun;J. Leray;M. Arques;N. Baffert;F. Mathy;A. Noca;P. Trystram;P. Villard;P. Baron;E. Delagnes;M. Rouger
通讯作者:
M. Rouger
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
A. Meuris;O. Limousin;C. Blondel
通讯作者:
C. Blondel