Simulation of the Cosmic Ray Impact on the TES Detectors of SPICA/SAFARI
Simulation of the Cosmic Ray Impact on the TES Detectors of SPICA/SAFARI
复制标题
宇宙射线对 SPICA/SAFARI TES 探测器影响的模拟
DOI:
10.1007/s10909-022-02815-8
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发表时间:
2022
影响因子:
2
通讯作者:
Khosropanah P.
中科院分区:
文献类型:
--
作者:
Stockmans T. A.;Almasi A.;Stever S. L.;Khosropanah P.
The data from the Planck and Herschel space observatories revealed that the cosmic rays at L2 orbit can have a significant impact on the performance of scientific instruments. In this paper, we present our simulation results of such impacts on SAFARI/SPICA, a far-infrared spectrometer equipped with transition-edge sensors (TESs). These TESs are fabricated on SiN membranes and suspended by long and thin SiN legs that thermally isolate them from the surrounding silicon structure (wafer). Cosmic rays that pass through this surrounding structure deposit a portion of their energy, leading to temperature fluctuations in the wafer. These temperature fluctuations are sensed by the TES detectors as an effective bath temperature and result in additional noise. To simulate the impact, we generate a 2D model of the wafer and the suspended TESs in COMSOL 5.4. This 2D model is bombarded with 128 randomly generated cosmic rays according to the observed energy distributions at L2. Subsequently, the temperature fluctuations at different points on the wafer are estimated. Our results show that these thermal fluctuations, as well as the calculated additional TES noise caused by them, depend strongly on the heat-sink design of the wafer. We study the impact of the different heat sink designs on the noise profile of the system. Later, these results are compared to the SAFARI instrument noise requirements.
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影响因子:
4
作者:
L. Gottardi;A. Kozorezov;H. Akamatsu;J. Kuur;M. Bruijn;R. Hartog;R. Hijmering;P. Khosropanah;C. Lambert;A. Linden;M. Ridder;Toyoaki Suzuki;Jan
通讯作者:
Jan
DOI:
10.1117/12.2233472
发表时间:
2016
期刊:
2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)
影响因子:
--
作者:
P. Khosropanah;Toyoaki Suzuki;M. Ridder;R. Hijmering;H. Akamatsu;L. Gottardi;J. Kuur;J. Gao;B. Jackson
通讯作者:
B. Jackson
影响因子:
2
作者:
Stever S. L.;Peille P.;Bruijn M. P.;Roussafi A.;Lotti S.;Macculi C.;Janssen R. M. J.;den Hartog R.
通讯作者:
den Hartog R.
DOI:
10.1016/j.nima.2012.05.055
发表时间:
2012
期刊:
影响因子:
--
作者:
S. Lotti;E. Perinati;L. Natalucci;L. Piro;T. Mineo;L. Colasanti;C. Macculi
通讯作者:
C. Macculi