Distributed TES Model for Designing Low Noise Bolometers Approaching SAFARI Instrument Requirements
Distributed TES Model for Designing Low Noise Bolometers Approaching SAFARI Instrument Requirements
复制标题
用于设计接近 SAFARI 仪器要求的低噪声测辐射热计的分布式 TES 模型
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
H. Hoevers
中科院分区：
文献类型：
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作者：
P. Khosropanah;R. Hijmering;M. Ridder;M. Lindeman;L. Gottardi;M. Bruijn;J. Kuur;P. D. Korte;J. R. Gao;H. Hoevers
过渡边缘传感器（TES）是SPICA望远镜上SAFARI成像光谱仪所选择的探测器技术。工商业污水附加费的非经济效益须为$2mbox{--}3 x 10^{-19} mbox{W/}sqrt{mathrm{Hz}}$，以充分利用冷却镜。SRON开发了短波长波段（30-60 μm）的TiAu TES测辐射热计。TES在SiN膜上，其中长而窄的腿充当TES和浴之间的热连接。我们提出了一个分布式模型，占的热传导和热容量的长腿，提供了一个指导方针，设计低噪声探测器。我们报告了我们的最新结果，其中包括测量的暗NEP为4.2美元 10 × 10 - 19 × mbox{W/}sqrt{mathrm{Hz}}$和大约10 fW的饱和功率。
Transition edge sensors (TES) are the chosen detector technology for the SAFARI imaging spectrometer on the SPICA telescope. The TES are required to have an NEP of $2mbox{--}3 imes 10^{-19}~mbox{W/}sqrt{mathrm{Hz}}$ to take full advantage of the cooled mirror. SRON has developed TiAu TES bolometers for the short wavelength band (30–60 μm). The TES are on SiN membranes, in which long and narrow legs act as thermal links between the TES and the bath. We present a distributed model that accounts for the heat conductance and the heat capacity in the long legs that provides a guideline for designing low noise detectors. We report our latest results that include a measured dark NEP of $4.2 imes 10^{-19}~mbox{W/}sqrt{mathrm{Hz}}$ and a saturation power of about 10 fW.