Ultra-low-noise MoCu transition edge sensors for space applications
Ultra-low-noise MoCu transition edge sensors for space applications
复制标题
适用于太空应用的超低噪声 MoCu 过渡边缘传感器
DOI：
10.1063/1.3561432
复制
发表时间：
2011
影响因子：
3.2
通讯作者：
S. Withington
中科院分区：
文献类型：
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作者：
D. Goldie;A. Velichko;D. Glowacka;S. Withington
在实现下一代空间望远镜所需的高灵敏度远红外成像阵列的背景下，对超低噪声MoCu过渡边缘传感器（TES）进行了研究。在四个不同的芯片上，从两个不同的晶片上切割出50多个TES。TESs是16元件阵列的形式，并使用超导量子干涉器件（SQUID）时分复用读出。该器件制作在200 nm厚的氮化硅薄膜上，腿的宽度和长度分别覆盖1-4 μm和160-960 μm的范围。表观临界温度在110-127 mK范围内变化，但表明大部分变化是由于杂散光的差异负载，整个阵列的杂散光为2 ± 2 fW。测得的热浴的热导率范围为0.12-1.1 pW/K，最低值是超低噪声操作所需的典型值。我们还研究了内在的变化在.
A study of ultra-low-noise MoCu transition edge sensors (TESs) has been performed in the context of realizing the highly sensitive far infrared imaging arrays needed for the next generation of space telescopes. More than 50 TESs, on four different chips, cut out of two different wafers were characterized. The TESs were in the form of 16-element arrays and were read out using superconducting quantum interference device (SQUID) time division multiplexing. The devices were fabricated on 200-nm-thick silicon nitride membranes, with leg widths and lengths covering the ranges of 1–4 μm and 160–960 μm, respectively. The apparent critical temperatures varied over 110–127 mK, but it is shown that much of the variation was due to differential loading by stray light, amounting to 2 ± 2 fW across the array. The measured thermal conductances to the heat bath spanned the range 0.12–1.1 pW/K, with the lowest values being typical of those needed for ultra-low-noise operation. We also studied the inherent variation in the...
适用于 APEX-SZ 相机的 TES 测辐射热计阵列
影响因子：
2
作者：
通讯作者：
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