Thermal conductance measurements for the development of ultra low-noise transition-edge sensors with a new method for measuring the noise equivalent power
Thermal conductance measurements for the development of ultra low-noise transition-edge sensors with a new method for measuring the noise equivalent power
复制标题
热导测量用于开发超低噪声过渡边缘传感器以及测量噪声等效功率的新方法
DOI：
--
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
S. Withington
中科院分区：
文献类型：
--
作者：
K. Rostem;D. Glowacka;D. Goldie;S. Withington
过渡边缘传感器（TES）是天文探测器中使用的敏感器件。最近的地面和空间天文学项目要求TES的噪声等效功率（NEP）降低到精确测量所需的极限，例如CMB的B模式偏振。因此，我们测量了各种几何形状的SixNy桥的热导，并给出了这些低维结构内的声子输运机制的结果。我们还提出了一种新的方法，用于测量的TESs使用片上黑体辐射器的NEP。
Transition-Edge Sensors (TESs) are sensitive devices used in astronomical detectors. Recent projects in ground-based and space astronomy demand the Noise Equivalent Power (NEP) of the TES to be reduced to the limits needed for accurate measurements, for example, of the B-mode polarisation of the CMB. Thus, we have measured thermal conductance of SixNy bridges of various geometries, and present the results that give insight into the phonon transport mechanism inside these low-dimensional structures. We also present a new method for measuring the NEP of TESs using an on-chip black body radiator.