论文标题
低噪声反向分离式千叠型过渡过渡边缘传感器阵列的表征
Characterization of Low-noise Backshort-Under-Grid Kilopixel Transition Edge Sensor Arrays for PIPER
论文作者
论文摘要
我们介绍了针对原始通胀膨胀探险家（Piper）气球传播仪器开发的千像素，填充的反网格（虫）过渡 - 偏转传感器（TES）阵列的实验室表征。 Piper旨在绘制CMB在最大的角度尺度上的极化，并通过观察到200至600 GHz的四个频段中的大部分天空来表征尘埃的前景。基于平面鱿鱼的时空多路复用器芯片（2Dmux）的匹配外形阵列读取了错误TES阵列，并通过indium bump粘结直接与检测器阵列杂交。在这里，我们讨论了2DMUX的性能，并目前测量了TES过渡温度，导热能力，饱和功率和初步噪声性能。探测器在几个AW/RTHZ的订单上实现低于1 PW的饱和功率（NEP）。通过在模拟气球浮点条件的环境中执行的集成管接收器中的飞行前测试进一步验证探测器性能。
We present laboratory characterization of kilo-pixel, filled backshort-under-grid (BUG) transition-edge sensor (TES) arrays developed for the Primordial Inflation Polarization ExploreR (PIPER) balloon-borne instrument. PIPER is designed to map the polarization of the CMB on the largest angular scales and characterize dust foregrounds by observing a large fraction of the sky in four frequency bands in the range 200 to 600 GHz. The BUG TES arrays are read out by planar SQUID-based time division multiplexer chips (2dMUX) of matching form factor and hybridized directly with the detector arrays through indium bump bonding. Here, we discuss the performance of the 2dMUX and present measurements of the TES transition temperature, thermal conductance, saturation power, and preliminary noise performance. The detectors achieve saturation power below 1 pW and phonon noise equivalent power (NEP) on the order of a few aW/rtHz. Detector performance is further verified through pre-flight tests in the integrated PIPER receiver, performed in an environment simulating balloon float conditions.
