Development of Multi-temperature Calibrator for the TES Bolometer Camera: System Design
Development of Multi-temperature Calibrator for the TES Bolometer Camera: System Design
复制标题
TES 测辐射热计相机多温度校准器的开发：系统设计
DOI：
10.1007/s10909-018-1916-1
复制
发表时间：
2018
影响因子：
2
通讯作者：
R. Kawabe
中科院分区：
文献类型：
--
作者：
T. Takekoshi;K. Ohtawara;T. Oshima;S. Ishii;N. Izumi;T. Izumi;M. Yamaguchi;S. Suzuki;K. Muraoka;A. Hirota;F. Saito;S. Nakatsubo;A. Kouchi;T. Ito;K. Uemizu;Y. Fujii;Y. Tamura;K. Kohno;R. Kawabe
我们开发了一个简单的附加，无冷冻剂，低功耗校准器的一个新的过渡边缘传感器（TES）测辐射热计相机安装在ASTE 10米望远镜。为了测量TES测辐射热计的响应度并准确校正非线性和大气消光，我们设计了一个安装在低温恒温器窗口前的电机驱动的旋转滤光轮系统。该校准器需要覆盖各种大气条件下的负载功率，其对应于0.5-4 mm的可降水量（PWV）。对于这个PWV范围，对于1.1和0.85 mm的观测带，需要25-100 K的黑体。为了模拟温度范围，低温恒温器中的测辐射热计还通过球面镜光学耦合到低温恒温器内的低温级（K）。此外，我们使用了适度吸收的聚苯乙烯板，放置在球面镜和低温恒温器窗口之间。滤光片的各种组合通过滤光轮系统产生八种不同的温度，并模拟ASTE现场各种天气条件下的大气排放。
We developed a simple add-on, cryogen-free, and low-power consumption calibrator for a new transition-edge sensor (TES) bolometer camera mounted on the ASTE 10-m telescope. To measure the responsivity of the TES bolometers and accurately correct for the nonlinearity and atmospheric extinction, we designed a motor-driven rotating filter wheel system installed in front of the cryostat window. This calibrator is required to cover the loading power under various atmospheric conditions, which corresponds to precipitable water vapor (PWV) of 0.5–4 mm. For this range of PWV, 25–100 K blackbodies are necessary for the observing bands of 1.1 and 0.85 mm. To simulate the temperature range, bolometers in the cryostat are also optically coupled to the low-temperature stage (K) inside the cryostat by spherical mirrors. In addition, we used moderately absorptive polystyrene plates that are placed between a spherical mirror and the cryostat window. Various combinations of filters result in eight different temperatures by the filter wheel system and simulate the atmospheric emission under various weather conditions at the ASTE site.