Initial test results on bolometers for the Planck high frequency instrument.
Initial test results on bolometers for the Planck high frequency instrument.
复制标题
普朗克高频仪器辐射热测量计的初步测试结果。
作者：
W. Holmes;J. Bock;B. Crill;T. Koch;W. Jones;A. Lange;C. Paine
我们总结了喷气推进实验室为将于2009年发射的欧洲航天局/美国国家航空航天局赫歇尔/普朗克联合任务的高频仪器（HFI）所完成的测辐射热计的制造、飞行鉴定以及暗性能情况。HFI是一个多色焦平面，由在100毫开温度下工作的52个测辐射热计组成。每个测辐射热计都安装在一个馈源喇叭 - 滤波器组件上，该组件确定了中心频率在100 - 857吉赫之间的六个频段中的一个。在143 - 857吉赫的五个频段中，每个频段有四个探测器与两种线性偏振耦合，因此可测量总强度。此外，在四个频段（100、143、217和353吉赫）中，每个频段有八个探测器仅与单一线性偏振耦合，因此可提供斯托克斯参数Q和U以及总强度的测量值。所有探测器测量到的噪声等效功率（NEP）等于或低于望远镜的背景极限，时间常数为几毫秒，当5到9角分的波束以每分钟1转的速度扫过天空时，该时间常数足够短以分辨点源。
We summarize the fabrication, flight qualification, and dark performance of bolometers completed at the Jet Propulsion Laboratory for the High Frequency Instrument (HFI) of the joint ESA/NASA Herschel/Planck mission to be launched in 2009. The HFI is a multicolor focal plane which consists of 52 bolometers operated at 100 mK. Each bolometer is mounted to a feedhorn-filter assembly which defines one of six frequency bands centered between 100-857 GHz. Four detectors in each of five bands from 143-857 GHz are coupled to both linear polarizations and thus measure the total intensity. In addition, eight detectors in each of four bands (100, 143, 217, and 353 GHz) couple only to a single linear polarization and thus provide measurements of the Stokes parameters, Q and U, as well as the total intensity. The measured noise equivalent power (NEP) of all detectors is at or below the background limit for the telescope and time constants are a few ms, short enough to resolve point sources as the 5 to 9 arc min beams move across the sky at 1 rpm.
辐射热偏振测量的仪器和分析方法
影响因子：
6.5
作者：
Jones W
通讯作者：
Jones W