Performance of flight-model on-board calibration sources on Herschel-SPIRE
Performance of flight-model on-board calibration sources on Herschel-SPIRE
复制标题
Herschel-SPIRE 上飞行模型机载校准源的性能
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
B. Swinyard
中科院分区：
文献类型：
--
作者：
P. Hargrave;T. Waskett;T. Lim;B. Swinyard
赫歇尔空间天文台的 SPIRE 仪器有两个机载校准源。光度计校准器 PCAL 是一种电加热热源，所有探测器（包括光谱仪）都可以看到它。它不是绝对的校准器，而是可在整个校准方案中使用的可重复的亚毫米辐射源。光谱仪校准器的目的是消除赫歇尔望远镜的背景发射，从而提高光谱仪探测器的动态范围。本文详细介绍了校准装置的最终飞行设计，并介绍了 SPIRE 飞行模型地面测试的结果。
The SPIRE instrument for the Herschel Space Observatory has two on-board calibration sources. The photometer calibrator, PCAL, is an electrically-heated thermal source which can be seen by all detectors, including the spectrometer. It is not an absolute calibrator, but a repeatable source of sub-millimetre radiation which may be used in the overall calibration scheme. The purpose of the spectrometer calibrator is to null the background emission from the Herschel telescope, thereby improving the dynamic range of the spectrometer detectors. This paper details the final flight design of the calibration units, and presents results from SPIRE flight model ground testing.