SPIRE - a bolometer instrument for FIRST

被引：17

作者：

Griffin, M ^{[1
]}

Vigroux, L ^{[1
]}

Swinyard, B ^{[1
]}

机构：

[1] Univ London Queen Mary & Westfield Coll, Dept Phys, London E1 4NS, England

来源：

ADVANCED TECHNOLOGY MMW, RADIO, AND TERAHERTZ TELESCOPES | 1998年 / 3357卷

关键词：

FIRST; far infrared; submillimetre; bolometer; instrumentation;

D O I：

10.1117/12.317373

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The European Space Agency's FIRST satellite will include a submillimetre direct detection instrument using bolometric detectors. The scientific drivers for the instrument are discussed and the essential features of the proposed instrument, SPIRE. are described. SPIRE(Spectral and Photometric Imaging REceiver) comprises a three-band imaging photometer covering the 250-500-mu m range and an imaging Fourier Transform Spectrometer covering wavelengths between 200 and 670 mu m. The SPIRE detectors are 300-mK bolometer arrays providing full sampling of the diffraction spot. The imaging photometer is optimised for deep photometric surveys in the submillimetre (one of the main science goals of the FIRST mission), for which application it will be much more sensitive than any Earth-based facility. The nominal bands for the photometer are 250, 350 and 500 mu m with a spectral resolution of 3. Three detector arrays observe the same 4-arcminute field of view simultaneously, with dichroic beam dividers separating the bands. The imaging spectrometer has a 2-arcminute field of view and an adjustable spectral resolution of 0.04 - 2 cm(-1) (lambda/Delta lambda = 20 - 1000 at 250 mu m).

引用

页码：404 / 413

页数：10