LOW-BACKGROUND IR CAMERA WITH IMAGE TRANSLATION

Authors
MILOVIDOV VL
Citation
Vl. Milovidov, LOW-BACKGROUND IR CAMERA WITH IMAGE TRANSLATION, Instruments and experimental techniques, 39(1), 1996, pp. 101-104
Citations number
4
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Instruments and experimental techniques → ACNP
ISSN journal
00204412
Volume
39
Issue
1
Year of publication
1996
Pages
101 - 104
Database
ISI
SICI code
0020-4412(1996)39:1<101:LICWIT>2.0.ZU;2-B
Abstract
A low-background IR camera with image translation for astronomical obs ervations is described. The background level on photodetectors over th e range 8.5-11.9 mu m was 10(-4) W/cm(2) or (5 x 10(15) photon/(cm(2) s). The camera walls and translating optics were cooled with liquid ni trogen. The cooling time was 8 hours. Daily variations of the backgrou nd power on photo detectors were +/- 6% and were related to variations in the ambient temperature. In most cases the nighttime background le vel was lower.