Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000exa....10..347t&link_type=abstract
Experimental Astronomy, v. 10, Issue 2/3, p. 347-351 (2000).
Astronomy and Astrophysics
Astronomy
2
Scientific paper
The short-wave channel (SW) of ISOCAM, the IR camera on board the ISO satellite, is equipped with a 32 × 32 CID InSb array. This array shares with other detectors of ISO instruments the characteristic of being subject to some time lag when responding to a flux variation. Known as transient effect, this default which is not quite understood (in particular, it does not correspond to a simple time constant), must be corrected for in data processing. Starting from the remark that the lower the signal, the longer the equivalent time constant, we have developed a mathematical model that reproduces quite well the observed behaviour, using only a small set of parameters. In practice, the model consists of solving a functional equation. The model provides the asymptotic value of the stabilized signal, which is in general the information one looks for. An a posteriori analysis of the form of the functional equation suggests that the effect relates to surface traps in the semi-conductor, as a rough estimation would confirm.
Epstein Gabriel
Le Coupanec P.
Rouan Daniel
Tiphene Didier
No associations
LandOfFree
Modelling Transient Effects in the IR Array of the Short Wavelength Channel of ISOCAM does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Modelling Transient Effects in the IR Array of the Short Wavelength Channel of ISOCAM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling Transient Effects in the IR Array of the Short Wavelength Channel of ISOCAM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-737844