Thumbnail
Access Restriction
Open

Author Naidu, B. N. ♦ Srinivasan, R. ♦ Mohan, V. ♦ Sagar, R.
Source Aryabhatta Research Institute of Observational Sciences (ARIES)
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword Mosaic CCDs-Calibration-THX7897M-Cross-talk
Abstract We evaluate performance of the 4K x 4K mosaic CCD camera system development at the Indian Institute of Astrophysics using four Thomson CCDs in a buttable configuration. The cameras system consists of a mosaic CCD dewar developed to mount the four CCDs and an electronics controller designed to control the mosaic configuration. A window based data acquisition software is used to configure the controller and acquire images from the camera. The calibration measurements indicate that all 4 CCDs have similar characteristics with a gain of about 3.9 e/ADU, rms noise of ~19 e, full-well capacity of ~ 57000 ADU, non-linearity of ~ 0.4 % and peak quantum efficiency of ~ 40 % in the red region. The problem of cross-talk is faced in this multi-readout system and a solution is offered. The problem of cross-talk is faced in this multi-readout system and a solution is offered. The performance of the mosaic CCD camera has been found satisfactory at the telescope.
Part of series basi29-545
Educational Use Research
Education Level UG and PG
Learning Resource Type Article