A modular cryostat for large format and mosaic CCDs

Abstract

With a growing requirement for wide field imaging, the era of mosaic CCDs is gaining importance in astronomical imaging. Large volume cryostats are needed to house large format and mosaic CCDs. A modular CCD cryostat has been developed to house the CCDs of the camera systems being built at Indian Institute of Astrophysics. The design details and performance analysis of the cryostat are reported in this paper.