학술논문

The DEIMOS spectrograph for the Keck II Telescope: integration and testing
Document Type
article
Source
Proceedings of SPIE. 4841(3)
Subject
astronomical spectrographs
multi-object spectrographs
astronomical cameras
ground-based instrumentation
CCDs
mosaic detectors
flexure compensation
optical testing
Language
Abstract
The DEIMOS spectrograph is a multi-object spectrograph being built for Keck II. DEIMOS was delivered in February 2002, became operational in May, and is now about three-quarters of the way through its commissioning period. This paper describes the major problems encountered in completing the spectrograph, with particular emphasis on optical quality and image motion. The strategies developed to deal with these problems are described. Overall, commissioning is going well, and it appears that DEIMOS will meet all of its major performance goals.