Computer Science
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7018e.147s&link_type=abstract
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation. Edited by Atad-Ettedgui, Eli; Lemke, Dietrich.
Computer Science
Scientific paper
The Hobby-Eberly Telescope (HET) is an existing innovative large telescope of 9.2 meter aperture, located at the McDonald Observatory in West Texas. The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) requires a major upgrade to the HET, including a substantial increase in the telescope field of view, as well as the development and integration of a revolutionary new integral field spectrograph called VIRUS. The Visible Integral-Field Replicable Unit Spectrograph (VIRUS) is an instrument comprising approximately 150 individual IFU-fed spectrographs which will be mounted on the telescope structure. Each spectrograph has a CDD camera detector package which must be cryogenically cooled during scientific operation. In order to cool each of these camera systems a liquid nitrogen system has been proposed and design study completed. The proposed system includes: a liquid nitrogen source, vacuum jacket distribution system, local storage on the telescope, and distribution under a thermal siphon to the individual spectrographs and local thermal connectors.
Booth John A.
Good John M.
Hill Gary J.
MacQueen Phillip J.
Mulholland George T.
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