The LSST Camera 500 watt -130 degC Mixed Refrigerant Cooling System
Abstract
The LSST Camera has a higher cryogenic heat load than previous CCD telescope cameras due to its large size (634 mm diameter focal plane, 3.2 Giga pixels) and its close coupled front-end electronics operating at low temperature inside the cryostat. Various refrigeration technologies are considered for this telescope/camera environment. MMR-Technology’s Mixed Refrigerant technology was chosen. A collaboration with that company was started in 2009. The system, based on a cluster of Joule-Thomson refrigerators running a special blend of mixed refrigerants is described. Both the advantages and problems of applying this technology to telescope camera refrigeration are discussed. Test results from a prototype refrigerator running in a realistic telescope configuration are reported. Current and future stages of the development program are described. (auth)
- Authors:
-
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- MMR-Technologies, Mountain View, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- OSTI Identifier:
- 1132852
- Report Number(s):
- SLAC-PUB-15965
- DOE Contract Number:
- AC02-76SF00515
- Resource Type:
- Conference
- Resource Relation:
- Conference: Contributed to SPIE Astronomical Telescopes + Instrumentation, Montreal, Canada, June 22 - 27, 2014
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 79 ASTRONOMY AND ASTROPHYSICS; ENG, INST
Citation Formats
Bowden, Gordon B., Langton, Brian J., Little, William A., Powers, Jacob R, Schindler, Rafe H., Spektor, Sam, and /MMR-Technologies, Mountain View, CA. The LSST Camera 500 watt -130 degC Mixed Refrigerant Cooling System. United States: N. p., 2014.
Web.
Bowden, Gordon B., Langton, Brian J., Little, William A., Powers, Jacob R, Schindler, Rafe H., Spektor, Sam, & /MMR-Technologies, Mountain View, CA. The LSST Camera 500 watt -130 degC Mixed Refrigerant Cooling System. United States.
Bowden, Gordon B., Langton, Brian J., Little, William A., Powers, Jacob R, Schindler, Rafe H., Spektor, Sam, and /MMR-Technologies, Mountain View, CA. 2014.
"The LSST Camera 500 watt -130 degC Mixed Refrigerant Cooling System". United States. https://www.osti.gov/servlets/purl/1132852.
@article{osti_1132852,
title = {The LSST Camera 500 watt -130 degC Mixed Refrigerant Cooling System},
author = {Bowden, Gordon B. and Langton, Brian J. and Little, William A. and Powers, Jacob R and Schindler, Rafe H. and Spektor, Sam and /MMR-Technologies, Mountain View, CA},
abstractNote = {The LSST Camera has a higher cryogenic heat load than previous CCD telescope cameras due to its large size (634 mm diameter focal plane, 3.2 Giga pixels) and its close coupled front-end electronics operating at low temperature inside the cryostat. Various refrigeration technologies are considered for this telescope/camera environment. MMR-Technology’s Mixed Refrigerant technology was chosen. A collaboration with that company was started in 2009. The system, based on a cluster of Joule-Thomson refrigerators running a special blend of mixed refrigerants is described. Both the advantages and problems of applying this technology to telescope camera refrigeration are discussed. Test results from a prototype refrigerator running in a realistic telescope configuration are reported. Current and future stages of the development program are described. (auth)},
doi = {},
url = {https://www.osti.gov/biblio/1132852},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed May 28 00:00:00 EDT 2014},
month = {Wed May 28 00:00:00 EDT 2014}
}