Full Content is available to subscribers

Subscribe/Learn More  >

A Cryogenic Stabilization Scheme for Radio Astronomy Applications

[+] Author Affiliations
Michael J. Smith, Raymond Blundell

Harvard-Smithsonian Center for Astrophysics, Cambridge, MA

Paper No. IMECE2009-11193, pp. 549-552; 4 pages
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4382-6 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME


We report on a scheme to stabilize short term cryogenic temperature variations in equipment used for high frequency radio telescope receivers. A 45.9 cm3 copper helium pot is affixed to a Sumitomo/Daikin 308, GM/JT cold head. 5.7×103 cm3 of helium gas is introduced at the end of the cooling cycle and condensation until zero kPaa is reached. Short term temperature stabilization is achieved through the specific heat of the liquefied helium diminishing thermal deviations up to 46%.

Copyright © 2009 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In