• DocumentCode
    809757
  • Title

    The Bevatron Cryopump

  • Author

    Byrns, R.A. ; Tanabe, J.T.

  • Author_Institution
    Lawrence Berkeley Laboratory, University of California Berkeley, California 94720
  • Volume
    20
  • Issue
    3
  • fYear
    1973
  • fDate
    6/1/1973 12:00:00 AM
  • Firstpage
    91
  • Lastpage
    94
  • Abstract
    A cryogenic vacuum pump, designed to lower the base pressure from 2 × 10-6 Torr to 3 × 10-7 Torr was installed in the Bevatron in February 1972. The ~ 11,000 ft3 vacuum volume contains > 100,000 ft2 of outgassing surface and is pumped with twenty-four 32-in. oil diffusion pumps. Nine cryopanels (90 ft total) were distributed around the 360-ft circumference, increasing pump capacity by 400,000 l/s for condensibles at 80°K and 140,000 l/s at 20°K. Benefits include faster pumpdowns, improved beam stability, and higher intensities.
  • Keywords
    Cryogenics; Geometry; Laboratories; Laser excitation; Particle production; Petroleum; Pressure measurement; Pumps; Stability; Synchrotrons;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/TNS.1973.4327050
  • Filename
    4327050
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=809757