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Procurement and commissioning of the CHL refrigerator at CEBAF.

Author(s) : CHRONIS W. C., ARENIUS D. M., BEVINS B. S., GANNI V., KASHY D. H., KEESEE M. M., REID T. R., WILSON J. D.

Summary

The CEBAF (Continuous Electron Beam Accelerator Facility, USA) Central Helium Liquefier (CHL) provides 2 K refrigeration to the 338 superconducting niobium cavities in two 400 megaelectronvolt linacs and one 45-megaelectronvolt injector. The CHL consists of three first stage and three second stage compressors, a 4.5 K cold box, a 2 K cold box, liquid and gaseous helium storage, liquid nitrogen storage, and transfer lines. The system was designed to provide 4.8 kilowatts of primary refrigeration at 2 K, 12 kilowatts of shield refrigeration at 45 K for the linac cryomodules, and 10 g/s of liquid flow for the end stations.

Details

  • Original title: Procurement and commissioning of the CHL refrigerator at CEBAF.
  • Record ID : 1997-2614
  • Languages: English
  • Source: Advances in cryogenic engineering.
  • Publication date: 1996/07/17
  • Document available for consultation in the library of the IIR headquarters only.

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