ESS Docs Document 52-v1

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Helium and Large Scale Cryogenics in Accelerator Sciences

Document #:
ESS-doc-52-v1
Document type:
Presentation Slides
Submitted by:
Wolfgang Hees
Updated by:
Wolfgang Hees
Document Created:
14 Apr 2011, 19:37
Contents Revised:
14 Apr 2011, 19:37
Metadata Revised:
14 Apr 2011, 22:55
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Abstract:
Helium has become the quintessential substance and the most practical fluid in Cryogenics, exhibiting properties as unique as superfluidity. Understanding helium properties is of paramount importance to generate low‐temperature environments capable of supporting superconductivity. Hundred years after the first liquefaction of helium by Onnes, numerous fields, including medical imaging, energy storage, high‐energy physics (HEP), and thermonuclear fusion experiments, make use of high‐field superconducting magnets and superconducting RF cavities cooled by Helium.
Giant particle accelerators designed for HEP require large scale cryogenic processes. A variety of cooling processes permit to operate linear accelerators and synchrotrons, using two‐phase flows, supercritical or superfluid helium flows.
The present talk will describe this fluid mysteries and review examples of large scale cryogenic applications used at the European Organization for Nuclear Research (CERN) and at the Fermi National Accelerator Laboratory.
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Keywords:
cryogenics
Notes and Changes:
Seminar given by Christine Darve (Fermilab) at ESS on 2011-04-14.
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