Two phase cooling for superconducting magnets
Abstract
A closed circuit tubular cooling system for superconducting magnets offers advantages of limiting boiloff and containing high pressures during quenches. Proper location of automatic valves to lower pressures and protect the refrigerator in the event of quenches is described. Theoretical arguments and experimental evidence are given against a previously suggested method to determine He two phase flow regimes. If loss of flow occurs due to some types of refrigeration failure and transfer lines have enough heat leak to warm up, quenches are induced when the flow is restored. Examples are taken from experience with the TPC magnet.
- Publication:
-
Presented at the Cryogenic Engineering Conference and International Cryogenic Materials Conference
- Pub Date:
- August 1985
- Bibcode:
- 1985cren.conf.....E
- Keywords:
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- Cooling Systems;
- Cryogenics;
- Failure Analysis;
- Magnetic Fields;
- Superconducting Magnets;
- Systems Analysis;
- Refrigerating;
- Spark Chambers;
- Two Dimensional Flow;
- Nuclear and High-Energy Physics