Cryogenic testing of the TPC superconducting solenoid
Abstract
This report describes the results of a series of tests on the TPC superconducting magnet cryogenic system which occurred during the winter and spring of 1983. The tests occurred at interaction region 2 of the PEP colliding beam facility at the Stanford Linear Accelerator Center (SLAC). The TPC Magnet Cryogenic System which was tested includes the following major components: a remote helium compressor with a full flow liquid nitrogen purification station, 400 meters of high pressure supply and low pressure return lines; and locally a CTi Model 2800 refrigerator with two Sulzer gas bearing turbines, the TPC magnet control dewar, 70 meters of transfer lines, and the TPC thin superconducting solenoid magnet. In addition, there is a conditioner (liquid nitrogen heat exchangers and gas heaters) system for cooldown and warmup of the magnet. This report describes the local cryogenic system and describes the various steps in the cooldown and operation of the TPC magnet. The tests were successful in that they showed that the TPC magnet could be cooled down in 24 hours and the magnet could be operated on the refrigerator or a helium pump with adequate cooling margin.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1983
- Bibcode:
- 1983STIN...8413467G
- Keywords:
-
- Cryogenics;
- Heat Measurement;
- Solenoids;
- Superconducting Magnets;
- Calorimeters;
- Gas Pressure;
- Helium;
- Linear Accelerators;
- Nitrogen;
- Performance Tests;
- Electronics and Electrical Engineering