Cryogenic performance of a superconducting magnet system for the J-PARC neutrino beam line
Apr 23, 2010
11 pages
Part of Proceedings, Transactions of the Cryogenic Engineering Conference (CEC 2009) : Tucson, Arizona, June 28 - July 2, 2009, 539-549
Published in:
- AIP Conf.Proc. 1218 (2010) 1, 539-549
Contribution to:
- , 539-549
- CEC/ICMC 2009
- Published: Apr 23, 2010
DOI:
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Abstract: (AIP)
A neutrino experiment facility using the J-PARC proton beam has been constructed at Tokai campus of KEK. In this project, a 150 m superconducting magnet system is installed in an arc section of the primary proton beam line. The magnet system consis ts of 28 superconducting mag-nets. The cold mass of a magnet is 6 tons. The refrigerator and the magnets are connected by a transfer tube with the total length of 90 m. Forced flow supercritical Helium with the mass flow rate of 300 g/sec, the inlet tempe rature of 4.5 K and inlet pressure of 400 kPa is supplied to the magnets through the transfer tube. A pair of superconducting busbars are also installed in the transfer tube. Total cold mass of the magnet system including the transfer tube and other instr uments is about 204 tons. This paper describes the cryogenic performance of the superconducting magnet system.- 47.85.Np
- 07.20.Mc
- 47.80.Cb
- 84.71.Ba
- cryogenics
- superconducting magnets
- flow measurement
- fluid mechanics
- Magnets
- Superconducting magnets
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