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91探花
Insertion of STC into TRT at the Department of Physics, 91探花
Credit: CERN

Giles Barr

Professor of Physics

Sub department

  • Particle Physics

Research groups

  • Accelerator Neutrinos
Giles.Barr@physics.ox.ac.uk
Telephone: 01865 (2)73446
Denys Wilkinson Building, room 664a
  • About
  • Publications

Measurement of the production cross-section of positive pions in p-Al collisions at 12.9-GeV/c

Nuclear Physics B 732 (2006) 1-45

Authors:

ML Apollonio, A. Cervera Villanueva, J. Panman, J.J. Gomez Cadenas

Neutrino Oscillation Effects in Soudan-2 Upward-stopping muons

Physical Review D 72 (2005) 052005 23pp

Authors:

WWM Allison, D S Ayres, G D Barr, G J Alner

Atmospheric neutrino fluxes

Nuclear Physics B - Proceedings Supplements 143:1-3 SPEC. ISS. (2005) 89-95

The mechanical and thermal design for the MICE focusing solenoid magnet system

IEEE Transactions on Applied Superconductivity 15:2 PART II (2005) 1259-1262

Authors:

SQ Yang, MA Green, G Barr, U Bravar, J Cobb, W Lau, RS Senanayake, AE White, H Witte

Abstract:

The focusing solenoids for MICE surround energy absorbers that are used to reduce the transverse momentum of the muon beam that is being cooled within MICE. The focusing solenoids will have a warm-bore diameter of 470 mm. Within this bore is a flask of liquid hydrogen or a room temperature beryllium absorber. The focusing solenoid consists of two coils wound with a copper matrix Nb-Ti conductor originally designed for MRI magnets. The two coils have separate leads, so that they may be operated at the same polarity or at opposite polarity. The focusing magnet is designed so that it can be cooled with a pair of 1.5 W (at 4.2 K) coolers. The MICE cooling channel has three focusing magnets with their absorbers. The three focusing magnets will be hooked together in series for a circuit stored-energy of about 9.0 MJ. Quench protection for the focusing magnets is discussed. This report presents the mechanical and thermal design parameters for this magnet, including the results of unite element calculations of mechanical forces and heat flow in the magnet cold mass. 漏 2005 IEEE.

The mechanical and thermal design for the MICE focusing solenoid magnet system

IEEE T APPL SUPERCON 15:2 (2005) 1259-1262

Authors:

SQ Yang, MA Green, G Barr, U Bravar, J Cobb, W Lau, RS Senanayake, AE White, H Witte

Abstract:

The focusing solenoids for MICE surround energy absorbers that are used to reduce the transverse momentum of the muon beam that is being cooled within MICE. The focusing solenoids will have a warm-bore diameter of 470 mm. Within this bore is a flask of liquid hydrogen or a room temperature beryllium absorber. The focusing solenoid consists of two coils wound with a copper matrix Nb-Ti conductor originally designed for MRI magnets. The two coils have separate leads, so that they may be operated at the same polarity or at opposite polarity. The focusing magnet is designed so that it can be cooled with a pair of 1.5 W (at 4.2 K) coolers. The MICE cooling channel has three focusing magnets with their absorbers. The three focusing magnets will be hooked together in series for a circuit stored-energy of about 9.0 MJ. Quench protection for the focusing magnets is discussed. This report presents the mechanical and thermal design parameters for this magnet, including the results of finite element calculations of mechanical forces and heat flow in the magnet cold mass.

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