A LARGE HIGH CURRENT DENSITY SUPERCONDUCTING SOLENOID FOR THE TIME PROJECTION CHAMBER EXPERIMENT
M.A. Green · University of North Texas Digital Library (University of North Texas) · 2011
One of the experiments for the PEP storage rings at the Stanford Linear Accelerator Center uses a superconducting magnet to provide the magnetic field for the Time Projection Chamber detector.This magnet has an inside diameter of 2.04 m and a gap of 3.26 m.The magnet central induction is 1.5T.This magnetic induction is supplied by a thin high current density superconducting coil which is less than 0.4 radiation lengths thick.The magnet stored energy will be 10.9 MJ1 the coil superconductor matrix current density will be about 7.0 x 10 8 Am-2 • The TPC magnet uses a two-phase forced flow tubular cooling system which combines many of the advantages of single-phase supercritical helium cooling with those of boiling helium bath cooling.