Title :
Zeus thin solenoid: test results analysis
Author :
Oliva, A. Bonito ; Dormicchi, O. ; Losasso, M. ; Lin, Q.
Author_Institution :
Ansaldo ABB Componenti, Genova, Italy
fDate :
3/1/1991 12:00:00 AM
Abstract :
The thin solenoid for the Zeus detector has been installed and tested in HERA (Hadron Electron Ring Accelerator) at DESY. The coil reached the design magnetic field (1.8 T in the center) without training. During the test some measurements were made in order to investigate the cooling system and the quench-back behavior. No spontaneous quenches occurred. Several induced fast discharges showed the evidence of a quench-back effect, and the quench-back starting time was less than 1 s. The cylinder temperature measurements during the coil discharge perfectly agree with adiabatic calculations. The indirect cooling efficiency was verified for the two-layer winding. The tests performed showed that the magnet can operate safely at the nominal field
Keywords :
beam handling equipment; calorimeters; electron ring accelerators; scintillation counters; storage rings; superconducting magnets; 1.8 T; HERA; Zeus thin solenoid; cooling system; design magnetic field; indirect cooling efficiency; induced fast discharges; quench-back behavior; superconducting solenoid; two-layer winding; Coils; Cooling; Detectors; Electron accelerators; Life estimation; Magnetic analysis; Magnetic field measurement; Solenoids; System testing; Temperature measurement;
Journal_Title :
Magnetics, IEEE Transactions on
