Title :
A Pulsed Beam Shutter for Radio-Frequency Separated Beams at the ZGS
Author :
Praeg, Walter F.
Author_Institution :
Argonne National Laboratory Argonne, Illinois
fDate :
6/1/1973 12:00:00 AM
Abstract :
A pulsed beam shutter magnet is required to deflect a beam of separated high energy particles into a beam stop after a desired number of particles have reached the 12-ft bubble chamber at the ZGS. The magnet has a core, wound from 2 mil grain-oriented steel, an aperture 15 cm à 15 cm, and a ¿Bdl=1kGm. The pulse has a risetime of ¿3 ¿s and a flattop of 40 ¿s. The above is achieved by discharging a high voltage capacitor bank into the magnet inductance, followed by a power-crowbar. The design of the magnet and the switching circuits is described and formulas for calculating the pulse shapes are given. Graphs of calculated flattops to 500 ¿s are shown.
Keywords :
Apertures; Capacitors; Inductance; Magnetic cores; Magnetic separation; Particle beams; Radio frequency; Steel; Voltage; Wounds;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1973.4327229