CERN Accelerating science

Article
Title	AC Power Supply for Wobbler Magnet of the MC-50 Cyclotron
Author(s)	Kim, Yu-Seok ; Chai, Jong-Seo ; Kang, Bong-Koo ; Lee, Hong-Gi ; Park, Ki-Hyeon ; Wha Chung, Chin ; Woo Lee, Wol
Affiliation	(KIRAMS, Seoul) ; (PAL, Pohang) ; (POSTECH, Pohang)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3576
Subject category	Accelerators and Storage Rings
Abstract	The MC-50 cyclotron (k=50) produces the ion beam for nuclear physics, chemistry, and applied researches in Korea. It has a small beam diameter with Gaussian beam shape, whereas many users want a beam irradiation on a large target. A wobbler magnet and an AC power supply were designed and constructed to meet the users' requirement. The power supply has two independently operating channels for the vertical and horizontal coils of the wobbler magnet. The frequency of the AC power supply for both coils is programmable from 1 to 20 Hz in a step of 1 Hz, and the maximum rms output current is 12 A. Various properties of the power supply and experimental results are given in the paper.