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Title: AGS tune jump power supply design and test

A horizontal tune jump system has been installed to overcome the horizontal intrinsic spin resonances, which requires jumping the horizontal tune 0.04 units 82 times, 41 up and 41 down. Two quadruple magnets have been installed in AGS ring to perform this. The pulsed magnet current ranges from about 140A near injection to about 1400A later. The current pulse rise and fall time are around 100uS and flat tops time is around 4mS. These quadruples have separated supplies. This tune jump pulse power supply employees all semiconductor parts as well as the main switches. During dummy load and magnet testing, the test results showed that the power supply could meet the specification. This article will describe some details of power supply simulation, design and testing. Some test waveforms and pictures are presented in this paper.
Authors:
; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
1012587
Report Number(s):
BNL-94141-2011-CP
R&D Project: KBCH139; 18037; KB0202011; TRN: US1102329
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: 2011 Particle Accelerator Conference (PAC'11); New York, NY; 20110328 through 20110401
Research Org:
Brookhaven National Laboratory (BNL) Alternating Gradient Synchrotron
Sponsoring Org:
DOE - Office Of Science
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; AVAILABILITY; DESIGN; MAGNETS; PERSONNEL; SIMULATION; SPIN; SWITCHES; TESTING; WAVE FORMS; alternating gradient synchrotron