Improvement of the dynamic characteristics in superconducting magnets for compact storage rings

Author

Yamada, K. ; Nakajima, M. ; Hosokawa, T.

Author_Institution

NTT LSI Labs., Atsugi, Japan

Volume

41

Issue

1

fYear

1994

fDate

2/1/1994 12:00:00 AM

Firstpage

369

Lastpage

374

Abstract

Two methods are proposed for effectively reducing the difference in dynamic characteristics among superconducting magnets for particle accelerators. The basic principle can be derived from the results of a dynamic analysis. Equalization of the voltage of magnets, not the current, leads to reduction of the field difference. The first method, the passive method, requires only the connection of an adequate value of resistance parallel to the magnet. The second is the active method which uses a compensation power supply. The passive method is applied to our machine and the 20% field deviation during acceleration is reduced to 0.5%; 1/40 of the uncorrected value

Keywords

beam handling equipment; electron accelerators; storage rings; superconducting magnets; voltage control; Super-ALIS; active method; compact storage rings; compensation power supply; dynamic characteristics; field difference; particle accelerators; passive method; superconducting magnets; voltage equalization; Acceleration; Accelerator magnets; Magnetic analysis; Magnetic materials; Optical beams; Power supplies; Storage rings; Superconducting coils; Superconducting magnets; Temperature;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.281526

Filename

281526