Dynamic error field analysis for compact synchrotron

Author

Uesaka, M. ; Takahashi, M. ; Ida, M. ; Marushita, M. ; Mandai, S. ; Hoshi, Y.

Author_Institution

Ishikawajima-Harima Heavy Ind. Co. Ltd., Tokyo, Japan

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

1003

Lastpage

1006

Abstract

Dynamic error fields due to eddy currents induced in vacuum chambers which are located in bending and quadrupole magnets of the compact synchrotron LUNA during acceleration are numerically analyzed by INCANET. The closed-orbit distortion (COD) and tune shift for one-second acceleration from 45 MeV to 300 MeV have been quantitatively evaluated and it has been found that those values are of significance for the operation. Finally, the relation between the maximum COD, the tune-shift, and the speed of the rising magnetic fields has been obtained. Several subroutines were added to INCANET in order to evaluate the effects of eddy currents on the orbit electron beams in a synchrotron

Keywords

eddy currents; electron accelerators; particle beam diagnostics; synchrotrons; INCANET; LUNA; bending magnets; closed-orbit distortion; compact synchrotron; dynamic error fields; eddy currents; orbit electron beams; quadrupole magnets; rising magnetic fields; tune shift; vacuum chambers; Acceleration; Eddy currents; Electron beams; Error analysis; Large scale integration; Magnetic analysis; Particle beams; Production; Synchrotrons; X-ray lithography;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106489

Filename

106489