학술논문
Model studies on the ELFA wiggler
Document Type
Periodical
Source
IEEE Transactions on Magnetics IEEE Trans. Magn. Magnetics, IEEE Transactions on. 28(1):605-608 Jan, 1992
Subject
Language
ISSN
0018-9464
1941-0069
1941-0069
Abstract
A wiggler for the ELFA high-gain single-pass Compton FEL (free-electron laser) is under study. The preliminary design of the wiggler ( lambda /sub w/=12 cm, B/sub w/=3.6 kG, total length L=6-7 m) has shown the need for model studies in order to optimize the pole and the coil geometry. The main characteristics of an electromagnet model and the high-precision apparatus for magnetic measurements are described. The results of the model field measurement are presented and discussed. The data are also compared with theoretical predictions, based on 2-D codes and simple analytical models. The first set of measurements made on the model has shown good agreement with the main design goals. Peak field level, field waveform in the midplane, and transverse field pattern seem to be satisfactory.ETX