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Proceedings Paper

The design with the stagged loops on the entranceregion of the millar helied lines wiggler
Author(s): Jianpin Hu
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Paper Abstract

The sharp variation of wiggler entrance regionmagnetic field in result of lowering the electron beamcurrent quality is able fully to be removed by ultilizationof stagged terminal loops with carefully design, themagnetic field profile without any information generated bythis device exactly fits the desirable requirement ofadiabatic change of the field amptitute from zero touniform region value, the axial magnetic field expressionof the entrance region and the fabricating technique of thedevice have been presented in the paper, the experimentmeasurement results show a good agreement with numericalsimulation and provide a verification for rationality ofthe design techique. For another possible application, thebifilar helical wiggler with stagged loops will be expectedto operate in experiment of variable parameter FEL.

Paper Details

Date Published: 30 August 1993
PDF: 1 pages
Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21041H (30 August 1993); doi: 10.1117/12.2298485
Show Author Affiliations
Jianpin Hu, Southwest Institute of Applied Electronics (China)

Published in SPIE Proceedings Vol. 2104:
18th International Conference on Infrared and Millimeter Waves
James R. Birch; Terence J. Parker, Editor(s)

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