Open Access System for Information Sharing

Login Library

 

Thesis
Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Suppression of Initial Energy Spreads by Transient Beam Loading Effect in Pulsed RF Linacs for Intense Electron Beam

Title
Suppression of Initial Energy Spreads by Transient Beam Loading Effect in Pulsed RF Linacs for Intense Electron Beam
Authors
김상훈
Date Issued
2012
Publisher
포항공과대학교
Abstract
For intense irradiation applications, an L-band electron linac is developed incollaboration with PAL/POSTECH and KAPRA. It is capable of producing 10-MeVand average 30-kW electron beams adopting an L-band traveling-wave acceleratingstructure. This linac is operated under the fully beam-loaded condition for powerefficiency. Under this condition, the initial energy spread becomes a maximumgenerated by the transient beam loading effect. Since irradiation sources require a beamenergy of less than 10 MeV for radiation safety, those energy spreads are suppressed inorder to maintain the beam energy at a safe level but maximize the beam power. In thisstudy, beam current modulation with RF power modulation is adopted for thesuppression method. As a result, the average beam energy and the corresponding beampower are improved by nearly 60% compared with the case without any modulations.The temporal profile of beam energy is numerically calculated from the time-dependentbeam loading relationship, and it is verified with measurement using aluminium plates.The effects of beam current modulation on the bunching and acceleration are alsodiscussed.
URI
http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000001221366
http://oasis.postech.ac.kr/handle/2014.oak/1530
Article Type
Thesis
Files in This Item:
There are no files associated with this item.

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Views & Downloads

Browse