In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 50, No. 11R ( 2011-11-01), p. 116001-
Abstract:
RF linacs for high-power beams are operated under the fully beam-loaded condition for power efficiency. Under this condition, initial energy spreads are generated by the transient beam-loading effect. Irradiation sources require a beam energy of less than 10 MeV for radiation safety. In order to maximize the beam power and maintain the beam energy at a safe level, we need to suppress the initial energy spreads. In an L-band traveling-wave linac for irradiation applications, the initial high-energy electrons are suppressed by beam current modulation with RF power modulation. In this study, the temporal profile of beam energy is calculated by a numerical method and verified by measurement. As a result, the average beam energy and the corresponding beam power are improved by nearly 60% compared with the case without any modulations. The effect of beam current modulation on bunching and acceleration is also discussed in this paper.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.50.116001
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2011
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
Permalink