Minimization of transverse beam emittance growth in the 90-degree bending section of RAON rare-isotope accelerator
SCIE
SCOPUS
KCI
- Title
- Minimization of transverse beam emittance growth in the 90-degree bending section of RAON rare-isotope accelerator
- Authors
- 오봉훈; Yoon, M.
- Date Issued
- 2016-11
- Publisher
- KPS
- Abstract
- The major contribution of the transverse beam emittance growth (EG) in a RAON heavy-ion accelerator comes from the bending section, which consists of a charge-stripping section, a matching section, and a charge-selection section in sequence. In this paper, we describe our research to minimize the two-dimensional EG in the 90-degree bending section of the RAON currently being developed in Korea. The EG minimization was achieved with the help of multi-objective genetic algorithms and the simplex method. We utilized those algorithms to analyze the 90-degree bending section in a driver linac for the in-flight fragmentation system. Horizontal and vertical EGs were limited to below 10 % in the bending section by adjustment of the transverse beam optics upstream from the charge-stripping section, redesign of the charge-selection section, and optimization of the vertical beam optics at the entrance of a charge-selection section.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/38137
- DOI
- 10.3938/JKPS.69.1523
- ISSN
- 0374-4884
- Article Type
- Article
- Citation
- Journal of Korean Physical Society, vol. 69, no. 10, page. 1523 - 1530, 2016-11
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