Perturbation-minimized triangular bunch for high-transformer ratio using a double dogleg emittance exchange beam line
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- Title
- Perturbation-minimized triangular bunch for high-transformer ratio using a double dogleg emittance exchange beam line
- Authors
- Ha, G; Cho, M.H; Gai, W; Kim, K.-J; Namkung, W; Power, J.G.
- Date Issued
- 2016-12-16
- Publisher
- AMER PHYSICAL SOC
- Abstract
- The longitudinal shape, i.e., the current profile, of an electron bunch determines the transformer ratio in a collinear wakefield accelerator and thus methods are sought to control the longitudinal bunch shape. The emittance exchange (EEX) appears to be promising for creating a precisely controlled longitudinal bunch shapes. The longitudinal shape is perturbed by two sources: higher-order terms in the beam line optics and collective effects and these perturbations can lead to a significant drop of the transformer ratio. In this paper, we analytically and numerically investigate the perturbation to an ideal triangular longitudinal bunch shape and propose methods to minimize it.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/36645
- DOI
- 10.1103/PHYSREVACCELBEAMS.19.121301
- ISSN
- 2469-9888
- Article Type
- Article
- Citation
- Physical Review Accelerators and Beams, vol. 19, no. 12, page. 121301-01 - 121301-21, 2016-12-16
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