T. Kotserogluo, V. Bharadwaj, J. Clendenin, S. Ecklund, J. Frisch, P. Krejcik, A. Kulikov, J. Liu, T. Maruyama, K. Millage, G. Mulhollan, W. Nelson, D. Schultz, J. Sheppard, J. Turner, K. Van Bibber, K. Flottmann, Y. Namito
{"title":"Recent developments in the design of the NLC positron source","authors":"T. Kotserogluo, V. Bharadwaj, J. Clendenin, S. Ecklund, J. Frisch, P. Krejcik, A. Kulikov, J. Liu, T. Maruyama, K. Millage, G. Mulhollan, W. Nelson, D. Schultz, J. Sheppard, J. Turner, K. Van Bibber, K. Flottmann, Y. Namito","doi":"10.1109/PAC.1999.792333","DOIUrl":null,"url":null,"abstract":"Recent developments in the design of the Next Linear Collider (NLC) positron source based on updated beam parameters are described. The unpolarized NLC positron source consists of a dedicated 6.2 GeV S-band electron accelerator, a high-Z positron production target, a capture system and an L-band positron linac. The 1998 failure of the SLC target which is currently under investigation may lead to a variation of the target design. Progress towards a polarized positron source is also presented. A moderately polarized positron beam colliding with a highly polarized electron beam results in an effective polarization large enough to explore new physics at NLC. One of the schemes towards a polarized positron source incorporates a polarized electron source, a 50 MeV electron accelerator, a thin target for positron production and a new capture system optimized for high-energy small angular divergence positrons.","PeriodicalId":20453,"journal":{"name":"Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)","volume":"47 1","pages":"3450-3452 vol.5"},"PeriodicalIF":0.0000,"publicationDate":"1999-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PAC.1999.792333","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
Recent developments in the design of the Next Linear Collider (NLC) positron source based on updated beam parameters are described. The unpolarized NLC positron source consists of a dedicated 6.2 GeV S-band electron accelerator, a high-Z positron production target, a capture system and an L-band positron linac. The 1998 failure of the SLC target which is currently under investigation may lead to a variation of the target design. Progress towards a polarized positron source is also presented. A moderately polarized positron beam colliding with a highly polarized electron beam results in an effective polarization large enough to explore new physics at NLC. One of the schemes towards a polarized positron source incorporates a polarized electron source, a 50 MeV electron accelerator, a thin target for positron production and a new capture system optimized for high-energy small angular divergence positrons.