J. Seeman, M. Biagini, Y. Cai, F. Decker, M. Donald, S. Ecklund, A. Fisher, R. Holtzapple, R. Iverson, A. Kulikov, M. Minty, A. Novokhatski, I. Reichel, M. Sullivan, J. Turner, U. Wienands, C. Steier, M. Zisman, W. Kozanecki
{"title":"PEP-II的束流相互作用测量","authors":"J. Seeman, M. Biagini, Y. Cai, F. Decker, M. Donald, S. Ecklund, A. Fisher, R. Holtzapple, R. Iverson, A. Kulikov, M. Minty, A. Novokhatski, I. Reichel, M. Sullivan, J. Turner, U. Wienands, C. Steier, M. Zisman, W. Kozanecki","doi":"10.1109/PAC.2001.987509","DOIUrl":null,"url":null,"abstract":"The beam-beam interaction is one of the performance limitations at PEP-II. The peak luminosity in PEP-II has reached 3.4 /spl times/ 10/sup 33//cm/sup 2//s with 693 bunches with a positron current of 1.6 A and an electron current of 0.84 A. The beam-beam tune shift limits have exceeded 0.06 horizontally and 0.03 vertically. A model of the luminosity with current using the measured beam sizes has been developed. Studies are underway to increase the luminosity toward 10/sup 34//cm/sup 2//s and beyond by increasing the number of bunches, raising the beam currents, lowering the betas at the interaction points, and shortening the bunch lengths.","PeriodicalId":313758,"journal":{"name":"PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Measurements of the beam-beam interaction at PEP-II\",\"authors\":\"J. Seeman, M. Biagini, Y. Cai, F. Decker, M. Donald, S. Ecklund, A. Fisher, R. Holtzapple, R. Iverson, A. Kulikov, M. Minty, A. Novokhatski, I. Reichel, M. Sullivan, J. Turner, U. Wienands, C. Steier, M. Zisman, W. Kozanecki\",\"doi\":\"10.1109/PAC.2001.987509\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The beam-beam interaction is one of the performance limitations at PEP-II. The peak luminosity in PEP-II has reached 3.4 /spl times/ 10/sup 33//cm/sup 2//s with 693 bunches with a positron current of 1.6 A and an electron current of 0.84 A. The beam-beam tune shift limits have exceeded 0.06 horizontally and 0.03 vertically. A model of the luminosity with current using the measured beam sizes has been developed. Studies are underway to increase the luminosity toward 10/sup 34//cm/sup 2//s and beyond by increasing the number of bunches, raising the beam currents, lowering the betas at the interaction points, and shortening the bunch lengths.\",\"PeriodicalId\":313758,\"journal\":{\"name\":\"PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)\",\"volume\":\"36 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PAC.2001.987509\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PAC.2001.987509","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Measurements of the beam-beam interaction at PEP-II
The beam-beam interaction is one of the performance limitations at PEP-II. The peak luminosity in PEP-II has reached 3.4 /spl times/ 10/sup 33//cm/sup 2//s with 693 bunches with a positron current of 1.6 A and an electron current of 0.84 A. The beam-beam tune shift limits have exceeded 0.06 horizontally and 0.03 vertically. A model of the luminosity with current using the measured beam sizes has been developed. Studies are underway to increase the luminosity toward 10/sup 34//cm/sup 2//s and beyond by increasing the number of bunches, raising the beam currents, lowering the betas at the interaction points, and shortening the bunch lengths.
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