{"title":"PEP-II bunch-by-bunch current monitor","authors":"M. Chin, J. Hinkson","doi":"10.1109/PAC.1997.751167","DOIUrl":null,"url":null,"abstract":"PEP-II is an asymmetric B-Factory that will have 2200 meter rings storing 9 GeV electrons and 3.1 GeV positrons, each with as many as 3492 beam bunches. To minimize beam-beam instabilities it is important to have equal bunch charge in each ring. This is accomplished by measuring the relative bunch charge and controlling injection timing and intensity. Because there may be a variety of bunch patterns, the bunch monitors are designed to measure beam in every possible bucket. Results of bunch amplitude measurements with resolution of >9 bits are available to the injection control system at rates up to 66 Hz. The bunch monitor hardware consists of beam pickups, front end filter/combiners, 1428 MHz down-converters, 1 GHz video detectors, and two VXI systems. In this paper we report on the bunch monitor design.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PAC.1997.751167","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
PEP-II is an asymmetric B-Factory that will have 2200 meter rings storing 9 GeV electrons and 3.1 GeV positrons, each with as many as 3492 beam bunches. To minimize beam-beam instabilities it is important to have equal bunch charge in each ring. This is accomplished by measuring the relative bunch charge and controlling injection timing and intensity. Because there may be a variety of bunch patterns, the bunch monitors are designed to measure beam in every possible bucket. Results of bunch amplitude measurements with resolution of >9 bits are available to the injection control system at rates up to 66 Hz. The bunch monitor hardware consists of beam pickups, front end filter/combiners, 1428 MHz down-converters, 1 GHz video detectors, and two VXI systems. In this paper we report on the bunch monitor design.
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