Correct chromaticities of circular accelerators without sextupoles

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A new method of correcting chromaticities of circular accelerators is introduced. Instead of using two families of sextupoles, as the standard way to correct chromaticities, two pairs of TM(210) mode RF cavities are used. The betatron phase advances (both horizontal and vertical) between the two cavities are set to be a multiple of it, and a proper momentum compaction is required. With this method, sextupole nonlinear terms are eliminated. There are octupole terms left by this method. However, they are explicit and should be easy to compensate. An example lattice demonstrates the method. The power required for the RF cavities ... continued below

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5 p.

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Chen, Tong June 1, 1996.

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Description

A new method of correcting chromaticities of circular accelerators is introduced. Instead of using two families of sextupoles, as the standard way to correct chromaticities, two pairs of TM(210) mode RF cavities are used. The betatron phase advances (both horizontal and vertical) between the two cavities are set to be a multiple of it, and a proper momentum compaction is required. With this method, sextupole nonlinear terms are eliminated. There are octupole terms left by this method. However, they are explicit and should be easy to compensate. An example lattice demonstrates the method. The power required for the RF cavities is estimated.

Physical Description

5 p.

Notes

OSTI as DE97009063

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  • EPAC `96: 5. European particle accelerator conference, Barcelona (Spain), 10-14 Jun 1996

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  • Other: DE97009063
  • Report No.: SLAC-PUB--7195
  • Report No.: CONF-960621--
  • Grant Number: AC03-76SF00515
  • Office of Scientific & Technical Information Report Number: 621761
  • Archival Resource Key: ark:/67531/metadc691649

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  • June 1, 1996

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  • Aug. 14, 2015, 8:43 a.m.

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  • Aug. 9, 2016, 12:29 p.m.

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Chen, Tong. Correct chromaticities of circular accelerators without sextupoles, article, June 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc691649/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.