Orbit correction in a linear nonscaling fixed field alternating gradient accelerator

In a linear nonscaling fixed field alternating gradient accelerator, the large natural chromaticity of the machine results in a betatron tune that varies by several integers over the momentum range. Orbit correction is complicated by the consequent variation of the phase advance between lattice elem...

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Bibliographic Details
Published inPhysical review special topics. PRST-AB. Accelerators and beams Vol. 17; no. 11; p. 112806
Main Authors Kelliher, D. J., Machida, S., Edmonds, C. S., Kirkman, I. W., Jones, J. K., Muratori, B. D., Garland, J. M., Berg, J. S.
Format Journal Article
LanguageEnglish
Published College Park American Physical Society 20.11.2014
American Physical Society (APS)
Subjects
Chromaticity
Distortion
Momentum
PARTICLE ACCELERATORS
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Summary:In a linear nonscaling fixed field alternating gradient accelerator, the large natural chromaticity of the machine results in a betatron tune that varies by several integers over the momentum range. Orbit correction is complicated by the consequent variation of the phase advance between lattice elements. Here we investigate how the correction of multiple closed orbit harmonics allows correction of both the closed orbit distortion and the accelerated orbit distortion over the momentum range.
Bibliography:USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
AC02-98CH10886
BNL-107077-2014-JA
ISSN:1098-4402
1098-4402
2469-9888
DOI:10.1103/PhysRevSTAB.17.112806