Orbit correction in a linear nonscaling fixed field alternating gradient accelerator

Journal Article · Thu Nov 20 00:00:00 EST 2014 · Physical Review Special Topics. Accelerators and Beams

DOI:https://doi.org/10.1103/PhysRevSTAB.17.112806· OSTI ID:1165943

Kelliher, D. J. ^[1]; Machida, S. ^[1]; Edmonds, C. S. ^[2]; Kirkman, I. W. ^[2]; Jones, J. K. ^[3]; Muratori, B. D. ^[3]; Garland, J. M. ^[4]; Berg, J. S. ^[5]

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1. Rutherford Appleton Lab, Oxfordshire (United Kingdom)
2. Univ. of Liverpool, Liverpool (United Kingdom); Cockcroft Institute of Accelerator Science and Technology, Warrington (United Kingdom)
3. STFC Daresbury Lab., Warrington (United Kingdom)
4. Univ. of Manchester, Manchester (United Kingdom); Cockroft Institute of Accelerator Science and Technology, Warrington (United Kingdom)
5. Brookhaven National Lab. (BNL), Upton, NY (United States)

In a linear non-scaling FFAG the large natural chromaticity of the machine results in a betatron tune that varies by several integers over the momentum range. In addition, 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 COD and the accelerated orbit distortion over the momentum range.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: AC02-98CH10886
• OSTI ID: 1165943
• Report Number(s): BNL-107077-2014-JA; PRABFM; R&D Project: KBCH139; ArticleNumber: 112806
• Journal Information: Physical Review Special Topics. Accelerators and Beams, Vol. 17, Issue 11; ISSN 1098-4402
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

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