Acceleration in the linear non-scaling fixed-field alternating-gradient accelerator EMMA

S. Machida; R. Barlow; J. S. Berg; N. Bliss; R. K. Buckley; J. A. Clarke; M. K. Craddock; R. D'Arcy; R. Edgecock; J. M. Garland; Y. Giboudot; P. Goudket; S. Griffiths; C. Hill; S. F. Hill; K. M. Hock; D. J. Holder; M. G. Ibison; F. Jackson; S. P. Jamison; C. Johnstone; J. K. Jones; L. B. Jones; A. Kalinin; E. Keil; D. J. Kelliher; I. W. Kirkman; S. Koscielniak; K. Marinov; N. Marks; B. Martlew; P. A. McIntosh; J. W. McKenzie; F. Méot; K. J. Middleman; A. Moss; B. D. Muratori; J. Orrett; H. L. Owen; J. Pasternak; K. J. Peach; M. W. Poole; Y. N. Rao; Y. Saveliev; D. J. Scott; S. L. Sheehy; B. J A Shepherd; R. Smith; S. L. Smith; D. Trbojevic; S. Tzenov; T. Weston; A. Wheelhouse; P. H. Williams; A. Wolski; T. Yokoi

doi:10.1038/nphys2179

Acceleration in the linear non-scaling fixed-field alternating-gradient accelerator EMMA

S. Machida, R. Barlow, J. S. Berg, N. Bliss, R. K. Buckley, J. A. Clarke, M. K. Craddock, R. D'Arcy, R. Edgecock, J. M. Garland, Y. Giboudot, P. Goudket, S. Griffiths, C. Hill, S. F. Hill, K. M. Hock, D. J. Holder, M. G. Ibison, F. Jackson, S. P. JamisonC. Johnstone, J. K. Jones, L. B. Jones, A. Kalinin, E. Keil, D. J. Kelliher, I. W. Kirkman, S. Koscielniak, K. Marinov, N. Marks, B. Martlew, P. A. McIntosh, J. W. McKenzie, F. Méot, K. J. Middleman, A. Moss, B. D. Muratori, J. Orrett, H. L. Owen, J. Pasternak, K. J. Peach, M. W. Poole, Y. N. Rao, Y. Saveliev, D. J. Scott, S. L. Sheehy, B. J A Shepherd, R. Smith, S. L. Smith, D. Trbojevic, S. Tzenov, T. Weston, A. Wheelhouse, P. H. Williams, A. Wolski, T. Yokoi

Research output: Contribution to journal › Article › peer-review

Abstract

In a fixed-field alternating-gradient (FFAG) accelerator, eliminating pulsed magnet operation permits rapid acceleration to synchrotron energies, but with a much higher beam-pulse repetition rate. Conceived in the 1950s, FFAGs are enjoying renewed interest, fuelled by the need to rapidly accelerate unstable muons for future high-energy physics colliders. Until now a 'scaling' principle has been applied to avoid beam blow-up and loss. Removing this restriction produces a new breed of FFAG, a non-scaling variant, allowing powerful advances in machine characteristics. We report on the first non-scaling FFAG, in which orbits are compacted to within 10 mm in radius over an electron momentum range of 12-18 MeV/c. In this strictly linear-gradient FFAG, unstable beam regions are crossed, but acceleration via a novel serpentine channel is so rapid that no significant beam disruption is observed. This result has significant implications for future particle accelerators, particularly muon and high-intensity proton accelerators. © 2012 Macmillan Publishers Limited. All rights reserved.

Original language	English
Pages (from-to)	243-247
Number of pages	4
Journal	Nature Physics
Volume	8
Issue number	3
DOIs	https://doi.org/10.1038/nphys2179
Publication status	Published - Mar 2012

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10.1038/nphys2179

Establishing the UK’s first high-energy proton therapy service at the Christie Hospital Manchester and University College London Hospital.
Hywel Owen (Participant), Robert Appleby (Participant), Ranald Mackay (Participant), Karen Kirkby (Participant) & Roger Barlow (Participant)
Impact: Health and wellbeing, Economic, Technological

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Machida, S., Barlow, R., Berg, J. S., Bliss, N., Buckley, R. K., Clarke, J. A., Craddock, M. K., D'Arcy, R., Edgecock, R., Garland, J. M., Giboudot, Y., Goudket, P., Griffiths, S., Hill, C., Hill, S. F., Hock, K. M., Holder, D. J., Ibison, M. G., Jackson, F., ... Yokoi, T. (2012). Acceleration in the linear non-scaling fixed-field alternating-gradient accelerator EMMA. Nature Physics, 8(3), 243-247. https://doi.org/10.1038/nphys2179

@article{5b7638d8889e4e72ba501b4ce9f375a0,

title = "Acceleration in the linear non-scaling fixed-field alternating-gradient accelerator EMMA",

abstract = "In a fixed-field alternating-gradient (FFAG) accelerator, eliminating pulsed magnet operation permits rapid acceleration to synchrotron energies, but with a much higher beam-pulse repetition rate. Conceived in the 1950s, FFAGs are enjoying renewed interest, fuelled by the need to rapidly accelerate unstable muons for future high-energy physics colliders. Until now a 'scaling' principle has been applied to avoid beam blow-up and loss. Removing this restriction produces a new breed of FFAG, a non-scaling variant, allowing powerful advances in machine characteristics. We report on the first non-scaling FFAG, in which orbits are compacted to within 10 mm in radius over an electron momentum range of 12-18 MeV/c. In this strictly linear-gradient FFAG, unstable beam regions are crossed, but acceleration via a novel serpentine channel is so rapid that no significant beam disruption is observed. This result has significant implications for future particle accelerators, particularly muon and high-intensity proton accelerators. {\textcopyright} 2012 Macmillan Publishers Limited. All rights reserved.",

author = "S. Machida and R. Barlow and Berg, {J. S.} and N. Bliss and Buckley, {R. K.} and Clarke, {J. A.} and Craddock, {M. K.} and R. D'Arcy and R. Edgecock and Garland, {J. M.} and Y. Giboudot and P. Goudket and S. Griffiths and C. Hill and Hill, {S. F.} and Hock, {K. M.} and Holder, {D. J.} and Ibison, {M. G.} and F. Jackson and Jamison, {S. P.} and C. Johnstone and Jones, {J. K.} and Jones, {L. B.} and A. Kalinin and E. Keil and Kelliher, {D. J.} and Kirkman, {I. W.} and S. Koscielniak and K. Marinov and N. Marks and B. Martlew and McIntosh, {P. A.} and McKenzie, {J. W.} and F. M{\'e}ot and Middleman, {K. J.} and A. Moss and Muratori, {B. D.} and J. Orrett and Owen, {H. L.} and J. Pasternak and Peach, {K. J.} and Poole, {M. W.} and Rao, {Y. N.} and Y. Saveliev and Scott, {D. J.} and Sheehy, {S. L.} and Shepherd, {B. J A} and R. Smith and Smith, {S. L.} and D. Trbojevic and S. Tzenov and T. Weston and A. Wheelhouse and Williams, {P. H.} and A. Wolski and T. Yokoi",

year = "2012",

month = mar,

doi = "10.1038/nphys2179",

language = "English",

volume = "8",

pages = "243--247",

journal = "Nature Physics",

issn = "1745-2473",

publisher = "Springer Nature",

number = "3",

}

Machida, S, Barlow, R, Berg, JS, Bliss, N, Buckley, RK, Clarke, JA, Craddock, MK, D'Arcy, R, Edgecock, R, Garland, JM, Giboudot, Y, Goudket, P, Griffiths, S, Hill, C, Hill, SF, Hock, KM, Holder, DJ, Ibison, MG, Jackson, F, Jamison, SP, Johnstone, C, Jones, JK, Jones, LB, Kalinin, A, Keil, E, Kelliher, DJ, Kirkman, IW, Koscielniak, S, Marinov, K, Marks, N, Martlew, B, McIntosh, PA, McKenzie, JW, Méot, F, Middleman, KJ, Moss, A, Muratori, BD, Orrett, J, Owen, HL, Pasternak, J, Peach, KJ, Poole, MW, Rao, YN, Saveliev, Y, Scott, DJ, Sheehy, SL, Shepherd, BJA, Smith, R, Smith, SL, Trbojevic, D, Tzenov, S, Weston, T, Wheelhouse, A, Williams, PH, Wolski, A & Yokoi, T 2012, 'Acceleration in the linear non-scaling fixed-field alternating-gradient accelerator EMMA', Nature Physics, vol. 8, no. 3, pp. 243-247. https://doi.org/10.1038/nphys2179

TY - JOUR

T1 - Acceleration in the linear non-scaling fixed-field alternating-gradient accelerator EMMA

AU - Machida, S.

AU - Barlow, R.

AU - Berg, J. S.

AU - Bliss, N.

AU - Buckley, R. K.

AU - Clarke, J. A.

AU - Craddock, M. K.

AU - D'Arcy, R.

AU - Edgecock, R.

AU - Garland, J. M.

AU - Giboudot, Y.

AU - Goudket, P.

AU - Griffiths, S.

AU - Hill, C.

AU - Hill, S. F.

AU - Hock, K. M.

AU - Holder, D. J.

AU - Ibison, M. G.

AU - Jackson, F.

AU - Jamison, S. P.

AU - Johnstone, C.

AU - Jones, J. K.

AU - Jones, L. B.

AU - Kalinin, A.

AU - Keil, E.

AU - Kelliher, D. J.

AU - Kirkman, I. W.

AU - Koscielniak, S.

AU - Marinov, K.

AU - Marks, N.

AU - Martlew, B.

AU - McIntosh, P. A.

AU - McKenzie, J. W.

AU - Méot, F.

AU - Middleman, K. J.

AU - Moss, A.

AU - Muratori, B. D.

AU - Orrett, J.

AU - Owen, H. L.

AU - Pasternak, J.

AU - Peach, K. J.

AU - Poole, M. W.

AU - Rao, Y. N.

AU - Saveliev, Y.

AU - Scott, D. J.

AU - Sheehy, S. L.

AU - Shepherd, B. J A

AU - Smith, R.

AU - Smith, S. L.

AU - Trbojevic, D.

AU - Tzenov, S.

AU - Weston, T.

AU - Wheelhouse, A.

AU - Williams, P. H.

AU - Wolski, A.

AU - Yokoi, T.

PY - 2012/3

Y1 - 2012/3

N2 - In a fixed-field alternating-gradient (FFAG) accelerator, eliminating pulsed magnet operation permits rapid acceleration to synchrotron energies, but with a much higher beam-pulse repetition rate. Conceived in the 1950s, FFAGs are enjoying renewed interest, fuelled by the need to rapidly accelerate unstable muons for future high-energy physics colliders. Until now a 'scaling' principle has been applied to avoid beam blow-up and loss. Removing this restriction produces a new breed of FFAG, a non-scaling variant, allowing powerful advances in machine characteristics. We report on the first non-scaling FFAG, in which orbits are compacted to within 10 mm in radius over an electron momentum range of 12-18 MeV/c. In this strictly linear-gradient FFAG, unstable beam regions are crossed, but acceleration via a novel serpentine channel is so rapid that no significant beam disruption is observed. This result has significant implications for future particle accelerators, particularly muon and high-intensity proton accelerators. © 2012 Macmillan Publishers Limited. All rights reserved.

AB - In a fixed-field alternating-gradient (FFAG) accelerator, eliminating pulsed magnet operation permits rapid acceleration to synchrotron energies, but with a much higher beam-pulse repetition rate. Conceived in the 1950s, FFAGs are enjoying renewed interest, fuelled by the need to rapidly accelerate unstable muons for future high-energy physics colliders. Until now a 'scaling' principle has been applied to avoid beam blow-up and loss. Removing this restriction produces a new breed of FFAG, a non-scaling variant, allowing powerful advances in machine characteristics. We report on the first non-scaling FFAG, in which orbits are compacted to within 10 mm in radius over an electron momentum range of 12-18 MeV/c. In this strictly linear-gradient FFAG, unstable beam regions are crossed, but acceleration via a novel serpentine channel is so rapid that no significant beam disruption is observed. This result has significant implications for future particle accelerators, particularly muon and high-intensity proton accelerators. © 2012 Macmillan Publishers Limited. All rights reserved.

U2 - 10.1038/nphys2179

DO - 10.1038/nphys2179

M3 - Article

VL - 8

SP - 243

EP - 247

JO - Nature Physics

JF - Nature Physics

SN - 1745-2473

IS - 3

ER -

Acceleration in the linear non-scaling fixed-field alternating-gradient accelerator EMMA

Abstract

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Impacts

Establishing the UK’s first high-energy proton therapy service at the Christie Hospital Manchester and University College London Hospital.

Cite this