CERN Proton Synchrotron booster space charge simulations with a realistic model for alignment and field errorsn1

Forte, Vincenzo; Benedetto, Elena; McAteer, Meghan

doi:10.1103/physrevaccelbeams.19.124202

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…For example, in HEPS the rms horizontal β-beating should be kept below 1.5% [142]. Developments in other disciplines like collective effects such as impedance, space charge and Touschek leading to particle loss also require improving the measurement and control of linear optics [48,[143][144][145][146][147].…”

Section: Discussionmentioning

confidence: 99%

Review of linear optics measurement and correction for charged particle accelerators

Tomás

Aiba

Franchi

et al. 2017

Phys. Rev. Accel. Beams

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Measurement and correction of charged particle beam optics have been a major concern since the advent of strong focusing synchrotron accelerators. Traditionally, particle colliders have led the development of optics control based on turn-by-turn beam centroid measurements, while lepton storage rings have focused on closed-orbit-response matrix techniques. Recently, considerable efforts are being invested in comparing these techniques at different synchrotron radiation sources and colliders. An emerging class of less invasive techniques based on the optimization of performance-related observables is demonstrating a great potential. In this paper, a review of existing techniques is presented highlighting comparisons, relative merits and limitations.

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Section: Discussionmentioning

confidence: 99%

Review of linear optics measurement and correction for charged particle accelerators

Tomás

Aiba

Franchi

et al. 2017

Phys. Rev. Accel. Beams

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“…and the derivation and related discussion can be found in [14][15][16][19][20][21]. For the working points chosen in the experiment the distances of the resonance Δ r0 are reported in Table I.…”

Section: Jinst 15 P07021mentioning

confidence: 99%

“…As the vertical half integer resonance at 2Q y = 9 is one of the main drivers for losses in the PSB for high intensity beams, a dedicated benchmarking experiment was performed at injection -4 -energy [20]. The beam loss evolution over about 200 ms was studied on a constant energy plateau for a working point slightly above Q y = 4.5 without half integer resonance correction.…”

Section: Half Integer Resonance At the Cern Psbmentioning

confidence: 99%

Space charge induced losses in the CERN injector complex

et al. 2020

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Space charge effects in high intensity and high brightness synchrotrons can lead to undesired beam emittance growth, beam halo formation and particle loss. A series of dedicated machine experiments has been performed over the past decade in order to study these effects in the particular regime of long-term beam storage as required for certain applications. This paper gives an overview of the present understanding of the underlying beam dynamics mechanisms, with particular emphasis on space charge induced losses and the experience gained at the CERN injector complex. The focus is on the space charge induced periodic resonance crossing, which has been identified as the main mechanism causing beam degradation for long storage times. Examples of space charge driven and error driven resonances are presented, including possible mitigation strategies. Furthermore, an outlook for possible future directions of studies is presented.

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