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Analysis and control of wakefields in X-band crab cavities for Compact Linear Collider

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Analysis and control of wakefields in X-band crab cavities for Compact Linear Collider. / Ambattu, P. K.; Burt, G.; Khan, V.; Jones, R. M.; Dexter, A. C.; Dolgashev, V.

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 657, No. 1, 21.11.2011, p. 27-37.

Research output: Contribution to journalJournal article

Harvard

Ambattu, PK, Burt, G, Khan, V, Jones, RM, Dexter, AC & Dolgashev, V 2011, 'Analysis and control of wakefields in X-band crab cavities for Compact Linear Collider', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 657, no. 1, pp. 27-37. https://doi.org/10.1016/j.nima.2011.05.060

APA

Ambattu, P. K., Burt, G., Khan, V., Jones, R. M., Dexter, A. C., & Dolgashev, V. (2011). Analysis and control of wakefields in X-band crab cavities for Compact Linear Collider. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 657(1), 27-37. https://doi.org/10.1016/j.nima.2011.05.060

Vancouver

Ambattu PK, Burt G, Khan V, Jones RM, Dexter AC, Dolgashev V. Analysis and control of wakefields in X-band crab cavities for Compact Linear Collider. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 Nov 21;657(1):27-37. https://doi.org/10.1016/j.nima.2011.05.060

Author

Ambattu, P. K. ; Burt, G. ; Khan, V. ; Jones, R. M. ; Dexter, A. C. ; Dolgashev, V. / Analysis and control of wakefields in X-band crab cavities for Compact Linear Collider. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 657, No. 1. pp. 27-37.

Bibtex

@article{6889b14f03fc4e3cbed4d61c81ed804c,
title = "Analysis and control of wakefields in X-band crab cavities for Compact Linear Collider",
abstract = "The Compact Linear Collider requires a crab cavity on each beamline prior to the interaction point to rotate the bunches before collision. The cavities are X-band travelling wave type and are located close to the final doublet of the beam delivery system. This makes the beam very sensitive to transverse momentum imparted by wakefields; hence the wakefields must be tightly controlled. Of special concerns are the orthogonal polarisation of the operating mode and the fundamental monopole mode of the crab cavity. The former mode is at the same frequency as the operating mode of a cylindrically symmetric cavity and the latter one is at a lower frequency and hence is difficult to damp using a single means. In this paper major problematic modes of the crab cavity are investigated and damping requirements for them are calculated. Possibility of meeting the required wakefield control using waveguide damping and choke damping is thoroughly investigated. As a comparison, damped-detuning is also investigated.",
keywords = "X-band crab cavity, Compact Linear Collider, Wakefields, Asymmetrical choke-mode cavity , Damped–detuned cavity",
author = "Ambattu, {P. K.} and G. Burt and V. Khan and Jones, {R. M.} and Dexter, {A. C.} and V. Dolgashev",
year = "2011",
month = nov,
day = "21",
doi = "10.1016/j.nima.2011.05.060",
language = "English",
volume = "657",
pages = "27--37",
journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "ELSEVIER SCIENCE BV",
number = "1",

}

RIS

TY - JOUR

T1 - Analysis and control of wakefields in X-band crab cavities for Compact Linear Collider

AU - Ambattu, P. K.

AU - Burt, G.

AU - Khan, V.

AU - Jones, R. M.

AU - Dexter, A. C.

AU - Dolgashev, V.

PY - 2011/11/21

Y1 - 2011/11/21

N2 - The Compact Linear Collider requires a crab cavity on each beamline prior to the interaction point to rotate the bunches before collision. The cavities are X-band travelling wave type and are located close to the final doublet of the beam delivery system. This makes the beam very sensitive to transverse momentum imparted by wakefields; hence the wakefields must be tightly controlled. Of special concerns are the orthogonal polarisation of the operating mode and the fundamental monopole mode of the crab cavity. The former mode is at the same frequency as the operating mode of a cylindrically symmetric cavity and the latter one is at a lower frequency and hence is difficult to damp using a single means. In this paper major problematic modes of the crab cavity are investigated and damping requirements for them are calculated. Possibility of meeting the required wakefield control using waveguide damping and choke damping is thoroughly investigated. As a comparison, damped-detuning is also investigated.

AB - The Compact Linear Collider requires a crab cavity on each beamline prior to the interaction point to rotate the bunches before collision. The cavities are X-band travelling wave type and are located close to the final doublet of the beam delivery system. This makes the beam very sensitive to transverse momentum imparted by wakefields; hence the wakefields must be tightly controlled. Of special concerns are the orthogonal polarisation of the operating mode and the fundamental monopole mode of the crab cavity. The former mode is at the same frequency as the operating mode of a cylindrically symmetric cavity and the latter one is at a lower frequency and hence is difficult to damp using a single means. In this paper major problematic modes of the crab cavity are investigated and damping requirements for them are calculated. Possibility of meeting the required wakefield control using waveguide damping and choke damping is thoroughly investigated. As a comparison, damped-detuning is also investigated.

KW - X-band crab cavity

KW - Compact Linear Collider

KW - Wakefields

KW - Asymmetrical choke-mode cavity

KW - Damped–detuned cavity

U2 - 10.1016/j.nima.2011.05.060

DO - 10.1016/j.nima.2011.05.060

M3 - Journal article

VL - 657

SP - 27

EP - 37

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

IS - 1

ER -