Design and measurements of a deflecting mode cavity for an RF separator

Bellantoni, L.; Edwards, H.; McAshan, M. S.; Wanzenberg, Rainer

doi:10.1109/pac.2001.986583

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…Similar cavities have been designed for use in B-factories, where this bunch rotation would allow head-on collisions with beams at a finite crossing angle [AKA92], and also as deflecting cavities for separating beams [BEL01].…”

Section: Rf Deflecting Cavitiesmentioning

confidence: 99%

Initial feasibility study of a dedicated synchrotron radiation light source for ultrafast X-ray science

Corlett¹,

DeSantis²,

Hartman³

et al. 2001

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We present an initial feasibility summary of a femtosecond synchrotron radiation x-ray source based on a flat-beam rf gun and a recirculating superconducting linac that provides beam to an array of undulators and bend magnets. Optical pulse durations of <100 fs are obtained by a combination of electron pulse compression, transverse temporal correlation of the electrons, and x-ray pulse compression. After an introduction and initial scientific motivation, we cover the following aspects of the design: layout and lattice, ultra-fast x-ray pulse production, flat electron-beam production, the rf gun, rf systems, cryogenic systems, collective effects, photon production, and synchronization of x-ray and laser pulses. We conclude with a summary of issues and areas of development that remain to be addressed.

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Section: Rf Deflecting Cavitiesmentioning

confidence: 99%

Initial feasibility study of a dedicated synchrotron radiation light source for ultrafast X-ray science

Corlett¹,

DeSantis²,

Hartman³

et al. 2001

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show abstract

“…Transverse deflecting rf structures find numerous applications in modern particle accelerators for example as particle separators [1] or fast rf deflectors [2], as a streaking device for diagnostics purposes [3], in emittance exchange beam lines [4] or as crab cavities in circular colliders as the LHC [5]. It is well known, that a beam passing through a transverse deflecting field will not only receive the desired phase dependent transverse momentum, but it will also change its energy spread due to a longitudinal electric field component which varies over the transverse size of the beam.…”

Section: Introductionmentioning

confidence: 99%

Lower limit of the transverse emittance growth in deflecting rf fields

Paramonov

Floettmann

2020

Phys. Rev. Accel. Beams

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The Panofsky-Wenzel theorem connects the transverse deflecting force in an rf structure with the existence of a longitudinal electric field component. In this paper it is shown that a transverse deflecting force is accompanied by an additional longitudinal magnetic field component which leads to an emittance growth in the direction perpendicular to the transverse force. The general description of transverse deflecting waves requires a linear combination of basis modes to cope with the boundary conditions and to support the simultaneous existence of electric and magnetic longitudinal field components. The mode description is preferably performed in the hybrid HM-HE basis to avoid convergence problems, which are fundamental for the transverse TM-TE basis.

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“…Transverse deflecting rf fields find numerous applications in modern particle accelerators for example as particle separators [1] or fast rf deflectors [2], as streaking device for diagnostics purposes [3], in emittance exchange beam lines [4] or as crab cavities in circular colliders as the LHC [5]. It is well known, that a beam passing through a transverse deflecting field will not only receive the desired phase dependent transverse momentum, but it will also change its energy spread due to a longitudinal electric field component which varies over the transverse size of the beam.…”

Section: Introductionmentioning

confidence: 99%

Fundamental characteristics of transverse deflecting field

Paramonov,

Floettmann

2018

Preprint

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The Panofsky-Wenzel theorem connects the transverse deflecting force in an rf structure with the existence of a longitudinal electric field component. In this paper it is shown that a transverse deflecting force is always accompanied by an additional longitudinal magnetic field component which leads to an emittance growth in the direction perpendicular to the transverse force. Transverse deflecting waves can thus not be described by pure TM or TE modes, but require a linear combination of basis modes for their representation. The mode description is preferably performed in the HM-HE basis to avoid converge problems, which are fundamental for the TM-TE basis.

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Design and measurements of a deflecting mode cavity for an RF separator

Cited by 5 publications

References 4 publications

Initial feasibility study of a dedicated synchrotron radiation light source for ultrafast X-ray science

Initial feasibility study of a dedicated synchrotron radiation light source for ultrafast X-ray science

Lower limit of the transverse emittance growth in deflecting rf fields

Fundamental characteristics of transverse deflecting field

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