Two-Channel Rectangular Dielectric Wake Field Accelerator Structure Experiment

Sotnikov, G. V.; Marshall, T. C.; Shchelkunov, Sergey V.; Didenko, A. N.; Hirshfield, J. L.

doi:10.1063/1.3080943

Cited by 10 publications

(19 citation statements)

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“…For each delay, multiple shots were recorded on the spectrometer screen; typical information obtained on each shot include the energy gain/loss received by electrons and the horizontal deflection (kick) received by electrons. The changes in energy are read by taking a sum of projections of the image vertical slices on the screen; the changes in the horizontal position are read by taking a sum of projections of the image horizontal slices on the screen [16,18]. Every time, the background level is subtracted, and for convenience the resulting distributions are normalized to have their maxima equal to unity.…”

Section: Experimental Results Vs Model Predictions: Changes In Bumentioning

confidence: 99%

“…A more promising choice for accelerator application should be a coaxial structure where symmetry can cure this unwanted deflection [12,15]. The rectangular version-studied [14,[16][17][18] and developed [14,16] by our group-nonetheless delivers a useful example that is very well suited to check theory and our understanding of how wakefields in a two-channel structure manifest themselves.…”

Section: Discussionmentioning

confidence: 99%

“…Also, we point out that the device may find application as a fast ''kicker'' [17]. Table I shows the design parameters of the two-channel dielectric-lined wakefield accelerator module, as settled upon through numerical studies [16,18] using the analytical theory [28,29] and the CST STUDIO code. For the numerical calculations that used the analytical theory we developed codes compiled by Intel Visual Fortran (IVF).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of experimental tests and theory for a rectangular two-channel dielectric wakefield accelerator structure

Shchelkunov

Marshall²,

Sotnikov

et al. 2012

Phys. Rev. ST Accel. Beams

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Experimental results are reported for test beam acceleration and deflection in a two-channel, cm-scale, rectangular dielectric-lined wakefield accelerator structure energized by a 14-MeV drive beam. The dominant waveguide mode of the structure is at $30 GHz, and the structure is configured to exhibit a high transformer ratio ($12:1). Accelerated bunches in the narrow secondary channel of the structure are continuously energized via Cherenkov radiation that is emitted by a drive bunch moving in the wider primary channel. Observed energy gains and losses, transverse deflections, and changes in the test bunch charge distribution compare favorably with predictions of theory.

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Section: Experimental Results Vs Model Predictions: Changes In Bumentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of experimental tests and theory for a rectangular two-channel dielectric wakefield accelerator structure

Shchelkunov

Marshall²,

Sotnikov

et al. 2012

Phys. Rev. ST Accel. Beams

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“…The other way is to use multilayered dielectric structures with spaced vacuum channels for the exciting and accelerated bunches [9]. In the multizone accelerating structure the transform ratio can be controlled by varying the drive and accelerating channel widths [10]. In the multizone structure it is also possible to make the mode having a symmetrical distribution of axial electric field in vacuum channels act as an operating mode.…”

Section: Introductionmentioning

confidence: 99%

“…The previous theoretical investigations on wakefield excitation in multizone dielectric structures have been carried out for longitudinally unbounded structures [10]. Practicable accelerating structures are bounded in the travel direction of exciting and accelerated bunches.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear theory of wakefield excitation in a rectangular multizone dielectric resonator

Galaydych

Sotnikov

2011

Phys. Rev. ST Accel. Beams

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A nonlinear self-consistent theory has been constructed and used to investigate numerically the wakefield excitation in multilayered dielectric resonators by relativistic electron bunches. Analytical expressions for solenoidal and potential components of an excited electromagnetic field have been derived. The excitation of a five-zone dielectric resonator by relativistic electron bunches was numerically investigated and comparison was made between the longitudinal distribution of an axial electric field and the results obtained previously for a corresponding problem in the waveguide formulation. The necessity of optimizing geometrical parameters of the resonator to reduce mode amplitudes nonresonant with a bunch, and to obtain a symmetric distribution of the longitudinal electric field component in the drive and accelerating channels, has been demonstrated.

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Two Channel Dielectric-Lined Rectangular High Transformer Ratio Accelerator Structure Experiment

Shchelkunov¹,

Hirshfield²,

LaPointe³

et al. 2010

AIP Conference Proceedings

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Two-Channel Rectangular Dielectric Wake Field Accelerator Structure Experiment

Cited by 10 publications

References 0 publications

Comparison of experimental tests and theory for a rectangular two-channel dielectric wakefield accelerator structure

Comparison of experimental tests and theory for a rectangular two-channel dielectric wakefield accelerator structure

Nonlinear theory of wakefield excitation in a rectangular multizone dielectric resonator

Two Channel Dielectric-Lined Rectangular High Transformer Ratio Accelerator Structure Experiment

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