Beam dynamics studies for transverse electromagnetic mode type rf deflectors

Ahmed, S.; Krafft, Geoffrey; Deitrick, Kirsten; Silva, Subashini U. De; Delayen, Jean; Spata, M.; Tiefenback, Michael; Hofler, Alicia; Beard, K.

doi:10.1103/physrevstab.15.022001

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…After propagating the collimated beam in dedicated insertions, its horizontal, vertical, and longitudinal parameters can be measured with standard diagnostics. This is a much more compact and cheaper solution than the commonly used rf deflectors [9,10]. When the accelerator is set for beam production, the collimated beam can be used for the generation of femtosecond soft x-ray FEL pulses with tunable duration, either from a self-amplified spontaneous emission (SASE) FEL [11,12], or from an externally seeded FEL [13][14][15][16][17][18].…”

Section: Electron Slicing With a Collimatormentioning

confidence: 99%

Electron slicing for the generation of tunable femtosecond soft x-ray pulses from a free electron laser and slice diagnostics

Mitri

Castronovo

Cudin

et al. 2013

Phys. Rev. ST Accel. Beams

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We present the experimental results of femtosecond slicing an ultrarelativistic, high brightness electron beam with a collimator. In contrast to some qualitative considerations reported in Phys. Rev. Lett. 92, 074801 (2004), we first demonstrate that the collimation process preserves the slice beam quality, in agreement with our theoretical expectations, and that the collimation is compatible with the operation of a linear accelerator in terms of beam transport, radiation dose, and collimator heating. Accordingly, the collimated beam can be used for the generation of stable femtosecond soft x-ray pulses of tunable duration, from either a self-amplified spontaneous emission or an externally seeded free electron laser. The proposed method also turns out to be a more compact and cheaper solution for electron slice diagnostics than the commonly used radio frequency deflecting cavities and has minimal impact on the machine design.

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Section: Electron Slicing With a Collimatormentioning

confidence: 99%

Electron slicing for the generation of tunable femtosecond soft x-ray pulses from a free electron laser and slice diagnostics

Mitri

Castronovo

Cudin

et al. 2013

Phys. Rev. ST Accel. Beams

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“…This work is a continuation of the previous work on the design of the crabbing scheme for JLEIC [40,41]. A local crabbing scheme involves the use of crab cavities at both sides of the IR.…”

Section: Jleic Crab Crossing Schemementioning

confidence: 91%

“…The quality factor of an SRF cavity is inversely proportional to the surface resistance R s of the metal, which follows from Eq. (40). The surface resistance quantifies the amount of rf power being dissipated in the surface of the cavity.…”

Section: Superconducting Rfmentioning

confidence: 99%

Crab cavity requirements for the Jefferson Lab Electron-Ion Collider

Güitrón

2018

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An Electron-Ion Collider (EIC) has been proposed to be the next large facility to explore the dynamics of quarks and gluons inside nuclei. A conceptual design for a Jefferson Lab Electron-Ion Collider (JLEIC) is being developed. It is based on the CEBAF 12 GeV machine as a full energy electron beam injector. Two crucial requirements of JLEIC are high luminosity in the 10 34 cm −2 s −1 range, and full acceptance detection of particles. The full acceptance requirement relies on having the beams collide at a relatively large crossing angle of 50 mrad. Such a large crossing angle, however, can reduce the luminosity by as much as an order of magnitude. One way to compensate for geometric luminosity loss due to the beam crossing angle is using crab cavities. Crab cavities are superconducting radio-frequency structures optimized to produce a transverse force that "tilts" the beam bunches in such a way that a head-on collision is restored at the collision point, thus restoring the luminosity. A second set of crab cavities is placed downstream of the collision point and is used to cancel the initial bunch tilt, ideally suppressing any crab-induced effects anywhere else in the rings. in this project, and specially for his patience and financial support during my time at CAS.

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Superconducting Radio-Frequency Systems for High-β Particle Accelerators

Belomestnykh

2012

Rev. Accl. Sci. Tech.

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This article addresses the physics and engineering of the superconducting radio-frequency systems for high-β particle accelerators. I consider different geometries for cavities, discuss criteria for optimization, and options for higher-order mode damping. In reviewing recent progress in the field, SRF systems are classified according to the functions they perform. These systems are fundamental RF accelerating systems, deflecting/crab cavities, harmonic RF systems, and SRF photoemission electron guns.

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Beam dynamics studies for transverse electromagnetic mode type rf deflectors

Cited by 3 publications

References 6 publications

Electron slicing for the generation of tunable femtosecond soft x-ray pulses from a free electron laser and slice diagnostics

Electron slicing for the generation of tunable femtosecond soft x-ray pulses from a free electron laser and slice diagnostics

Crab cavity requirements for the Jefferson Lab Electron-Ion Collider

Superconducting Radio-Frequency Systems for High-β Particle Accelerators

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