CLIC Test Facility developments and results

Bossart, R.; Braun, Hans-Heinrich; Chautard, F.; Comunian, M.; Delahaye, J P; Godot, J.C.; Kamber, I.; Madsen, Jes; Rinolfi, L.; Schreiber, S.; Suberlucq, G.; Wilson, I.; Wuensch, Walter

doi:10.1109/pac.1995.504769

Cited by 6 publications

(7 citation statements)

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“…[7][8][9] Due to the Child-Langmuir space-charge limit, these applications require high-acceleration fields in order to generate proposed high-density beam currents in the order of ϳ10 3 A / cm 2 . [10][11][12][13] Laser pulses irradiating metallic and semiconductor cathodes [14][15][16][17] or FEAs 18,19 are commonly used to generate ultrafast electron bunches. However, fast electron bunches generated by using electrical gate pulses could have beneficial applications for vacuum electronic devices used from radio-frequency ͑rf͒ [20][21][22][23][24][25] to terahertz frequencies [7][8][9] and flash x-ray tubes.…”

Section: Introductionmentioning

confidence: 99%

Nanosecond pulsed field emission from single-gate metallic field emitter arrays fabricated by molding

Tsujino¹,

Paraliev²,

Kirk³

et al. 2011

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

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Electrically gated pulsed field emission from molybdenum field emitter arrays was studied. Single-gate field emitter array devices supported by metallic substrates were fabricated by a combination of molding and a self-aligned gate process. Devices were tested in a low-inductance cathode holder compatible with the high-acceleration electric field of a pulsed diode gun. Pulsed field emission down to 1.1 ns was observed for single-gate devices with 1.2ϫ 10 3 -1.2ϫ 10 5 emitter tips with 5 m array pitches. Integrating the field emitter arrays in a high-voltage pulsed diode gun, the authors demonstrated nanosecond field emission at an acceleration field of 30 MV/m at the cathode surface and acceleration of the field emission electron beam up to 300 keV. In addition, transverse beam emittance of the single-gate devices was measured with two different array sizes.

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Section: Introductionmentioning

confidence: 99%

Nanosecond pulsed field emission from single-gate metallic field emitter arrays fabricated by molding

Tsujino¹,

Paraliev²,

Kirk³

et al. 2011

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

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“…In the CLIC injector complex [2], one train of 1 to 10 bunches is injected and extracted at a repetition rate, f r from 1210 to 2400, but a number of trains k , are concurrently circulating in the damping ring in order to leave a larger time for damping T k f r = . The present design is based on trains of 10 bunches, spaced by 20 cm, at a repetition frequency f r of 1800 Hz.…”

Section: Bending Field and Design Energymentioning

confidence: 99%

“…A main damping ring based on this approach is then derived providing beam characteristics fulfilling, without any wigglers, the 500 GeV/c CLIC injector complex requirements [2]. The corresponding parameter list for this damping ring is summarised in Table 1.…”

Section: Introductionmentioning

confidence: 99%

A low emittance lattice for the CLIC damping ring

Potier

Rivkin

Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)

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Damping rings with very small normalized equilibrium emittance and short damping times are required to deliver trains of bunches with a high repetition rate for the high-luminosity linear colliders. Using analytic expressions for the equilibrium emittance as a function of deflection angle per dipole, as well as the expression for the Twiss parameters providing the minimum emittance, a strategy to stay close to this minimum is described. In order to get as close as possible to the optimum Twiss parameters values, a quadruplet lattice with high horizontal phase advance is introduced. Finally, this approach is illustrated for the particular case of the CLIC damping ring and the resulting performance is described.

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“…The bunchlets are then merged in a single trajectory using a dipole magnet and undergo further acceleration downstream. This bunch recombination scheme could be tested in future (possibly with only two lines) in the CLIC Test Facility (CTF) [3].…”

Section: Introductionmentioning

confidence: 99%

Generation of a 30 GHz train of bunches using a magnetic switch-yard

Autin

Corsini

Proceedings Particle Accelerator Conference

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A possible technique of generation of high-frequency drive beam for a linear collider consists in creating electron bunches in a battery of guns and merging them in a magnetic circuit (switch-yard) at the end of which all the bunches are aligned on a common line with the right spacing. Two types of scheme are discussed. The properties of the structure in terms of orbit dispersion, focusing and bunch lengthening due to finite momentum spread and emittance are analyzed.

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CLIC Test Facility developments and results

Cited by 6 publications

References 1 publication

Nanosecond pulsed field emission from single-gate metallic field emitter arrays fabricated by molding

Nanosecond pulsed field emission from single-gate metallic field emitter arrays fabricated by molding

A low emittance lattice for the CLIC damping ring

Generation of a 30 GHz train of bunches using a magnetic switch-yard

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