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Preliminary Results on a Low Emittance Gun Based on Field Emission (CROSBI ID 516706)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Ganter, Romain ; Candel, A. ; Dehler, Micha ; Gobrecht, Jens ; Gough, Christopher ; Leemann, Simon C. ; Li, K., Paraliev, Martin Lubenov ; Pedrozzi, Marco ; Raguin, Jean-Yves ; Rivkin, Leonid et al. Preliminary Results on a Low Emittance Gun Based on Field Emission // Proceedings of the 9th European Particle Accelerator Conference (EPAC 04). 2004. str. 306-308-x

Podaci o odgovornosti

Ganter, Romain ; Candel, A. ; Dehler, Micha ; Gobrecht, Jens ; Gough, Christopher ; Leemann, Simon C. ; Li, K., Paraliev, Martin Lubenov ; Pedrozzi, Marco ; Raguin, Jean-Yves ; Rivkin, Leonid ; Schlott, Volker ; Schulz, Lothar ; Streun, Andreas ; Wrulich, Aalbin ; Zelenika, Saša

engleski

Preliminary Results on a Low Emittance Gun Based on Field Emission

The development of a new electron gun with the lowest possible emittance would help reduce the total length and cost of a free electron laser. Recent progress in vacuum microelectronics makes field emitter arrays (FEAs) an attractive technology to explore for high brightness sources. Indeed, several thousands of microscopic tips can be deposited on a 1 mm diameter area. Electrons are then extracted by a first grid layer close to the tip apex and focused by a second grid layer one micrometer above the tip apex. In order to be a good candidate for a low emittance gun, field emission cathodes must provide at least the peak current, stability and homogeneity of current state of the art electron sources. Smaller initial divergence should then be achieved by the focusing grid and the intrinsic properties of the field emission process. Another important aspect for improving electron guns is to preserve the emittance during beam acceleration.

electron gun; low emittance; field emitter arrays

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Podaci o prilogu

306-308-x.

2004.

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objavljeno

Podaci o matičnoj publikaciji

Proceedings of the 9th European Particle Accelerator Conference (EPAC 04)

Podaci o skupu

9th European Particle Accelerator Conference (EPAC 04)

poster

05.07.2004-09.07.2004

Luzern, Švicarska

Povezanost rada

Fizika, Strojarstvo, Temeljne tehničke znanosti