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This article is cited in 6 scientific papers (total in 6 papers)
CONFERENCES AND SYMPOSIA
Electron gun with a transmission photocathode for the Joint Institute for Nuclear Research photoinjector
N. I. Balalykina, V. F. Minashkina, M. A. Nozdrina, G. D. Shirkova, V. V. Zelenogorskiib, E. I. Gachevab, A. K. Potemkinb, J. Huranc a Joint Institute for Nuclear Research, Dubna, Moscow region
b Institute of Applied Physic, Russian Academy of Sciences, Nizhny Novgorod
c Institute of Electrical Engineering, Bratislava
Abstract:
Photocathode electron guns are key to the generation of high-quality electron bunches, which are currently the primary source of electrons for linear electron accelerators. The photogun test bench built at the Joint Institute for Nuclear Research (JINR) is currently being used to further develop the hollow (backside irradiated) photocathode concept. A major achievement was the replacement of the hollow photocathode by a technologically more feasible transmission photocathode made from a metal mesh that serves as a substrate for films of various photomaterials. A number of thin-film cathodes on quartz glass substrates are fabricated by photolithography. The vectorial photoeffect (related to the surface-normal component of the wave electric field) is observed and found to significantly affect the quantum efficiency. The dependence of the quantum efficiency of diamond-like carbon photocathodes on the manufacturing technology is investigated. The Rutherford backscattering and elastic recoil detection techniques are combined to carry out an elemental analysis of the films. An estimate of the emittance of a 400 pC electron beam is obtained using the cross-section method.
Received: March 30, 2017 Accepted: March 1, 2017
Citation:
N. I. Balalykin, V. F. Minashkin, M. A. Nozdrin, G. D. Shirkov, V. V. Zelenogorskii, E. I. Gacheva, A. K. Potemkin, J. Huran, “Electron gun with a transmission photocathode for the Joint Institute for Nuclear Research photoinjector”, UFN, 187:10 (2017), 1134–1141; Phys. Usp., 60:10 (2017), 1051–1058
Linking options:
https://www.mathnet.ru/eng/ufn5953 https://www.mathnet.ru/eng/ufn/v187/i10/p1134
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