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Titolo:
Simulation and experimental study on tungsten field emission cathode
Autore:
Tsunawaki, Y; Tokura, Y; Kusaba, R; Ohigashi, P; Mima, K; Fujita, M; Imasaki, K; Nakai, S; Shiho, M;
Indirizzi:
Osaka Sangyo Univ, Dept Elect Engn & Elect, Osaka 5748530, Japan Osaka Sangyo Univ Osaka Japan 5748530 Engn & Elect, Osaka 5748530, Japan Kansai Univ, Dept Phys, Osaka 5648680, Japan Kansai Univ Osaka Japan 5648680 ai Univ, Dept Phys, Osaka 5648680, Japan Osaka Univ, Inst Laser Engn, Osaka 5650871, Japan Osaka Univ Osaka Japan5650871 iv, Inst Laser Engn, Osaka 5650871, Japan Inst Laser Technol, Osaka 5650871, Japan Inst Laser Technol Osaka Japan 5650871 ser Technol, Osaka 5650871, Japan Japan Atom Energy Res Inst, Fus Res Estab, Ibaraki, Osaka 3191195, Japan Japan Atom Energy Res Inst Ibaraki Osaka Japan 3191195 aka 3191195, Japan
Titolo Testata:
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
fascicolo: 1-3, volume: 429, anno: 1999,
pagine: 299 - 303
SICI:
0168-9002(19990611)429:1-3<299:SAESOT>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
LASER APPLICATIONS; ELECTRON-BEAMS; ARRAYS;
Keywords:
field emission; tungsten cathode; electron beam;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Tsunawaki, Y Osaka Sangyo Univ, Dept Elect Engn & Elect, 3 Chome, Osaka 5748530, Japan Osaka Sangyo Univ 3 Chome Osaka Japan 5748530 5748530, Japan
Citazione:
Y. Tsunawaki et al., "Simulation and experimental study on tungsten field emission cathode", NUCL INST A, 429(1-3), 1999, pp. 299-303

Abstract

We have been developing a tungsten field emission cathode for a Cherenkov FEL or Smith-Purcell FEL. The properties of the electron beam from a tungsten tip have been investigated using numerical simulation and some experiments. Although the 2nd gate reduced the emission current due to a decrease ofthe effective field at the tungsten tip, it focused and enlarged the electron beam current in a certain potential range of the 2nd gate depending on the cathode voltage and the distance between 1st and 2nd gates. The electron beam diameter was reduced to similar to 2 mm on the fluorescent screen atthe anode. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 07:40:08