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Titolo:
Researches on new photocathode for RF electron gun
Autore:
Zhao, K; Hao, JK; Tang, YX; Zhao, K; Wang, LF; Zhang, BC; Chen, J;
Indirizzi:
Peking Univ, RF SC Grp, Inst Heavy Ion Phys, Beijing 100871, Peoples R China Peking Univ Beijing Peoples R China 100871 ijing 100871, Peoples R China
Titolo Testata:
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
fascicolo: 1-3, volume: 445, anno: 2000,
pagine: 394 - 398
SICI:
0168-9002(20000501)445:1-3<394:RONPFR>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Keywords:
ion implantation; photocathode; laser;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
4
Recensione:
Indirizzi per estratti:
Indirizzo: Zhao, K Peking Univ, RF SC Grp, Inst Heavy Ion Phys, Beijing 100871, Peoples R China Peking Univ Beijing Peoples R China 100871 0871, Peoples R China
Citazione:
K. Zhao et al., "Researches on new photocathode for RF electron gun", NUCL INST A, 445(1-3), 2000, pp. 394-398

Abstract

Semiconductor photocathode and metal photocathode have different properties, To consider the properties of both, we studied a new type of photocathode - ion implanted photocathode. Cesium ions are implanted into a metal substrate. A photocathode preparation chamber is set up to make this photocathode. A cesium ion source is attached to the common photocathode preparation chamber. In the past two years, we finished making this photocathode and did research on its properties. A series of experiments have been done with different metal substrates, implanting dosages and implanting energies, in order to get a kind of photocathode material with high quantum efficiency and good stability. An increase of quantum efficiency after implantation has been observed. A more interesting result is that the emission spectrum becomes broader. (C) 2000 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 25/09/20 alle ore 00:19:03