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Titolo:
FIELD-DEPENDENT PHOTOELECTRON EXTRACTION FROM CSI IN DIFFERENT GASES
Autore:
BRESKIN A; BUZULUTSKOV A; CHECHIK R; DIMAURO A; NAPPI E; PAIC G; PIUZ F;
Indirizzi:
WEIZMANN INST SCI,DEPT PARTICLE PHYS IL-76100 REHOVOT ISRAEL WEIZMANN INST SCI,DEPT PARTICLE PHYS IL-76100 REHOVOT ISRAEL SUBATECH NANTES FRANCE IST NAZL FIS NUCL,SEZ BARI I-70100 BARI ITALY SUBATECH I-70100 BARI ITALY CERN CH-1211 GENEVA SWITZERLAND
Titolo Testata:
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
fascicolo: 1-3, volume: 367, anno: 1995,
pagine: 342 - 346
SICI:
0168-9002(1995)367:1-3<342:FPEFCI>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOTOCATHODES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
A. Breskin et al., "FIELD-DEPENDENT PHOTOELECTRON EXTRACTION FROM CSI IN DIFFERENT GASES", Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 367(1-3), 1995, pp. 342-346

Abstract

We present the results of our latest investigations, made in the laboratory and in a RICH detector, of the dependence of the UV quantum efficiency (QE) of CsI on the gas and the electric field. We confirm thatin charge collection mode the QE in a gas is generally lower than in vacuum due to electron backscattering; in charge multiplication mode the QE increases with the field and reaches the vacuum value at high gas gains. The lowest photoemission under low electric field at the photocathode surface was observed in He-based gas mixtures; in Ar-hydrocarbon mixtures it approaches that of pure hydrocarbons. In CH4 and in CH4/i-C4H10 the QE value is practically independent of the field and is close to that in vacuum. The implications of CsI-based W-detectors, particularly to fast RICH devices, are discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 05:35:49