Properties of CsI and CsI-TMAE photocathodes

Conference · Mon Jun 01 00:00:00 EDT 1992

OSTI ID:10167475

Anderson, D F; Kwan, S; Peskov, V ^[1]; Hoeneisen, B ^[2]

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1. Fermi National Accelerator Lab., Batavia, IL (United States)
2. Universidad San Francisco de Quito (Ecuador)

The importance of heating the CsI or CsI-TMAE photocathodes during preparation, as well as the importance of the gas environment on the quantum efficiency is presented. The dependence of the aging characteristics of these photocathodes on the operating temperature, on the presence of gas, and on the charge amplification of the chamber is also discussed. For CsI photocathodes charges in excess of 2{times}10{sup 14} e{sup {minus}}/mm{sup 2} can be collected with little degradation of performance. A timing resolution of 0.55 ns is also achieved for single photoelectrons suggesting a possible time-of-flight detector.

• Research Organization: Fermi National Accelerator Lab., Batavia, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 10167475
• Report Number(s): FNAL/C-92/135; CONF-9206222-1; ON: DE92018303
• Resource Relation: Conference: International conference on advanced technology and particle physics,Como (Italy),22-26 Jun 1992; Other Information: PBD: Jun 1992
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
PHOTOCATHODES
FABRICATION
CHERENKOV COUNTERS
PERFORMANCE
AGING
CESIUM IODIDES
HEATING
PHYSICAL PROPERTIES
440104
HIGH ENERGY PHYSICS INSTRUMENTATION