Properties of CsI and CsI-TMAE photocathodes

Conference · Mon Jun 01 04:00:00 EDT 1992

OSTI ID:7115140

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: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 7115140
• Report Number(s): FNAL/C-92/135; CONF-9206222--1; ON: DE92018303
• Country of Publication: United States
• Language: English

Related Subjects

440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AGING
ALKALI METAL COMPOUNDS
CATHODES
CESIUM COMPOUNDS
CESIUM IODIDES
CHERENKOV COUNTERS
ELECTRODES
FABRICATION
HALIDES
HALOGEN COMPOUNDS
HEATING
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
MEASURING INSTRUMENTS
PERFORMANCE
PHOSPHORS
PHOTOCATHODES
PHYSICAL PROPERTIES
RADIATION DETECTORS