Photocathode Protection Circuit

Autor: Robert F. Howarth, Richard L. Ensminger
Rok vydání: 1967
Předmět:
Zdroj: Review of Scientific Instruments. 38:1798-1800
ISSN: 1089-7623
0034-6748
DOI: 10.1063/1.1720681
Popis: A photocathode protection circuit applicable to high voltage electron multiplier devices was developed and successfully used. Application to a image dissector tube is described. The protection circuit features the positive firing action of a silicon-controlled rectifier, current cutoff by reverse biasing of the photocathode, and photocathode current calibration and monitoring. Inherent safeguard against socket leakage and arcing is also discussed. (Author)
Databáze: OpenAIRE