Effect of modulator operation on the one-electron characteristics of FEU-117 photomultipliers

Journal Article · Mon Sep 01 04:00:00 EDT 1986 · J. Appl. Spectrosc. (Engl. Transl.); (United States)

OSTI ID:7167820

Vetokhin, S S

The authors study the one-electron characteristics of a batch of FEU-117 instruments under different modes of modulator operation. Eight samples of the FEU-117 series were tested. Three of those were found suitable for photon counting, and their one-electron characteristics, obtained in the rated modulator operation, are listed. The results indicate that the one-electron output of the FEU-117 may be of the order of 40%, and that the counting rate of the selected samples is within 2000 sec/sup -1/, with a distinct output pulse peak and a gently sloping counting-characteristic plateau. The tests performed show that selected samples of the FEU-111 photomultipliers are suitable for use in photon counters. The modulator photocurrent-blocking efficiency is higher in the one-electron counting mode of the output signal than in the measurment of the mean anode current.

• OSTI ID: 7167820
• Journal Information: J. Appl. Spectrosc. (Engl. Transl.); (United States), Journal Name: J. Appl. Spectrosc. (Engl. Transl.); (United States) Vol. 44:3; ISSN JASYA
• Country of Publication: United States
• Language: English

Related Subjects

440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ANODES
DESIGN
ELECTRODES
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
GAMMA SPECTROMETERS
LEPTONS
MEASURING INSTRUMENTS
MODULATION
PERFORMANCE TESTING
PHOTOMULTIPLIERS
PHOTOTUBES
RADIATION DETECTORS
SCINTILLATION COUNTERS
SPECTROMETERS
TESTING