DEPENDENCE OF THE DEGREE OF AMPLIFICATION ON THE MEAN OUTPUT CURRENT IN PHOTO-MULTIPLIERS

Journal Article · Fri Dec 01 04:00:00 EST 1961 · Kernenergie (East Germany)

OSTI ID:4793887

Seifarth, H

Investigations on the dependence of the degree of amplification on the mean output current were carried out on photomultipliers. The change in the degree of amplification was determined from the displacement of the photopeak of the 1.33-Mev line or a Co/sup 60/ test compound in increase of the integral counting rate by introduction of a Cs/sup 137/ supplementary preparation. The results showed that even at mean multiplier output currents of approximately 10/ sup -7/ amp a deviation of the degree of amplification with respect to the unloaded'' state of approximately 1% could occur. The equilibrium process between two steady values of the amplification degree is completed after about 2 hours. Application of this multiplier type to nuclear spectroscopic work would necessitate a stabilization of the complete spectrometer set-up. (J.S.R.)

• Research Organization: Technische Universitat, Dresden
• NSA Number: NSA-16-014956
• OSTI ID: 4793887
• Journal Information: Kernenergie (East Germany), Journal Name: Kernenergie (East Germany) Vol. Vol: 4; ISSN KERNA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

CESIUM 137
COBALT 60
ENGINEERING AND EQUIPMENT
PHOTOMULTIPLIERS
SPECTROSCOPY
STABILITY
TESTING