DocumentCode :
1044916
Title :
The influence of biasing circuits on photomultiplier tube output noise spectra and transfer functions
Author :
Kerns, David V., Jr. ; Chen, T.M. ; Hsu, Sheng T.
Author_Institution :
Bucknell University, Lewisburg, Pa.
Volume :
20
Issue :
4
fYear :
1973
fDate :
4/1/1973 12:00:00 AM
Firstpage :
341
Lastpage :
347
Abstract :
An ITT type FW118 photomultiplier tube biased by using a high-voltage power supply and a resistor chain was found experimentally to have output noise spectra decreasing in magnitude as frequency increases, resembling in shape the 1/ 
noise spectrum. This lowering of the noise level as frequency increases was explained in terms of: 1) the shunting effect of the interelectrode impedance and the stray capacitances of the last stage, and 2) the gain fluctuation of the photomultiplier tube caused by the noise voltage developed across each biasing resistor. A method of flattening the noise spectra and improving the frequency response of the tube is also given in this paper.
noise spectrum. This lowering of the noise level as frequency increases was explained in terms of: 1) the shunting effect of the interelectrode impedance and the stray capacitances of the last stage, and 2) the gain fluctuation of the photomultiplier tube caused by the noise voltage developed across each biasing resistor. A method of flattening the noise spectra and improving the frequency response of the tube is also given in this paper.Keywords :
Capacitance; Circuit noise; Frequency; Impedance; Noise level; Noise shaping; Photomultipliers; Power supplies; Resistors; Transfer functions;
fLanguage :
English
Journal_Title :
Electron Devices, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9383
Type :
jour
DOI :
10.1109/T-ED.1973.17653
Filename :
1477310
Link To Document :
