Abstract

Direct measurement of the total quantum counting efficiency of the RCA C31000E/F shows that it is about 25 ± 22% lower than the photocathode quantum efficiency in optimized commercial base units. Measurements with an EMI 9558 give similar results and with an Amperex 56TVP give similar although more erratic results due to its higher sensitivity to magnetic fields. The measurement techniques and conditions are described in detail. Diagnostic studies such as the question of dependence of counting efficiency on signal or background count rate are also presented.

© 1971 Optical Society of America

Photocathode Quantum Efficiency Enhancement of the RCA 31000E Photomultiplier at 6328 Å

R. Lakes and S. K. Poultney
Appl. Opt. 9(9) 2192-2193 (1970)

Quantum Enhancement of the RCA C31000E Photomultiplier

W. Robinson, J. Williams, and T. Lewis
Appl. Opt. 10(11) 2560-2560 (1971)

The Use of Photomultiplier Tubes for Photon Counting

R. Foord, R. Jones, C. J. Oliver, and E. R. Pike
Appl. Opt. 8(10) 1975-1989 (1969)

Photomultiplier Single Photon Counting Efficiency

L. Birenbaum and D. B. Scarl
Appl. Opt. 12(3) 519-521 (1973)

Noise in the Measurement of Light with Photomultipliers

F. Robben
Appl. Opt. 10(4) 776-796 (1971)