Illuminating arrangement for illuminating a photomultiplier in a double-beam photometer
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United States of America Patent
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-
Jun 2, 1992
Grant Date -
N/A
app pub date -
Feb 26, 1991
filing date -
Mar 23, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A photomultiplier (10) with an elongated rectangular, cathode (20) tilted with respect to the inlet opening (14) is alternately illuminated by a measuring light beam (36) and a reference light beam (40). The measuring light beam (36) and the reference light beam (40) extend in a plane parallel to the longitudinal sides of the cathode (20) and impinge upon the cothode (20), such that they illuminate the same areas of the cathode (20).
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Cited Art Landscape
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