Reverse sum quench measurement using a liquid scintillation coun

Details Reverse sum quench measurement using a liquid scintillation coun Reverse sum quench measurement using a liquid scintillation coun

1985-04-08

1986-12-30

Church, Craig E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250361R, 250362, 250363R, 250364, G01T 1204

Patent

active

046330887

ABSTRACT:
Apparatus and a method for determining a quench-indicating parameter of a test sample utilizing a liquid scintillation counter are disclosed. The number of counts in a spectrum resulting from subtraction of a spectrum generated without an external source of radiation from a spectrum generated with an external source of radiation is utilized. The total number of counts is cumulatively summed from a higher energy level to a lower energy level and a curve representing this sum is generated. A portion of this curve is fitted with a function such as a straight line and the intersection of that function with the zero count axis is the intersection energy level which is an indication of the measure of quench of the test sample.

REFERENCES:
patent: 4528450 (1985-07-01), Valenta
patent: 4555629 (1985-11-01), Everett et al.
"The TRI-CARB.RTM. 460C Automatic Liquid Scintillation System" Operation Manual, Packard Instrument Co., Inc., Publication No. 169-2185/B (U.S.A. 1980).

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