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Title: Dynamic pulse difference circuit

Patent ·
OSTI ID:863141

A digital electronic circuit of especial use for subtracting background activity pulses in gamma spectrometry comprises an up-down counter connected to count up with signal-channel pulses and to count down with background-channel pulses. A detector responsive to the count position of the up-down counter provides a signal when the up-down counter has completed one scaling sequence cycle of counts in the up direction. In an alternate embodiment, a detector responsive to the count position of the up-down counter provides a signal upon overflow of the counter.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
DOE Contract Number:
E(45-1)-1857
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4103148
OSTI ID:
863141
Country of Publication:
United States
Language:
English