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U.S. Department of Energy
Office of Scientific and Technical Information

Dynamic pulse difference circuit

Patent ·
OSTI ID:6257721
A digital electronic circuit of especial use for subtracting background activity pulses in gamma spectrometry is disclosed which 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.
Assignee:
Dept. of Energy
Patent Number(s):
US 4103148
OSTI ID:
6257721
Country of Publication:
United States
Language:
English