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Title: PULSE HEIGHT ANALYZER

Abstract

An anticoincidence device is described for a pair of adjacent channels of a multi-channel pulse height analyzer for preventing the lower channel from generating a count pulse in response to an input pulse when the input pulse has sufficient magnitude to reach the upper level channel. The anticoincidence circuit comprises a window amplifier, upper and lower level discriminators, and a biased-off amplifier. The output of the window amplifier is coupled to the inputs of the discriminators, the output of the upper level discriminator is connected to the resistance end of a series R-C network, the output of the lower level discriminator is coupled to the capacitance end of the R-C network, and the grid of the biased-off amplifier is coupled to the junction of the R-C network. In operation each discriminator produces a negative pulse output when the input pulse traverses its voltage setting. As a result of the connections to the R-C network, a trigger pulse will be sent to the biased-off amplifier when the incoming pulse level is sufficient to trigger only the lower level discriminator.

Inventors:
Issue Date:
OSTI Identifier:
4307568
Patent Number(s):
2820895
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03K - PULSE TECHNIQUE
NSA Number:
NSA-12-007044
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; AMPLIFIERS; CAPACITORS; COINCIDENCE METHODS; ELECTRIC POTENTIAL; OPERATION; PATENT; PLANNING; PULSE ANALYZERS; PULSES; RESISTORS

Citation Formats

Johnstone, C W. PULSE HEIGHT ANALYZER. United States: N. p., 1958. Web.
Johnstone, C W. PULSE HEIGHT ANALYZER. United States.
Johnstone, C W. Tue . "PULSE HEIGHT ANALYZER". United States.
@article{osti_4307568,
title = {PULSE HEIGHT ANALYZER},
author = {Johnstone, C W},
abstractNote = {An anticoincidence device is described for a pair of adjacent channels of a multi-channel pulse height analyzer for preventing the lower channel from generating a count pulse in response to an input pulse when the input pulse has sufficient magnitude to reach the upper level channel. The anticoincidence circuit comprises a window amplifier, upper and lower level discriminators, and a biased-off amplifier. The output of the window amplifier is coupled to the inputs of the discriminators, the output of the upper level discriminator is connected to the resistance end of a series R-C network, the output of the lower level discriminator is coupled to the capacitance end of the R-C network, and the grid of the biased-off amplifier is coupled to the junction of the R-C network. In operation each discriminator produces a negative pulse output when the input pulse traverses its voltage setting. As a result of the connections to the R-C network, a trigger pulse will be sent to the biased-off amplifier when the incoming pulse level is sufficient to trigger only the lower level discriminator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {1}
}