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}
}