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Title: Pulsed helium ionization detection system

Abstract

A helium ionization detection system is provided which produces stable operation of a conventional helium ionization detector while providing improved sensitivity and linearity. Stability is improved by applying pulsed dc supply voltage across the ionization detector, thereby modifying the sampling of the detectors output current. A unique pulse generator is used to supply pulsed dc to the detector which has variable width and interval adjust features that allows up to 500 V to be applied in pulse widths ranging from about 150 nsec to about dc conditions.

Inventors:
;
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
5433315
Application Number:
ON: DE86013801
Assignee:
Dept. of Energy
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; GAS CHROMATOGRAPHY; IONIZATION CHAMBERS; HELIUM; PULSE GENERATORS; PULSE TECHNIQUES; STABILITY; CHROMATOGRAPHY; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FLUIDS; FUNCTION GENERATORS; GASES; MEASURING INSTRUMENTS; NONMETALS; RADIATION DETECTORS; RARE GASES; SEPARATION PROCESSES; 440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments

Citation Formats

Ramsey, R S, and Todd, R A. Pulsed helium ionization detection system. United States: N. p., 1985. Web.
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Ramsey, R S, & Todd, R A. Pulsed helium ionization detection system. United States.
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Ramsey, R S, and Todd, R A. Tue . "Pulsed helium ionization detection system". United States.
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@article{osti_5433315,
title = {Pulsed helium ionization detection system},
author = {Ramsey, R S and Todd, R A},
abstractNote = {A helium ionization detection system is provided which produces stable operation of a conventional helium ionization detector while providing improved sensitivity and linearity. Stability is improved by applying pulsed dc supply voltage across the ionization detector, thereby modifying the sampling of the detectors output current. A unique pulse generator is used to supply pulsed dc to the detector which has variable width and interval adjust features that allows up to 500 V to be applied in pulse widths ranging from about 150 nsec to about dc conditions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 09 00:00:00 EST 1985},
month = {Tue Apr 09 00:00:00 EST 1985}
}
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