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.
Ramsey, R S, & Todd, R A. Pulsed helium ionization detection system. United States.
Ramsey, R S, and Todd, R A. Tue .
"Pulsed helium ionization detection system". United States.
@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 = {1985},
month = {4}
}
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