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Title: Capillary - Discharge Based Hand-Held Detector For Chemical Vapor Monitoring

Abstract

A handheld/portable detector for chemical vapor monitoring includes a housing and a discharge chamber that is established therein. The plasma discharge has a relatively small volume, e.g., in the micro-liter range. A first electrode and a second electrode are disposed within the discharge chamber and a discharge gap is established therebetween. A sample gas tube is in fluid communication with the discharge chamber and provides a sample gas to the discharge chamber. Also, a plasma gas tube is in fluid communication with the discharge chamber and provides a plasma gas thereto. Accordingly, the plasma gas can be used to maintain microplasma discharge between the electrodes and the sample gas can be introduced into the microplasma discharge. A spectrometer optically connected to the handheld/portable detector is used to measure the radiation emitted by the sample gas when subjected to the microplasma discharge.

Inventors:
 [1]
  1. White Rock, NM
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
879964
Patent Number(s):
US 6900734
Application Number:
10/386916
Assignee:
The Regents of the Universtiy of California (Oakland, CA)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Duan, Yixiang. Capillary - Discharge Based Hand-Held Detector For Chemical Vapor Monitoring. United States: N. p., 2005. Web.
Duan, Yixiang. Capillary - Discharge Based Hand-Held Detector For Chemical Vapor Monitoring. United States.
Duan, Yixiang. 2005. "Capillary - Discharge Based Hand-Held Detector For Chemical Vapor Monitoring". United States. https://www.osti.gov/servlets/purl/879964.
@article{osti_879964,
title = {Capillary - Discharge Based Hand-Held Detector For Chemical Vapor Monitoring},
author = {Duan, Yixiang},
abstractNote = {A handheld/portable detector for chemical vapor monitoring includes a housing and a discharge chamber that is established therein. The plasma discharge has a relatively small volume, e.g., in the micro-liter range. A first electrode and a second electrode are disposed within the discharge chamber and a discharge gap is established therebetween. A sample gas tube is in fluid communication with the discharge chamber and provides a sample gas to the discharge chamber. Also, a plasma gas tube is in fluid communication with the discharge chamber and provides a plasma gas thereto. Accordingly, the plasma gas can be used to maintain microplasma discharge between the electrodes and the sample gas can be introduced into the microplasma discharge. A spectrometer optically connected to the handheld/portable detector is used to measure the radiation emitted by the sample gas when subjected to the microplasma discharge.},
doi = {},
url = {https://www.osti.gov/biblio/879964}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {5}
}