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Title: High efficiency photoionization detector

Abstract

A high efficiency photoionization detector is described using tetraaminoethylenes in a gaseous state having a low ionization potential and a relative photoionization cross section which closely matches the emission spectrum of xenon gas. Imaging proportional counters are also disclosed using the novel photoionization detector of the invention. The compound of greatest interest is TMAE which comprises tetrakis(dimethylamino)ethylene which has a measured ionization potential of 5.36 [+-] 0.02 eV, and a vapor pressure of 0.35 torr at 20 C. 6 figs.

Inventors:
Issue Date:
OSTI Identifier:
7003985
Patent Number(s):
4429228 A
Application Number:
PPN: US 6-262833
Assignee:
PTO; EDB-94-124855
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 12 May 1981
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; MATERIALS; PHOTOIONIZATION; MONITORS; DESIGN; ALKENES; AMINES; IONIZATION POTENTIAL; MONITORING; VAPOR PRESSURE; HYDROCARBONS; IONIZATION; MEASURING INSTRUMENTS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; 400500* - Photochemistry

Citation Formats

Anderson, D F. High efficiency photoionization detector. United States: N. p., 1984. Web.
Anderson, D F. High efficiency photoionization detector. United States.
Anderson, D F. Tue . "High efficiency photoionization detector". United States.
@article{osti_7003985,
title = {High efficiency photoionization detector},
author = {Anderson, D F},
abstractNote = {A high efficiency photoionization detector is described using tetraaminoethylenes in a gaseous state having a low ionization potential and a relative photoionization cross section which closely matches the emission spectrum of xenon gas. Imaging proportional counters are also disclosed using the novel photoionization detector of the invention. The compound of greatest interest is TMAE which comprises tetrakis(dimethylamino)ethylene which has a measured ionization potential of 5.36 [+-] 0.02 eV, and a vapor pressure of 0.35 torr at 20 C. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}