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Title: High efficiency photoionization detector

Abstract

A high efficiency photoionization detector 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.degree. C.

Inventors:
 [1]
  1. (3055 Trinity, Los Alamos, NM 87544)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
864855
Patent Number(s):
4429228
Assignee:
Anderson, David F. (3055 Trinity, Los Alamos, NM 87544) LANL
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
efficiency; photoionization; detector; tetraaminoethylenes; gaseous; ionization; potential; relative; section; closely; matches; emission; spectrum; xenon; gas; imaging; proportional; counters; disclosed; novel; compound; tmae; comprises; tetrakis; dimethylamino; ethylene; measured; 36; 02; vapor; pressure; 35; torr; 20; degree; closely matches; proportional counter; emission spectrum; vapor pressure; ionization detector; photoionization detector; ionization potential; proportional counters; closely match; efficiency photoionization; /250/

Citation Formats

Anderson, David F. High efficiency photoionization detector. United States: N. p., 1984. Web.
Anderson, David F. High efficiency photoionization detector. United States.
Anderson, David F. Sun . "High efficiency photoionization detector". United States. https://www.osti.gov/servlets/purl/864855.
@article{osti_864855,
title = {High efficiency photoionization detector},
author = {Anderson, David F.},
abstractNote = {A high efficiency photoionization detector 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.degree. C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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