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
- 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 = {Tue Jan 31 00:00:00 EST 1984},
month = {Tue Jan 31 00:00:00 EST 1984}
}
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