High-efficiency photoionization detector

Patent · Tue May 12 00:00:00 EDT 1981

OSTI ID:5253374

Anderson, D F

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/sup 0/C.

• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy
• Application Number: ON: DE82011706
• OSTI ID: 5253374
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ETHYLENE
PHOTOIONIZATION
GAS SCINTILLATION DETECTORS
DESIGN
MULTIWIRE PROPORTIONAL CHAMBERS
ULTRAVIOLET RADIATION
X-RAY DETECTION
CROSS SECTIONS
EMISSION SPECTRA
IONIZATION POTENTIAL
IONIZED GASES
RESOLUTION
VAPOR PRESSURE
XENON
ALKENES
DETECTION
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
GASES
HYDROCARBONS
IONIZATION
MEASURING INSTRUMENTS
NONMETALS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PROPORTIONAL COUNTERS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
RARE GASES
SCINTILLATION COUNTERS
SPECTRA
THERMODYNAMIC PROPERTIES
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments