Performance characteristics of A150 plastic-equivalent gases in A150 plastic proportional counters for 14. 8-MeV neutrons

Journal Article · Sun Jul 01 00:00:00 EDT 1984 · Med. Phys.; (United States)

OSTI ID:6667310

DeLuca, Jr, P M; Schell, M C; Pearson, D W; Higgins, P D; Attix, F H

Two recently developed A150 plastic-equivalent gas mixtures have been tested for suitability in proportional counter applications. Methane- and propane-based ''tissue-equivalent'' gases were also included for comparison purposes. Event-size weighted dose distributions were measured in a 14.8-MeV neutron beam. Resolution was found to be independent of gas mixture. Moreover the gains of the two A150 mixtures were the same, and comparable to that of the methane-based gas mixture. The ionization yield per event size was also independent of the hydrogenous gas mixture employed. Neutron doses determined with the proportional counter were in reasonable agreement with those obtained from an ionization chamber.

• Research Organization: Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706
• DOE Contract Number: AC02-76EV01105
• OSTI ID: 6667310
• Journal Information: Med. Phys.; (United States), Vol. 11:4
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
61 RADIATION PROTECTION AND DOSIMETRY
METHANE
TISSUE-EQUIVALENT MATERIALS
NEUTRON DOSIMETRY
RADIATION DOSE DISTRIBUTIONS
TISSUE-EQUIVALENT DETECTORS
PROPANE
IONIZATION
IONIZATION CHAMBERS
MEV RANGE 10-100
NEUTRON BEAMS
PERFORMANCE
RESOLUTION
ALKANES
BEAMS
DOSIMETRY
ENERGY RANGE
HYDROCARBONS
MATERIALS
MEASURING INSTRUMENTS
MEV RANGE
NUCLEON BEAMS
ORGANIC COMPOUNDS
PARTICLE BEAMS
RADIATION DETECTORS
440102* - Radiation Instrumentation- Radiation Dosemeters
655003 - Medical Physics- Dosimetry