Application of A150-plastic equivalent gases in microdosimetric measurements
Abstract
Neutron dosimetry measurements with ionization chambers, for the most part, employ tissue equivalent plastic-walled cavities (Shonka A150) filled with either air or a methane-base tissue-like gas. The atomic composition of TE-gas and A150 plastic are not matched and are quite dissimilar from muscle. Awschalom and Attix (1980) have partially resolved the problem by formulating a novel A150-plastic equivalent gas. This establishes a homogeneous wall-gas cavity dosimeter for neutron measurements and confines the necessary corrections to the applications of kerma ratios. In this report, we present measurements of applications of two A150-plastic equivalent gases in a low pressure spherical proportional counter. Gas gains and alpha-particle resolutions were determined. For these A150-mixtures as well as a methane-based TE-gas and an Ar-CO/sub 2/ mixture, we report measurements of event size distributions from exposure to a beam of 14.8 MeV neutrons.
- Authors:
- Publication Date:
- Research Org.:
- Wisconsin Univ., Madison (USA). Dept. of Medical Physics
- OSTI Identifier:
- 5456213
- Report Number(s):
- DOE/EV/01105-284
ON: DE82009368; TRN: 82-011938
- DOE Contract Number:
- AS02-76EV01105
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 61 RADIATION PROTECTION AND DOSIMETRY; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; NEUTRON DOSIMETRY; IONIZATION CHAMBERS; TISSUE-EQUIVALENT MATERIALS; FAST NEUTRONS; GASES; KERMA; MICRODOSIMETRY; BARYONS; DOSIMETRY; ELEMENTARY PARTICLES; FERMIONS; FLUIDS; HADRONS; MATERIALS; MEASURING INSTRUMENTS; NEUTRONS; NUCLEONS; RADIATION DETECTORS; 655003* - Medical Physics- Dosimetry; 654003 - Radiation & Shielding Physics- Neutron Interactions with Matter
Citation Formats
DeLuca, Jr., P. M., Higgins, P. D., Pearson, D. W., Schell, M., and Attix, F. H. Application of A150-plastic equivalent gases in microdosimetric measurements. United States: N. p., 1981.
Web. doi:10.2172/5456213.
DeLuca, Jr., P. M., Higgins, P. D., Pearson, D. W., Schell, M., & Attix, F. H. Application of A150-plastic equivalent gases in microdosimetric measurements. United States. https://doi.org/10.2172/5456213
DeLuca, Jr., P. M., Higgins, P. D., Pearson, D. W., Schell, M., and Attix, F. H. 1981.
"Application of A150-plastic equivalent gases in microdosimetric measurements". United States. https://doi.org/10.2172/5456213. https://www.osti.gov/servlets/purl/5456213.
@article{osti_5456213,
title = {Application of A150-plastic equivalent gases in microdosimetric measurements},
author = {DeLuca, Jr., P. M. and Higgins, P. D. and Pearson, D. W. and Schell, M. and Attix, F. H.},
abstractNote = {Neutron dosimetry measurements with ionization chambers, for the most part, employ tissue equivalent plastic-walled cavities (Shonka A150) filled with either air or a methane-base tissue-like gas. The atomic composition of TE-gas and A150 plastic are not matched and are quite dissimilar from muscle. Awschalom and Attix (1980) have partially resolved the problem by formulating a novel A150-plastic equivalent gas. This establishes a homogeneous wall-gas cavity dosimeter for neutron measurements and confines the necessary corrections to the applications of kerma ratios. In this report, we present measurements of applications of two A150-plastic equivalent gases in a low pressure spherical proportional counter. Gas gains and alpha-particle resolutions were determined. For these A150-mixtures as well as a methane-based TE-gas and an Ar-CO/sub 2/ mixture, we report measurements of event size distributions from exposure to a beam of 14.8 MeV neutrons.},
doi = {10.2172/5456213},
url = {https://www.osti.gov/biblio/5456213},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}