Actions for Microdosimetric results obtained by proportional counter and ionization chamber methods [electronic resource] : a comparison

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Microdosimetric results obtained by proportional counter and ionization chamber methods [electronic resource] : a comparison

Published
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1978.
Physical Description
Pages: 16 : digital, PDF file
Additional Creators
United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Energy deposition in one micron diameter volumes at distances of one and two microns from the ion's path has been estimated based on previously reported radial dose measurements made using a mesh wall ionization chamber. In these estimations it was assumed that radial dose varied inversely as the square of the radial distance. Ionization chamber measurements were reported for heavy ions (atomic number 1 to 53) having specific energies from 0.25 to 2.5 MeV per atomic mass unit (MeV/amu) and from 230 to 377 MeV/amu. Energy depositions were also measured using a wall-less gas proportional counter, and were reported by Kliauga and Rossi. Ions used in the proportional counter technique were 6.6 MeV/amu lithium and 10 and 23 MeV/amu protons. A comparison of results estimated from ionization chamber studies and measured using proportional counters is reported here. This comparison was facilitated by normalization in terms of Z/sup 2//sub eff/ and specific energy of the incident ions. Proportional counter results were in apparent agreement with ion chamber results for 23 MeV/amu protons but were lower than ion chamber results by approximately 50 percent for 10 MeV/amu protons and 60 percent for 6.6 MeV/amu lithium ions.
Report Numbers
E 1.99:bnl-24330
E 1.99: conf-780534-4
conf-780534-4
bnl-24330
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Other Subject(s)
Note
Published through SciTech Connect.
05/01/1978.
"bnl-24330"
" conf-780534-4"
6. symposium on microdosimetry, Brussels, Belgium, May 1978.
Varma, M.N.; Baum, J.W.; Kliauga, P.
Brookhaven National Lab., Upton, N.Y. (USA)
Funding Information
EY-76-C-02-0016
View MARC record | catkey: 13845257