Monte Carlo electron-transport calculations for clinical beams using energy grouping
Teng, S P; Anderson, D W; Lindstrom, D G
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ELECTRON BEAMS; DEPTH DOSE DISTRIBUTIONS; PHANTOMS; CHARGED-PARTICLE TRANSPORT; COMPUTER CODES; ELASTIC SCATTERING; ENERGY ABSORPTION; ENERGY LOSSES; MATHEMATICAL MODELS; MEV RANGE 10-100; MONTE CARLO METHOD; WATER; ABSORPTION; BEAMS; ENERGY RANGE; HYDROGEN COMPOUNDS; LEPTON BEAMS; LOSSES; MEV RANGE; MOCKUP; OXYGEN COMPOUNDS; PARTICLE BEAMS; RADIATION DOSE DISTRIBUTIONS; RADIATION TRANSPORT; SCATTERING; SPATIAL DOSE DISTRIBUTIONS; STRUCTURAL MODELS; 654001* - Radiation & Shielding Physics- Radiation Physics, Shielding Calculations & Experiments
A Monte Carlo program has been utilized to study the penetration of broad electron beams into a water phantom. The MORSE-E code, originally developed for neutron and photon transport, was chosen for adaptation to electrons because of its versatility. The electron energy degradation model employed logarithmic spacing of electron energy groups and included effects of elastic scattering, inelastic-moderate-energy-loss-processes and inelastic-large-energy-loss-processes (catastrophic). Energy straggling and angular deflections were modeled from group to group, using the Moeller cross section for energy loss, and Goudsmit-Saunderson theory to describe angular deflections. The resulting energy- and electron-deposition distributions in depth were obtained at 10 and 20 MeV and are compared with ETRAN results and broad beam experimental data from clinical accelerators.
National Tsing-Hua Univ., Hsin Chu, Taiwan, CN. Dept. of Nuclear Engineering; City of Faith Medical and Research Center, Tulsa, OK, US; Joint Center for Graduate Study, Richland, WA, USA
United Kingdom
1986-01-01
English
Journal Article
Journal Name: Appl. Radiat. Isot.; (United Kingdom); Journal Volume: 37:12
Medium: X; Size: Pages: 1189-1194
Journal ID: CODEN: ARISE
GBN; GBN-87-000770; EDB-88-013294
2010-12-29
5761545