Radiation dose calculations with the Monte Carlo method
For high penetrating radiations such as neutrons and high-energy gamma rays, that deposit their energies uniformly over a large volume of a target medium, the determination of dose is commonly based on calculating the flux and then applying flux-to-dose conversion factors. For charged particles and low-energy gamma and x-rays, their energies are deposited locally, and flux-to-dose conversion factors could be complex functions of medium geometry and source conditions. Using an isotropic beta source, we calculated the doses in water layers (used to simulate tissue), and found that dose values depend on the size and shape of the water cell.'' We recommend that a standard'' size and shape of tissue equivalent material be established for beta dose calculations. 7 refs., 2 figs., 4 tabs.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- Sponsoring Organization:
- DOE/AD
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6197337
- Report Number(s):
- LA-UR-91-468; CONF-9103132--1; ON: DE91008582
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
655003* -- Medical Physics-- Dosimetry
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCULATION METHODS
COBALT 60
COBALT ISOTOPES
COMPUTER CODES
DISTRIBUTION
DOSES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
GAMMA RADIATION
HADRONS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATERIALS
MINUTES LIVING RADIOISOTOPES
MONTE CARLO METHOD
NEUTRONS
NICKEL 60
NICKEL ISOTOPES
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
RADIATION DOSE DISTRIBUTIONS
RADIATION DOSES
RADIATION FLUX
RADIATIONS
RADIOISOTOPES
SPATIAL DISTRIBUTION
STABLE ISOTOPES
TISSUE-EQUIVALENT MATERIALS
YEARS LIVING RADIOISOT