NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Monte Carlo track structure for radiation biology and space applicationsOver the past two decades event by event Monte Carlo track structure codes have increasingly been used for biophysical modelling and radiotherapy. Advent of these codes has helped to shed light on many aspects of microdosimetry and mechanism of damage by ionising radiation in the cell. These codes have continuously been modified to include new improved cross sections and computational techniques. This paper provides a summary of input data for ionizations, excitations and elastic scattering cross sections for event by event Monte Carlo track structure simulations for electrons and ions in the form of parametric equations, which makes it easy to reproduce the data. Stopping power and radial distribution of dose are presented for ions and compared with experimental data. A model is described for simulation of full slowing down of proton tracks in water in the range 1 keV to 1 MeV. Modelling and calculations are presented for the response of a TEPC proportional counter irradiated with 5 MeV alpha-particles. Distributions are presented for the wall and wall-less counters. Data shows contribution of indirect effects to the lineal energy distribution for the wall counters responses even at such a low ion energy.
Document ID
20040088563
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Nikjoo, H.
(MRC Radiation and Genome Stability Unit, Harwell, OX11, 0RD, United Kingdom)
Uehara, S.
Khvostunov, I. G.
Cucinotta, F. A.
Wilson, W. E.
Goodhead, D. T.
Date Acquired
August 21, 2013
Publication Date
January 1, 2001
Publication Information
Publication: Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
Volume: 17 Suppl 1
ISSN: 1120-1797
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
NASA Center JSC
NASA Discipline Radiation Health

Available Downloads

There are no available downloads for this record.
No Preview Available