NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Radiation dosimetry and biophysical models of space radiation effectsEstimating the biological risks from space radiation remains a difficult problem because of the many radiation types including protons, heavy ions, and secondary neutrons, and the absence of epidemiology data for these radiation types. Developing useful biophysical parameters or models that relate energy deposition by space particles to the probabilities of biological outcomes is a complex problem. Physical measurements of space radiation include the absorbed dose, dose equivalent, and linear energy transfer (LET) spectra. In contrast to conventional dosimetric methods, models of radiation track structure provide descriptions of energy deposition events in biomolecules, cells, or tissues, which can be used to develop biophysical models of radiation risks. In this paper, we address the biophysical description of heavy particle tracks in the context of the interpretation of both space radiation dosimetry and radiobiology data, which may provide insights into new approaches to these problems.
Document ID
20040087541
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Cucinotta, Francis A.
(NASA Johnson Space Center Houston TX United States)
Wu, Honglu
Shavers, Mark R.
George, Kerry
Date Acquired
August 21, 2013
Publication Date
June 1, 2003
Publication Information
Publication: Gravitational and space biology bulletin : publication of the American Society for Gravitational and Space Biology
Volume: 16
Issue: 2
ISSN: 1089-988X
Subject Category
Aerospace Medicine
Distribution Limits
Public
Copyright
Other
Keywords
Review
NASA Discipline Radiation Health
NASA Center JSC
Review, Tutorial

Available Downloads

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