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HZE reactions and data-base developmentThe primary cosmic rays are dispersed over a large range of linear energy transfer (LET) values and their distribution over LET is a determinant of biological response. This LET distribution is modified by radiation shielding thickness and shield material composition. The current uncertainties in nuclear cross sections will not allow the composition of the shield material to be distinguished in order to minimize biological risk. An overview of the development of quantum mechanical models of heavy ion reactions will be given and computational results compared with experiments. A second approach is the development of phenomenological models from semi-classical considerations. These models provide the current data base in high charge and energy (HZE) shielding studies. They will be compared with available experimental data. The background material for this lecture will be available as a review document of over 30 years of research at Langley but will include new results obtained over the last year.
Document ID
19950049845
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Townsend, Lawrence W.
(NASA Langley Research Center Hampton, VA, US, United States)
Cucinotta, Francis A.
(NASA Langley Research Center Hampton, VA, US, United States)
Wilson, John W.
(NASA Langley Research Center Hampton, VA, US, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publisher: Plenum Press (NATO ASI Series A, Life Sciences Vol. 243B)
Subject Category
Aerospace Medicine
Accession Number
95A81444
Distribution Limits
Public
Copyright
Other

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