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Closing Report for NASA Cooperative Agreement NASA-1-242Reliable estimates of exposures due to ionizing radiations are of paramount importance in achieving human exploration and development of space, and in several technologically important and scientifically significant areas impacting on industrial and public health. For proper assessment of radiation exposures reliable transport codes are needed. An essential input to the transport codes is the information about the interaction of ions and neutrons with the matter. Most of the information about this interaction is put in by nuclear cross section data. In order to obtain an accurate parameterization of cross sections data, theoretical input is indispensable especially for the processes where there is little or no experimental data available. In the grant period reliable data base was developed and a phenomenological model was developed for the total absorption cross sections valid for any charged/uncharged light, medium and heavy collision pairs valid for the entire energy range. It is gratifying to note the success of the model. The cross sections model has been adopted and is in use in NASA cosmic ray detector development projects, the radiation protection and shielding programs and several DoE laboratories and institutions. A list of the publications based on the work done during the grant period is given below and a sample copy of one of the papers is enclosed with this report.
Document ID
20000021265
Acquisition Source
Langley Research Center
Document Type
Other
Authors
Maung, Khin Maung
(Hampton Univ. VA United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1999
Subject Category
Atomic And Molecular Physics
Funding Number(s)
CONTRACT_GRANT: NAS1-242
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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