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A comparison of total reaction cross section models used in particle and heavy ion transport codes
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. (Nuclear reaction group)
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2012 (English)In: Advances in Space Research, ISSN 0273-1177, E-ISSN 1879-1948, Vol. 49, no 4, 812-819 p.Article in journal (Refereed) Published
Abstract [en]

Understanding the interactions and propagations of high energy protons and heavy ions are essential when trying to estimate the biological effects of Galactic Cosmic Rays (GCR) and Solar Particle Events (SPE) on personnel in space. To be able to calculate the shielding properties of different materials and radiation risks, particle and heavy ion transport codes are needed. In all particle and heavy ion transport codes, the probability function that a projectile particle will collide within a certain distance x in the matter depends on the total reaction cross sections, and the calculated partial fragmentation cross sections scale with the total reaction cross sections. It is therefore crucial that accurate total reaction cross section models are used in the transport calculations. In this paper, different models for calculating nucleon-nucleus and nucleus-nucleus total reaction cross sections are compared with each other and with measurements. The uncertainties in the calculations with the different models are discussed, as well as their overall performances with respect to the available experimental data. Finally, a new compilation of experimental data is briefly presented.

Place, publisher, year, edition, pages
2012. Vol. 49, no 4, 812-819 p.
Keyword [en]
Total reaction cross section, Transport codes
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-172054DOI: 10.1016/j.asr.2011.11.029ISI: 000301312300020OAI: oai:DiVA.org:uu-172054DiVA: diva2:513344
Available from: 2012-04-02 Created: 2012-04-01 Last updated: 2017-12-07Bibliographically approved

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Lantz, Mattias

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