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A study of total reaction cross section models used in particle and heavy ion transport codes

Lembit Sihver (Institutionen för teknisk fysik, Nukleär teknik) ; M. Lantz
IEEE Aerospace Conference Proceedings. Big Sky, 5-12 Mars 2011 (1095-323X). (2011)
[Konferensbidrag, refereegranskat]

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. 12 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, which also scale the calculated partial fragmentation 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 presented and new measurements to improve the current models are suggested.

Nyckelord: Biological effects, Cross section, Current models, Experimental data, Galactic cosmic rays, Heavy-ion transport, High energy proton, Probability functions, Radiation risk, Reaction cross-sections, Shielding properties, Solar particle events, Transport calculation



Denna post skapades 2011-06-16. Senast ändrad 2013-08-21.
CPL Pubid: 141803

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Nukleär teknik (2006-2015)

Ämnesområden

Fysik

Chalmers infrastruktur