Study Of Total, Absorption, and 3He and 3H Production Cross Sections in 4He-Proton Collisions

Document Type

Article

Publication Date

7-5-2021

Publication Title

Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

Volume

502

First page number:

136

Last page number:

141

Abstract

Light ion breakup cross sections are important for studies of cosmic ray interactions in the inter-stellar medium or radiation protection considerations of energy deposition in shielding and tissues. Abrasion cross sections for heavy ion reactions have been modeled using the Glauber model in the large mass limit or Eikonal form of the optical potential model. Here we formulate an abrasion model for 4He fragmentation on protons using the Glauber model avoiding the large mass limit and include a model for final state interactions. Calculations of energy dependent total, absorption, elastic and breakup cross sections for 4He into 3He or 3H with proton targets are shown to be in good agreement with experiments for energies from 100 to 100,000 MeV/u. The Glauber model for light nuclei with and without a large mass limit approximation is shown to be in fair agreement above 300 MeV/u, however important differences occur at lower energies.

Keywords

4 He absorption cross sections; 4 He fragmentation; Cosmic rays; Glauber model; Hadron cancer therapy

Disciplines

Nuclear | Physics

Language

English

UNLV article access

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