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Related Experiment Videos

Space proton transport in one dimension.

S L Lamkin1, G S Khandelwal, J L Shinn

  • 1Old Dominion University, Department of Physics, Norfolk, Virginia 23529-0116.

Nuclear Science and Engineering : the Journal of the American Nuclear Society
|April 1, 1994
PubMed
Summary

This study introduces an improved nucleon transport evaluation method for better accuracy in simulations. The new approach enhances the study of space proton physics and radiation shielding effectiveness.

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A simple model for straggling evaluation.

Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms·2002

Area of Science:

  • Nuclear physics
  • Computational physics
  • Radiation transport

Background:

  • Accurate modeling of nucleon transport is crucial for radiation shielding and space physics.
  • Existing methods may have limitations in precision and computational efficiency.

Purpose of the Study:

  • To develop and evaluate an approximate procedure for second-order coupled nucleon transport.
  • To improve the accuracy of radiation transport simulations.

Main Methods:

  • Derived an approximate evaluation procedure for a second-order theory of coupled nucleon transport.
  • Utilized an analytical solution with a simplified interaction model to determine quadrature parameters.
  • Evaluated the method's effects on transport solutions using the BRYNTRN database and compared with Monte Carlo benchmarks.
Keywords:
NASA Discipline Number 45-10NASA Discipline Radiation HealthNASA Program Radiation Health

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Main Results:

  • The improved method demonstrated effectiveness in transport solutions.
  • Studied space proton physics using various shield materials.
  • Identified a significant transition effect in tissue near shield interfaces, particularly in high atomic number materials.

Conclusions:

  • The developed approximate evaluation procedure offers enhanced accuracy for nucleon transport.
  • The findings are critical for understanding space proton interactions and optimizing radiation shielding design.