Faculty Advisor or Committee Member

Padmanabhan K. Aravind

Faculty Advisor or Committee Member

John W. Norbury

Faculty Advisor or Committee Member

Steve R. Blattnig

Co-advisor

Padmanabhan K. Aravind, John W. Norbury, Steve R. Blattnig

Identifier

etd-042208-131402

Abstract

Space radiation and its effects on human life and sensitive equipment are of concern to a safe exploration of space. Radiation fields are modified in quality and quantity by intervening shielding materials. The modification of space radiation by shielding materials is modeled by deterministic transport codes using the Boltzmann transport equation. Databases of cross sections for particle production are needed as input for transport codes. A simple model of nucleon-nucleon interactions is developed and used to derive differential and total cross sections. The validity of the model is verified for proton-proton elastic scattering and applied to delta-resonance production. Additionally, a comprehensive validation program of the nucleus-nucleus fragmentation cross section models NUCFRG2 and QMSFRG is performed. A database of over 300 experiments was assembled and used to compare to model fragmentation cross sections.

Publisher

Worcester Polytechnic Institute

Degree Name

PhD

Department

Physics

Project Type

Dissertation

Date Accepted

2008-04-22

Accessibility

Unrestricted

Subjects

nuclear physics, particle physics, physics, resonance, nuclear fragmentation, nucleon-nucleon interactions, radiation shielding, heavy-ion physics, space radiation, Extraterrestrial radiation, Nuclear fragmentation

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