Energetic Light Fragment Production Capability in MCNP6

TL;DR

This paper enhances MCNP6's ability to simulate high-energy light fragment production by extending models to include heavier fragments, improving agreement with experimental data.

Contribution

It introduces extensions to precompound models in MCNP6 to enable emission of heavier light fragments beyond helium-4.

Findings

Improved agreement with experimental data for high-energy light fragments.

Extended precompound models to include fragments heavier than $^4$He.

Demonstrated emission of light fragments through multiple nuclear processes.

Abstract

The goal of this research is to enable MCNP6 to produce high-energy light fragments. These energetic light fragments may be emitted by our models through three processes: Fermi breakup, preequilibrium, and coalescence. We explore the emission of light fragments through each of these mechanisms and demonstrate an improved agreement with experimental data achieved by extending precompound models to include emission of fragments heavier than $^4$He.