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Revisiting the (7)Li(p,n)(7)Be reaction near threshold.

María S Herrera1, Gustavo A Moreno2, Andrés J Kreiner1

  • 1Comisión Nacional de Energía Atómica (CNEA), Av. Gral. Paz 1499, Buenos Aires B1650KNA, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917, Buenos Aires C1033AAJ, Argentina; Universidad Nacional de Gral. San Martín (UNSAM), 25 de Mayo y Francia, Buenos Aires B1650KNA, Argentina.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|December 12, 2013
PubMed
Summary

This study analyzes experimental neutron data for the Lithium-7 (⁷Li(p,n)) reaction near threshold. The findings provide an accurate neutron source model for Monte Carlo simulations in Boron Neutron Capture Therapy.

Keywords:
(7)Li(p,n)(7)Be reaction near threshold(p,n) Cross sectionDifferential neutron yield

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Area of Science:

  • Nuclear physics
  • Medical physics
  • Radiation oncology

Background:

  • Accurate neutron source modeling is crucial for Boron Neutron Capture Therapy (BNCT) simulations.
  • Monte Carlo simulations require reliable data for neutron generation, especially near the reaction threshold.

Purpose of the Study:

  • To compile and analyze experimental neutron data for the ⁷Li(p,n) reaction near threshold.
  • To develop a consistent parameter set for an accurate neutron source model for BNCT simulations.

Main Methods:

  • Systematic review and analysis of published experimental data.
  • Evaluation of cross sections, differential neutron yields, and total yields.
  • Sensitivity analysis of fitting parameters to various variables.

Main Results:

  • Collected and analyzed scattered experimental neutron data for the ⁷Li(p,n) reaction.
  • Identified a consistent set of parameters for neutron source modeling.
  • Demonstrated the sensitivity of fitting parameters to different variables.

Conclusions:

  • The derived parameter set enables accurate evaluation of the neutron source near threshold for BNCT.
  • This work provides a foundation for improved Monte Carlo simulations in Boron Neutron Capture Therapy.
  • The analysis highlights the importance of experimental data for refining nuclear reaction models.