Cross Section Biasing Technique in 3H(d,n)4He Reaction using the GEANT4 Toolkit


Δημοσιευμένα: Ιουλ 31, 2024
IOANNIS TSORMPATZOGLOU
Anastasia Ziagkova
Michael Kokkoris
Maria Diakaki
Roza Vlastou
Kalliopi Kaperoni
Περίληψη

Simulations using Monte Carlo GEANT4 [1] toolkit was performed to quantify parasitic neutrons production from the 3H(d,n)4He reaction in the TANDEM [2] accelerator laboratory at N.C.S.R "Demokritos". In this reaction, parasitic neutrons are produced, which contaminate the main neutron beam. For studying parasitic neutrons, the cross section biasing technique has been applied to increase the cross sections of the reactions and to obtain accurate statistical results in a short computational time. However, the implementation of a biasing technique can significantly impact the physical processes simulated. The experimental setup contains the accelerator line and the tritium flange, which consists of molybdenum, tritium and copper. Then, the target materials are purposefully exposed to the neutron beam to conduct cross section measurement experiments. The simulation code aims to understand neutron flux distribution and transport through the targets. Finally, the corresponding results obtained using GEANT4, through the application of biasing techniques, were compared to those resulting from the combined use of the MCNP 6.1 [3] and NeuSDesc [4] codes.

Λεπτομέρειες άρθρου
  • Ενότητα
  • Poster contributions
Αναφορές
Book for Application Developers-Book for Application Developers 11.1 documentation, https://geant4-userdoc.web.cern.ch/UsersGuides/ForApplicationDeveloper/html/index.html
“Tandem Laboratory/Institute of Nuclear Physics/NCSR Demokritos”, http://tandem.inp.demokritos.gr/
J.S. Hendricks et al., Monte Carlo N-Particle simulations for nuclear detection and safeguards: An Examples-Based Guide for Students and Practitioners. Springer Nature. Y. (2022)
E. Birgersson, NeuSDeSc-Neutron Source Description Software Manual, JRC. Publications Repository, https://publications.jrc.ec.europa.eu/repository/handle/JRC51437
TENDL-2021 nuclear data library, https://tendl.web.psi.ch/tendl_2021/tendl2021.html
ENDF: Evaluated Nuclear Data file, https://www-nds.iaea.org/exfor/endf.htm