Nuclide++: A C++ module to include DDEP recommended radioactive decay Data in Geant4

Cheick Thiam (1) , Christophe Dulieu (1) , Xavier Mougeot (1) , Adithya Nair (1) , Christophe Bobin (1) , Mark Kellett (1)

1 LNHB (CEA, LIST) - Laboratoire National Henri Becquerel (CEA, LIST)

The NUCLEIDE database provides comprehensive and accurate data recommended by the Decay Data Evaluation Project (DDEP). The module NUCLEIDE++, written in C++, and designed to work in conjunction with the GEANT4 Monte Carlo toolkit has been developed to simulate the complete decay scheme for a given radionuclide by randomly selecting the decay pathways, using data from NUCLEIDE. The nuclear de-excitation of the potential daughters can also be treated in the same run. The initial energies of the electron and positron in the case of beta-emitting radionuclides are sampled from spectra calculated with the BetaShape program developed at LNE-LNHB. The aim of this work is to propose to GEANT4 users the possibility to run with the recommended NUCLEIDE data and a more detailed model. The reliability of NUCLEIDE++ is shown by comparing the coincident particles cascades to the ones obtained with PENNUC and GEANT4.

Mots clés: ionizing radiation; Radioactivity; metrology; simulation; Decay data evaluation; Simulation; Particle transport; modelling; PENELOPE; GEANT4; NUCLEIDE database

Domaines: Physique Nucléaire Théorique [nucl-th]; Modélisation et simulation

Cheick Thiam, Christophe Dulieu, Xavier Mougeot, Adithya Nair, Christophe Bobin, et al.. Nuclide++: A C++ module to include DDEP recommended radioactive decay Data in Geant4. ICRM 2019 - 22nd International Conference on Radionuclide Metrology and its Applications, International Committee for Radionuclide Metrology (ICRM); University of Salamanca, May 2019, Salamanca, Spain. pp.90. ⟨cea-03044720⟩