IMRDEC swMATH ID: 30965 Software Authors: Stepanek, Jiri Description: A programm to determine the radiation spectra due to a single atomic-subshell ionisation by a particle or due to deexcitation or decay of radionuclides. The computer program IMRDEC has been developed to determine the radiation spectra due to a single atomic-subshell ionization of a stable atom by a particle, or due to the atomic deexcitation or decay of nuclides. The data needed to describe the deexcitation or decay scheme of the mother atoms are obtained from the Evaluated Nuclear Structure Data File (ENSDF) maintained at Brookhaven National Laboratory; this results in the simplest possible input specification. The atomic data as well as the atomic relaxation probabilities are taken from the Evaluated Atomic Data Library (EADL) from Lawrence Livermore National Laboratory. The program IMRDEC calculates the radiation spectra (including the atomic relaxation cascades) optionally, using the deterministic or the Monte Carlo method. The deterministic method results in a much shorter calculation time per nuclide. Due to the many assumptions that worldwide still have to be made in determining the atomic relaxation probabilities as well as in calculating the atomic relaxation, the deterministic method seems to be a small source of inaccuracy. Homepage: https://www.sciencedirect.com/science/article/pii/S0010465597000684 Keywords: radiation spectra; atomic-subshell ionization; deexcitation; decay; radionuclides; evaluated nuclear structure data file; evaluated atomic data library; computer program IMRDEC; atomic relaxation cascades; Monte Carlo method Related Software: ENDL; RELAX; CATAR; RADLST; GEANT4 Cited in: 1 Document Standard Articles 1 Publication describing the Software, including 1 Publication in zbMATH Year A programm to determine the radiation spectra due to a single atomic-subshell ionisation by a particle or due to deexcitation or decay of radionuclides. Zbl 0940.81048Stepanek, Jiri 1997 Cited by 1 Author 1 Štepánek, Jiří Cited in 1 Serial 1 Computer Physics Communications Cited in 1 Field 1 Quantum theory (81-XX) Citations by Year