Publicación:
Testing FLUKA on neutron activation of Si and Ge at nuclear research reactor using gamma spectroscopy
Testing FLUKA on neutron activation of Si and Ge at nuclear research reactor using gamma spectroscopy
No hay miniatura disponible
Fecha
2018
Autores
Bazo J.
Rojas J.M.
Best S.
Bruna R.
Endress E.
Mendoza P.
Poma V.
Gago A.M.
Título de la revista
Revista ISSN
Título del volumen
Editor
Elsevier
Proyectos de investigación
Unidades organizativas
Número de la revista
Abstracto
Samples of two characteristic semiconductor sensor materials, silicon and germanium, have been irradiated with neutrons produced at the RP-10 Nuclear
Research Reactor at 4.5 MW. Their radionuclides photon spectra have been
measured with high resolution gamma spectroscopy, quantifying four radioisotopes (28Al, 29Al for Si and 75Ge and 77Ge for Ge). We have compared the
radionuclides production and their emission spectrum data with Monte Carlo
simulation results from FLUKA. Thus we have tested FLUKA’s low energy
neutron library (ENDF/B-VIIR) and decay photon scoring with respect to the
activation of these semiconductors. We conclude that FLUKA is capable of predicting relative photon peak amplitudes, with gamma intensities greater than
1%, of produced radionuclides with an average uncertainty of 13%. This work
allows us to estimate the corresponding systematic error on neutron activation
simulation studies of these sensor materials.
Descripción
The authors gratefully acknowledge DGI-PUCP for financial sup-port under Grants No. DGI-2015-192 and DGI-2017-3-0019, as wellas CONCYTEC under Grant No. FONDECYT-2013-102. The authorswish to thank the FLUKA scientific committee for useful commentsand suggestions, Jose Fernandes and Francisco Rumiche for the SEMmeasurements and Jorge Andrés Guerra, Patrizia Pereyra and DanielPalacios for useful discussions.
Palabras clave
Nuclear reactors,
Chemical activation,
Emission spectroscopy,
Germanium,
Intelligent systems,
Intelligent systems,
Monte Carlo methods,
Neutron activation analysis,
Neutron irradiation,
Neutrons,
Nuclear engineering