[Zurück]

M. Cagnazzo, M. Raith, T. Stummer, M. Villa, H. Böck:
"Measurements of neutron flux distribution and energy spectrum in the horizontal beam tube at the TRIGA Mark II reactor Vienna";
in: "RRFM Transactions 2014", European Nuclear Society (Hrg.); herausgegeben von: European Nuclear Society; European Nuclear Society, Brüssel, 2014, ISBN: 978-92-95064-20-1, S. 336 - 342.

The core of the TRIGA Mark II research reactor at the Vienna University of Technology/Atominstitut has been recently fully refurbished with new fuel, slightly irradiated. Given this new core configuration, irradiation facilities need to be properly characterized in order to support future research activities. Aims of this work is to present the result of the measurements of the in-core neutron flux distribution and energy spectrum performed in one of the reactor horizontal tubes, applying a method based on the synergetic use of the Monte Carlo code MCNP and of a de-convolution technique of activated foils coupled with Monte Carlo code simulations (MCNP6). This method is very flexible and can be applied to characterize nuclear reactors that present a wide variability of core geometries, structural materials´ compositions, fuel composition and neutron energy spectra. The method allows measuring both slow and fast neutron components proving as result a neutron spectrum in 620 energy groups. In the case of the measurements presented in this work, the absolute neutron flux was evaluated within an accuracy within ±10%.

http://publik.tuwien.ac.at/files/PubDat_235083.pdf