"Jožef Stefan" Institute
Reactor physics department (F8)
Jamova cesta 39
Telephone: +386 1 588 5450
Fax: +386 1 588 5377
Department is located at
Reactor Centre Podgorica.
Head Assoc. Prof. Dr. Luka Snoj.
Reactor physicsMain topics in reactor physics:
- Development of new methods for the analysis of research and power reactors.
- Neutron transport calculations for fusion reactors.
- Nuclear data, validation of nuclear data and sensitivity analysis.
- Experimental reactor physics.
Development of new methods for the analysis of research and power reactors
We work on nuclear transport calculations, advanced nodal methods, pin cell and fuel element homogenisation and on methods aimed at precise power distribution reconstruction. Several program packages for reactor calculations both for our TRIGA research reactor and Krško nuclear power plant were developed at our department. (See also Program developed at reactor physics department.)
Neutron transport calculations for fusion reactors
We have collaboration with JET – Joint
European Torus, the largest fusion reactor in the
world. Co-workers of the Reactor physics division have
performed longer visits to JET in order to make
calculations of the response of the in-vessel neutron
detector and in this way improved its calibration. The
work was necessary after the change of the torus first
wall to beryllium in view of the change in the neutron
field. The IJS staff is co-responsible for the
maintenance of the JET model for transport
calculations with the
We collaborate also on the project of neutron detector calibration. Our work was devoted especially to the remote handling system and the analyses of its influence on the calibration of neutron detectors.
Nuclear data, validation of nuclear data and sensitivity analysis
Through international collaboration we working on nuclear data evaluation. Evaluations for six materials were accepted into the latest US evaluated nuclear data library ENDF/B-VII.1, which was released in December 2011.
Experimental reactor physics
We perform experiments on TRIGA research reactor and mesurements at Nuclear power plant Krško. In 2011 with colleagues from CEA-Cadarache a series of measurements was performed on the TRIGA reactor. The spatial distribution of the fission reaction rate in the core was accurately measured. New neutron dosimeters and self-powered detectors were tested. The results will serve for the validation and improvement of computational models and the improvement of the accuracy of the absolute power calibration in the TRIGA reactor.
M.B., TRKOV, Andrej. ENDF/B-VII.1 nuclear data for
science and technology : cross sections, covariances,
fission product yields and decay data. Nucl. data
Andrej, CAPOTE, R., SOUKHOVITSKII, E., LEAL, L.C.,
SIN, M., KODELI, Ivan Aleksander, MUIR, D.W.
Covariances of evaluated nuclear cross section data
for 232Th, 180, 182, 183, 184, 186W
and 55Mn. Nucl. data sheets (
Contributors, SNOJ, Luka, SYME, B., POPOVICHEV,
Sergei, LENGAR, Igor, CONROY, S., TRKOV, Andrej.
Calculations to support JET neutron yield calibration
: Contributions to the external neutron monitor
Matjaž, REMEC, Igor, KROMAR, Marjan. CORD - a
programme package for PWR core design calculations. V:
Proceedings, (IAEA-TECDOC, 567).
TRKOV, Andrej, RAVNIK, Matjaž, BOECK, H., GLUMAC, Bogdan. Reactivity measurements in a close-to-critical TRIGA reactor using a digital reactivity meter. Kerntechnik (1987), 1992, vol. 57, str. 296-300. [COBISS.SI-ID 13893927]
See also annual reports and computer programs developed at our department.
08-Nov-2012 by firstname.lastname@example.org