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  • 1 Jožef Stefan Institute Department of Environmental Sciences Jamova 39 P.O. Box 3000 SI-1000 Ljubljana Slovenia
  • 2 Kernfysisch Versneller Instituut Nuclear Geophysics Division Zernikelaan 25 9474 AA Groningen The Netherlands
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Abstract  

An experimental verification of Monte Carlo neutron flux calculations in typical irradiation channels in the TRIGA Mark II reactor at the Joef Stefan Institute is presented. It was found that the flux, as well as its spectral characteristics, depends rather strongly on the position of the irradiation channel. Comparison of the results for parameter f (thermal-to-epithermal flux ratio), experimentally obtained by the Cd ratio multi-monitor method and Monte Carlo simulations shows relatively good agreement for most studied configurations except for the channel IC40 in the carousel facility, where differences are relatively large and not understood.