Bestimmung von effektiven Wirkungsquerschnitten und Erzeugungsraten für Tritium im Bestrahlungsexperiment TRIDEX

In the framework of the development of a fusion reactor blanket the irradiation experiment TRIDEX ($\underline{T}$ritium $\underline{R}$ecovery$\underline{I}$rradiation $\underline{D}$IDO $\underline{Ex}$periment) takes place at the Juelich Research Reactor FRJ-2 (DIDO). For this e quipment the required neutronic calculations have been performed. The aim was the determination of the neutron spectrum and several therefrom derived integral parameters for the irradiation positions in interest. From the calculated effective cross sections for the formation of Tritium resulting. From irradiated Lithium samples on one hand and from measured neutron flux densities on the other hand, all needed quantities of the Tritium production could be determined. The calculation of the neutron s p ectrum has been performed in a two-dimensional x-y-geometry. The neutron flux densities have been gained by gamma-spectrometric measurement of the activities in irradiated activation samples