Calculations on the Zenith Reactor. Dragon Project Report

This paper gives a brief description of the geometrical model assumed for the Zenith reactor and the different core compositions. The main computer programmes used are also mentioned. The report describes separately the calculation of the resonance integral for the thorium pellets, of energy dependent disadvantage factors, of buckling, of reactivity, and of temperature coefficients. Wherever possible the calculated results are compared with experiments. (author)