Physics Characteristics of a CANDU-600 with Repositioned Adjuster Rods Fuel led with MOX or Natural Uranium

Abstract

Repositioning the adjuster rods in 4 axial banks in future CAM)U-600 reactors would permit the flexibility of grading the inner and outer banks to achieve optimal flattening of the axial power distribution for any particular fuel. With the 4 banks identical, acceptable axial power profiles can be achieved for both MOX and natural uranium fuels. Future work is to be directed at assessing the impact of lower zone controller and shutoff rod worth in the configuration of reactivity devices considered here,


and if necessary, in identifying means of increasing their worth.