Patent ID: 7302028
Filing Date: 2007-11-27
Classification: G21C,Y02E

Abstract:
1. A research reactor having a control unit connected thereto and containing an instrumented capsule for a nuclear fuel irradiation test, the instrumented capsule comprising: a capsule part comprising an outer shell with a predetermined length and opposite open ends, one or more nuclear fuel rod assemblies loaded in the outer shell and each having a plurality of irradiation test fuel rods each containing a sintered nuclear fuel body therein, a plurality of support tubes inserted into the outer shell to support the plurality of fuel rod assemblies in a predetermined place in the outer shell, an upper end plate and a lower end plate mounted to an upper end and a lower end of the outer shell, respectively, with a plurality of coolant flow channels formed in each of the upper and lower end plates and a protective tube connected to a top of the upper end plate by means of an upper end plate connector, and protecting the instrument control cables extending from the in-capsule instruments to the outside of the capsule part; a junction tree connected to an upper end of the protective tube and having both a vertical extension part and an inclined extension part, with a cable connection adapter provided at an upper end of the inclined extension part to hold the instrument control cables; a guide pipe connected to the inclined extension part through the cable connection adapter and guiding the instrument control cables to a control unit provided outside a research reactor; and a grapple head assembly connected to an upper end of the vertical extension part to be coupled to a capsule treatment system.