Patent ID: 7542538

Claim:
An apparatus for assembling a neutron re-irradiation capsule containing nuclear fuel specimens and at least one instrumentation sensor connected to external instrumentation and control systems via instrumentation lines, comprising a capsule main body and protection tube joined together, and to be neutron-irradiated in an irradiation hole of a reactor, the apparatus for joining the capsule main body and the protection tube together comprising: a base structure 60 ; a guiding pipe 30 of a length extending from the base structure to provide a pathway through which the capsule main body 10 is loaded on the base structure; a clamper 32 fixing the capsule main body to the guiding pipe; and a coupler 100 , 900 coupling the capsule main body with the protection tube, wherein the clamper 32 fixes the capsule main body to the guiding pipe by converting a vertically applied force into a horizontal force, and the clamper comprises: a guiding pipe flange 31 formed at an upper end of the guiding pipe 30 and having at least one screw hole 311 ; a clamping screw 321 having a head to be inserted into an assembling tool 73 , a screw part to be inserted into the at least one screw hole of the guiding pipe flange 31 , and a slant surface 322 tapering from the head to the screw part with an angle; a push rod 323 contacting with the slant surface of the clamping screw 321 , and moving towards the capsule main body in proportion to insertion of the screw part into the at least one screw hole 311 of the guiding pipe flange 31 ; and a jaw 324 formed at an end of the push rod 323 and moveable along the guiding pipe flange 31 .