Patent ID: 11867851
Assignee: KOREA HYDRO & NUCLEAR POWER CO., LTD.
Field: Environmental technology (Chemistry)
Classification: CPC G  Y | IPC G

Claim 0:
1. A large-area radioactive surface contamination measurement device, comprising:
a frame body with a plurality of holes formed;
a mover connected to the frame body to move the frame body;
a plurality of radiation detection modules, each seated in the plurality of holes to detect at least one of: alpha rays, beta rays, and gamma rays; and
a control unit for calculating a radioactive contamination location and a radioactive contamination level by comparing detection values of the plurality of radiation detection modules with each other;
wherein each radiation detection module comprises:
a counter seated in each of the plurality of holes, each counter having at least one horizontally extending seating wing for seating the counter;
a photomultiplier tube coupled to the counter; and
a channel unit mounted on the photomultiplier tube.