RADIATION MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a radiation measuring device that has high noise resistance and can be manufactured inexpensively. SOLUTION: A rectangular frame-shaped shielding section 12 is integrally disposed on the inner surface of a box-shaped upper case 1 made of metal, and a radiation detection element 5 and amplifying circuit 6 are stored in this shielding section 12. A rectangular tubular ground pattern 15 is formed with a conductive wiring pattern around the radiation detection element 5 and amplifying circuit 6 fixed to the upper surface of a signal processing circuit board 3. This ground pattern 15 is connected to the ground of the signal processing circuit board 3. The shielding section 12 is made of a conductive material such as metal so that a round edge of the rectangular frame has the same shape as that of the ground pattern 15. The ground pattern 15 is electrically connected to the round edge of the shielding section 12 to fix the signal processing circuit board 3. COPYRIGHT: (C)2007,JPO&INPIT