The exposure instrument outside the exposure dose excess alarm device null pocket die which uses

摘要

PROBLEM TO BE SOLVED: To deliver surely an alarm of excess exposure to a worker even in a highly noisy environment, while using as it is a well-known ADP used for a work in a nuclear power plant, to prevent malfunction of the APD caused by a noise, and to protect the APD from sweating of the worker or the like.;SOLUTION: This device comprises a storing case 20 for storing the APD 30, and a separation vibration unit 40 electrically connectable to the storing case. The APD is stored in the storing case and fitted in a chest pocket 10, and the vibration unit is used in a suspended state from the worker's neck. A photodetection sensor provided in the storing case detects light from an alarm lamp of the APD, and allows a vibration device provided in the storing case and in the separation vibration unit to operate through a control circuit.;COPYRIGHT: (C)2006,JPO&NCIPI