SELF-CONTAINED DEVICE AND METHOD FOR MONITORING THE RADIOACTIVE CONTAMINATION OF A USER

摘要

The invention relates to a device (1) and a method for monitoring the contamination of a user with a radioactive element emitting beta radiation, provided with at least two vertically arranged proportional counter panels (12) with gas circulation, connected in series and suitable for detecting beta radiation. Each panel (12) comprises a frame (21) shaped like a parallelepiped vessel for retaining the gas and forming a cathode, a sheet (26) of conductive polymer attached to the top rim (27) of said vessel, a conductive metal grating (29) for protecting said panel, attached and electrically connected to said frame, sandwiching said sheet, and a rigid edge (B) for uniformly clamping the perimeter of the grating against the top rim of the frame. The device includes a means for sealing the vessel made up of a means for sticking the polymer sheet to the entire perimeter of the top rim (27) of said vessel, the gas supply circuit for the two panels comprising a built-in gas tank (R).