IONIZATION CHAMBER, MEASURING SEQUENCE FOR THE ACTIVITY OF A GAS EMITTING RADIATION beta AND METHOD USING SAME

摘要

The invention concerns a cylindrical ionization chamber comprising an anode (35) formed by a central bar in electrically conductive material and a cathode (38) in electrically conductive material enclosing said anode, both connected to two elements of a mechanical base of said chamber, wherein two cylindrical end shields (36, 37) in non-magnetic insulating material are centred on the anode (35) and arranged perpendicular thereto at its two ends, the cathode (38) being formed of a wire coiled on the peripheral part of said two end shields (36, 37).