Monitoring of radioactivity in air in rooms of nuclear power stations. Pt. 2

The monitoring of radioactive materials in the air of rooms with correct operation should make a contribution to fulfilling the requirements of Para. 28 section 1 and Para. 46 section 1 no. 2 of StrlSchV, by: a) Automatically emitting signals if warning thresholds are exceeded, in order to recognise increased activity concentrations in the air and to introduce the necessary measures. b) Identifying the group of rooms concerned, in which increased activity concentration led to a rise of activity in the exhaust air from the chimney. c) Giving notice of leaking systems or components, which carry radioactive materials (monitoring leakage of parts of plant). d) Detecting increased concentrations in the air with regard to protecting the personnel. The devices required for the tasks are divided into: Solidly fixed measuring devices and sample collectors, particularly for monitoring radioactive materials in the air of waste air ducts and mobile measuring equipment and sample collectors for monitoring the air in rooms, particularly with regard to the radiation protection monitoring of workplaces. (orig.)