Abstract

This is a report on the papers presented at the International Atomic Energy Agency Conference on Nuclear Electronics in the field of radiation monitors and instruments which was held at Belgrade in May, 1961. The report deals particularly with contamination monitors, survey (dose-rate) meters and instruments for monitoring gaseous and liquid effluent for radioactive contamination. Among the new techniques mentioned are the following: selective ?-monitoring for portable instruments; the use of semiconductor devices as radiation detectors; impactors for sorting particulate contamination according to the size of the particles; alarm systems taking account of normal natural background variations, so that more rapid variations automatically operate on alarm; the use of ?erenkov detectors in liquid effluent monitoring; the monitoring of surface contamination on fuel elements; the use of coincidence scintillation-counter systems for determining the direction of ?-radiation, for source location; and the remote indication of radiation monitors using telephone lines. The report gives details of a number of new instruments, including a new type of personal radiation monitor, and a new type of instrument for detecting accidental reactor excursions, as well as several new types of plutonium monitors. Reference is made in all cases to the original papers, which will shortly be available in the Proceedings of the Belgrade Conference, which will be published by the International Atomic Energy Agency, Vienna.

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