Advection over Sweden of Radioactive Dust from the First French nuclear Test Explosion

Abstract

An examination of the occurrence over Sweden of radioactive debris from the first French nuclear test in February 1960 has been undertaken. The distribution of radioactive deposit was uneven. The time of arrival of debris can be determined accurately, and a comparison is made with meteorological parameters. Special autoradiographical and gammaspectrometrical examinations have been carried out, which suggest fractionation effects to be present in the scavenging processes.