Fission Product Radioactivity in the North Polar Stratosphere

Balloon-borne gamma-ray detection equipment flown from Thule, Greenland, during April 1962, indicated that there was considerable radioactivity above 70,000 feet. Gamma-ray spectra obtained indicated the source of much of the activity to be the Soviet nuclear tests in late 1961.

Bibliographic Details
Published in:Science
Main Authors: Gustafson, P. F., Keener, R. B., McGinnis, G. A., Soller, R. A.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1962
Subjects:
Online Access:http://dx.doi.org/10.1126/science.138.3538.433
https://www.science.org/doi/pdf/10.1126/science.138.3538.433
Description
Summary:Balloon-borne gamma-ray detection equipment flown from Thule, Greenland, during April 1962, indicated that there was considerable radioactivity above 70,000 feet. Gamma-ray spectra obtained indicated the source of much of the activity to be the Soviet nuclear tests in late 1961.