FALL-OUT OVER NORWAY FROM HIGH-YIELD NUCLEAR EXPLOSIONS

Journal Article · Sat Mar 19 04:00:00 EST 1960 · Nature

DOI:https://doi.org/10.1038/185805a0· OSTI ID:4175814

Hvinden, T; Hveding, D; Lillegraven, A; Small, S H

Results are reported from measurements of fall-out from high-yield nuclear explosions made in Norway between September 1956 and January 1960. Fall- out materials which rise well into the stratosphere after high-yield test explosions began to reach the lower stratosphere over south-east Norway shortly afterwards. The radioactivity in the lower stratosphere increased to a peak about one to two months after the explosions and then decreased with an effective half life of about a month. The radioactivity of fallout materials in air near the ground increased shortly after the explosion, but much more slowly, and reached a peak considerably lower than the peak in the lower stratosphere after six to seven months. (C.H.)

• Research Organization: Norwegian Defence Research Establishment, Kjeller
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-011432
• OSTI ID: 4175814
• Journal Information: Nature, Journal Name: Nature Vol. Vol: 185
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AIR
ATMOSPHERE
BIOLOGY AND MEDICINE
FALLOUT
FISSION PRODUCTS
HALF-LIFE
LEVELS
MEASURED VALUES
NORWAY
NUCLEAR EXPLOSIONS
QUANTITY RATIO
RADIOACTIVITY
SOILS
STRATOSPHERE
VARIATIONS