THE NATURAL RADIOACTIVITY OF RAIN WATER

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Acad. Rep. Populare Romine, Filiala Iasi, Studii Cercetari Stiint., Fiz. Stiinte Tehn.

OSTI ID:4718535

Blanariu, D

The natural radioactivity of rain at Jassy in the summer of 1961 was investigated. The samples were always collected within 10 min. and then a fixed quantity of the liquid was evaporated to dryness. The BETA activity of RaB and RaC was measured with a thin-window G-M counter. The specific activity of the 29 samples measured varied between 0.88 x 10/sup -11/ and 10.11 x 10/sup -11/ C/ml, with a mean value of 4.02 x 10/sup -11/ C/ml. The effective half life of the activity was 25 to 36 minutes. It was found that the specific activity of rain is inversely proportional to their intensity (as expressed in ml/cm/sup 2//min). During rainfall there was no systematic variation in specific activity; this indicates that the main raindrop activation mechanism occurs in the cloud system. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-021903
• OSTI ID: 4718535
• Journal Information: Acad. Rep. Populare Romine, Filiala Iasi, Studii Cercetari Stiint., Fiz. Stiinte Tehn., Journal Name: Acad. Rep. Populare Romine, Filiala Iasi, Studii Cercetari Stiint., Fiz. Stiinte Tehn. Vol. Vol: 12
• Country of Publication: Country unknown/Code not available
• Language: Rumanian

Related Subjects

BETA DECAY
BETA PARTICLES
BISMUTH 214
DISTRIBUTION
EVAPORATION
GEIGER-MUELLER COUNTERS
GEOLOGY, MINERALOGY, AND METEOROLOGY
HALF-LIFE
LEAD 214
MEASURED VALUES
MONITORING
RADIOACTIVITY
RAIN
SAMPLING
VARIATIONS
WATER
WINDOWS