Accession Number:

AD0432118

Title:

PROJECT STAR DUST.

Descriptive Note:

Quarterly rept. no. 6,

Corporate Author:

ISOTOPES INC WESTWOOD N J

Report Date:

1962-11-01

Pagination or Media Count:

32.0

Abstract:

Recent Progress in Project Star Dust is briefly described, including modification of the model of atmospheric mixing and circulation. The distributions of strontium-90 and of manganese-54 in the Star Dust sampling corridor during the first third of 1962 and the distribution of strontium-90 during the second third of 1962 are portrayed. The stratospheric burden of strontium-90 is calculated to be 1.8 to 2.0 megacuries during the first third of 1962, with 1.1 to 1.3 megacuries attributable to the 1961 Soviet tests. The stratospheric burden of manganese-54 during the first third of 1962 is calculated to be about 11 megacuries or about 15 megacuries if the data are corrected for decay to 15 October 1961. Calculated stratospheric burdens of iron-55 and antimony-124 are approximately 22 megacuries and 10 megacuries respectively or 24 megacuries and 51 megacuries respectively if corrected to 15 October 1961. The stratospheric burden of strontium-90 during the second third of 1962 is calculated to be less than 3.7 megacuries. Carbon14 concentrations in ground level air at Washington Township, New Jersey during 1960-1962 are given. The tendency of these concentrations to decrease during the last months of 1960 and 1961 and the gradual increase in the concentrations during 1962 are discussed. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE