RADIOACTIVE NUCLIDES PRODUCED BY COSMIC RAYS IN SPUTNIK 4

Journal Article · Sun Sep 01 00:00:00 EDT 1963 · Journal of Geophysical Research (U.S.)

DOI:https://doi.org/10.1029/JZ068i017p05069· OSTI ID:4629897

Shedlovsky, J P; Kaye, J H

The Sputnik 4 satellite re-entered the earth's atmosphere on September 5, 1962, after 843 days in orbit. From a portion of the recovered iron mass, a number of radioactive nuclides were measured after wet chemical separations. These activities are compared with those found in the Aroos iron meteorite. The ratio of saturation activities Sputnik 4/ Aroos increases, with increasing A, from 0.20 for Ar/sup 37/ to 0.68 for Fe/sup 55/. It appears that this increase is caused by low-energy solar-flare particles. The Co sup 56+57+58/ ratio is 0.098, which reflects the different nickel contents of the two objects. The sample contains 40 dpm/kg Co/sup 60/, which is of noncosmogenic origin. (auth)

• Research Organization: Carnegie Inst. of Tech., Pittsburgh
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-037919
• OSTI ID: 4629897
• Report Number(s): TID-17694; 0022-1406
• Journal Information: Journal of Geophysical Research (U.S.), Vol. Vol: 68; Other Information: TID-17694. Orig. Receipt Date: 31-DEC-63
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

PHYSICS
ARGON 37
COBALT 56
COBALT 57
COBALT 58
COBALT 60
COSMIC RADIATION
EMISSION
INTERACTIONS
IRON
IRON 55
MEASURED VALUES
METEORITES
NICKEL
PRODUCTION
QUALITATIVE ANALYSIS
RADIOACTIVITY
RADIOISOTOPES
RE-ENTRY
SATELLITES
SEPARATION PROCESSES
SOLAR FLARES
SUN