Accession Number:

AD0668483

Title:

THE ATMOSPHERIC AND LEAKAGE FLUX OF NEUTRONS PRODUCED IN THE ATMOSPHERE BY COSMIC RAY INTERACTIONS,

Descriptive Note:

Corporate Author:

MILAN UNIV (ITALY) ISTITUTO DI SCIENZE FISICHE

Report Date:

1967-12-15

Pagination or Media Count:

38.0

Abstract:

The curve of the integrated neutron flux in the thermal to 20 MeV energy range, as a function of the atmospheric depth from sea level up to 0.1 mbar, has been obtained, assuming as energy spectrum that predicted by Newkirk. The instrument employed is a combination of an hydrogeneous moderator with a slow neutron detector, with anticoincidence rejection of background events. Four balloon flights have been carried out in March 1966 one rocket flight in July 1966. With this flight the curve has been extended to 0.1 mbar from 6 mbar, attained with the balloon flights. The neutron flux as a function of the atmospheric depth is given, at 5.3 GV geomagnetic cut-off rigidity, in quiet Sun conditions. Author

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE