Accession Number : AD0602653

Title :   MEASUREMENT OF THE COSMIC RAY NEUTRON FLUX AT 45 DEGREES GEOMAGNETIC LATITUDE.

Descriptive Note : Technical rept.

Corporate Author : MILAN UNIV (ITALY)

Personal Author(s) : Boella,G. ; Antoni,G. Degli ; dilworth,C. ; Panetti,M. ; Scarsi,L.

Report Date : 11 MAY 1964

Pagination or Media Count : 40

Abstract : In a series of balloons flights with a light-weight neutron detector, the flux of the cosmic ray neutrons in the atmosphere, at 45 degrees geomagnetic latitude, was investigated. The energy spectrum proposed by Newkirk (1963) was found to be in agreement with the experimental results. Values of the neutron flux through the atmosphere are given and, by extrapolation to zero pressure, the neutron leakage was determined as (0.45 = 0.07) neutron sq. cm sec. at the top of the atmosphere. A detailed study of the previous experiments on albedo neutrons which led to conflicting results was made and was shown that the apparent discrepancies can be accounted for by instrumental bias and locally produced neutrons. (Author)

Descriptors :   (*COSMIC RAYS, NEUTRON FLUX), (*NEUTRON FLUX, COSMIC RAYS), ALBEDO, NEUTRONS, ATMOSPHERES, MEASUREMENT, METEOROLOGICAL BALLOONS, NEUTRON DETECTORS, GEOPHYSICS, NUCLEAR PHYSICS, ITALY

Distribution Statement : APPROVED FOR PUBLIC RELEASE