NEUTRON FLUX AND ENERGY SPECTRUM ABOVE THE ATMOSPHERE

Journal Article · Fri Mar 01 04:00:00 EST 1963 · Journal of Geophysical Research (U.S.)

DOI:https://doi.org/10.1029/JZ068i005p01221· OSTI ID:4723095

Bame, S J; Conner, J P; Brumley, F B; Hostetler, R L; Green, A C

Neutron detectors consisting of B/sup 10/F/sub 3/ proportional counters and Li/sup 6/I(Eu) scintillation counters, surrounded by varying amounts of moderating material, were flown above the atmosphere in a number of vehicles. The shape of the neutron energy spectrum given by Hess, Canfield, and Lingenfelter has been verified within experimental limitations, and the flux of neutrons at 650-km altitude and 36.5 deg N geomagnetic latitude has been determined to be 0.28 plus or minus 30 per cent neutrons per cm/sup 2/ sec, whereas at 320-km altitude and 8.7 deg S the flux is 0.12 plus or minus 40 per cent neutrons per cm/sup 2/ sec. This flux determination gives an absolute neutron flux a factor of 3 lower than previously reported determinations. (auth)

• Research Organization: Los Alamos Scientific Lab., N. Mex.
• NSA Number: NSA-17-016922
• OSTI ID: 4723095
• Report Number(s): LADC-5456; 0022-1406
• Journal Information: Journal of Geophysical Research (U.S.), Journal Name: Journal of Geophysical Research (U.S.) Vol. Vol: 68; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

BORON 10
BORON FLUORIDES
COSMIC RADIATION
DISTRIBUTION
EARTH
ENERGY
EUROPIUM
GEOMAGNETIC COORDINATES
LEVELS
LITHIUM 6
LITHIUM IODIDES
MAGNETIC FIELDS
MEASURED VALUES
MODERATORS
NEUTRON DETECTION
NEUTRONS
PHYSICS
PROPORTIONAL COUNTERS
SCINTILLATION COUNTERS
SPACE VEHICLES