Neutrons in the moonNeutron fluxes for energies between 15 MeV and thermal at depths of 0 to 300 g/sq cm in the moon are calculated by the discrete ordinate mathod with the ANISN code. With the energy spectrum of Lingenfelter et al. (1972). A total neutron-production rate for the moon of 26 plus or minus neutrons/sq cm sec is determined from the Ar-37 activity measurements in the Apollo 16 drill string, which are found to have a depth dependence in accordance with a neutron source function that decreases exponentially with an attenuation length of 155 g/sq cm.
Document ID
19740040198
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kornblum, J. J. (New York, State University Stony Brook, N.Y., United States)
Fireman, E. L. (Smithsonian Astrophysical Observatory Cambridge, Mass., United States)
Levine, M.
Aronson, A. (Brookhaven National Laboratory Upton, N.Y., United States)