Composition from fast neutrons: Application to the Moon
- 1 October 2001
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 28 (19) , 3797-3800
- https://doi.org/10.1029/2001gl013072
Abstract
Planetary neutron leakage fluxes provide a measure of surface composition. However to be used in geological studies, a quantitative relationship between measured fluxes and surface composition is needed. The present work shows that neutron production is expected to be a function of the atomic mass, and that the fast leakage flux in the energy range between 0.6 and 8 MeV is linearly related to the average soil atomic mass. This result is consistent with laboratory measurements, and with Lunar Prospector observations of the Moon. When calibrated with returned lunar samples, this relationship is used to construct a map of the average atomic mass of lunar soils.Keywords
This publication has 7 references indexed in Scilit:
- Chemical information content of lunar thermal and epithermal neutronsJournal of Geophysical Research, 2000
- Thorium abundances on the lunar surfaceJournal of Geophysical Research, 2000
- High‐energy neutrons from the MoonJournal of Geophysical Research, 2000
- Lunar fast neutron leakage flux calculation and its elemental abundance dependenceJournal of Geophysical Research, 2000
- Lunar Prospector: OverviewScience, 1998
- The GEANT-CALOR interface and benchmark calculations of ZEUS test calorimetersNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1994
- Yield of Neutrons per Interaction in U, Pb, W, and Sn by Protons of Six Energies between 250 and 900 Mev Selected from Cosmic RadiationPhysical Review B, 1960