Fluxes of fast and epithermal neutrons from Lunar Prospector: evidence for water ice at the lunar poles.

@article{Feldman1998FluxesOF,
  title={Fluxes of fast and epithermal neutrons from Lunar Prospector: evidence for water ice at the lunar poles.},
  author={William Charles Feldman and Sylvestre Maurice and Alan B. Binder and Bruce L. Barraclough and Richard Elphic and David J. Lawrence},
  journal={Science},
  year={1998},
  volume={281 5382},
  pages={
          1496-500
        }
}
Maps of epithermal- and fast-neutron fluxes measured by Lunar Prospector were used to search for deposits enriched in hydrogen at both lunar poles. Depressions in epithermal fluxes were observed close to permanently shaded areas at both poles. The peak depression at the North Pole is 4.6 percent below the average epithermal flux intensity at lower latitudes, and that at the South Pole is 3.0 percent below the low-latitude average. No measurable depression in fast neutrons is seen at either pole… 
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