Water detection at the moon, Mars and comets with a combined neutron gamma ray instrument

Details Water detection at the moon, Mars and comets with a combined neutron gamma ray instrument Water detection at the moon, Mars and comets with a combined neutron gamma ray instrument

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..242m&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 242-243 (SEE N92-10728 01-91)

Physics

Geophysics

Chemical Composition, Comets, Detection, Gamma Ray Spectrometers, Mars (Planet), Moon, Neutron Counters, Spectroscopy, Water, Cylindrical Bodies, Gamma Rays, Neutrons, Thickness

Scientific paper

Measuring the fluxes of thermal and epithermal neutrons at a planetary object in conjunction with gamma-ray spectroscopic observations will provide information about the chemical composition of the surface which is less model dependent than the gamma ray measurements by themselves. Researchers devised a passive neutron detector for this purpose. An experimental model was designed and built. Three variables provided the basis for a set of experiments: thickness of the Sm and B layers, the presence or absence of the ACS, and the position of the source relative to the PND's cylindrical axis. Experimental results are given.

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