Author/Authors :
Feldman، نويسنده , , W.C. and Barraclough، نويسنده , , B.L. and Fuller، نويسنده , , K.R. and Lawrence، نويسنده , , D.J. and Maurice، نويسنده , , S. and Miller، نويسنده , , M.C. and Prettyman، نويسنده , , T.H. and Binder، نويسنده , , A.B.، نويسنده ,
Abstract :
Gamma-ray and neutron spectrometers (GRS and NS, respectively) are included in the payload complement of Lunar Prospector (LP) that is currently orbiting the Moon. Specific objectives of the GRS are to map abundances of O, Si, Fe, Ti, U, Th, K, and perhaps, Mg, Al, and Ca, to depths of about 20 cm. Those of the NS are to search for water ice to depths of about 50 cm near the lunar poles and to map regolith maturity. The designs of both spectrometers are described and their performance in both the laboratory and in lunar orbit are presented.
