Elemental mapping of the moon using gamma rays : past, present, and future /

Conference · Mon Jan 01 04:00:00 EST 2001

OSTI ID:975526

Reedy, R C ^[1]

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1. Robert C.

The energies and intensities of gamma rays From a planetary surface can be used to infer the elemental composition of an object with no or a thin atmosphere. The Apollo gamma-ray spectrometers in 1972 and 1973 produced many of the results for the distribution of elements in the Moon that are now generally well accepted. Lunar Prospector in 1998 and 1999 globally mapped the Moon with gamma rays and neutrons. Both missions used spectrometers with poor energy resolution ({approx}8-10%). The Japanese plan to send a high-resolution germanium gamma-ray spectrometer to the Moon in about 2004 on their SELENE mission. However, little has been done since the 1970s on the models used to unfold planetary gamma-ray spectra. More work needs to be done on understanding what to expect in future gamma-ray spectra and how to unfold such data.

• Research Organization: Los Alamos National Laboratory
• Sponsoring Organization: DOE
• OSTI ID: 975526
• Report Number(s): LA-UR-01-3175
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DISTRIBUTION
ENERGY RESOLUTION
GAMMA ASTRONOMY
GAMMA RADIATION
GAMMA SPECTROMETERS
GERMANIUM
MOON
NEUTRONS
SPECTRA
SPECTROMETERS