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Subsurface In Situ Elemental Composition Measurements with PINGThis paper describes the Probing In situ with Neutron and Gamma rays (PING) instrument, that can measure the subsurface elemental composition in situ for any rocky body in the solar system without the need for digging into the surface. PING consists of a Pulsed Neutron Generator (PNG), a gamma ray spectrometer and neutron detectors. Subsurface elements are stimulated by high-energy neutrons to emit gamma rays at characteristic energies. This paper will show how the detection of these gamma rays results in a measurement of elemental composition. Examples of the basalt to granite ratios for aluminum and silicon abundance are provided.
Document ID
20130013637
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Parsons, Ann (NASA Goddard Space Flight Center Greenbelt, MD, United States)
McClanahan, Timothy (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bodnarik, Julia (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Evans, Larry (Computer Sciences Corp. Greenbelt, MD, United States)
Nowicki, Suzanne (Michigan Univ. Ann Arbor, MI, United States)
Schweitzer, Jeffrey (Connecticut Univ. Storrs, CT, United States)
Starr, Richard (Catholic Univ. of America Washington, DC, United States)
Date Acquired
August 27, 2013
Publication Date
March 2, 2013
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
GSFC-E-DAA-TN7907
Report Number: GSFC-E-DAA-TN7907
Meeting Information
Meeting: IEEE Aerospace Conference
Location: Big Sky, MT
Country: United States
Start Date: March 2, 2013
End Date: March 9, 2013
Sponsors: Prognostics and Health Management Society (PHM), Institute of Electrical and Electronics Engineers, American Inst. of Aeronautics and Astronautics
Funding Number(s)
CONTRACT_GRANT: NNG06EA09C
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Public Use Permitted.

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