Evaluation of neutron sources for ISAGE-in-situ-NAA for a future lunar mission.
Appl Radiat Isot
; 69(11): 1625-9, 2011 Nov.
Article
en En
| MEDLINE
| ID: mdl-21680192
ABSTRACT
For a future Moon landing, a concept for an in-situ NAA involving age determination using the (40)Ar-(39)Ar method is developed. A neutron source (252)Cf is chosen for sample irradiation on the Moon. A special sample-in-source irradiation geometry is designed to provide a homogeneous distribution of neutron flux at the irradiation position. Using reflector, the neutron flux is likely to increase by almost 200%. Sample age of 1Ga could be determined. Elemental analysis using INAA is discussed.
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2011
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