Evaluation of neutron sources for ISAGE-in-situ-NAA for a future lunar mission

► We developed a concept for an in-situ age determination on the Moon. ► 252Cf is chosen as the neutron source for the 40Ar-39Ar-method. ► A sample-in-source geometry is designed to provide homogeneous neutron flux. ► Determination of U, Th, K and Ir using NAA on the Moon is possible.