Determination of Trace Elements and Cosmogenic Radionuclides in Meteorites by Neutron Activation Analysis and Gamma Spectrometry

In the meteorites trace elements have been determined by instrumental and radiochemical N.A.A. and the cosmogenic radioactivity of 22Na, 26Al, 48V, and 54Mn are measured by low-level gamma spectrometry in the two meteorites Hohenlangenbeck and Trebbin fallen November 1985 and March 1988 onto the territory of the GDR. The contents of Rb and Cs in the meteorite Hohenlangenbeck are relatively high indicating a low condensation temperature. Becuase of the small activity ratio of 22Na/26Al a lower particle flux in its orbit during the last five years is assumed.