On the mass spectrum of fission xenon in the Pasamonte meteorite - Eberhardt, P.; Geiss, J. (Elsevier)
The xenon abundances determined by Rowe and Bogard in Pasamonte II are corrected for trapped as well as for spallation xenon, and the following mass spectrum for the fission component is obtained: ^1^3^1Xe = 33.5 +/- 3; ^1^3^2Xe = 95 +/- 9; ^1^3^4Xe = 91 +/- 2.5; ^1^3^6Xe = 100. The correction for spallation xenon increases the ^1^3^2Xe yield considerably. The Pasamonte II fission spectrum differs from the spontaneous ^2^3^8U and thermal neutron ^2^3^5U fission spectrum, indicating that long-lived transuranic elements have contributed to the fission xenon.
http://linkinghub.elsevier.com/retrieve/pii/0012-821X(66)90083-5
Keywords: TE-TZ; U