Abstract
Three experiments with accelerator mass spectrometry (AMS) are described. (1) The cross section of the reaction 60N(n,2n)59Ni with 14.8 MeV neutrons was measured with AMS to be 410+or-100 mb in agreement with the predictions of calculations. On the basis of a radioactivity measurement of 59Ni performed for the same reaction by another group, a half-life of 290000+or-100000 y was deduced for 59Ni. (2) Tests of the Pauli exclusion principle were performed by looking for non-Paulian atoms with three electrons in the K shell and for non-Paulian nuclei with three protons or three neutrons in the nuclear 1 s1/2 shell.
Export citation and abstract BibTeX RIS