In situ neutron activation analysis of and the neutron capture cross-section for90Sr+

Neutron activation analysis has been investigated as an in situ method for determination of90Sr. The thermal neutron capture cross-section for the90Sr(n, γ)91Sr reaction has been measured to be 14.0±2.4 mb which is in disagreement with the currently accepted literature value. The suitability of this reaction and the fast neutron reactions90Sr(n, p)90Rb and90Sr(n, α)87Kr, for the in situ determination of90Sr is discussed.