The conventional method of measurement in 14 MeV activation analysis is to employ gamma-ray spectrometry. The method has the
advantage of good selectivity but this is at the expense of sensitivity. In order to improve sensitivity the authors have
employed Cerenkov counting techniques and by the careful use of absorbers in a specially designed cell together with double
decay procedures have still retained a considerable degree of selectivity. The method has been applied to neutron flux measurement
and to the majority of the elements in the periodic table.