ANALYTICAL APPLICATIONS OF GUIDED NEUTRON BEAMS

Guided beams of thermal and cold neutrons have become available to ana lysts at several reactors during the past decade. The very pure beams from these guides have led to lower backgrounds and higher sensitiviti es for prompt-gamma activation analysis (PGAA), and thus to new applic ations for this technique. For analytical accuracy, the details of neu tron scattering within the sample need to be taken into account; this consideration is especially important for most materials of biological origin.