The status of filtered neutron beam studies

Studies in the field of filtered neutron beams undertaken prior to 1981 are briefly reviewed. Since 1981 the uranium filter has been studied in more detail and calculations have been made which relate to boron-neutron capture therapy. Further published work has confirmed theoretical predictions of the cross sections of various single isotopes which could be used as low energy neutron filters. A meeting of specialists in 1983 confirmed an interest in filtered neutron beams in many disciplines and recommended that a working party be set up to identify and promote developments in the field