  The paper considers an opportunity of detecting explosives by using radiation
capture of a neutron with nitrogen nucleus. Proton LINAC is offered as the
neutron source with the following parameters: proton energy five Mega electron
Volts , beam pulse current one and seven-tenths milliampere, duration of the
current pulse two hundreds microseconds, repetition rate fifty Hertz. The
reaction in which neutrons are formed is lithium (p,n) beryllium. It is shown
that this neutron source will have the intensity of ten to the twelfth degree
neutron per second that will allow one to detect explosives of the size of a
tennis ball.
