
2.3 Associated Alpha Particle–Tagged Neutron Beams
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neutron in the nuclear reaction there is an associated α-particle traveling in the
opposite direction. e detection of the α-particle at a given laboratory angle, or
cone, denes a neutron direction or neutron beam. It looks simple and obvious;
however, measurements have shown the smaller number of α-particles then
expected one-to-one ratio. is is especially of importance if the reaction is used
as a neutron source for the study of neutron-induced reactions with detection of
α-particles for the purpose of neutron beam intensity monitoring.
e use of associated alpha particles to dene elect ...