Use of the -Rays from the ⁶Li(t,p₁)⁸Li* Reaction for Studying Knock-On Tritons in the Core of Fusion Plasmas

We discuss use of -rays for diagnosing energetic particles in burning plasma. Our attention is focused on 0.981-MeV -rays emitted in the ⁶Li(t,p₁)⁸Li* reaction governed in the plasma by energetic tritons. These quanta are shown to have an important application for diagnosing knock-on tritons and -particles confined in burning DT plasmas.