- Sharapov, SE
- Hellsten, T
- Kiptily, VG
- Craciunescu, T
- Eriksson, J
- Fitzgerald, M
- Girardo, JB
- Goloborod'Ko, V
- Hellesen, C
- Hjalmarsson, A
- Johnson, T
- Kazakov, Y
- Koskela, T
- Mantsinen, M
- Monakhov, I
- Nabais, F
- Nocente, M
- Perez Von Thun, C
- Rimini, F
- Santala, M
- Schneider, M
- Tardocchi, M
- Tsalas, M
- Yavorskij, V
- Zoita, V
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© 2016 EURATOM. Dedicated fast ion D-D and D-3He fusion experiments were performed on JET with carbon wall (2008) and ITER-like wall (2014) for testing the upgraded neutron and energetic ion diagnostics of fusion products. Energy spectrum of D-D neutrons was the focus of the studies in pure deuterium plasmas. A significant broadening of the energy spectrum of neutrons born in D-D fast fusion was observed, and dependence of the maximum D and D-D neutron energies on plasma density was established. Diagnostics of charged products of aneutronic D-3He fusion reactions, 3.7 MeV alpha-particles similar to those in D-T fusion, and 14.6 MeV protons, were the focus of the studies in D-3He plasmas. Measurements of 16.4 MeV gamma-rays born in the weak secondary branch of D(3He, γ)5Li reaction were used for assessing D-3He fusion power. For achieving high yield of D-D and D-3He reactions at relatively low levels of input heating power, an acceleration of D beam up to the MeV energy range was used employing 3rd harmonic () ICRH technique. These results were compared to the techniques of D beam injection into D-3He mixture, and 3He-minority ICRH in D plasmas.