Charged fusion product loss measurements using nuclear activation
- Laboratory for Plasma Physics, Association ''Euratom-Belgian State'', Royal Military Academy, Avenue de la Renaissance, 30 Kunstherlevinglaan, B-1000 Brussels (Belgium)
- Institute for Reference Materials and Measurements (IRMM), Retieseweg 111, B-2440 Geel (Belgium)
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig (Germany)
- Laboratori Nazionali del Gran Sasso, I.N.F.N., S.S. 17/bis km 18-910, I-67010 Assergi (Italy)
- SCKCEN, Boeretang, B-2400 Mol (Belgium)
- Association EURATOM/ENEA, Consorzio RFX, 4-35127 Padova (Italy)
- EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)
- Association Euratom-IPP.CR, Institute of Plasma Physics AS CR, v.v.i., Za Slovankou 3, CZ-18200 Praha 8 (Czech Republic)
In ITER, {alpha} particle loss measurements will be required in order to understand the alpha particle physics. Techniques capable of operating in a fusion reactor environment need further development. Recent experimental studies on JET demonstrated the potential of nuclear activation to measure the flux of escaping MeV ions. New results from MeV ion induced activation of metallic, ceramic, and crystal samples placed near the plasma edge are reported. Activation products were measured as function of orientation with respect to the magnetic field as well as function of the distance to the plasma. Sample activity was measured using ultralow-level gamma-ray spectrometry. Distribution of 14.68 MeV fusion proton induced activation products is strongly anisotropic in agreement with simulations and falls off sharply with increasing distance to the plasma. Prospects for using the technique in ITER are discussed.
- OSTI ID:
- 22058655
- Journal Information:
- Review of Scientific Instruments, Vol. 81, Issue 10; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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