Charged particles losses were observed for the first time on JET using an activation technique. Remarkably, these losses were measured in the ceiling of JET tokamak in D-3He plasmas (Bt 3.35T, Ip 2.1MA and in standard field configuration). This technique combined with ultra low-level measurements pushes detection levels significantly lower. Two radionuclides were identified as produced dominantly from charged particles reactions. Quantitative data on charged particle losses were obtained for the first time. Angular distribution with respect to the magnetic field and distribution versus the distance to plasma edge were measured as well. Modelling work of charged particles losses has begun. Some modelling issues need to be addressed. It is unclear yet whether classical drift losses will be sufficient to account for the measured losses. Finally, the technique has wide potential in view of applications to ITER and further development and optimisation is expected on JET.
|Publication status||Published - 2007|
|Event||34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 - , Poland|
Duration: 1 Jan 2007 → …
|Conference||34th European Physical Society Conference on Plasma Physics 2007, EPS 2007|
|Period||1/1/07 → …|
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
Bonheure, G., Wieslander, E., Hult, M., Gasparro, J., Marissens, G., Arnold, D., ... Murari, A. (2007). MeV ion losses measurements in JET using activation technique. Paper presented at 34th European Physical Society Conference on Plasma Physics 2007, EPS 2007, Poland.