In a world increasingly facing new challenges at the forefront of plasma scientific research and technological innovation, CNR and ISTP pledge progress and achieve an impact in the integration of research into societal practices and policy

Gamma-ray emission from radio frequency heating experiments with the three-ion schemes at the Joint European Torus

Panontin E.; Rigamonti D.; Nocente M.; Craciunescu T.; Cruz N.; Dal Molin A.; Giacomelli L.; Gorini G.; Iliasova M.; Kazakov Ye.; Khilkevitch E.; Kiptily V.; Perelli Cippo E.; Santos B.; Shevelev A.; Tardocchi M.; Zychor I.; JET Contributors

Conference: 47th EPS Conference on Plasma Physics, EPS 2021, pp. 169 - 172 , Virtual Conference Stiges (Spain) , 21 - 25 June 2021 Year: 2021
ISTP Authors:
Davide Rigamonti
Giuseppe Gorini
Enrico Perelli Cippo
Marco Tardocchi

Keywords: , ,
Research Activitie:

In so called ‘three-ion’ Ion Cyclotron Resonance Heating (ICRH) experiments a third, mi- nority species is efficiently accelerated in plasmas made by two main ions. This is achieved in the vicinity of the ion-ion hybrid layer, where the wave polarization is entirely left handed [1]. At the Joint European Torus (JET) the scheme has so far been demonstrated in H-(DNBI )-D, H-(3He)-D and D-(DNBI )-3He plasmas [2], (DNBI ) and (3He) being the minority species. In the latter scheme, fast deuterons injected by Neutral Beam Injection (NBI) are further accelerated by ICRH up to energies in the MeV range [3]. High D+D neutron rates (between 1015 and 1016 s-1) have been achieved at moderate external heating power [4]. Reversed Shear Alfven Eigenmodes (RSAEs) have also been systematically observed, which is indicative of a non monotonic q-profile induced by an non-inductive current driven by an intrinsic mechanism [4].

ID 455512
PRODUCT TYPE Conference Proceeding
LAST UPDATE 2023-02-03T14:07:39Z