RT Journal Article
T1 Runaway electron generation and control
A1 Esposito, B.
A1 Boncagni, L.
A1 Buratti, P.
A1 Carnevale, D.
A1 Causa, F.
A1 Gospodarczyk, M.
A1 Martín Solís, José Ramón
A1 Popovic, Zana
A1 Agostini, M.
A1 Apruzzese, G
A1 Bin, W.
A1 Cianfarani, C.
A1 De Angelis, R.
A1 Granucci, G.
A1 Grosso, A.
A1 Maddaluno, G.
A1 Marocco, D.
A1 Piergotti, V.
A1 Pensa, A.
A1 Podda, S.
A1 Pucella, G.
A1 Ramogida, G.
A1 Rocchi, G.
A1 Riva, M.
A1 Sibio, A.
A1 Sozzi, C.
A1 Tilia, B.
A1 Tudisco, O.
A1 Valisa, M.
A1 FTU Team, 
AB We present an overview of FTU experiments on runaway electron (RE) generation and control carried out through a comprehensive set of real-time (RT) diagnostics/control systems and newly installed RE diagnostics. An RE imaging spectrometer system detects visible and infrared synchrotron radiation. A Cherenkov probe measures RE escaping the plasma. A gamma camera provides hard x-ray radial profiles from RE bremsstrahlung interactions in the plasma. Experiments on the onset and suppression of RE show that the threshold electric field for RE generation is larger than that expected according to a purely collisional theory, but consistent with an increase due to synchrotron radiation losses. This might imply a lower density to be targeted with massive gas injection for RE suppression in ITER. Experiments on active control of disruption-generated RE have been performed through feedback on poloidal coils by implementing an RT boundary-reconstruction algorithm evaluated on magnetic moments.
PB IOP
SN 0741-3335
YR 2017
FD 2017-01-01
LK https://hdl.handle.net/10016/30356
UL https://hdl.handle.net/10016/30356
LA eng
NO Special issue featuring the invited talks from the 43rd EPS Conference on Plasma Physics, Leuven, 4-8 July, 2016
NO This work was carried out within the framework of the EUROfusion Consortium and received funding from the Euratom research and training programme 2014–2018 under grant agreement No 633053 (Projects MST2-9 and MST2-15). The views and opinions expressed herein do not necessarily reflect those of the European Commission. Additional financial support was received from MINECO (Spain), Projects No. ENE2012-31753 and ENE2015-66444-R.
DS e-Archivo
RD 18 jul. 2024