Articolo in rivista, 2022, ENG, 10.1088/1741-4326/ac47b4

Overview of JET results for optimising ITER operation

Mailloux J.; et al.

Please see the annexed open access article.

The JET 2019-2020 scientific and technological programme exploited the results of years of concerted scientific and engineering work, including the ITER-like wall (ILW: Be wall and W divertor) installed in 2010, improved diagnostic capabilities now fully available, a major neutral beam injection upgrade providing record power in 2019-2020, and tested the technical and procedural preparation for safe operation with tritium. Research along three complementary axes yielded a wealth of new results. Firstly, the JET plasma programme delivered scenarios suitable for high fusion power and alpha particle (?) physics in the coming D-T campaign (DTE2), with record sustained neutron rates, as well as plasmas for clarifying the impact of isotope mass on plasma core, edge and plasma-wall interactions, and for ITER pre-fusion power operation. The efficacy of the newly installed shattered pellet injector for mitigating disruption forces and runaway electrons was demonstrated. Secondly, research on the consequences of long-term exposure to JET-ILWplasma was completed, with emphasis on wall damage and fuel retention, and with analyses of wall materials and dust particles that will help validate assumptions and codes for design and operation of ITER and DEMO. Thirdly, the nuclear technology programme aiming to deliver maximum technological return from operations in D, T and D-T benefited from the highest D-D neutron yield in years, securing results for validating radiation transport and activation codes, and nuclear data for ITER.

Nuclear fusion (Online) 62 , pp. 042026-1–042026-34

Keywords

overview, D-T preparation, tritium operations, plasma facing components (PFC), nuclear technology, JET with ITER-like wall, isotope

CNR authors

Rigamonti Davide, Schmuck Stefan, Brunetti Daniele, Mariani Alberto, Lazzaro Enzo, Murari Andrea, Sozzi Carlo, Ghezzi Francesco Mauro, Gervasini Gabriele, Innocente Paolo, Vianello Nicola, Predebon Italo, Terranova David, Bonfiglio Daniele, Nowak Silvana, Laguardia Laura, Perelli Cippo Enrico, Alessi Edoardo, Giacomelli Luca Carlo, Causa Federica, Rebai Marica, Muraro Andrea, Uccello Andrea, Auriemma Fulvio, Vincenzi Pietro, Valisa Marco, Tardocchi Marco, Carraro Lorella, Mantica Paola

CNR institutes

ISTP – Istituto per la Scienza e Tecnologia dei Plasmi