Contributo in atti di convegno, 2023, ENG

Prompt effects of partially ionised W dust in the JET shallow SOL

Causa F.; Gervasini G.; Ghezzi F.; Lazzaro E.; Kumpulainen H.; Borodin D.; Borodkina I.; Douai D.; Huber A.; Pawelec E.; Solano E.R.; Sertoli M.; Widdowson A.

CNR ISTP - Istituto per la Scienza e la Tecnologia dei Plasmi, Milano, Italy; Aalto University, Espoo, Finland; Forschungszentrum Julich GmbH, Julich, Germany; Institute of Plasma Physics of the CAS, Prague, Czech Republic; CEA, Saint-Paul-Lez-Durance, France; University of Opole, Poland; Laboratorio Nacional de Fusion, Madrid, Spain; Tokamak Energy Ltd, Abingdon, UK; Culham Science Centre, Abingdon, UK.

Transient radiative bursts have been observed in systematic time-correlation with dust influx across the separatrix in JET ILW campaigns, [1]. Dust influx from PFC materials can produce transient temperature and density perturbations in the SOL. Are such local perturbations detectable by existing diagnostics? Could they be used as an additional monitor for safe operation? Results from the model illustrated here indicate that local densities of dust can produce bursts of acoustic waves in the low-temperature, low-density SOL, that could be detected by existing diagnostics.

49th European Conference on Plasma Physics (EPS 2023), pp. 1–4, Bordeaux, France, 3-7 July 2023

Keywords

partially ionised W dust, JET, SOL

CNR authors

Lazzaro Enzo, Ghezzi Francesco Mauro, Gervasini Gabriele, Causa Federica

CNR institutes

ISTP – Istituto per la Scienza e Tecnologia dei Plasmi