The phenomenology of reconnection events, associated to relaxations in high-current (~1.5 MA) plasmas of the reversed-field pinch device RFX-mod, is shown. Each relaxation event can be described as a series of stages starting in the core and propagating towards the plasma edge. In an initial stage (trigger), the evolution of the q profile brings resonant layers closer together, allowing for an interaction of the current sheets associated to tearing modes at the respective rational values of q. The phase locking of the resonant modes then initiates the reconnection process that, once started, changes the magnetic topology bringing the initially helical state to a more chaotic configuration.
The phenomenology of reconnection events in the reversed field pinch
Momo B.; Isliker H.; Cavazzana R.; Zuin M.; Cordaro L.; Lopez-Bruna D.; Martines E.; Predebon I.; Rea C.; Spolaore M.; Vlahos L.; Zanca P.
Related products
-
Nuclear fusion (Online) 61 (4), pp. 046020-1 - 046020-12 Year: 2021 DOI: 10.1088/1741-4326/abe3c7
Onset of tearing modes in plasma termination on JET: The role of temperature hollowing and edge cooling
Pucella G.; Buratti P.; Giovannozzi E.; Alessi E.; Auriemma F.; Brunetti D.; Ferreira D.R.; Baruzzo M.; Frigione D.; Garzotti L.; Joffrin E.; Lerche E.; Lomas P.J.; Nowak S.; Piron L.; Rimini F.; Sozzi C.; Van Eester D.
-
Journal of plasma physics (Print) 87 (1), pp. 825870101-1 - 825870101-20 Year: 2021 DOI: 10.1017/S0022377820001567
Local and global properties of energy transfer in models of plasma turbulence
Vasconez, Christian L.; Perrone, D.; Marino, R.; Laveder, D.; Valentini, F.; Servidio, S.; Mininni, P.; Sorriso-Valvo, L.
-
The astrophysical journal. Letters (Print) 912 (2), pp. L21-1 - L21-8 Year: 2021 DOI: 10.3847/2041-8213/abf7d1
Evolution of Solar Wind Turbulence from 0.1 to 1 au during the First Parker Solar Probe-Solar Orbiter Radial Alignment
Telloni, Daniele; Sorriso-Valvo, Luca; Woodham, Lloyd D.; Panasenco, Olga; Velli, Marco; Carbone, Francesco; Zank, Gary P.; Bruno, Roberto; Perrone, Denise; Nakanotani, Masaru; Shi, Chen; D’Amicis, Raffaella; De Marco, Rossana; Jagarlamudi, Vamsee K.; Steinvall, Konrad; Marino, Raffaele; Adhikari, Laxman; Zhao, Lingling; Liang, Haoming; Tenerani, Anna; Laker, Ronan; Horbury, Timothy S.; Bale, Stuart D.; Pulupa, Marc; Malaspina, David M.; Macdowall, Robert J.; Goetz, Keith; De Wit, Thierry Dudok; Harvey, Peter R.; Kasper, Justin C.; Korreck, Kelly E.; Larson, Davin; Case, Anthony W.; Stevens, Michael L.; Whittlesey, Phyllis; Livi, Roberto; Owen, Christopher J.; Livi, Stefano; Louarn, Philippe; Antonucci, Ester; Romoli, Marco; O’Brien, Helen; Evans, Vincent; Angelini, Virginia
English
Italiano