Reconnection and fast particle production in tokamak and solar plasmas

Reconnection and fast particle production in tokamak and solar plasmas

Reconnection and fast particle production in tokamak and solar plasmas 150 150 UKAEA Opendata
UKAEA-CCFE-PR(18)43

Reconnection and fast particle production in tokamak and solar plasmas

Detailed in situ studies of magnetic reconnection and particle acceleration, which play a crucial role in the release and redistribution of energy in solar flares, can be performed in tokamak plasmas under conditions resembling those of the flaring solar corona. Recent measurements and modelling of fast particle production during reconnection events in the Mega-Amp Spherical Tokamak (MAST) are described. Specifically, observations in this device of electron acceleration during edge localised modes, and of both ion and electron acceleration during merging-compression plasma start-up, are presented, and possible implications of these studies for particle acceleration in flares are discussed. The results from MAST lend weight to the conjecture that large numbers of ions are accelerated to sub-MeV energies in flares.

Collection:
Journals
Journal:
Advances in Space Research
Publisher:
Elsevier
Published date:
07/09/2018