Bowie, C. A., Dendy, R. O. and Hole, M. J. (2016) Delay time embedding of mass loss avalanches in a fusion plasma oriented sandpile model. Physics of Plasmas, 23 . 100703. doi:10.1063/1.4964667 ISSN 1070-664X.
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Abstract
The sandpile paradigm is widely used to model aspects of the phenomenology of magnetically confined fusion (MCF) plasmas, including enhanced confinement, edge pedestals and, potentially,
the impulsive energy and particle release process known as ELMing. Here we identify new points of contact between ELMing and the systemwide avalanches in a sandpile. We compare the quantified response [Calderon et al., Phys. Plasmas 20, 042306 (2014)] to increased fuelling of the time sequence of edge localised mode events in a series of similar Joint European Torus plasmas with the response to increased fuelling of the time sequence of systemwide avalanches in a sandpile model [Chapman et al., Phys. Rev. Lett. 86, 2814 (2001)] that has well established links to MCF plasma phenomenology. Both the probability density functions of inter-event time intervals, and delay time embeddings of event time sequences, at different fuelling rates, show common features and point to shared underlying physics.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics |
| Library of Congress Subject Headings (LCSH): | Plasma confinement, Functions, Abelian, Edge-localized modes |
| Journal or Publication Title: | Physics of Plasmas |
| Publisher: | American Institute of Physics |
| ISSN: | 1070-664X |
| Official Date: | 10 October 2016 |
| Dates: | Date Event 10 October 2016 Published 27 September 2016 Accepted |
| Volume: | 23 |
| Article Number: | 100703 |
| DOI: | 10.1063/1.4964667 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Copyright Holders: | UK Atomic Energy Authority |
| Date of first compliant deposit: | 2 November 2017 |
| Date of first compliant Open Access: | 3 November 2017 |
| Funder: | Australian Research Council (ARC), Australian National University (ANU), Research Councils UK (RCUK), Commission of the European Communities |
| Grant number: | FT0991899 (ARC), EP/I501045 (RCUK) |
| Open Access Version: | |
| URI: | https://wrap.warwick.ac.uk/94037/ |
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