Special Issue "Plasma Disruptions"

A special issue of Plasma (ISSN 2571-6182).

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 1183

Special Issue Editor

Dr. Valeria Riccardo
E-Mail Website
Guest Editor
Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, NJ 08543, USA
Interests: plasma disruptions; disruption mitigation; runaway electrons; plasma facing components

Special Issue Information

Dear Colleagues,

In tokamaks, instabilities can develop under certain operational conditions or as a consequence to a loss of control, causing the plasma to disrupt. The rapid release of the energy stored in the plasma during a disruption has the potential to cause surface melting of plasma-facing components and will cause high electromagnetic loads. The success of future tokamaks will depend on establishing reliable and effective strategies to predict and avoid disruptions and, as a last resource, to mitigate disruptions. Significant effort has been devoted to understanding the causes of disruptions and developing tools for their avoidance and mitigation, as well as to characterizing disruption loads and developing designs compatible with a spectrum of possible disruption outcomes through the life of the device.

Dr. Valeria Riccardo
Guest Editor

Manuscript Submission Information

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Published Papers (1 paper)

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Research

Article
A Few Points of the Engineering Logic Discussed in ITER EDA on Evaluation of Halo- and AVDE-Induced Loads in Tokamaks
Plasma 2021, 4(3), 366-374; https://doi.org/10.3390/plasma4030025 - 22 Jun 2021
Cited by 1 | Viewed by 860
Abstract
All tokamaks are designed to withstand a certain number of energetic electromagnetic (EM) transients caused by uncontrolled terminations of plasma pulses, including symmetric and asymmetric plasma vertical displacement events: VDEs and AVDEs. These events generate significant pulsed EM loads in all conductive components [...] Read more.
All tokamaks are designed to withstand a certain number of energetic electromagnetic (EM) transients caused by uncontrolled terminations of plasma pulses, including symmetric and asymmetric plasma vertical displacement events: VDEs and AVDEs. These events generate significant pulsed EM loads in all conductive components and coils. Axially symmetric transient EM loads induced by VDEs without Halo current have been calculated well since the 1980s; however, Halo-related EM load components and lateral loads associated with AVDEs still cause discussions. The author worked on fast plasma and EM transients in tokamaks quite a while ago then deviated to other areas but has been keeping track of the topic since. He is aware of discussions of the modelling of Halo currents and of significant scatter present in current estimates for AVDE-induced lateral loads and contends that some points of engineering logic formulated earlier on this topic may help reduce these uncertainties. This article summarises a few points of the engineering understanding developed in informal discussions within the ITER EDA team with the purpose to preserve these points for all tokamak developments. Full article
(This article belongs to the Special Issue Plasma Disruptions)
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