Validation of the strike point position estimation with the local expansion method for MAST upgrade on the DIII-D tokamak

Anand, H.; Eldon, D.; Kochan, M.; McArdle, G.; Pangione, L.; Wang, H. Q.

doi:10.1016/j.fusengdes.2022.113086

Title: Validation of the strike point position estimation with the local expansion method for MAST upgrade on the DIII-D tokamak

Journal Article · Mon Mar 07 00:00:00 EST 2022 · Fusion Engineering and Design

DOI:https://doi.org/10.1016/j.fusengdes.2022.113086· OSTI ID:1977151

^[1];

^[1]; Kochan, M. ^[2]; McArdle, G. ^[2]; Pangione, L. ^[2]; Wang, H. Q. ^[1]

General Atomics, San Diego, CA (United States)
Culham Science Centre, Abingdon (United Kingdom). Culham Centre for Fusion Energy (CCFE), EURATOM/UKAEA Fusion Association

A local expansion method has been proposed for estimating the strike point position for the advanced divertor configuration on the MAST Upgrade tokamak. The paper discusses the application and assesses the performance of the technique on a long-legged divertor plasma configuration on an operating device - the DIII-D tokamak. A comparison of the spatial location of the outer strike point estimated with the local expansion method against the plasma boundary reconstruction and divertor diagnostics on the DIII-D tokamak is reported. A good agreement with the equilibrium reconstruction and diagnostic data is achieved with respect to estimation of the spatial location of the outer strike point for the long-legged divertor plasma discharge.

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Research Organization:: General Atomics, San Diego, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); Engineering and Physical Sciences Research Council (EPSRC)

Grant/Contract Number:: SC0018992; EP/T012250/1

OSTI ID:: 1977151

Journal Information:: Fusion Engineering and Design, Vol. 177, Issue C; ISSN 0920-3796

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
plasma control
local flux expansion
strike point
divertor
reconstruction
real-time

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