First measurements with atomic beam probe diagnostics on COMPASS

P Hacek, M Berta, G Anda, Mátyás Aradi, A Bencze, D Dunai, J Krbec, R Panek, DI Refy, J Stockel, V Weinzettl, S Zoletnik

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

The atomic beam probe diagnostic concept aims at measuring the edge magnetic field and through that edge current distribution in fusion plasmas by observing trajectories of an ion beam stemming from a diagnostic neutral beam. The diagnostic potentially has microsecond scale time resolution and can thus prove to be a powerful option to study fast changes in the edge plasma. A test detector has been installed on the COMPASS tokamak as an extension of the existing lithium beam diagnostic system. It employs a relatively simple concept of an array of conductive detection plates measuring the incident ion current, which is then amplified and converted to a voltage signal. The aim of the test detector is to experimentally examine the idea of the diagnostic and provide background data for design and installation of a final detector. Also, a numerical code based on the CUDA parallel computing platform has been developed for modeling lithium ion trajectories in the given COMPASS plasma discharges. We present the developments of the detector design and test measurements of the diagnostic performed both in a laboratory beam system and on the COMPASS tokamak.
Originalspracheenglisch
Aufsatznummer113506
FachzeitschriftReview of scientific instruments
Jahrgang89
Ausgabenummer11
DOIs
PublikationsstatusVeröffentlicht - 2018

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Atomic beams
COMPASS (programming language)
atomic beams
Detectors
probes
detectors
Plasmas
Lithium
lithium
Trajectories
trajectories
Ions
neutral beams
Parallel processing systems
current distribution
plasma jets
Ion beams
ion currents
installing
Fusion reactions

Dies zitieren

Hacek, P., Berta, M., Anda, G., Aradi, M., Bencze, A., Dunai, D., ... Zoletnik, S. (2018). First measurements with atomic beam probe diagnostics on COMPASS. Review of scientific instruments, 89(11), [113506]. https://doi.org/10.1063/1.5044529

First measurements with atomic beam probe diagnostics on COMPASS. / Hacek, P; Berta, M; Anda, G; Aradi, Mátyás; Bencze, A; Dunai, D; Krbec, J; Panek, R; Refy, DI; Stockel, J; Weinzettl, V; Zoletnik, S.

in: Review of scientific instruments, Jahrgang 89, Nr. 11, 113506, 2018.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Hacek, P, Berta, M, Anda, G, Aradi, M, Bencze, A, Dunai, D, Krbec, J, Panek, R, Refy, DI, Stockel, J, Weinzettl, V & Zoletnik, S 2018, 'First measurements with atomic beam probe diagnostics on COMPASS' Review of scientific instruments, Jg. 89, Nr. 11, 113506. https://doi.org/10.1063/1.5044529
Hacek, P ; Berta, M ; Anda, G ; Aradi, Mátyás ; Bencze, A ; Dunai, D ; Krbec, J ; Panek, R ; Refy, DI ; Stockel, J ; Weinzettl, V ; Zoletnik, S. / First measurements with atomic beam probe diagnostics on COMPASS. in: Review of scientific instruments. 2018 ; Jahrgang 89, Nr. 11.
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