Investigation on ripple loss reduction by ferritic steel plate insertion in JFT-2M: comparison between experimental and computational data

Ripple loss reduction resulting in reduced losses of fast ions was demonstrated successfully at the JFT-2M tokamak by installing ferritic plates between the vacuum vessel and toroidal field coils. This paper describes the comparison between the experimental results and computation based on the orbit...

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Veröffentlicht in:Nuclear fusion 2002-08, Vol.42 (8), p.1008-1013, Article 309
Hauptverfasser: Sato, M, Kimura, H, Miura, Y, Nakayama, T, Tobita, K, Kawashima, H, Tsuzuki, K, Isei, N
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container_end_page 1013
container_issue 8
container_start_page 1008
container_title Nuclear fusion
container_volume 42
creator Sato, M
Kimura, H
Miura, Y
Nakayama, T
Tobita, K
Kawashima, H
Tsuzuki, K
Isei, N
description Ripple loss reduction resulting in reduced losses of fast ions was demonstrated successfully at the JFT-2M tokamak by installing ferritic plates between the vacuum vessel and toroidal field coils. This paper describes the comparison between the experimental results and computation based on the orbit following a Monte Carlo code. They are in qualitatively good agreement in the cases where the toroidal distribution of the toroidal field ripple is almost periodic (e.g. ferritic plate installed resulting in a complex periodic structure of the magnetic ripple), but differ in the case of toroidally small average ripple exhibiting non-periodic large local ones (e.g. ferritic plate installed resulting in a more complex non-periodic structure of the magnetic ripple).
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source Institute of Physics Journals
subjects Computer programming
Exact sciences and technology
Experimental reactors
Fusion product effects (e.g., alpha-particles, etc.), fast particles effects
Fusion products effects (eg, alpha-particles, etc.)
Ions
Magnetic confinement and equilibrium
Monte Carlo methods
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma applications
Plasma simulation
Plates (structural components)
Steel testing
Tokamaks
title Investigation on ripple loss reduction by ferritic steel plate insertion in JFT-2M: comparison between experimental and computational data
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