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Castellated structures behaviour under QSPA Kh-50 plasma exposures in ITER relevant conditions

Castellated structures behaviour under QSPA Kh-50 plasma exposures in ITER relevant conditions

The experimental study of castellated target erosion under relevant to ITER ELMs surface heat load (i.e., energy density and the pulse duration as well as particle loads) was performed in QSPA Kh-50 quasi-stationary plasma accelerator. The damage of surface, mechanisms of solid/liquid particle eject...

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Bibliographic Details
Main Authors: Herashchenko, S.S., Makhlaj, V.A., Aksenov, N.N., Bazylev, B., Byrka, O.V., Chebotarev, V.V., Kulik, N.V., Lebedev, S.I., Shevchuk, P.B., Staltsov, V.V.
Format: Article
Language:English
Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2014
Series:Вопросы атомной науки и техники
Subjects:
ИТЭР и приложения для термоядерного реактора
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/81193
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Summary:The experimental study of castellated target erosion under relevant to ITER ELMs surface heat load (i.e., energy density and the pulse duration as well as particle loads) was performed in QSPA Kh-50 quasi-stationary plasma accelerator. The damage of surface, mechanisms of solid/liquid particle ejection for different parts of castellated targets exposed to QSPA plasma streams has been studied in the course of increasing number of pulses. It is shown that melt dynamics at the structure edges, droplet splashing and molten bridges through the slits are determining processes in macroscopic erosion of castellated surface structures.

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