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Indexed by:期刊论文

Date of Publication:2017-08-01

Journal:NUCLEAR MATERIALS AND ENERGY

Included Journals:Scopus、SCIE、EI

Volume:12

Issue:,SI

Page Number:1236-1242

ISSN No.:2352-1791

Key Words:Tokamak; Speckle interferometry; Plasma-facing materials; Topography measurement

Abstract:Temporal phase-shifting speckle interferometry is proposed to measure plasma-facing materials' (PFMs) topography variation in tokamak. In this approach, laser ablation method is used to simulate erosion and redeposition, and polished molybdenum/tungsten (Mo/W) samples which are related to PFMs have been tested. The geometric topography of the ablated area was reconstructed successfully via a numerical model developed in this work. The results demonstrate the feasibility of temporal phase-shifting speckle interferometry applied to topography measurement of PFMs. (C) 2017 Published by Elsevier Ltd.