Napredna pretraga

Pregled bibliografske jedinice broj: 940296

Ion Microbeam Analyses of Dust Particles and Codeposits from JET with the ITER-Like Wall


(EUROFusion) Fazinić, Stjepko; Tadić, Tonči; Vukšić, Marin; Rubel, Marek; Petersson, Per; Fortuna-Zalesna, Elizbeth; Widdowson, Anna
Ion Microbeam Analyses of Dust Particles and Codeposits from JET with the ITER-Like Wall // Analytical chemistry, 90 (2018), 9; 5744-5752 doi:10.1021/acs.analchem.8b00073 (međunarodna recenzija, članak, znanstveni)


Naslov
Ion Microbeam Analyses of Dust Particles and Codeposits from JET with the ITER-Like Wall

Autori
Fazinić, Stjepko ; Tadić, Tonči ; Vukšić, Marin ; Rubel, Marek ; Petersson, Per ; Fortuna-Zalesna, Elizbeth ; Widdowson, Anna

Kolaboracija
EUROFusion

Izvornik
Analytical chemistry (0003-2700) 90 (2018), 9; 5744-5752

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
JET, Dust, Codeposits, ITER

Sažetak
Generation of metal dust in the JET tokamak with the ITER-like wall (ILW) is a topic of vital interest to next-step fusion devices because of safety issues with plasma operation. Simultaneous Nuclear Reaction Analysis (NRA) and Particle-Induced X-ray Emission (PIXE) with a focused four MeV 3He microbeam was used to determine the composition of dust particles related to the JET operation with the ILW. The focus was on "Be-rich particles" collected from the deposition zone on the inner divertor tile. The particles found are composed of a mix of codeposited species up to 120 μm in size with a thickness of 30-40 μm. The main constituents are D from the fusion fuel, Be and W from the main plasma-facing components, and Ni and Cr from the Inconel grills of the antennas for auxiliary plasma heating. Elemental concentrations were estimated by iterative NRA-PIXE analysis. Two types of dust particles were found: (i) larger Be-rich particles with Be concentrations above 90 at% with a deuterium presence of up to 3.4 at% and containing Ni (1-3 at%), Cr (0.4-0.8 at%), W (0.2-0.9 at%), Fe (0.3-0.6 at%), and Cu and Ti in lower concentrations and (ii) small particles rich in Al and/or Si that were in some cases accompanied by other elements, such as Fe, Cu, or Ti or W and Mo.

Izvorni jezik
Engleski



POVEZANOST RADA


Projekt / tema
EK-H2020-633053 (EK - EURATOM-Adhoc-2014-20)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Citati