Thermionic Vacuum Discharges for Thin Film Depositions

I Mustata, C Lungu, I Jepu, C Porosnicu - Coatings, 2023 - mdpi.com
The thermionic vacuum discharge method is very effective in that the films obtained using
this technology are characterised by a very high degree of adhesion, density and purity …

Influence of gaseous environments on beryllium–tungsten and tungsten surfaces investigated by XPS

A Marin, CP Lungu, C Porosnicu - … of Vacuum Science & Technology A, 2017 - pubs.aip.org
Beryllium–tungsten and tungsten layers were deposited by thermionic vacuum arc
technique in gaseous environments, in order to simulate the plasma–wall phenomena …

Preparing the future post-mortem analysis of beryllium-based JET and ITER samples by multi-wavelengths Raman spectroscopy on implanted Be, and co-deposited …

MI Rusu, C Pardanaud, Y Ferro, G Giacometti… - Nuclear …, 2017 - iopscience.iop.org
This study demonstrates that Raman microscopy is a suitable technique for future post
mortem analyses of JET and ITER plasma facing components. We focus here on laboratory …

Fuel retention and carbon deposition on beryllium marker tiles from JET tokamak main chamber limiters investigated by ion beam analysis

P Tsavalas, A Lagoyannis, K Mergia, M Axiotis… - Nuclear …, 2022 - iopscience.iop.org
The JET tokamak with the ITER-like wall is operated with arrays of castellated beryllium (Be)
limiters in the main chamber. In several locations Be marker tiles were installed for erosion …

Study of deuterium retention in/release from ITER-relevant Be-containing mixed material layers implanted at elevated temperatures

K Sugiyama, C Porosnicu, W Jacob, J Roth… - Journal of Nuclear …, 2013 - Elsevier
D implantation into Be-containing mixed material layers: Be, Be–W (W:∼ 6at.%) and Be–C
(C:∼ 50at.%), was performed at elevated temperatures. The temperature dependence of D …

Beryllium thin films deposited by thermionic vacuum arc for nuclear applications

V Tiron, C Porosnicu, P Dinca, IL Velicu, D Cristea… - Applied Surface …, 2019 - Elsevier
The aim of this paper is to investigate the influence of the thermionic vacuum arc (TVA)
operation parameters (arc current, arc voltage and thermo-emission filament current) on the …

Magnesium plasma diagnostics by heated probe and characterization of the Mg thin films deposited by thermionic vacuum arc technology

R Vladoiu, A Mandes, VD Balan… - Plasma Sources …, 2015 - iopscience.iop.org
The aim of this paper is to report on magnesium plasma diagnostics and to investigate the
properties of thin Mg films deposited on Si and glass substrates by using thermionic vacuum …

[HTML][HTML] Investigation of deuterium retention in/desorption from beryllium-containing mixed layers

K Sugiyama, C Porosnicu, W Jacob, I Jepu… - Nuclear Materials and …, 2016 - Elsevier
This article reports experimental results regarding the deuterium (D) retention and release
characteristics of beryllium-containing mixed material layers. The main aim is an …

Structure, morphology and deuterium retention and release properties of pure and mixed Be and W layers

P Dinca, B Butoi, C Porosnicu… - Journal of Physics D …, 2020 - iopscience.iop.org
Deuterium retention and release behavior were investigated in this study, for beryllium,
tungsten and mixed beryllium/tungsten thin layers which are of concern for next-generation …

Plasma diagnostics and characterization of the Mg and Mg–Zn thin films deposited by thermionic vacuum arc (TVA) method

R Vladoiu, A Mandes, V Dinca, G Prodan, P Kudrna… - Vacuum, 2019 - Elsevier
Abstract The Thermionic Vacuum Arc (TVA) is an original deposition method using a
combination of anodic arc and powerful electron gun system (up to 600 W) for the growth of …