Impact of microwave plasma treatment on tritium retention in submicronic tungsten dust

Mărăscu, Valentina; Payet, Mickaël; Garcia‐Argote, Sébastien; Feuillastre, Sophie; Pieters, Grégory; Mertens, Vincent; Miserque, F.; Hodille, E.; Bernard, E.; Grisolia, Christian

doi:10.1016/j.ijhydene.2023.04.349

Cited by 2 publications

(1 citation statement)

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“…2. An identification Provider (IdP) is an entity responsible for verifying the identification The motivation behind the proposed scheme has its roots in one sensitive case study that we experienced lately during the examination of some results achieved by our colleagues and collaborators in the field of physics [181][182][183][184][185][186][187][188][189][190][191][192][193][194][195][196][197][198]. During their experiments and due to the software used for achieving the proper results, we observed that the access control was not properly configured for the applications, most of which being related to physics, materials science experiment devices, plasma research and development using PlasmaPy and Python, and computational techniques within these fields (which requires a certain level of protection and restriction in such way that not everyone should have access to them).…”

Section: The Proposed Verifiable Credentials Authentication Schemementioning

confidence: 99%

A Novel Authentication Scheme Based on Verifiable Credentials Using Digital Identity in the Context of Web 3.0

Nita,

Mihailescu

2024

Electronics

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This paper explores the concept of digital identity in the evolving landscape of Web 3.0, focusing on the development and implications of a novel authentication scheme using verifiable credentials. The background sets the stage by placing digital identity within the broad context of Web 3.0′s decentralized, blockchain-based internet, highlighting the transition from earlier web paradigms. The methods section outlines the theoretical framework and technologies employed, such as blockchain, smart contracts, and cryptographic algorithms. The results summarize the main findings, including the proposed authentication scheme’s ability to enhance user control, security, and privacy in digital interactions. Finally, the conclusions discuss the broader implications of this scheme for future online transactions and digital identity management, emphasizing the shift towards self-sovereignty and reduced reliance on centralized authorities.

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Section: The Proposed Verifiable Credentials Authentication Schemementioning

confidence: 99%

A Novel Authentication Scheme Based on Verifiable Credentials Using Digital Identity in the Context of Web 3.0

Nita,

Mihailescu

2024

Electronics

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Tungsten Material Behavior under H2, D2, and He Plasma Interaction Conditions in the Framework of Fusion-Relevant Studies

Stancu,

Marascu,

Bonciu

et al. 2023

Materials

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In the current study, bulk tungsten material surfaces are exposed to hydrogen, deuterium, and helium plasmas in the radiofrequency domain (13.56 MHz) at an input power of 250 W using the hollow-cathode configuration. The ejected material is collected on titanium substrates at various distances (from 6 mm up to 40 mm). Therefore, the exposed tungsten materials are investigated for surface changes (blister occurrence, dust formation, or nano-structuration), along with the crystallinity, depending on the plasma’s exposure times (from 30 min up to 120 min for each plasma type). Also, the collected materials are analyzed (morphological, structural, and statistical investigations) for dust and dust film-like appearance. Plasma discharges are analyzed using two methods: optical emission spectroscopy, and single Langmuir probes, to emphasize the nature of the used plasmas (cold discharges, ~2 eV), along with the presence of tungsten emission (e.g., WI 406.31 nm, WI 421.31 nm) during the plasma lifetime. By using a dedicated protocol, a method was established for obtaining fusion-relevant tungsten surfaces in the hydrogen and deuterium plasma discharges. By using the implemented method, the current paper introduces the possibility of obtaining a new tungsten morphology, i.e., the dandelion-like shape, by using helium plasma, in which the W18O49 compound can be found.

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Impact of microwave plasma treatment on tritium retention in submicronic tungsten dust

Cited by 2 publications

References 41 publications

A Novel Authentication Scheme Based on Verifiable Credentials Using Digital Identity in the Context of Web 3.0

A Novel Authentication Scheme Based on Verifiable Credentials Using Digital Identity in the Context of Web 3.0

Tungsten Material Behavior under H2, D2, and He Plasma Interaction Conditions in the Framework of Fusion-Relevant Studies

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