Projects / Programmes
Detection of defects and hydrogen by ion beam analysis in channelling mode for fusion
| Code |
Science |
Field |
Subfield |
| 2.03.00 |
Engineering sciences and technologies |
Energy engineering |
|
| Code |
Science |
Field |
| 2.03 |
Engineering and Technology |
Mechanical engineering |
Thermonuclear fusion, tungsten, hydrogen isotopes, helium, material characterization, hydrogen retention, ion beam methods, ion channeling, displacement defects
Data for the last 5 years (citations for the last 10 years) on
June 28, 2024;
A3 for period
2018-2022
Data for ARIS tenders (
04.04.2019 – Programme tender,
archive
)
| Database |
Linked records |
Citations |
Pure citations |
Average pure citations |
| WoS |
364 |
5,516 |
4,364 |
11.99 |
| Scopus |
371 |
5,959 |
4,742 |
12.78 |
Researchers (8)
Organisations (1)
| no. |
Code |
Research organisation |
City |
Registration number |
No. of publicationsNo. of publications |
| 1. |
0106 |
Jožef Stefan Institute |
Ljubljana |
5051606000 |
18 |
Abstract
Understanding the interaction of hydrogen with the host lattice of plasma-facing as well as structural materials is crucial since low hydrogen isotope (HI) retention is a stringent prerequisite in thermonuclear fusion. This project is focused on the development of a new characterization technique to explore the influence of structural defects on HI retention and vice versa. As a pilot case, we will study HI interaction with tungsten (W); the latter considered as the main candidate for the wall material in a future fusion device. The existing experiments and state-of-the-art theory and modelling can neither satisfactorily describe the interaction of hydrogen with large structural defects in materials, nor consider the possible synergistic effects of the presence of HI on defects and material structure evolution. For this reason, we want to further exploit our existing innovative approach and unique capabilities by combining our state-of-the-art methods of HI retention studies with microstructure characterization and go beyond by complementing the information gained from each of the methods and advance the field to the next level. The main objective of our project is to set foundation for the evaluation of the interaction of structural defects with HI and the subsequent effect on HI retention and defect creation and evolution. We want to develop and use a novel ion channelling method at the tandem accelerator laboratory in Ljubljana to characterize the produced structural defects and HI retention. As an upgrade to existing channelling procedures, we want to combine it with the absolute quantitative deuterium detection method and perform it in the channelling mode, so-called channeling-nuclear reaction analysis (C-NRA). Such an approach will enable the direct correlation of the HI retention with the structural defects (from small structural defects, such as vacancies, to large defects such as voids) and determination of the lattice positions of hydrogen atoms around studied structures. Experiments will be done hand in hand with modelling. It will bring a new research method to the fusion community, capable of performing measurements, analyses and research of materials, subject to the new EUROfusion work packages Materials and Plasma Wall Interaction & Exhaust. This newly developed technique will allow us to upgrade our current knowledge in the interaction of HI with defects with the goal of better extrapolation for future fusion reactors. The proposed project will also bring a new analysis method for material developmnet in laboratories working on hydrogen technology (hydrogen storage) and for characterization of materials in laboratories studying hydrogen embrittlement. The project is divided into four interconnected work packages (WP). The project team consists of two senior established and experienced scientists in hydrogen interaction with materials (f) and accelerator physics (m), two scientists and specialists in detector development (m) and microstructure analysis (m), a post-doctoral fellow (f), one young researcher (m) and two doctoral students (m and f). Informally, the project also includes two top laboratories from Germany and France, with which we have a fruitful cooperation for many years.
