ADAS-EU

ADAS for Fusion in Europe

 Partecipanti

Mappa

 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

 Obiettivo del progetto (Objective)

'ADAS-EU will be a support activity for implementation of atomic data in plasma diagnostics and modelling at fusion laboratories throughout Europe, for management of databases of relevant fundamental and applied data and for promotion of key fundamental atomic data calculation and measurement. It will enable improved effectiveness of analysis of existing fusion experiments and prepare for ITER. The primary scientific objectives are provision of analysis tools and necessary atomic/molecular data for spectroscopy and broadband radiation detection at all wavelengths in all plasma regions. Provision of derived atomic/molecular data for plasma models, including passive emission, near surface emitters, beams, beam penetrated plasma, field disturbed atoms and ions, electron distribution functions, fast particles, slowing down particle distributions and beam calibration. All will be in the context of European-wide shared methodologies, databases and maintenance. ADAS-EU will be an extension of the international ADAS (Atomic Data and Analysis Structure) Project, acting for fusion in Europe, but with developments and deliverables benefiting fusion research world-wide. ADAS-EU will be tied to Euratom Associated Laboratories of the European fusion programme. Also, ITER relevant studies and important issues arising in these laboratories will be identified, developed and validated in partnership. ADAS will continue as a unified system with common code and data assembled, organised, verified and archived centrally. Modification and advance in atomic physics modelling and data stemming from ADAS-EU will be consolidated centrally in ADAS, reissued to all Euratom Associated Laboratories and released into the public domain. There will be four lead Euratom Associated Laboratories linked to ADAS-EU, namely, UKAEA Culham/JET, IPP Garching/Greifswald, CEA Cadarache/ITER and TEC Juelich. These laboratories endorse the ADAS-EU CSA proposal and will collaborate with it.'

Introduzione (Teaser)

An EU-funded project has provided analysis tools and data to study ions and atoms in plasmas.

Descrizione progetto (Article)

Fusion energy is generated when two light atomic nuclei join forces to create a heavier nucleus. Tests performed in the past have yielded solid results, showing that this process can be replicated on Earth to ultimately produce a sustainable energy source. To demonstrate technological feasibility, a large knowledge base and much preparation are needed.

The EU-funded project 'ADAS for fusion in Europe' (http://www.adas-fusion.eu/ (ADAS-EU)) has provided support in atomic data and analysis in plasma diagnostics and modelling for fusion laboratories across Europe and the International Thermonuclear Experimental Reactor (ITER). Databases containing both fundamental and derived atomic data are implemented and maintained, also promoting computation and measurement of new data.

This project consortium stemmed from http://www.adas.ac.uk/ (ADAS) , a project which developed a set of computer codes and data collections for plasma modelling and interpretation of spectral emission. ADAS-EU enhanced capabilities in six main areas of atomic physics, particularly in relation to magnetic confinement fusion. These areas included heavy element spectroscopy, medium-weight elements, charge exchange spectroscopy, beam stopping/emission, diatomic spectra and collisional-radiative models.

Project members provided a standard baseline for a set of heavy elements and analysed their spectral emission in fusion plasma. This helped to model impurities in plasma from tungsten which was used in the ITER fusion reactor. Furthermore, lifting atomic modelling for critical tungsten ions enabled the team to address some atomic physics aspects of tungsten transport and emission.

ADAS-EU developed universal exchange models and extended collisional-radiative models modelling, thus increasing reliability of cross-sectional data and allowing to predict beam emissivity for tungsten ions. Furthermore, new methods and package codes allowed to achieve the highest precision levels for collisional-radiative models of medium-weight elements. Such models were also developed for molecules such as hydrogen isotopomers. Isotopomers are isotopic isomers.

Project final results constituted reports on the main themes probed, covering scientific, technical and implementation issues and are published on the http://www.adas-fusion.eu/ (project website) .