KKKÖ - Collisions of slow alpha particles with molecules and surfaces

19.07.2004 - 31.05.2007
Research funding project
In future experiments for the development nuclear fusion reactors on the basis of magnetically confined plasmas in tokamak discharges (e.g. ITER) slow alpha particles (He2+) are produced as D-T reaction product (He ash). These alpha particles are being decelerated in collisions and heat the main plasma. Slow alpha particles can reach the outer edge and there collide with neutral species, e.g., H2 and O2. In such collisions the He2+ ions become neutralized and can escape the magnetic field. For realistic modeling of the outer edge plasma a precise knowledge of the respective charge exchange cross sections in the relevant collision energy range (10 eV - 1 keV) is necessary and shall be obtained within the present project.

People

Project leader

Institute

Grant funds

  • Österr. Akademie der Wissenschaften (National) Austrian Academy of Sciences

Research focus

  • Climate Neutral, Renewable and Conventional Energy Supply Systems: 100%

Keywords

GermanEnglish
FusionsforschungNuclear fusion research
Plasma-Wand-WechselwirkungPlasma-wall-interaction

Publications