Intensity radial profiles of VUV line radiation near the solid target in a hot plasma |
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| Authors: | V Piffl V Weinzettl A Burdakov S V Polosatkin |
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| Institution: | 1.Institute of Plasma Physics,Association EUROATOM-IPP.CR,Prague 8,Czech Republic;2.Budker Institute of Nuclear Physics,Novosibirsk,Russia |
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| Abstract: | An investigation of hot plasma interaction with solid target is carried out at the CASTOR tokamak (IPP Prague) and the GOL-3 multi-mirror magnetic trap faccility (Budker Institute, Novosibirsk) 1], 5]. In both experiments, the Imaging Seya-Namioka Spectrometer based on a spherical dispersion grating has been upraded to monitor the radial profiles of the chord-integrated low-Z impurity line intensities in VUV spectral range. Such spatial resolved intensity monitoring in radial direction together with application of the radiation code simulation allows obtaining a radial distribution of ions of different ionization stages near the target immersed in edge plasma. The energy release from plasma to the target is order of 100 J/m2 in the CASTOR tokamak and 30 MJ/m2 int he GOL-3 magnetic open confinement system. |
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