| Popis: |
The production of negative hydrogen ions in a negative ion source used for future neutral beam injection systems in nuclear fusion is closely tied to the density and energy distribution function (EDF) of neutral hydrogen atoms in the plasma in negative ion sources. In this work, a diagnostic (two-photon absorption laser induced fluorescence, TALIF) is installed at a negative ion source which can determine both density and EDF of H atoms in the relevant plasma region. In an intermediate step, TALIF is set up at a reference plasma source for characterization and first measurements. The gained knowledge is then used for the installation of TALIF at the negative ion source at the test stand BATMAN Upgrade where the very first TALIF measurements at such an ion source are performed. |
