Thermo-oxidation of carbon codeposits and particles release during laser ablation in an oxygen atmosphere and its extrapolation to ITER codeposits

- Suppression of codeposit redeposition around laser crater in oxygen atmosphere.
- Deuterium emission during ablation is almost suppressed in oxygen after 5th pulse.
- Indication of thermal oxidation of remaining film during each laser pulse.
- First laser pulse emit large dust particles with almost initial D concentration.
- Probable D content decreases of dust from carbon and W/Be codeposits in oxygen.