Initial experiments with liquid target materials in PSI-2 and TEXTOR
Initial experiments with liquid target materials in PSI-2 and TEXTOR
Initial experiments with liquid target materials in PSI-2 and TEXTOR
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Sn mass loss <strong>in</strong> dur<strong>in</strong>g exposure<br />
§<br />
§<br />
§<br />
§<br />
Total loss: 240 mg (of 1139mg)<br />
Surface temperature needed<br />
for evaporation of 240 mg:<br />
1120°C (full area)<br />
“effective erosion yield”:<br />
Y=0.15 >> Y sputter<br />
Penetration depth of Sn atoms:<br />
λ= 1.7 cm, E k<strong>in</strong> =1.5 eV >> E k<strong>in</strong><br />
=0.15 eV (evaporated Sn)<br />
Ø Indicat<strong>in</strong>g sputtered particles<br />
§<br />
SnI <strong>in</strong>tensity ris<strong>in</strong>g dur<strong>in</strong>g<br />
<strong>in</strong>crease of <strong>target</strong> temperature,<br />
<strong>in</strong>dication of temperature<br />
enhanced erosion?<br />
Intensity distribution SnI (380 nm)<br />
<strong>target</strong><br />
September 9th, 2013<br />
B. Unterberg | Institut für Energie- und Klimaforschung – Plasmaphysik, Forschungszentrum Jülich Nr. 15