So, here are the videos I recorded while experimentint with the refrigeration vacuum pump:
- Voltage: 350/500V
- Current limiter: NO.
- Plates: Aluminium.
- Vacuum: Around 300 microns.
- Plasma trap spacer: 4,5mm.
1.- Just testing the magnetic trap with lower gap. Glowing hot aluminium can be seen at some point.
2.- Wondering what would happen if the magnet was inside the chamber? Magnet is at positive potential, copper foil is isolated.
3.- Same setup, but copper foil at positive potential.
4.- Magnetic effects on the residual plasma bubble
5.- Magnetic effects on the residual plasma bubble, in slow motion.
6.- Trying to start the sputtering plasma without low enough pressure, generating sparks in the ionized gas. Once the vacuum gets further down, the plasma stabilizes.
And that’s all I got with the not-so-good vacuum pump.