Electron beam.jpg
Hello,
I´ve observed this strange phenomena in my IEC (Inertial electrostatic confinement) fusion reactor (commonly called a Fusor). When the pressure is around 200-50 mtorr I can observe a strange plasma jet eminating from just outside the inner reaction region. I have verified that the plasma jet has a negative charge and that it indeed comes from the reaction zone and not the other way around. I have not recieved any clear answer to why the electron beam is formed and wonder if any of you have any ideas to why and how the electron beam is formed?
In the picture applied above the jet is clearly visible, the gas used in this expement was only air, the pressure was about 150 mtorr and the inner grid was charged to a negative potential of 2 kV relative to the chamber.