Can you recommend a fast HV switching device?

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fountain

New member
Joined
Dec 9, 2022
Messages
4
Location
Olympia, WA
Hello,

Can you recommend a switching device which can turn off quickly (is that called "Sharp Cutoff"?), and once off, withstand 10kV or several 10s of kV? I am currently using a V1V vacuum relay, rater for 3kV.

The circuit is a large inductor in series with the switch. When the switch closes, current begins flowing through the coil. When the switch opens, the coil kicks out a sharp pulse of high voltage. Circuit diagram here:

Circuit Diagram

Would an SCR work?

I am thinking of using a triode, instead of the relay, and sending pulses to the grid to turn it on and off. Do you think that would work, or would the cathode arc to the anode when the coil throws its pulse?

My goal is to generate short sharp pulses of Coulomb Potential.


Thank you for any advice you can offer,
Sean
 

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