Capacitor substitution for TEA nitrogen laser

AI Thread Summary
The discussion centers on substituting strontium titanate ceramic capacitors, rated at 50KVDC and 910pf, for aluminum foil and plastic dielectric capacitors in a TEA nitrogen laser project. The user hypothesizes that using these ceramic capacitors could result in lower losses compared to commercial options. A question is raised regarding the capacitance equivalence of the foil/plastic capacitors to ensure compatibility with the ceramics. The feasibility and performance of high-voltage doorknob capacitors are also considered for this application. Overall, the conversation explores alternative capacitor options for improved efficiency in laser construction.
guipenguin
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My next project is to build a simple TEA nitrogen laser, as seen here: http://photonics.tfp.uni-karlsruhe.de/1/a-homemade-uv-laser.html

Would it be acceptable to substitute two strontium titanate ceramic caps, each rated 50KVDC @ 910pf, in place of the suggested aluminum foil / plastic dialectic plate caps?

My hypothesis would be if such materials were available than it would be beneficial for lower losses would be encountered with a commercial capacitor.

Let me know what you think about using a couple HV doorknob caps here.

Thanks,
John
 
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guipenguin said:
My next project is to build a simple TEA nitrogen laser, as seen here: http://photonics.tfp.uni-karlsruhe.de/1/a-homemade-uv-laser.html

Would it be acceptable to substitute two strontium titanate ceramic caps, each rated 50KVDC @ 910pf, in place of the suggested aluminum foil / plastic dialectic plate caps?

My hypothesis would be if such materials were available than it would be beneficial for lower losses would be encountered with a commercial capacitor.

Let me know what you think about using a couple HV doorknob caps here.

Thanks,
John
What is the capacitance of the foil/plastic capacitors? Equivalent to your ceramics?
 
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