From: Kevin McMurtrie
Subject: Re: Scary, high voltage power supplies. (7Kv, 50A, 50ns, 20Khz)
User-Agent: MT-NewsWatcher/3.2 (PPC Mac OS X)
Date: Sat, 09 Nov 2002 21:08:30 GMT
NNTP-Posting-Date: Sat, 09 Nov 2002 13:08:30 PST
In article ,
>I'm interested in making a copper-halide vapour laser.
>This is basically a tube with .01 bar of helium/neon in, some copper
>chloride (or bromide), which is heated to 400C, and large pulses of power
>This results in a bright green laser beam, with around 1% of the input
>energy, in an ideal case.
>I can get to 7Kv 50ma easily (microwave transformer, and a few diodes
>I'm less sure exactly how to go about pulsing it, though I am clear
>that I'll be doing it from another room, doubling up on all the
>switches and bypass resistors, and having voltmeters on all the caps.
>I assume there is no easy way of building a transformer capable of going
>from a 50ns 500A 700V pulse to 7Kv (I have a large number of BUZ80 800V, 4A
Maybe a Marx Generator? I haven't built one (out of common sense) but
it looks like you could replace one of the resistors with a strobe
trigger transformer. Pulsing the transformer should then set off the
chain and give you one kick-ass power surge. Tuning the spark gaps
sounds like a recipe for electrocution, though.
You could probably pulse it continuously with an LC circuit. Put the
cap across the tube and power it through the inductor.
I'm just gessing here. I bet Win has actually done it.