Re: marx generator

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net> 

No conventional marx, kit or otherwise, is going to have nanosecond rise
times.  More like microseconds, or maybe, hundreds of nanoseconds.  Tens of
nanoseconds is VERY challenging.

I doubt amazing1 would have megavolt marxes, either.  That's moderately
challenging as well - there's a real tradeoff between stage voltages and per
stage losses, and you don't see many 50 stage megavolt Marxes for that
reason... Usually it's more like 50-100 kV/stage, which is a sweet spot for
capacitors, corona, and charging supplies.

Another approach, not Marx, is to use a capacitive discharge into an impulse
transformer into a capacitor into a peaking gap.

Bear in mind the fundamental problem of size... nanosecond rise times imply
dimensions on the order of a foot.  Megavolt voltages imply clearances of
many feet if air insulated.  This takes fancy transmission line techniques,
etc.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, July 28, 2004 8:11 PM
Subject: Re: marx generator


 > Original poster: "Patrick Herd" <zl2uph-at-hotmail-dot-com>
 >
 > Greetings Helm,
 > Depending on your budget www.amazing1-dot-com will have a marx generator
either
 > prebuilt or as a kit that will suit your needs
 > Hope this is of some help
 > Pat
 >
 >
 >  > Hello,
 >  >
 >  > I'm searching for a marx generator (self build or commercial) with
about
 >  > 0.5 to 1MV (at least 4000A) with a very short rise time (about a few
tens
 >  > of ns or ns). It is for a special experiment.
 >  > Can someone help me in that case?
 >  >
 >  > Best regards
 >  > Helm
 >  >
 >  >
 >  >
 >
 >