Re: Microwave Magnetron Projects

Martin Brown wrote:

On Oct 5, 6:58 pm, John Larkin
<jjlar...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
On Fri, 05 Oct 2007 09:46:45 -0700, "Paul Hovnanian P.E."

<pa...@xxxxxxxxxx> wrote:
I recently inherited a microwave oven with a damaged door latch. The
magnetron works, but the rest of the oven isn't worth saving. Before I
cannibalize it for parts (like the HV supply and some kewl magnets), are
there any (safe and legal) uses for the working magnetron?

I'm ruling out microwave weapons, anti police radar devices, etc for
obvious reasons, but if there's something to be done with this before
destroying it, I might add it to my projects list.

Links to project web sites would probably be best. Thanks.

Ionize some gas maybe?

It works pretty well to ionise Helium for a microwave induced plasma
as an ion source for ICP-MS, that is provided that you don't mind the
risk of catarracts, blindness and frying your kidneys. I once walked
into a lab where a senior researcher (who should know better) was
adjusting one with all interlocks off and the plasma fully exposed.
Surprisingly pleasing pale reddish coloured flame but I was out of
there instantly. About 1kW output and a spark to start the thing at
atmospheric pressure. eg.

http://www.ingentaconnect.com/content/sas/sas/2001/00000055/00000002/art00003

By comparison the RF ICPMS argon plasma flames are unpleasantly bright
and UV rich but nothing like as dangerous.

Anyone without the requisite knowledge to keep the microwaves safely
confined can expect to get some very nasty complications from
microwave exposure.

Regards,
Martin Brown

There are methods for doing so. The Next Big Thing in lighting is
microwave powered gas discharge lighting. No electrodes to wear out.

--
Paul Hovnanian mailto:Paul@xxxxxxxxxxxxx
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