"Cecil Moore" wrote in message
...
John Passaneau wrote:
The eyes and gonads are two part of the body that most sensitive to
microwave radiation. So unless going blind and sterile is not a problem,
diathermy is not a good idea.

Diathermy in the 50's was HF, not microwave.
--
73, Cecil http://www.qsl.net/w5dxp



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That's interesting. The only diathermy machine I've ever seen worked at
about 5GHz. It had a jointed metal arm with interchangeable dish and horn
antennas that were changed to fit the body part you wanted to heat. The arm
was a wave guide to get the power from the generator to the antenna. It
worked quite well for heating the body. I'm not sure how HF range RF would
do at heating the body though. I used to work with a 50KW induction heater
that ran at about 500KHz and it would heat my belt buckle but not me, at
least not directly. Thinking about I do remember seeing a picture of someone
using a diathermy machine with a coil warped around the body, so maybe it
could be done at HF. The eyes and gonads are most sensitive to RF as they
are the organs that are most exposed on the body with the highest water
content. That's why things with little water do not get hot in a microwave
oven. The microwaves are exciting the water monocles, and excited monocles
are hot monocles.


--
John Passaneau, W3JXP
Penn State University

On Fri, 13 Feb 2004 15:49:59 -0500, "John Passaneau"
wrote:
I used to work with a 50KW induction heater
that ran at about 500KHz and it would heat my belt buckle but not me, at
least not directly.

Hi John,

Sitting directly on top of the international maritime distress
frequency?

73's
Richard Clark, KB7QHC