[Prev][Next][Index][Thread]

Re: Ultraviolet light from brush discharge.

Hi,

Please see the following URL in re Ozone:
http://www.esb.ucp.pt/bungah/disinfec/ozprod.htm

Also note that anyone familiar with Hard UV, such as used in sterilizing
aparatus, will know that Ozone is produced. I also believe that the higher
temperature from a CW discharge may lend it to produce more NOx then Spark
TC's.

Regards,

David Trimmell

On Sun, 12 Mar 2000, Tesla List wrote:

> Original Poster: "Area31 Research Facility" <rwstephens@hurontario.net> 
> 
> Terry,
>  
> I've noticed the same fluorescence of materials as you describe
illuminated by
> the corona spray from vac tube TC's and I've certainly stared at the
discharges
> long enough to have caused welder's flash symptoms but suffered absolutely no
> ill effects, none whatsoever.  I wear plastic lens eyeglasses however that
> might attenuate the UV to a limited extent.  However that said, I've given
> myself a good dose of the flash with the same type glasses on while looking
> upon a mercury vapor lamp with the outer UV shielding/wavelength conversion
> envelope removed during an experiment for just 15 seconds or so about 15
years
> ago.  I guess the UV from the TC, although invisible is long wave UV and
> therefore quite harmless.  After all it is the electricity that is making the
> ozone, not the UV.  In the case of my Hg lamp experiment the ozone from the
> 'light' was quite strong.
>  
> Robert W. Stephens
> Director
> AREA31 Research Facility
> <http://www.area31.org>www.area31.org
> >
> > ----- Original Message ----- 
> > From: <mailto:tesla@pupman.com>Tesla List 
> > To: <mailto:tesla@pupman.com>tesla@pupman.com 
> > Sent: Sunday, March 12, 2000 20:40
> > Subject: Ultraviolet light from brush discharge.
> >
> > Original Poster: Terry Fritz
> <<mailto:twftesla@uswest.net>twftesla@uswest.net>
> >
> > Hi All,
> >
> > While running my CW coil in very low light, I noticed that paper and a few
> > light colored cloths fluoresce as if under black light.  It was not real
> > intense but I was wondering if it is maybe not a good idea to stare at the
> > discharge for lengths of time.  I don't see the discharged "burned" into my
> > retina if I close my eyes or anything, but I thought I would ask. 
> >
> > Cheers,
> >
> > Terry
> 
> 
> 
>