Re: Electromagnetic field question

[Bob Giansiracusa <bobgian@radonc.washington.edu>]

> Date: Wed, 23 Sep 1998 12:16:35 -0500 (CDT)
> Sender: radsafe@romulus.ehs.uiuc.edu
> From: Tad Blanchard <Tad.M.Blanchard.1@gsfc.nasa.gov>
> 
> Try this URL concerning something called a "Jitter Box".  
> I've seen that these devices actually work if you can't relocate the VDT. 
> 
> http://www.noradcorp.com/jbox.htm
>
> At 11:45 AM 9/23/98 -0500, Mitch Belanger wrote (in part):
> >Radsafers,
> >
> >An office in our university was recently renovated and the individual work
> stations rearranged.  When the employees in one portion of the office
> installed and began to use their computers, they noticed that the image on
> the computer monitor would  oscillate.  

Another possibility is that the monitor was moved too close to the ballast in
a fluorescent lamp.  Some ballasts are inductive and generate quite strong
60-Hz magnetic fields.  Moving the monitor a foot or so away will likely
cure the problem.

 - Bob Giansiracusa
   Radiation Oncology Dept, Univ of Washington Medical Center.
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