Re: Lead Aprons in Dentistry

["Sandy Perle" <sandyfl@earthlink.net>]

I left off the most important quote from this state inspector:

> That said, the highest leakage instantaneous rate I have measured is about 
> 200 mR/hour at 1 meter, and that was on a brand new dental unit.  One can 
> see it is well below the FDA limit, and from an actual risk point of view, 
> I'm sure the hazard is low.  We became involved because our state limit was 
> written as 100 mR/hr, an instantaneous rate.  Most older units, though will 
> measure less than 5 mR/hr at one meter.  You can tell the heads on the 
> older units are much heavier and contain more shielding.  

------------------
Sandy Perle
Technical Director
ICN Dosimetry Division
Costa Mesa, CA 92626
Office: (800) 548-5100 x2306 
Fax:    (714) 668-3111
  
sandyfl@earthlink.net
sperle@icnpharm.com

ICN Dosimetry Website:
http://www.dosimetry.com

Personal Homepage:
http://www.geocities.com/CapeCanaveral/1205

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