RE: Fluorescent Lights in TLD Handling Room

["Levin, Robert" <robert.levin@sylvania.com>]

	Certain fluorescent lamps have an integral filter sleeve that blocks
essentially all emission below 400 nm.  Also, UV absorbing sleeves are
available to be placed over lamps, and plastic diffusers that block UV can
be obtained for flat bottom fixtures that use diffusers.  The new T5 (5/8
inch diameter) lamp type is available in metric lengths in North America.

	However, first determine the basic lamp type used by your
fluorescent fixtures; this is determined by the type of ballast.  Then
contact one of the major lamp manufacturers to see what options are
available.

	Regards - 
Robert E. Levin, Ph.D.
Corporate Scientist
OSRAM SYLVANIA
71 Cherry Hill Drive
Beverly, MA 01915, USA
Phone: (978) 750-1594
Fax:     (978) 750-1794
e-mail: robert.levin@sylvania.com


> -----Original Message-----
> From:	CHASE John -NUCLEAR [SMTP:john.chase@ontariopowergeneration.com]
> Sent:	Monday, May 08, 2000 3:59 PM
> To:	Multiple recipients of list
> Subject:	Fluorescent Lights in TLD Handling Room
> 
> We have a need to move the facility where we change out the TLD cards in
> our
> TLD badges to a room with fluorescent lights. I need the answer to some
> questions:
> 
> 1.	Does anyone know the right kind of fluorescent lights to minimize
> the exposure of the TLD cards to UV (they are Harshaw cards with TLD-700
> (LiF:Mg,Ti) chips in Teflon)?
> 2.	Does anyone know of North American suppliers for metric (1160 mm) UV
> lights?
> 3.	What are people's experiences with UV lights for TLD-700?
> 
> Thanks in advance
> 
> John Chase
> Sr. Specialist, Dosimetry
> Radiological Protection Division
> Ontario Power Generation Nuclear
> (905) 430-2215, ext. 3242
> 
> john.chase@ontariopowergeneration.com
> <mailto:john.chase@ontariopowergeneration.com> 
> 
> 
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