RE: sealed sources

["Grimm, Lawrence" <LGrimm@ADMIN.UCLA.EDU>]

Clayton Bradt wrote: What sealed sources have short enough half-lives to be
decayed in storage?

My response: The sources that Tracey referred to are not being put into
decay-for-storage mode. A sealed source may be put into storage for future
use, and it does not require a leak test.  The same source may in reality be
waste because there is no anticipated use for it in the future.  I had lots
of old 241AmBe sources from moisture density gauges for which there is no
disposal capacity/route (greater than class C quantity).  All you can do in
that situation is hold them in storage or as waste-in-storage. The
distinction is nebulous, at best. 

Larry Grimm
	UCLA Radiation Safety Division
*	On Campus: CHS A6-060 MS 957061
*	Off Campus: UCLA Radiation Safety Div, 2195 West Medical
Building, Los Angeles, CA 90095-1764
*	lgrimm@admin.ucla.edu   Phone:310/206-0712   Fax 310/794-5825
*	If this email is not RSD business, the opinions are mine, not
UCLA's.
 
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