RE: emergency responders -Reply

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

Re Moisture Density Gauges and Al Tesche's questions:

All M-D gauges have A2 class sealed sources, therefore are tested to meet
the DOT requirements for an A2 sealed source: drop test, fire, moisture,
etc.  The shielding may melt in a fire, but the source should always remain
intact (extracting the source from the melted shield is a lot of fun - if
you are a masochist).

The gauge itself is never used as the transport container.  All have an
external case in which the gauge is carried.  The case is typically designed
to the exempt limited quantity specifications or the Type A container
specification (presuming it is a newer model - some of the old M-D cases
have wooden box construction that does not meet today's regulations.)

Other than the neutron dose considerations, the recovery of a damaged M-D
gauge should be a piece of cake and not a major media event.

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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