VDTs

[Lester Slaback <Lester.Slaback@NIST.GOV>]

Perhaps potassium?

Dale Hankins had a very interesting paper at the annual meeting using NaI 
detectors to detect SNM and marijuana at the border.  His main problem was 
that truckloads of TV's also alarms the system because of the high K-40 
content.
Disclaimer:  the above are the personal musings of the author, and do not 
represent any past, present, or future position of NIST, the U.S. 
government, or anyone else who might think that they are in a position of 
authority.
Lester Slaback, Jr.  [Lester.Slaback@NIST.GOV]
NBSR Health Physics
Center for Neutron Research
NIST
100 Bureau Dr.  STOP 3543
Gaithersburg, MD  20899-3543
301 975-5810 voice
301 921-9847 fax

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