Beta-radiography plates

From: Siew Wah Lee <*lee_siew_wah<-a*> Date: Friday, April 1, 2011 · lee_siew_wah<-a

Beta plate is used for recording watermarks on paper. It contains
C14 inside a sheet of polymethyl methacrylate, and gives out Beta
radiation. I would like to know whether people are still using it
for imaging watermarks, as the plate do gives out radiation, i.e.
radioactive. Also what are the health and safety considerations in
terms of storage, handling, exposure, etc. in the conservation lab.

Siew Wah, Lee
Paper Conservator
Heritage Conservation Centre
32 Jurong Port Rd
Singapore 619104

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                  Conservation DistList Instance 24:46
                  Distributed: Tuesday, April 5, 2011
                       Message Id: cdl-24-46-027
                                  ***