FW: Rad-safe

["Festarini, Gary" <festarinig@aecl.ca>]

I am forwarding the following request for a colleague at Chalk River
Labs.

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>
>
>We wish to develop blank and swipe standards for tritium and Ra-226 as part
>of our quality assurance program for the swipe testing program.  These
>samples will be sent as "double blind" samples to different laboratories
>analyzing swipe samples by LSC.
>
>Can somebody provide/advice technical information (published/unpublished) on
>the following problems:
>
>How to prepare standard tritium or Ra-226 swipe filter material?
>Which tritium compound is the appropriate choice for reference?
>How do we ensure the activity placed onto the filter is retained and
>measurable over a period (say 4-6 weeks)?
>Finally, is it possible to have a standard filter swipe material for tritium
>or Ra-226?
>
>Your help would be much appreciated.  Please communicate your suggestions or
>comments directly to:
>
>Akhilesh Trivedi
>Radiation Biology and Health Physics Branch
>AECL Chalk River
>trivedia@aecl.ca
>
>
>