Re: GM Probe Efficiencies

[alstonc@odrge.odr.georgetown.edu]

Maybe the manufacturer meant that "it" couldn't do it. Many vendors only do
dose-rate calibrations, since it's difficult (at least) to do efficiency
cals for all potential scenarios. Those calibrations are much better done
by the client, for his/her specific needs.

chris a.


>To all,
>
>Yesterday I received a phone call from an RSO who was informed by the
>manufacturer of their radiation monitoring instrument that it was
impossible to
>calibrate a GM tube to give the efficiencies for particular isotopes (C-14,
>P-32, Pu-238, etc). This was an industry wide used GM tube with a pancake
probe
>(Model 44-x).
>
>I feel that either the vendor misspoke, or the RSO miscommunicated, since we
>routinely do this at the Reed Reactor Facility.
>
>Is there something I am missing, or is this just a communications breakdown?
>
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