Re: Radon in water by LSC

[Franz Schoenhofer <schoenho@via.at>]

At 16:01 07.01.2000 -0600, you wrote:
>EPA's proposed rule for Radon in Water specifies APHA Standard Method
>7500-Rn, using liquid scintillation counting,  for the measurement.   Does
>anyone on RADSAFE have any experience with this method?  

Yes, I have extensive experience with measurement of Rn-222 (and Ra-226) by
liquid scintillation spectrometry. We have measured several thousands of
samples and also participated in (private) intercomparisons. We have used
ultra low-level LS-counters (Quantulus) to achieve a high throughput, which
was necessary due to the enormous number of samples to be measured within a
short time and the short half-live of Rn-222. 

For specific questions please contact me.

Ragards,

Franz


Franz Schoenhofer
Habicherg. 31/7
A-1160 Vienna
Austria
Tel.: +43-1-495 53 08
Fax.: same number
mobile phone: +43-664-338 0 333
e-mail: schoenho@via.at

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