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Re: Day/Night background change?
JJGEYSTER@aol.com wrote, in part:
> A number of the New England Nuclear plants also experience clothing
> contamination due to static charge attraction of the radon progengy. This is
> most commonly seen with polyester blends, but also occurs on plastic hard
> hats and sometimes with cotton clothing if the met conditions are favorable.
> The source at times can be from outdoor sources and also from indoor
> eminations from concrete where ventillation is limited.
Group:
The affinity of insulating material for Radon (and Thoron) was noted in:
McCaslin, J.B., A High Energy Neutron Detector, Health Physics, 2, 399,
1960.
He described how Radon (and Thoron) are attracted to plastic
scintillators; used to detect neutrons via the C12(n,2n)C11 reaction
with a threshold of 20 mev.
Best wishes
--
Wade
mailto:hwade@triax.com
H.Wade Patterson
1116 Linda Lane
Lakeview OR 97630
ph 541 947-4974