[time-nuts] Variation in Radioactive Decay Rate with Solar Activity

[Jim Lux]

On 8/3/11 12:14 PM, J. Forster wrote:
> Hi Brooke,
>
> Maybe. The photon counting gear is pretty trivial. You'd need:
>
> A scintillator
> A PMT (Photo Multiplier Tube) and HV stable HV PS.
> A preamp
> A SCA (Single Channel Analyzer). These can be built.
> A counter, stable time base, and data recorder
>
> The main difficulty, IMO, would be getting a sufficient sized lump of the
> material. Chunks of Cs don't grow on trees, at least not where I live.
>

Does it have to be Cs?  United Nuclear sells a wide variety of 
calibration sources for <$100.  Yes, they have Cs137 (10 microCuries)...