[450] I/Q and cheap Spectrum Analyzers

[John Foege]

While the bulk emission of radioactive sources can be modeled
probabilistically via a poisson process, the individual emissions of
alpha, beta, gamma rays (whichever you fancy) are totally
non-deterministic and thus provide a fantastic source of real
randomness.

And the fact that it's possible to build such a thing with crap
scrounged from old 1950s labs on ebay...that's the coolest part!

On Wed, Apr 4, 2012 at 3:36 AM, John Foege <john.foege at gmail.com> wrote:
> My mind is too busy contemplating building a quantum random number
> generator to be of any use to you guys right now....
>
> 2kV PSU, scintillator, photomultiplier, some pulse shaping and
> sampling circuitry and voila...
>
> Where the f* am I going to get a radioactive source though? Anyone has
> some Cesium laying around? :P
>
> And the question that will indoubtedly be asked is, WHY? Why? Because
> science is damned interesting!
>
> On Wed, Apr 4, 2012 at 1:21 AM, Bob <n1ujs at toast.net> wrote:
>> Well get on board and help us out Mr. Technology!  We want a dongle device
>> which interfaces your PC with an rf sampler and allows you to measure
>> deviation, maybe even turns your PC into a scope and whatever else we can
>> add to it.  We need to make it and market it before anyone else does in a
>> package simple and cheap enough for the average ham.  Are you in?  We could
>> be rich!!!
>>
>> On Tue, Apr 3, 2012 at 10:52 AM, John Foege <john.foege at gmail.com> wrote:
>>>
>>> When I saw you guys (Bob and Dave) mentioning these things, I think it
>>> warmed my heart for a few milliseconds....
>>>
>>> :)
>>>
>>> Awesome indeed that you are starting to get as nerdy as me about the
>>> electronics....
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>>
>>
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