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4hv.org :: Forums :: General Chatting
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My old toy.

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Conundrum
Mon Jan 24 2011, 07:27AM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
woops!

It might be useful as a fluorescent test surface, the ZnS is basically the same stuff as they use on scintillator screens.

maybe sprinkle some of the powder onto an Am241 source to see if it glows?

Also found this Link2

Link2

Interestingly, the same technique could be used to drive an LC circuit.
In this case the diode stack is bypassed in the forward direction with a voltage limiter and in the reverse direction with a Schottky diode so that the oscillation amplifies on each positive cycle.

A modern slant on the "original" betavoltaic systems smile

Needless to say this would be much more efficient than a low voltage (tens of millivolts) DC system, and the resonant tank voltage could rise above a few KV over several minutes.
Maybe even more with superconducting capacitor and inductor...


-A
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Adam Munich
Mon Jan 24 2011, 12:10PM
Adam Munich Registered Member #2893 Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242
I'd love to have a betvoltiac.

And I'm at a loss for finding the 6.5" ones. Looks like I'm going to have to settle for a 5.625" one. :-/

Definitely getting an acrylic tube for it this time.
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Mattski
Mon Jan 24 2011, 05:05PM
Mattski Registered Member #1792 Joined: Fri Oct 31 2008, 08:12PM
Location: University of California
Posts: 527
Where do you get these big ones Grenadier? All I've seen on ebay are the small (<1.5") keychain ones.
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doctor electrons
Mon Jan 24 2011, 11:03PM
doctor electrons Registered Member #2390 Joined: Sat Sept 26 2009, 02:04PM
Location: Milwaukee Wisconsin
Posts: 381
Now i am sad... That was a terrific piece of glass frown
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