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Author: Subject: Why no nuclear batteries in cell phones ?
AndersHoveland
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[*] posted on 4-11-2011 at 21:11


Actually, some of those fusors can put out a fairly high neutron flux, even to the point of being hazardous.
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madscientist
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[*] posted on 4-11-2011 at 22:53


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Now they err too much on the side of caution.


The explosions in Japan said otherwise.

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Use of radioisotope in consumer products should be encouraged.


Someone has been reading too many old 1950s Popular Science magazines.




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[*] posted on 7-11-2011 at 10:23


Quote: Originally posted by AndersHoveland  
Actually, some of those fusors can put out a fairly high neutron flux, even to the point of being hazardous.


Neutron radiation becomes dangerous at fluxes much lower than it takes to do a transmutation at an effective rate.
When radioactive isotopes are made, for example for medical use, they're put in an intensive neutron flux in a reactor and it takes some time to finish the job i.e. to get a dilluted sample of a wanted isotope.


Quote: Originally posted by madscientist  
The explosions in Japan said otherwise.

Plutonium was found in traces detectable with special counters that can calculate the energy of the rays and therefore determine what's likely to be the source.
The amounts were very small and didn't represent any threat to anyone.

Caesium and iodine, that's a different story. They're volatile as we consider power plant premises, and quite mobile in biosphere. The cumulative leak of the whole plant probably really exceeded the leak from Chernobyl. Luckily, the wind was blowing mainly eastward, towards the sea.




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