Radiation Shielding Materials Containing H, B, and N

Discuss the technical details of an "open source" community-driven design of a polywell reactor.

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DeltaV
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Radiation Shielding Materials Containing H, B, and N

Postby DeltaV » Sat Apr 28, 2012 4:05 pm

From NIAC 2012 Symposium.


Endersworld
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Postby Endersworld » Wed May 02, 2012 11:37 pm


DeltaV
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Postby DeltaV » Thu May 03, 2012 5:01 am


Endersworld
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Postby Endersworld » Fri May 04, 2012 5:09 am


D Tibbets
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Postby D Tibbets » Fri May 04, 2012 5:58 am

To error is human... and I'm very human.

93143
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Postby 93143 » Fri May 04, 2012 8:57 pm


RERT
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Re: Radiation Shielding Materials Containing H, B, and N

Postby RERT » Thu Dec 28, 2017 3:53 pm

I've been fiddling with data from Wikipedia on p11B fusion, which suggests that the side reaction

p+11B->12C+Gamma (16MeV) occurs with a 0.1 % branching probability.

Given this, I think a 10MW (Th) reactor would be a source of kilowatts of 16MeV gammas, and I agree with the last post that a foot of lead is about what is needed to stay healthy a couple of metres from such a thing.

However, there is no definitive reference, and looking at tables of excited states 12C* I can't see such a decay mentioned.

Does anyone have a definitive reference, or a suggestion where to search for such a thing?

As far as I can see this is very important to any p11B system.

RERT
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Re: Radiation Shielding Materials Containing H, B, and N

Postby RERT » Fri Dec 29, 2017 7:33 pm

I found this, seems to corroborate the above, around page 65 onwards

http://www.iaea.org/inis/collection/NCL ... 090626.pdf


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