Quote:
Originally Posted by mmartin798
I beg to differ on this. A D-D reaction produces fast neutrons that would be fatal without shielding at power levels of just 1 Watt. It does not matter if we are talking hot or cold fusion. All that means it the temperatures needed to start the reaction. The products are still the same. Tritium decay is not my major problem about the shielding needed.
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In this case there is no way that fusion packs will be workable. The amount of shielding needed to deal with fast neutrons is generally fairly heavy. There is also an issue with that material becoming activated by neutron absorption.
http://www.academia.edu/3311242/Calc...ding_Materials
http://pbadupws.nrc.gov/docs/ML1122/ML11229A721.pdf
https://www.osti.gov/opennet/servlet...7/16291147.pdf
The final document states "To reduce the
neutron flux from a generator producing 1O to the 10th
neutrons per second to acceptable levels for
limited operation, 12 feet of distance that
included 27 inches of water and 16 inches of
solid concrete block were used."
This is a fairly serious amount of mass. I am not certain what the neutron production rate of the fusion packs would be. Does someone haave an estimate of that available?