Neutron interaction/absorbtion length of lithium-6 deutride?

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Arun S. Johnson
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Could anyone tell me or direct me to a source with an answer or way to calculate the neutron aborbtion/interaction length of lithium-6 deutride? I would have expected this answer to be readily available from the government experiments leading up to castle bravo, but I cannot seem to find it. Any help would be greatly appreciated!
 
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Also, http://www.nndc.bnl.gov/atlas/atlasvalues.html
 
Thanks to both of you, but neither site seems to have the right information; is there a way one could calculate the neutron absorption length given the absorption cross section and the ionic radius of both lithium and hydrogen, since the crystals are a simple cubic structure.
 
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