Energy From Thorium Discussion Forum

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PostPosted: Mar 20, 2011 3:35 am 
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Joined: Mar 16, 2010 1:48 am
Posts: 68
Location: Guangdong, China
In ENDF-6 format data, there are many kinds of materials, each material has an unique MAT number. For a single isotope, it is easy, we could find it's MAT in raw endf file or in the linkage http://t2.lanl.gov/data/neutron7.html.
But for the compounds, we could not determine its MAT number, at least it's hard. I just find a compounds' MAT illustrate from endf-6 format manual(see attachment, manual could be download from http://www.osti.gov/energycitations/pro ... _id=781830). By the way, I still have some question, for example, the MAT of Li is 21~26, but it didn't explain which kind of compound correspond with 21~26.
Moreover, Li-7 has a small absorption XS, why don't we consider it as moderator? Maybe it is better than Be, and I plan to use LEAPR model to produce the thermal scattering data of LiF, can any body give some suggestion?


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