I have a book on nuclear reactions which details the mean free paths for thermal neutron scattering as:(adsbygoogle = window.adsbygoogle || []).push({});

0.37cm for water and

2.2cm for heavy water

The transport cross sections are listed as 0.45cm for water and 2.6cm for heavy water. Does anyone know how to calculate these from the thermal scattering cross sections?

Thanks!

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# Calculation of neutron transport cross section

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