International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

International Tables for Crystallography (2006). Vol. C, ch. 4.4, p. 438

Figure 4.4.2.7 

I. S. Andersona and O. Schärpff
[Figure 4.4.2.7]
Figure 4.4.2.7

Total cross section for beryllium in the energy range where it can be used as a filter for neutrons with energy below 5 meV (Freund, 1983[link]).