G. Allen
naca-tn-2026
Feb 1950
Tables are presented for determining the total-absorption coefficients, as well as the intensities and spectral distribution of gamma-rays at any given scattering angle. Only thin scatterers are treated and secondary effects are neglected.
An Adobe Acrobat (PDF) file of the entire report:
http://naca.central.cranfield.ac.uk/reports/1950/naca-tn-2026.pdf