Figure 5
From: General considerations for effective thermal neutron shielding in detector applications
Visualization of the one-dimensional albedo calculation for neutrons incident on a shielding with thickness d, illustrating how the shielding is divided into N segments. In the figure, the albedo contribution from the i:th segment is shown, which is highlighted in red. The segment thicknesses are assigned equal lengths on a one-dimensional logarithmic coordinate system. This is to facilitate calculations, which are needed over several orders of magnitude. Note that the neutrons are assumed to scatter from the deepest end of the segment