In this section, we analyze the 2D grayscale neutron and X-ray images of the pristine and XFCcycled graphite anodes. Using the total neutron linear attenuation coefficients, 𝜇 !_#$# , at 0.18 nm neutron wavelength and total X-ray linear attenuation coefficients, 𝜇 %_#$# , at 26.9 keV X-ray energy, from the standard neutron and X-ray material databases, 30, 38-39 we explain our findings.