Fig. 5: Energy selective imaging at the ICON beamline.
From: Quantifying concentration distributions in redox flow batteries with neutron radiography
a Energy dependency of the attenuation coefficient of TEMPO, TEMPO+BF4− and BF4− obtained from the cuvette experiments (all 0.5 M), where the time-of-flight is a function of the neutron energy. b Schematic representation of the main components in the image processing sequence for the ICON beamline experiments, including the table of microscopic cross-sections, the low and high energy transmission images (grayscale) with the regions of interest and deconvoluted active species and supporting ion images of the flow cell, showing the flow fields, electrodes and membrane together with their dimensions. The transmission images are processed using the given equation to extract the concentration maps (coloured images) of TEMPO/TEMPO+ and BF4−.
