  Abnormalities within cells result in nanoscale structural alterations can be
characterized via confocal imaging and quantification of these alterations.
Accidental or deliberate exposure to total body irradiation (TBI) have adverse
effects on the nuclear DNAs of cells. Here, we study the DNA molecular mass
density spatial structural alterations of chromatin in cell nuclei of gut
tissues caused by the exposure to standard doses of 4Gy TBI, using the light
localization technique called inverse participation ratio (IPR) in confocal
images. Results indicate radiation suppresses DNA spatial mass density
fluctuations. And hence, reduction and saturation in DNA density fluctuations
are observed for different durations of post-irradiation.
