Exposure buildup factors for some tissues such as bone compact, Muscle striated, orange articulation wax, red articulation wax, nylon, PMMA and paraffin 2 have been computed using the five parameter geometric progression (GP) fitting method in the energy range of 0.01515.0 MeV, up to the penetration of 40 mean free paths (mfp). The variation of exposure buildup factors for all the selected tiss...

In present investigation, the study of gamma ray Energy absorption buildup factors (EABF) for three oxide glasses, viz. CaO-Al2O3, Na2O-SiO2, and Na2O-Al2O3-SiO2. The computations were done by ANSI/ANS-6.4.3 library and interpolation method using the Geometric Progression fitting formula for the energy range from 0.015 to 15 MeV, up to penetration depths 40 mfp (mean free path). The buildup fac...

We present a novel experimental approach which allows extraction of both spatial and temporal information on charge dynamics in organic solar cells. Using the wavelength dependence of the photonic structure in these devices, we monitor the change in spatial overlap between the photogenerated hole distribution and the optical probe profile as a function of time. In a model system we find evidenc...