Zhang Chunxiang

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The dose distributions in a spherical phantom irradiated by a Leksell Gamma Unit have been calculated using the EGS4 Monte Carlo code. In the simulation, the photon beams are considered to emanate from point sources, ignoring the scattering from source and collimating systems. The calculated results are in good agreement with results obtained with(More)
A new semi-empirical algorithm for the radial distribution of dose is compared with available data. The algorithm is used to calculate the inactivation cross section for dry enzymes and viruses using an extended target model of a 1-hit detector. Agreement with data is at about the 15% level, approximating the precision of the data itself.
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