The EGSnrc System, a Status Report

The response of alanine to a 150keV X-ray beam

“…The DOSRZnrc Monte Carlo code of the EGSnrc system was used to calculate the absorbed dose-toalanine per unit air-kerma (Kawrakow and Rogers, 2000;Rogers et al, 2001). This user code allows the calculation of dose in a cylindrical, symmetrical geometry.…”

Efficient Monte Carlo simulation of delayed activation analysis experiments

“…The terms appearing in equation are defined as follows: if E is the total energy of the beta-ray, T its kinetic energy (and T max the maximum possible kinetic energy available), m is the electron rest-mass energy, Z is the atomic number of the parent nuclide and a is the fine structure constant, then 1 We are primarily concerned with the analysis of large samples, where the contribution of beta-rays to the measured spectrum is very small and arises mainly from detection of Bremsstrahlung photons. For measurement of samples where the beta-ray contribution is significant, it may be necessary to include a more detailed spectrum model than accounts for forbidden transitions.…”

“…Several factors make it difficult to model delayed activation using standard general-purpose Monte Carlo codes such as EGSnrc [1] or MCNP [2].…”

Monte Carlo simulations to optimize experimental dosimetry of narrow beams used in Gamma Knife radio-surgery

“…Both the EGSnrc [4] and MCNPX [5] codes were used for simulations in this work. In EGSnrc simulations, the exact geometry and materials of a single beam channel were modeled including the bushing assembly with cobalt source, the stationary collimator and the final collimators.…”