Dosimetric validation of the MCNPX Monte Carlo simulation for radiobiologic studies of megavoltage grid radiotherapy

Conclusions: Monte Carlo technique was demonstrated to be able to provide the dosimetric characteristics for grid therapy. The therapeutic ratio was dependent not only on the single α/β value, but also on the individual α and β values. Acutely responding tumors and radiosensitive normal tissues are more suitable for using the grid therapy.