نتایج جستجو برای: photoneutron
تعداد نتایج: 134 فیلتر نتایج به سال:
BackgroundOne of the most significant Intensity Modulated Radiation Therapy treatment benefits is a high target to normal tissue dose ratio. To improve this advantage, an additional accessory such as a compensator is used to delivering doses. Compensator-based IMRT treatment is usually operated with an energy higher than 10 MV. Photoneutrons, which have high linear energy transfer and radiobiol...
The most recent release of photonuclear interaction data for Monte Carlo applications is the ENDF/B-VII library. While this current version offers several improvements over its predecessors, it does not address the observed, sometimes quite significant variance in the measured data. For instance, for U, the cross-section data in the ENDF/B-VII library is consistently larger than all measurement...
It is necessary to consider the effect of photoneutrons produced by photonuclear reactions in shielding calculation a medical linac room with incident electron greater than 10 MeV. For copper and tungsten used as target materials linac, we compared experimental data evaluated four reaction files photoneutron production cross sections. We also calculated results using on angular distributions em...
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