Photoneutron production and backscattering in high density concretes used for radiation therapy shielding

In the current study, the effect of high density concretes on photoneutron productions in radiation therapy was studied using Monte Carlo simulations. The photon and neutron spectra of an 18 MeV photon beam of the Varian linac head were used for all simulations. Ordinary and five high density concretes made of high density elements were simulated. The studied concretes consisted of Magnetite, Datolite-Galena, Magnetite–Steel, Limonite–Steel, and Serpentine. Our results show ...

Agents of EDCS Pollutants in Pesticides and Herbicides Used In Fars Province, Iran

نویسند‌گان: N. Shamabadi ، M. Ebrahimi
خلاصه مقاله:
Recent studies have shown that certain man-made compounds (including some pesticides and herbicide) through interfering with endocrine system, have the capability to induce developmental and reproductive abnormalities in humans and animals. Pesticides are currently being used in large scales in many developed and developing countries (including Iran), so this study has been conducted to determine the percentage of endocrine disruptor agents i ...

Rheology of Gels Used for Conformance Control in Fractures

مقاله SPE شماره 70810 ...

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