چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| tAim: The aim of this study was to design a safe bunker for an 18 MV linac in to configuration;primary barriers made from nanoparticle-containing concrete and pure concrete.Background: Application of some nanoparticles in the shielding materials has been studiedand it was shown that the presence of some nanoparticles improved radiation shieldingproperties.Materials and methods: Some percentage of different nanoparticles were modeled by theMCNP5 code of MC in the megavoltage radiotherapy treatment room’s primary barriers.Other parts of the designed room, such as secondary barriers and maze door, were modeledas ordinary pure concrete. A safe bunker was designed according to the MC derived spectraat primary and secondary barriers location using a modeled and benchmarked 18 MV linacin free air. Then, the thickness of the required shielding materials for the door and alsoconcrete for the walls and primary barriers were calculated separately.Results: According to the results, required concrete thickness in primary and secondarybarriers was reduced by around 0.8% compared to pure concrete application. Addition-ally, required lead and BPE decreased by 25% and 15%, respectively, due to primary barriersnanoparticles.Conclusions: It was concluded that application of some nanoparticles in the shielding mate-rials structures in megavoltage radiotherapy can make the shielding effective. |
| نویسنده | نفر چندم مقاله |
|---|---|
| امیر قاسمی جنگجو | اول |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| 1-s2.0-S1507136717300615-main.pdf | 1398/05/08 | 756237 | دانلود |
