and anthropomorphic phantoms designed in six age groups, by

MCNP4C Monte Carlo code. In these phantoms we modified the thyroid and neck models. The

results of calculations of Specific Absorbed Fractions (SAFs) from internal photon sources, in...

In this study, a scintillator-based measurement instrument is proposed which is capable of measuring a two-dimensional map of thermal neutrons within a phantom based on the detection of 2.22MeV gamma rays generated via ...

and the optimum radius of the spherical Pb

shield have been investigated, using the MCNP-4C code, and compared with the

unfiltered case, the bare source. Finally, experimental results demonstrate that

an optimised gamma-ray shield...

According to the published results of radiation dosimetry studies, there are significant discrepancies in the organ absorbed doses of existing adult male phantoms. As stated, differences in the organ absorbed doses may be ...

filter surrounding a miniature-type lithium glass scintillator. the count with and without the filter surrounding the detector gives the number of resonance-energy neutrons. Some preliminary results and a comparison with the MCNP code are shown....

been developed by using the MCNP5 code. To validate the simulated model, the simulations from mono-energetic sources have been compared to the corresponding measured data. Any deviation from the measurement could be attributed to the unmodeled details...

سانحه هسته ای فوکوشیمای ژاپن سبب انتشار مقادیر قابل ملاحظه ای ایزوتوپه ای پرتوزا در محیط اطراف شده است.

حضور این ایزوتوپ ها در محیط اطراف مشکلات اساسی را برای انسان به وجود می آورد. از این رو با بهره گیری از فانتوم ...

compared with MCNP Monte Carlo calculations using the ENDF/B-VI data set. For all three

shells the experimental results lie above those calculated for neutron energies between 8 and

11 MeV, whilst between 1 and 4 MeV they lie below. It is concluded...

با توجه به حضور پرتوها در زندگی بشر سترسی به روش های برتر دزسنجی اهمیت فراوانی پیدا می کند. تابش های یوننده اثر بیولوژیکی مخربی روی سلول های بدن دارند. برای بررسی این اثرات بایستی دز رسیده به بافت های بدن محاسبه شود. مدل ...

Nuclear disaster spread radioisotopes greatly to the environment. The isotopes fall on the surface earth, radiate and pollute the environment. So dosimetric data for estimating the accident is necessary. For this reason, ...