نتایج جستجو برای: mcnp x

تعداد نتایج: 623959  

Journal: :Journal of Physics: Conference Series 2023

Abstract The Cs 2 LiYCl 6 :Ce crystal (CLYC) is an inorganic scintillator which has been developed for the γ-ray and neutron measurement with high detection efficiency, resolution, no need unfolding technique. To enhance of fast neutron, CLYC 7 Li-enrichment (CLYC7) developed. In this work, response CLYC7 detector to obtained using 137 calibration source calculated Monte Carlo N-Particle transp...

2007
Hashem Miri Hakimabad Hamed Panjeh

Response functions of a 3×3 in. NaI detector, which is mainly used in PGNAA applications, have been calculated by using MCNP-4C code. Calculated results are compared with measured data by using standard γ-ray sources to check their accuracy. γ-rays from radioisotope sources were used in the range from 0.081 to 4.438 MeV for this determination. Through the precise modeling of the detector struct...

2007
Hashem Miri Hakimabad Hamed Panjeh Alireza Vejdani-Noghreiyan

Response functions of a 3×3 in. NaI detector, which is mainly used in PGNAA applications, have been calculated by using MCNP-4C code. Calculated results are compared with measured data by using standard -ray sources to check their accuracy. -rays from radioisotope sources were used in the range from 0.081 to 4.438 MeV for this determination. Through the precise modeling of the detector structur...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1392

با توجه به نقش اشعه ایکس در درمان تومورها و همچنین نیاز به چشمه های نوترون جهت کاربرد های پزشکی و صنعتی تولید یک چشمه اشعه ایکس کم حجم و کم هزینه دارای اهمیت است. در این کار با استفاده از طیف های الکترونی حاصل از بر هم کنش لیزر-پلاسما ابتدا تولید اشعه ایکس تابش ترمزی در هدف های مختلف با استفاده از کد mcnpx شبیه سازی شد. هدف از این کار بدست آوردن جنس بهینه و ضخامت بهینه برای هدف های مختلف جهت با...

ژورنال: سنجش و ایمنی پرتو 2016

By use of silicon rubber as polymeric matrix and bismuth oxide as fillers, composite materials were fabricated up to 70 wt% and their gamma ray attenuation was studied. Due to the fair solubility of bismuth oxide particles in polymer matrix, the solution intercalation method is used for nanocomposite fabrication. The applied source for radiation attenuation test was 241Am with photon energies 5...

Journal: :Sustainability 2023

Radiation-shielding glass is utilized in a few applications such as nuclear medicine, (PET) scans, x-rays, or treatment use. Nuclear reactors additionally require shielding from radiation types gamma, and neutron emissions. the exploration industry fields, for example, cyclotron support testing of non-destructive materials, improvement airport x-ray machines. Notwithstanding, radiation-shieldin...

Journal: :Progress in Nuclear Science and Technology 2014

Journal: :Processes 2023

What is presented in this research an intelligent system for detecting the volume percentage of three-phase fluids passing through oil pipes. The structure detection consists X-ray tube, a Pyrex galss pipe, and two sodium iodide detectors. A fluid water, gas, has been simulated inside pipe flow regimes, annular stratified. Different percentages from 10 to 80% are considered each phase. After pr...

Journal: :Arab Journal of Nuclear Sciences and Applications 2019

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