Simulations of mass attenuation coefficients for shielding materials using the MCNP-X code

Investigation of fast neutron shielding properties of new polyurethane-based composites loaded with B4C, BeO, WO3, ZnO, and Gd2O3 micro-and nanoparticles

“…Also, more homogenous composites can be made from nanoparticles compared to micro-fillers. This phenomenon is identical for both photons and neutrons and it has been reported in the previous studies [9][10][11]14,[16][17][18][19][20][21]. However, it should be reminded here that most of the studies have been conducted on photon beams and a few reports have examined the neutron beam attenuation by nanoparticles.…”

Bazı Nükleer Reaktör Kontrol Çubuğu Malzemelerinde Yüklü Parçacık Giricilik Mesafesi ve Kütle Durdurma Gücü Hesaplamaları

“…So, obtaining the material stopping power and the particle penetration distance values as a result of charged particle interactions on the materials may provide beneficial and useful results which can be used in many scientific, technological and industrial applications. The existence of studies in this and similar context in the literature also shows the accuracy and importance of this statement (Tekin and Manici, 2017;Bozkurt and Sarpün, 2018a;Bozkurt and Sarpün, 2018b;Artun, 2018a;Artun, 2018b). In this study, with the motivation by considering the above mentioned importance, for the elements of Hafnium (Hf), Samarium (Sm), Europium (Eu), Gadolinium (Gd) and Dysprosium (Dy) also for the oxide compounds of these elements that are Hafnium(IV) oxide (Hafnia) (HfO2), Samarium(III) oxide (Samaria) (Sm2O3), Europium(III) oxide (Europia) (Eu2O3), Gadolinium(III) oxide (Gadolinia) Gd2O3and Dysprosium(III) oxide (Dysprosia) (Dy2O3), which have been considered and studied on the use of control rod production, the mass stopping power values on different charged particle interactions and the penetration distance values of these charged particles have been obtained (IAEA, 1995;IAEA, 1996;IAEA;2000, Kalcheva andKoonen, 2007;Ashby and Smidman, 2010).…”

Synergistic effects of quercetin and selenium on oxidative stress in endometrial adenocarcinoma cells

“…A Monte Carlo simulation approach can offer an alternative problem solving for extremely complex physical problems pertinent to the transport of different types of radiation passing through matter, such as gamma and neutron rays. Among some reputable and well-known Monte Carlo codes that are generally utilized in nuclear physics and medical physics problems, MCNPX has attracted major attention of researchers (20)(21)(22)(23)(24).…”

“…In this study, to calculate the linear attenuation coeffi cient (μ) of investigated selenium and quercetin combinations, the simulation set-up and basic scheme are designed by considering the Beer-Lambert law (I = I 0 e -μx ), where I is the intensity of photons transmitted across some distance x, I 0 is the initial intensity of photons, μ is the linear attenuation coeffi cient and fi nally x is the distance travelled. Certain simulation equipment such as isotropic point source of radiation, selenium and quercetin combinations as attenuator material for primary radiation beam, lead collimator, de-tection fi eld to record the attenuated radiation beam from selenium and quercetin combinations and lead block to avoid detection fi eld from scattered radiation were designed in input fi le defi ned in the MCNPX input fi le in order to investigate the radiation attenuation properties of generated combinations (22)(23). The primary radiation beam originated from the isotropic point source was directed onto the selenium and quercetin combination.…”