Novel concrete compositions for γ-rays and neutron shielding using WC and B4C

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F21%3APU147858" target="_blank" >RIV/00216305:26220/21:PU147858 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2590048X21000108" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2590048X21000108</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.rinma.2021.100177" target="_blank" >10.1016/j.rinma.2021.100177</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Novel concrete compositions for γ-rays and neutron shielding using WC and B4C

Popis výsledku v původním jazyce

Concrete provides a superior shielding effect against γ-rays and neutron by reducing the radiation exposure to biological entities and their surroundings. A suitable amount of additives in the concrete mixture can enhance the shielding effect. With this perception, the mixing proportion of concrete has been prepared with different amounts of WC and B4C additives. The shielding effect of prepared concretes with WC and B4C additives have been investigated using experimental data (for 60Co and 252Cf sources), and theoretical prediction using codes MCNP6, XCOM, Auto-Zeff, and NXcom. Different shielding parameters such as; mass attenuation coefficient (μm), effective atomic number (Zeff), effective electron density (Neff), half-value layer (HVL), tenth-value layer (TVL), mean free path (MFP), and effective removal cross-section (ΣR) were calculated in the present work. The obtained experimental and MCNP6 results for γ-rays (μm) and neutron (ΣR) are in decent agreement with the difference of less than 6.5% and 8%, respectively. The outcomes of the present work show that the modified compositions have more advantages as compared to the pristine concrete. These also revealed that shielding parameters strongly depend on the atomic composition and density of additives of the prepared concrete. Hence, it has been demonstrated that the addition of an appropriate amount of WC and B4C to concrete may be an alternative option that can be used in several radiation protection applications.

Název v anglickém jazyce

Novel concrete compositions for γ-rays and neutron shielding using WC and B4C

Popis výsledku anglicky

Concrete provides a superior shielding effect against γ-rays and neutron by reducing the radiation exposure to biological entities and their surroundings. A suitable amount of additives in the concrete mixture can enhance the shielding effect. With this perception, the mixing proportion of concrete has been prepared with different amounts of WC and B4C additives. The shielding effect of prepared concretes with WC and B4C additives have been investigated using experimental data (for 60Co and 252Cf sources), and theoretical prediction using codes MCNP6, XCOM, Auto-Zeff, and NXcom. Different shielding parameters such as; mass attenuation coefficient (μm), effective atomic number (Zeff), effective electron density (Neff), half-value layer (HVL), tenth-value layer (TVL), mean free path (MFP), and effective removal cross-section (ΣR) were calculated in the present work. The obtained experimental and MCNP6 results for γ-rays (μm) and neutron (ΣR) are in decent agreement with the difference of less than 6.5% and 8%, respectively. The outcomes of the present work show that the modified compositions have more advantages as compared to the pristine concrete. These also revealed that shielding parameters strongly depend on the atomic composition and density of additives of the prepared concrete. Hence, it has been demonstrated that the addition of an appropriate amount of WC and B4C to concrete may be an alternative option that can be used in several radiation protection applications.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/8X20054" target="_blank" >8X20054: Experimentální a výpočetní analýzy stínících vlastností materiálů využívaných v radiační ochraně</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Results in Materials

ISSN

2590-048X

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

June 2021

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85120491619