Monte carlo simulation of innovative neutron and photon shielding material composing of high density concrete, waste rubber, lead and boron carbide

Aim-O, P; Wongsawaeng, Doonyapong; Phruksarojanakun, Phiphat; Tancharakorn, Somchai

doi:10.1088/1742-6596/860/1/012043

Cited by 5 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since barite has the elemental composition known as BaSO 4 , Ba presents a heavy element with the characteristic properties to attenuate gamma radiation. The high-density cement in this work contained 45.45 w% of barite [6] to function as an effective gamma ray absorber. The mean free path parameter describes the average distance travelled by photons between any consecutive interaction (scattering or absorption).…”

Section: Results Of Mean Free Path Linear Attenuation Coefficient Anmentioning

confidence: 99%

“…The shielding material in this research composed of Portland cement type I, barite and various percentages of crumb rubber from 5 to 25 vol%, which 5 vol% step increment. All compositions were mixed together and fabricated into a cube shape with dimensions 5 x 5 inches [6].…”

Section: Materials and Shielding Preparationmentioning

confidence: 99%

“…This work focused on the buildup factor, which is the effect of the scattered and secondary radiation and is a function of the shielding material, the thickness and the energy of the radiation. The shielding material evaluated in the present study was high-density cement mixed with various percentages of crumb rubber [6]. Moreover, the prompt and secondary gamma rays will be considered in this study by the PGNAA method.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Buildup factor and mechanical properties of high-density cement mixed with crumb rubber and prompt gamma ray study

Aim-O

Wongsawaeng

Tancharakorn

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

Self Cite

View full text Add to dashboard Cite

Section: Results Of Mean Free Path Linear Attenuation Coefficient Anmentioning

confidence: 99%

Section: Materials and Shielding Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Buildup factor and mechanical properties of high-density cement mixed with crumb rubber and prompt gamma ray study

Aim-O

Wongsawaeng

Tancharakorn

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

Self Cite

View full text Add to dashboard Cite

“…Figure 4. 9 Experimental results of thermal neutron transmission for HDCR5 withvarious vol% of boron carbide[26] …”

mentioning

confidence: 99%

Development of innovative high-energy neutron and gamma-ray shielding material based on high density cement and crumb rubber

Aim-o

View full text Add to dashboard Cite

The incorporation of carbon and hydrogen-rich material into radiation shielding material can improve its shielding performance. High-density cement mixed with crumb rubber was studied to be a gamma ray and neutron shielding material. Shielding materials were designed using high-density cement mixed with 5 ? 25 vol% of crumb rubber. Monte Carlo N-Particle code was employed to simulate radiation shielding performances of the composed materials. The utilized neutron and photon sources were Am-241/Be and Co-60, respectively. These shielding designs were fabricated and experimentally evaluated on the radiation shielding properties. The cracking mechanism of high-density cement mixed with lead (HDCRL) was also investigated. The quantitative X-ray diffraction technique (QXRD) was used to determine the crystalline phases as well as elemental compositions of HDCRL. Buildup factors from gamma ray scattering, prompt and secondary gamma ray emissions from the neutron capture interaction were also evaluated. The prompt and secondary gamma ray emissions were determined using Prompt Gamma Neutron Activation Analysis (PGNAA). In addition, the mechanical properties of samples were evaluated using the Compressive Testing Machine (CTM). The high-density cement mixed with 5 vol% crumb rubber and 5 vol% lead powder demonstrated the highest neutron and gamma ray shielding performances. The neutron and photon attenuations were 64% and 68%, respectively, better than ordinary concrete. Analysis of the cracking mechanism of HDCRL revealed six crystalline phases: barite, portlandite, quartz, calcite, lead and PbO2. The weak adhesion of lead powder to high-density cement was the main cause of cracking. For photon interaction, the gamma interaction with high-density cement mixed with crumb rubber increased the buildup factor; however, the value was close to unity leading to the conclusion that the secondary gamma ray and prompt gamma ray were not present. For neutron interaction, no prompt or secondary gamma ray emission was detected using PGNAA technique. The average compressive strength indicated that the high-density cement mixed with 5 vol% crumb rubber exhibited higher strength than other specimens and that increasing the crumb rubber content decreased the mechanical property. This innovative composite radiation shielding material not only benefits nuclear science and engineering applications, but also helps solve the environmental issue of waste rubber.

show abstract

Conductive natural and waste rubbers composites-loaded with lead powder as environmental flexible gamma radiation shielding material

El‐Khatib

Doma

Badawi

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

It is well known that materials with lead (Pb) content are very effective as protective materials against radiation. Natural rubber (NR) has been loaded with 30 phr of N220 black (critical concentration) as a conductive and reinforcing filler. These rubber matrices are loaded with different concentrations of Pb powder (up to 100 phr) as filler. Gamma attenuation study was carried out using 3″ × 3″ NaI (Tl) (scintillation detector) gamma-ray spectrometer for (Cs-137), (Co-60), (Ba-133), and (Eu-152). The effect on the shielding property of Pb/NR composite was studied by varying the content of Pb and photon energy. It was found that the addition of Pb filler remarkably increases the linear attenuation coefficient (μ) of Pb/NR composites, especially for low photon energy. Linear attenuation coefficient experimental measures and theoretical calculations (using the XCOM code) were performed. It was noted that there is a reasonable agreement between measured and calculated results. In this paper, gamma-ray radiation shielding parameters are also studied for composites based on waste rubber. Its experimental results showed that Pb/W/NR composites have better γ shielding ability compared to Pb/NR ones at the Pb contents so, these are promising materials for fabricating protecting clothes against radiation in addition to their low cost and effective aid to get a clean environment.

show abstract

Monte carlo simulation of innovative neutron and photon shielding material composing of high density concrete, waste rubber, lead and boron carbide

Cited by 5 publications

References 3 publications

Buildup factor and mechanical properties of high-density cement mixed with crumb rubber and prompt gamma ray study

Buildup factor and mechanical properties of high-density cement mixed with crumb rubber and prompt gamma ray study

Development of innovative high-energy neutron and gamma-ray shielding material based on high density cement and crumb rubber

Conductive natural and waste rubbers composites-loaded with lead powder as environmental flexible gamma radiation shielding material

Contact Info

Product

Resources

About