X-ray and gamma ray shielding behavior of concrete blocks

Hernández-Murillo, Christian Geovanni; Contreras, J. Rafael Molina; Escalera-Velasco, Luis Alberto; León-Martínez, Héctor Asael De; Rodríguez-Rodríguez, José Antonio; Vega‐Carrillo, Héctor René

doi:10.1016/j.net.2020.01.007

Cited by 38 publications

(12 citation statements)

References 22 publications

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“…Sinar X merupakan radiasi ionik, yang digunakan sebagai alat diagnostik dalam bidang medis. Pemanfaatan radiasi sinar X ini dalam bidang medis, karena daya tembusnya yang besar, sehingga dokter dapat mengetahui kelainan atau gangguan pada organ dalam tubuh tanpa intervensi [1,2]. Selain tidak mengganggu kenyamanan pasien, hasil yang diperoleh juga lebih cepat.…”

Section: Pendahuluanunclassified

Deteksi Perubahan Komposisi Cat Dinding Akibat Paparan Sinar X

2020

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Selama ini penelitian hanya fokus pada cara dan pemakaian alat proteksi untuk pasien dan pekerja radiasi. Bahan proteksi paparan radiasi ionik lain yang penting bagi pasien, pekerja radiasi, bahkan masyarakat umum adalah dinding ruangan radiologi. Dinding ruangan radiologi mempunyai syarat tertentu, seperti ketebalan, komposisi bahan, dan warna. Dinding harus berwarna putih agar bersih dari kotoran maupun mikroorganisme. Dinding ruangan tidak terkena paparan langsung, melainkan melalui hamburan, sehingga dosis paparan rendah. Dengan memvariasikan tegangan tabung sinar X seperti yang digunakan pada diagnostik, dilakukan pengamatan terhadap perubahan komposisi cat dinding dengan X-Ray Flourosence (XRF). Hasil penelitian menunjukkan perubahan besar pada laju dosis 1,19 mGy/s atau pada tegangan tabung 80 kV. Senyawa yang terkandung dalam cat menurun persentasenya, bahkan senyawa K2O dan Nb2O5 tidak terdeteksi. Hal ini menunjukkan bahwa jumlah pemakaian sinar X konvensional yang tinggi akan meningkatkan kerusakan cat dinding ruang radiologi. Kata kunci: Sinar X, cat dinding, X-Ray Flouroawnce (XRF), diagnostik

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Section: Pendahuluanunclassified

Deteksi Perubahan Komposisi Cat Dinding Akibat Paparan Sinar X

2020

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“…There are two possible ways of reducing Pb toxicity level: by mix with other materials and use Pb-free shielding in the form of nanocomposite materials. For reducing Pb toxicity some reseacher was reported composite using natural polymer such as cement-based with additional Pb shows HVL of 0.004 cm −1 for 80 keV 24 and filler fly ash and sand with additional glass shows HVL of 0.11 cm −1 for 140 keV 25 . Materials for Pb-free shielding was reported from various researcher with the composition ratio of various polymers and filler with high-density metals or metal oxide 23 , 26 .…”

Section: Introductionmentioning

confidence: 99%

Composites cement/BaSO4/Fe3O4/CuO for improving X-ray absorption characteristics and structural properties

Gharissah

Ardiansyah

Pauziah

et al. 2022

Sci Rep

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Composite cement/BaSO4/Fe3O4/CuO with a thickness of 0.6 cm for various amounts of CuO: 2 wt%, 4 wt%, 6 wt%, and 8 wt% were successfully synthesized for the X-ray radiation shield. The bonding characteristics of composite and structural properties were determined using Fourier transform infrared spectra for the wavelength range of 4000–400 cm−1 and X-ray diffraction with the range of 2θ from 25° to 50°, respectively. The shielding ability was measured using a mobile X-ray with an energy of 55, 66, and 77 keV for determining the mass and linear attenuation coefficient, electronic and atomic cross-section. These shield characteristics best agreement with theoretical calculation from the XCOM database for energy < 77 keV with half value layer (HVL) < 0.3 cm. The best shielding in this study indicated by the lowest HVL and MFP is composite for CuO 8 wt%. The HVL and MFP shows better values compared to the previous reported using composite rubber-based, indicated high potentials composite in this study for design new and efficient radiology rooms as an alternative concrete, especially for X-ray radiation, in the future.

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“…It is well known that gamma photons have negative effects on the human body and can cause damage to DNA and cells. In any nuclear or medical facility, a set of precautions must be followed, and one of the most important precautions is the use of radiation-protective materials [ 1 , 2 , 3 , 4 ]. Historically, lead and concretes have been extensively applied in radiation shielding applications thanks to their effective attenuation ability, high density, availability, inexpensive price, elevated attenuation factors, and low maintenance [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Gamma-ray Shielding Performance of CuO-CdO-Bi2O3 Bentonite Ceramics

et al. 2022

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The purpose of this research is to identify the radiation shielding capability of ceramics adding CuO, CdO, and Bi2O3 with diverse wt (%). The chemical compositions of the raw ceramics were documented through Energy Dispersive X-ray “EDX” techniques. For aesthetic appeal and solidification, CuO has been chosen to be added to ceramic. Moreover, in the interest of increasing the radiation shielding ability, the high atomic number and density of both CdO and Bi2O3 were suggested for the raw ceramics. To obtain the morphological features of the prepared ceramic samples, a Scanning Electron Microscope, or SEM, was utilized. To verify the experimental results, the MCA value obtained from the Phy-X software was compared to the experimental value collected from the HPGe detector. At energies 0.06 MeV, 0.662 MeV, 1.173 MeV, and 1.333 MeV the linear and mass attenuation coefficients of the prepared ceramics have been measured using a high purity germanium “HPGe” detector as well as three different point sources. Moreover, the relationship between ln(I) and the thickness of the ceramics has been presented here, and the comparison between the LAC of the prepared ceramics with other materials has also been displayed. Bentonite ceramic containing CuO (15 mol %)-CdO (15 mol %)-Bi2O3 (20 mol %) with density 3.6 showed the lowest HVL, MFP, and TVL at all studied energies, yet pure Bentonite ceramic containing only CuO (50 mol %), having density 3.4, presented the greatest values. Hence, it can be concluded that the addition of CdO and Bi2O3 enhances the radiation shielding ability.

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X-ray and gamma ray shielding behavior of concrete blocks

Cited by 38 publications

References 22 publications

Deteksi Perubahan Komposisi Cat Dinding Akibat Paparan Sinar X

Deteksi Perubahan Komposisi Cat Dinding Akibat Paparan Sinar X

Composites cement/BaSO4/Fe3O4/CuO for improving X-ray absorption characteristics and structural properties

Investigation of the Gamma-ray Shielding Performance of CuO-CdO-Bi2O3 Bentonite Ceramics

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