Determination of gamma ray attenuation coefficients of Al-4% Cu/B4C metal matrix composites at 662, 1173 and 1332 keV

Abstract

Gamma ray attenuation coefficients of metal matrix composites have been investigated. For this purpose, the linear attenuation coefficients of composites containing boron carbide (B 4 C) at different rates have been measured using a gamma spectrometer that contains a NaI(Tl) detector and MCA at 662, 1173 and 1332 keV, which are obtained from 137 Cs and 60 Co sources. The measured results were compared with the calculation obtained using computer code of XCOM for 1 keV-1 GeV gamma energies.

A Study on the Gamma-Ray Attenuation Coefficients of Al₂O₃ and Al₂O₃.TiO₂ Compounds

“…Furthermore, they are similar to the values reported for B4C Al metal matrix composites [7] at a gamma energy level of 661.7 keV. However, the linear attenuation coefficients of Al2O3.TiO2;mm and Al2O3.TiO2;nm are lower than those of Al-4% Cu/B4C metal matrix composites [6] and TiB2-reinforced B4C-SiC [10] The best HVL value of 3.57 cm obtained in this study is better than the results of [9], but significantly less than the values reported for some stainless and boron steels [8].…”

“…The linear attenuation coefficients of Al2O3;mm and Al2O3;nm are similar to those of TiB2-reinforced B4C-silicon carbide composites [5] and spark plasmasintered B4C-Al [9]; however, they are higher than the values reported for h-BN and h-BN-TİB2 composites [4] and lower than those of Al-4% Cu/B4C metal matrix composites [6], B4C Al metal matrix composites [7], and some stainless and BSs steels [8] at 661.7 keV. At gamma energies of 1173.2 and 1332.5 keV, Al2O3;mm and Al2O3;nm samples have lower linear attenuation coefficients than Al-4% Cu/B4C metal matrix composites [6] and TiB2-reinforced B4C-SiC [10].…”

“…The linear attenuation coefficients of Al2O3;mm and Al2O3;nm are similar to those of TiB2-reinforced B4C-silicon carbide composites [5] and spark plasmasintered B4C-Al [9]; however, they are higher than the values reported for h-BN and h-BN-TİB2 composites [4] and lower than those of Al-4% Cu/B4C metal matrix composites [6], B4C Al metal matrix composites [7], and some stainless and BSs steels [8] at 661.7 keV. At gamma energies of 1173.2 and 1332.5 keV, Al2O3;mm and Al2O3;nm samples have lower linear attenuation coefficients than Al-4% Cu/B4C metal matrix composites [6] and TiB2-reinforced B4C-SiC [10]. While the linear attenuation coefficient values of Al2O3.TiO2;mm and Al2O3.TiO2;nm are higher than those of h-BN and h-BN-TİB2 composites [4], TiB2-reinforced B4C-silicon carbide composites [5], and spark-plasma sintered B4C-Al [9], they are lower than the values reported for Al-4% Cu/B4C metal matrix composites [6], and some stainless and BSs steels [8].…”

“…At gamma energies of 1173.2 and 1332.5 keV, Al2O3;mm and Al2O3;nm samples have lower linear attenuation coefficients than Al-4% Cu/B4C metal matrix composites [6] and TiB2-reinforced B4C-SiC [10]. While the linear attenuation coefficient values of Al2O3.TiO2;mm and Al2O3.TiO2;nm are higher than those of h-BN and h-BN-TİB2 composites [4], TiB2-reinforced B4C-silicon carbide composites [5], and spark-plasma sintered B4C-Al [9], they are lower than the values reported for Al-4% Cu/B4C metal matrix composites [6], and some stainless and BSs steels [8]. Furthermore, they are similar to the values reported for B4C Al metal matrix composites [7] at a gamma energy level of 661.7 keV.…”

“…The increasingly widespread usage of radioisotopes in recent years has created a radiation-protection problem, owing to which shielding solutions had to be developed. We conducted a literature search to obtain data on the radiation-attenuation properties of of some materials [1][2][3][4][5][6][7][8][9][10]. Bagheri et al examined the mass attenuation coefficients of silicate glasses containing different concentration of Bi2O3, PbO, and BaO using XCOM and XMuDat programs, in the energy range of 10 keV-10 MeV [1].…”