Experimental and theoretical elastic studies on neodymium-doped zinc tellurite glasses

2022 ◽  
Vol 575 ◽  
pp. 121208
Author(s):  
S.N. Nazrin ◽  
M.K. Halimah ◽  
A.A.A. Awshah ◽  
S.P. Yee ◽  
L. Hasnimulyati ◽  
...  
Keyword(s):  
Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3913
Author(s):  
Aljawhara H. Almuqrin ◽  
Mohamed Hanfi ◽  
K. G. Mahmoud ◽  
M. I. Sayyed ◽  
Hanan Al-Ghamdi ◽  
...  

The radiation shielding competence was examined for a binary glass system xLa2O3 + (1 − x) TeO2 where x = 5, 7, 10, 15, and 20 mol% using MCNP-5 code. The linear attenuation coefficients (LACs) of the glasses were evaluated, and it was found that LT20 glass has the greatest LAC, while LT5 had the least LAC. The transmission factor (TF) of the glasses was evaluated against thicknesses at various selected energies and was observed to greatly decrease with increasing thickness; for example, at 1.332 MeV, the TF of the LT5 glass decreased from 0.76 to 0.25 as the thickness increased from 1 to 5 cm. The equivalent atomic number (Zeq) of the glasses gradually increased with increasing photon energy above 0.1 MeV, with the maximum values observed at around 1 MeV. The buildup factors were determined to evaluate the accumulation of photon flux, and it was found that the maximum values for both can be seen at around 0.8 MeV. This research concluded that LT20 has the greatest potential in radiation shielding applications out of the investigated glasses due to the glass having the most desirable parameters.


2021 ◽  
Vol 127 (2) ◽  
Author(s):  
M. S. Al-Buriahi ◽  
H. H. Hegazy ◽  
Faisal Alresheedi ◽  
H. H. Somaily ◽  
Chahkrit Sriwunkum ◽  
...  

2021 ◽  
Vol 24 ◽  
pp. 104202
Author(s):  
N. Elkhoshkhany ◽  
Samir Marzouk ◽  
M. El–Sherbiny ◽  
Sally Yousri ◽  
Mohammed S. Alqahtani ◽  
...  

Author(s):  
Renato Grigolon Capelo ◽  
Juliana M.P. Almeida ◽  
Douglas Faza Franco ◽  
Gael Yves Poirier ◽  
Cleber Renato Mendonça ◽  
...  

Author(s):  
Yongqi Zhang ◽  
Xiaoxi Li ◽  
Weichao Wang ◽  
Xianghua Zhang ◽  
Yinsheng Xu

2021 ◽  
Vol 116 ◽  
pp. 106609
Author(s):  
Y. Anantha lakshmi ◽  
K. Swapna ◽  
Sk. Mahamuda ◽  
M. Venkateswarlu ◽  
A.S. Rao

2021 ◽  
Vol 112 ◽  
pp. 110810
Author(s):  
R. El-Mallawany ◽  
Mauricio Ap Ribeiro ◽  
Lucas S. Lara ◽  
Ervin K. Lenzi ◽  
I.Abbas Ahmed Alsadig ◽  
...  

2020 ◽  
Vol 981 ◽  
pp. 73-77
Author(s):  
Nurul Ainaa Najihah Busra ◽  
Ramli Arifin ◽  
Sib Krishna Ghoshal ◽  
Rodziah Nazlan

Enhancing the optical performance of rare earth doped binary inorganic glasses is an ever-demanding quest. Samarium (Sm3+) doped zinc tellurite glasses containing Manganese (Mn) nanoparticles (NPs) with composition (59-x)TeO2-20ZnCl2-10ZnO-10Li2O-1Sm2O3-(x)Mn3O4, where x = 0 to 0.06 mol% are prepared by melt quenching technique. The role played by Mn NPs in enhancing the optical behaviors are analyzed and discussed. The XRD patterns confirm the amorphous nature of the glass. The UV-Vis-NIR spectra reveal seven prominent absorption bands of Sm3+ ions. The photoluminescence spectra display four peaks corresponding to 4G5/2→6H5/2, 4G5/2 →6H7/2, 4G5/2→6H9/2 and 4G5/2 →6H11/2 transitions. An enhancement in the luminescence intensity is observed up to 0.05 mol% concentration of NPs and the intensity quenches beyond it. The enhancement is attributed to local electric field effect of NPs in the proximity of Sm3+ ion. Our results on improved optical response via precise control of NPs contents may be useful for the development of solid state lasers and amplifiers.


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