(Diploma In Science) Universiti Teknologi MARA Cawangan Sabah, Kampus Kota Kinabalu
(Bachelor of Science (Hons) Physics) Universiti Teknologi MARA Cawangan Pahang, Kampus Jengka
(Doctor of Philosophy in Material Science) Universiti Putra Malaysia
Simulated radiation shielding parameter for energy 1 keV-100 GeV of lead-free borotellurite based glass for nuclear medicine application N. F. Rozi, L. Hasnimulyati, A. Azuraida, and Chalcogenide Letters, 2025 This paper studies on the theoretical ionizing radiation shielding parameter for the glass of {[(TeO2)0.7 (B2O3)0.3]0.7 [ZnO]0.3}1-x {CeO2}x by using two software; WinXCOM and PhyX software, which investigate the ability of cerium oxide. The investigation revealed that the 5CeZBTe glass sample, which included the greatest concentration of CeO2 (0.05 mol), showed the greatest linear attenuation coefficient (LAC) and least values in Half Value Layer (HVL) and Mean Free Path (MFP). These results suggest that 5CeZBTe glass has significant potential as an alternative to traditional lead-based radiation shielding, offering a safer environment for both patients and healthcare professionals in medical settings.
Influence of neodymium doping on radiation shielding properties of yttrium lead borotellurite glass system M. R. S. Nasuha, H. Azhan, L. Hasnimulyati, W. A. W. Razali, Y. Norihan, et al. Chalcogenide Letters, 2025 The need for effective shielding materials has grown as radiation-based technologies have been more widely used. Glasses doped with rare earth elements like neodymium oxide, are promising candidates due to their enhanced radiation attenuation properties. Using Phy-X software, this research examines how neodymium oxide doping affects the shielding properties of yttrium lead borotellurite glass. X-ray diffraction confirmed the amorphous structure, while density measurements showed increased density with neodymium oxide addition. The Phy-X software calculated radiation shielding parameters for gamma energies from 10⁻³ to 10⁵ MeV. The results demonstrate that neodymium oxide improves gamma irradiation attenuation and enhances the glass system's radiation shielding capabilities.
Simulation-Based Radiation Shielding and Optical Properties of Thulium-Doped Bismuth Tellurite Glass Nur Arina Mat Rusni, Azuraida Amat, Wan Yusmawati Wan Yusoff, Nor Azlian Abdul-Manaff, Nurazlin Ahmad, et al. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2025 Lead-based radiation shielding material is currently used in industry to shield against high-penetration radiation such as gamma rays. However, lead is harmful to humans, animals, and plants. This study proposed a new composition of transparent lead-free glass. Using the melt and quench technique, thulium-doped bismuth tellurite glass with composition (TeO2)1-x (Bi2O3)x (Tm2O3)0.02 where x = 0.05, 0.10, 0.15, and 0.20 mol % was fabricated. Significantly, the glasses with Bi2O3 concentration of 5 mol % and 10 mol% have a higher density than the commercial glass containing lead indicating the fabricated glasses would perform better as a radiation shielding material. Comparing the simulated-radiation shielding properties using software Phy-X and XCom, the glass with 10 mol% of Bi2O3 performs better as radiation shielding material than 5 mol% of Bi2O3. Meanwhile, glass with 5 mol% of Bi2O3 performs better than 10 mol% of Bi2O3 in terms of optical properties. Considering both radiation shielding and optical properties, the fabricated lead-free glass can be widely used in radiation shielding applications that require transparency.
Theoretical Ionizing Radiation Shielding Parameters of Thulium Doped Zinc Borotellurite Glass Nur Arina Mat Rusni, Hasnimulyati Laoding, Azuraida Amat E3s Web of Conferences, 2024 Ionizing radiation is considered hazardous to human health but it is very crucial for many applications such as nuclear fuel processing and medical radiography. Glass has played a huge role as a shielding material for ionizing radiation in the application that requires line of sight. Nowadays, lead glass is commonly used in industry due to its properties of high density. However, lead toxicity can give harmful effects on humans’ health and the environment. As for concrete, it takes a lot of space, blocks the line of sight and the density of concrete may reduce due to prolonged exposure to radiation. To cater these problems, this study proposed a glass composition that is thulium doped zinc borotellurite glass. Thulium is used due to its potential such as resistance to corrosion and oxidation, good ductility and does not pose any environmental threat. In this study, Phy-X and WinXCom software is used. The main goal of this research is to study the theoretical radiation shielding parameters of thulium doped zinc borotellurite glass. Based on the results, it is found that the best glass sample is the sample composition with 5% thulium oxide whereby it has the highest value for mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), atomic cross section (ACS), electronic cross section (ECS) and effective atomic number (Zeff). The best glass sample with 5% thulium oxide also yields the results of the lowest half-value layer (HVL) and mean free path (MFP). Comparing the results of Phy-X and WinXCom, it is found that the deviation between the software is less than 5%. Also, when the results for each radiation shielding parameter of 5% thulium oxide are compared with other radiation shielding materials, significant results are found where the proposed glass sample provides better shielding against gamma radiation.
Effect of thulium oxide on structural, refractive index, and optical band gap of bismuth-boro-tellurite glass system R. Falihan, L. Hasnimulyati, N. A. Abdul-Manaf, W. Y. W. Yusoff, A. H. Azmi, et al. Chalcogenide Letters, 2022 The bismuth-boro-tellurite glass has been chosen by various analysts from all around the world due to its advantages and ability the improvement of glass technologies. This paper aims to study the structural and optical properties of the bismuth-boro-tellurite glass system with different amounts of thulium oxide as a glass dopant. Four glass sample from chemical composition of [(B2O3)0.25 (TeO2)0.75]0.75 [(Bi2O3)0.25]1-x [Tm2O3]x (x = 0.000, 0.005, 0.010, and 0.015 mol%) were prepared by melt-quenching method with suitable melting and quenching temperature. The Ultraviolet-Visible Spectroscopy (UV-Vis) was used for recording their optical absorption spectra. These optical absorption spectra were used to determine the optical band gap energy, refractive index, and polarizability of all glass samples. While the structural changes are observed using X-ray diffractometer (XRD) and Fourier Transform Infrared Spectroscopy (FTIR).
Optical band gap and luminescence study of yttrium doped neodymium lead borotellurite glass system S. N. M. Rafien, A. Hashim, H. Laoding, W. A. W. Razali, N. Yahya, et al. Chalcogenide Letters, 2022 "Glasses of composition (49-x)H3BO3-35TeO2-15PbO-1.0Nd2O3-xY2O3 (x = 0.0, 0.5, 1.0, 1.5, 2.0 and 2.5 mol%) were successfully prepared by a melt-quench method. The effect of Y2O3 on the optical properties of the glasses were investigated by using Uv-Vis NIR and photoluminescence spectroscopy. X-ray diffraction pattern of the prepared glasses exhibits amorphous nature. Absorption spectra of the glasses are recorded in the range 400 – 1100 nm and shows eleven absorption peaks. In order to determine the optical band gap of the glass sample, the Uv-Vis NIR measurement has been carried out in the room temperature. The values of direct and indirect optical band gap initially decreasing before increasing, which were attributed to structural changes induced by the inclusion of Y2O3. The luminescence spectra were obtained under 581 nm wavelength."
Effect of yttrium on the physical, elastic, and structural properties of neodymium-doped lead borotellurite glass M. R. S. Nasuha, H. Azhan, W. A. W. Razali, L. Hasnimulyati, Y. Norihan Journal of Materials Science Materials in Electronics, 2021 In this study, a series of glass systems with a composition of (49 − x)H3BO3–35TeO2–15PbO–1.0Nd2O3–xY2O3 (x = 0.0, 0.5, 1.0, 1.5, 2.0, and 2.5 mol%) was prepared via melt-quench technique. The effect of Y2O3 content on the density, molar volume, oxygen packing density, elastic, and structural properties were investigated. The density and molar volume were found to vary concerning Y2O3 content. Ultrasonic non-destructive testing was employed at room temperature for measuring the elastic properties of the prepared glass samples. The density data, ultrasonic velocities, and measured elastic moduli were found to be composition dependent with Y2O3 content. The Y2O3 modifier was expected to change the physical properties of neodymium-doped lead borotellurite glasses. The structure analyzed using X-ray diffraction was confirmed the amorphous nature of the prepared glasses. Fourier Transform Infrared Spectroscopy has been carried out and reveals that the inclusion of Y2O3 into the glass system tends to increase the number of bridging oxygen atoms. All element study of the glass sample was proved by energy dispersive X-ray analysis.
Structural and elastic properties studies of yttrium lead borotellurite glass doped with neodymium oxide Chalcogenide Letters, 2021
Effect of Thulium in Bismuth-Boro-Tellurite glass system on radiation shielding parameters using Xcom, Phy-X/PSD, and NgCAL software NF Ramli, A Amat, NAM Rusni, WYW Yusoff, H Laoding Journal of Ovonic Research Vol 22 (2), 90-112 , 2026 2026
Elastic Studies of Cerium Doped Zinc Borotellurite Glass H Laoding, A Amat, SNM Rafien, A Hashim, NB Mohamed, I Mansor Scientific Research Journal 23 (1), 22-34 , 2026 2026
Bismuth's role in quaternary thulium doped tellurite glasses: Achieving optical clarity and radiation shielding NAM Rusni, NA Abdul-Manaf, N Ahmad, L Hasnimulyati, WYW Yusoff, ... Defence Technology , 2025 2025 Citations: 6
Influence of neodymium doping on radiation shielding properties of yttrium lead borotellurite glass system MRS Nasuha, H Azhan, L Hasnimulyati, WAW Razali, Y Norihan Chalcogenide Letters 22 (1), 23-31 , 2025 2025 Citations: 2
Simulated radiation shielding parameter for energy 1 keV-100 GeV of lead-free borotellurite based glass for nuclear medicine application. NF Rozi, L Hasnimulyati, A Azuraida Chalcogenide Letters 22 (1) , 2025 2025 Citations: 4
Program Mobiliti Kunjungan Hormat Universitas Halu Oleo ke UiTM Pahang H Laoding, EAR Engku Ariff 2024
Elastic properties of yttrium trioxide doped neodymium lead borotellurite glass system SN Mohd Rafien, A Hashim, WA Wan Razali, H Laoding, N Yahya SCIENTIFIC PROJECT COLLOQUIUM (SPC 2024), 16-21 , 2024 2024
Simulation-Based Radiation Shielding and Optical Properties of Thulium-Doped Bismuth Tellurite Glass RNA MAT, A Amat, YW WAN, NA Abdul-Manaff, N Ahmad, H Laoding, ... JOURNAL OF ADVANCED RESEARCH 125 (1), 112-126 , 2024 2024 Citations: 3
Theoretical ionizing radiation shielding parameters of thulium doped zinc borotellurite glass NAM Rusni, H Laoding, A Amat E3S Web of Conferences 481, 03009 , 2024 2024 Citations: 7
Gamma-irradiation Effect on Optical Properties of [(TeO₂) ₀. ₇ (B₂O₃) ₀. ₃] ₀. ₇₅ (BaO) ₀. ₂₅ glass A Amat, NA Mat Rusni, H Laoding, H Mohamed Kamari, I Mansor 2023
Effect of Ce4+ and Ce4+ in boro-tellurite based glass on optical and structural properties R NAM, A Amat, N Ahmad, H Laoding, WY Wan Yusoff, NA Abdul Manaf 2023
Effect of thulium oxide on structural, refractive index, and optical band gap of bismuth-boro-tellurite glass system. R Falihan, L Hasnimulyati, NA Abdul-Manaf, WYW Yusoff, AH Azmi, ... Chalcogenide Letters 19 (10) , 2022 2022 Citations: 11
Comparison study of elastic, physical and structural properties for strontium oxide and manganese oxide in borotellurite glasses for high strength glass application NNS Nidzam, HM Kamari, MSM Sukari, FAM Alauddin, H Laoding, ... Journal of Inorganic and Organometallic Polymers and Materials 32 (1), 353-364 , 2022 2022 Citations: 15
Experimental and theoretical elastic studies on neodymium-doped zinc tellurite glasses SN Nazrin, MK Halimah, AAA Awshah, SP Yee, L Hasnimulyati, I Boukhris, ... Journal of Non-Crystalline Solids 575, 121208 , 2022 2022 Citations: 27
Electronic polarizability and optical basicity of BaO-B2O3-TeO2 glass system A Amat, MK Halimah, M Ishak, SN Nazrin, NN Syamimi, L Hasnimulyati 2021 Citations: 5
Effect of yttrium on the physical, elastic, and structural properties of neodymium-doped lead borotellurite glass MRS Nasuha, H Azhan, WAW Razali, L Hasnimulyati, Y Norihan Journal of Materials Science: Materials in Electronics 32 (18), 22890-22897 , 2021 2021 Citations: 7
Comparison Study of Elastic, Physical and Structural Properties for Strontium Oxide and Manganese Oxide in Borotellurite Glasses for High Strength Glass Application N NNS, HMM Kamari, MSM Sukari, FAM Alauddin, H Laoding, I Boukhris, ... 2021
Structural and elastic properties studies of yttrium lead borotellurite glass doped with neodymium oxide. MRS Nasuha, H Azhan, WAW Razali, L Hasnimulyati, Y Norihan Chalcogenide Letters 18 (8) , 2021 2021 Citations: 3
Structural properties of cerium oxide doped zinc borotellurite glass H Laoding, H Mohamed Kamari, AH Shaari, I Mansor, A Amat, ... Gading Journal of Science and Technology 4 (2), 58-65 , 2021 2021 Citations: 3
MOST CITED SCHOLAR PUBLICATIONS
Influence of bismuth oxide on gamma radiation shielding properties of boro-tellurite glass MK Halimah, A Azuraida, M Ishak, L Hasnimulyati Journal of non-crystalline solids 512, 140-147 , 2019 2019 Citations: 202
The effect of erbium oxide in physical and structural properties of zinc tellurite glass system SN Nazrin, MK Halimah, FD Muhammad, JS Yip, L Hasnimulyati, ... Journal of Non-Crystalline Solids 490, 35-43 , 2018 2018 Citations: 114
A comparative study of the experimental and the theoretical elastic data of Tm3+ doped zinc borotellurite glass L Hasnimulyati, MK Halimah, A Zakaria, SA Halim, M Ishak Materials Chemistry and Physics 192, 228-234 , 2017 2017 Citations: 59
Influence of gamma radiation on the structural and optical properties of thulium-doped glass MK Halimah, L Hasnimulyati, A Zakaria, SA Halim, M Ishak, A Azuraida, ... Materials Science and Engineering: B 226, 158-163 , 2017 2017 Citations: 38
Experimental and theoretical elastic studies on neodymium-doped zinc tellurite glasses SN Nazrin, MK Halimah, AAA Awshah, SP Yee, L Hasnimulyati, I Boukhris, ... Journal of Non-Crystalline Solids 575, 121208 , 2022 2022 Citations: 27
GAMMA RAY SHIELDING PARAMETER OF BARIUM-BORO-TELLURITE GLASS. A Azuraida, MK Halimah, M Ishak, L Hasnimulyati Chalcogenide Letters 17 (4) , 2020 2020 Citations: 24
Structural and optical properties of Tm2O3-doped zinc borotellurite glass system L Hasnimulyati, MK Halimah, A Zakaria, SA Halim, M Ishak, C Eevon J. Ovonic Res 12 (6), 291-299 , 2016 2016 Citations: 24
Effect of Nd3+ ions on physical and optical properties of yttrium lead borotellurite glass system MRS Nasuha, H Azhan, L Hasnimulyati, WAW Razali, Y Norihan Journal of Non-Crystalline Solids 551, 120463 , 2021 2021 Citations: 16
Comparison study of elastic, physical and structural properties for strontium oxide and manganese oxide in borotellurite glasses for high strength glass application NNS Nidzam, HM Kamari, MSM Sukari, FAM Alauddin, H Laoding, ... Journal of Inorganic and Organometallic Polymers and Materials 32 (1), 353-364 , 2022 2022 Citations: 15
Effect of thulium oxide on structural, refractive index, and optical band gap of bismuth-boro-tellurite glass system. R Falihan, L Hasnimulyati, NA Abdul-Manaf, WYW Yusoff, AH Azmi, ... Chalcogenide Letters 19 (10) , 2022 2022 Citations: 11
Elastic properties of thulium doped zinc borotellurite glass L Hasnimulyati, MK Halimah, Z Azmi, AH Shaari, M Ishak Materials Science Forum 863, 70-74 , 2016 2016 Citations: 10
Theoretical ionizing radiation shielding parameters of thulium doped zinc borotellurite glass NAM Rusni, H Laoding, A Amat E3S Web of Conferences 481, 03009 , 2024 2024 Citations: 7
Effect of yttrium on the physical, elastic, and structural properties of neodymium-doped lead borotellurite glass MRS Nasuha, H Azhan, WAW Razali, L Hasnimulyati, Y Norihan Journal of Materials Science: Materials in Electronics 32 (18), 22890-22897 , 2021 2021 Citations: 7
Bismuth's role in quaternary thulium doped tellurite glasses: Achieving optical clarity and radiation shielding NAM Rusni, NA Abdul-Manaf, N Ahmad, L Hasnimulyati, WYW Yusoff, ... Defence Technology , 2025 2025 Citations: 6
Optical Properties of La 3+ NPs/Ag + Co-Doped Zinc Borotellurite Glass MF Faznny, HM Kamari, AA Latif, FD Muhammad, L Hasnimulyati Solid State Phenomena 290, 3-8 , 2019 2019 Citations: 6
Elastic constants of Tm-doped glass by bulk compression model H Laoding, HM Kamari, A Zakaria, AH Shaari, I Mansor Solid State Sci. Technol. 24 (1), 49-60 , 2016 2016 Citations: 6
Electronic polarizability and optical basicity of BaO-B2O3-TeO2 glass system A Amat, MK Halimah, M Ishak, SN Nazrin, NN Syamimi, L Hasnimulyati 2021 Citations: 5
Simulated radiation shielding parameter for energy 1 keV-100 GeV of lead-free borotellurite based glass for nuclear medicine application. NF Rozi, L Hasnimulyati, A Azuraida Chalcogenide Letters 22 (1) , 2025 2025 Citations: 4
Effects of gamma radiation on the elastic properties of thulium doped zinc borotellurite glass L Hasnimulyati, MK Halimah, Z Azmi, AH Shaari, M Ishak Solid State Phenomena 268, 8-12 , 2017 2017 Citations: 4
Simulation-Based Radiation Shielding and Optical Properties of Thulium-Doped Bismuth Tellurite Glass RNA MAT, A Amat, YW WAN, NA Abdul-Manaff, N Ahmad, H Laoding, ... JOURNAL OF ADVANCED RESEARCH 125 (1), 112-126 , 2024 2024 Citations: 3
