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Mar 15 – 21, 2024
Sheraton Waterside Hotel
US/Eastern timezone

Shielding Properties of Lead-Free Tellurite Glasses against Photons, Neutrons, and Ions

Mar 19, 2024, 5:39 PM
1m
3rd Floor - Poplar/Providence Hall (Sheraton Waterside Hotel)

3rd Floor - Poplar/Providence Hall

Sheraton Waterside Hotel

Poster High-Power Accelerator Components and Targets Poster Session - Light Reception

Speaker

Devendra Raj Upadhyay (Central Department of Physics, Institute of Science and Technology, Tribhuvan University, Nepal)

Description

The shielding capabilities of five different glass systems, namely 60TeO$_2$–(30-x)ZnO–5Bi$_2$O$_3$–5TiO$_2$-xB$_2$O$_3$, where x varies from 0 to 10 mol\%, against photons, protons, alpha particles, neutrons, and carbon ions were investigated. The study involved the theoretical analysis and Monte Carlo simulations of various shielding parameters such as attenuation coefficients, mean free path, value layers, effective atomic number, effective electron density, and build-up factors, spanning an energy range from 1 keV to 1 GeV. Additionally, rapid neutron removal cross-sections and effective conductivity for the transport properties of the glass compositions were examined. The simulation utilized the glass samples as shielding materials and subjected them to bombardment by photons emitted from Cs-137 and Co-60 sources. Stopping potentials and projected range of photons, alpha particles, and ions were also analyzed using the Stopping and Range of Ions in Matter (SRIM) software. The results indicated that the glass composition 60TeO$_2$–30ZnO–5Bi2O3–5TiO$_2$ exhibited superior attenuation capabilities against gamma rays, protons, alpha particles, and carbon ions in comparison to other samples. Conversely, the glass composition 60TeO$_2$–20ZnO–5Bi2O3–5TiO$_2$-10B$_2$O$_3$ displayed excellent neutron shielding behavior owing to its higher boron atom concentration. By comparing the calculated attenuation parameters, potentials, and ranges with previously reported data and recommended glass systems for nuclear applications, it is concluded that the selected glass sample demonstrated effective and comparable shielding properties. This study provides valuable insights into the shielding properties of different glass compositions against diverse radiation types. These findings are crucial for the development of shielding materials for nuclear applications and environments with potential radiation exposure.

Primary author

Devendra Raj Upadhyay (Central Department of Physics, Institute of Science and Technology, Tribhuvan University, Nepal)

Co-authors

Prof. Raju Khanal (Central Department of Physics, Institute of Science and Technology, Tribhuvan University) Dr Suffian Mohamad Tajudin (School of Medical Imaging, Sultan Zainal Abidin University, Malaysia)

Presentation materials