Influence of SeO2-Bi2O3 on structure and radiation shielding of waste cathode ray tubes (CRT) glasses

Alrowaili Z., Alshamari A., Alomayrah N., Alzahrani J. S., EKE C., Al-Buriahi M.

Applied Radiation and Isotopes, vol.231, 2026 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 231
  • Publication Date: 2026
  • Doi Number: 10.1016/j.apradiso.2026.112506
  • Journal Name: Applied Radiation and Isotopes
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, EMBASE, INSPEC, MEDLINE
  • Keywords: Gamma, Neutron, PHITS simulation, Radiation shielding, Waste CRT
  • Akdeniz University Affiliated: Yes

Abstract

In this paper, the effect of SeO2-Bi2O3 binary additive system on the hardness, density, chemical, morphological, and radiation shielding properties of waste cathode ray tubes (CRT) glasses was investigated. The density is 2.622, 2.899, and 2.322 g cm−3 for CRT+5S-B, CRT+10S-B, and CRT+20S-B, respectively. An increase in density and hardness is observed when the SeO2 additive ratio is 10%, whereas a decrease in density and hardness is observed when the SeO2 ratio reaches 20%. At 15 MeV, the linear attenuation coefficients (LACs) are 0.09684 cm−1 for CRT-5S-B, 0.11015 cm−1 for CRT-10S-B, and 0.09036 cm−1 for CRT-20S-B. The LACs are the highest for CRT-10S-B and they are the lowest for CRT-20S-B. At 15 MeV, the effective number (Zeff) is the maximum for CRT-20S-B with value of 30.17461 whereas they are the smallest for CRT-5S-B with value of 27.54284. At 0.1 MeV, the effective number (Zeff) is the maximum for CRT-20S-B, whereas they are the smallest for CRT-5S-B. The mean free paths (MFPs) of the CRT-10S-B are the smallest with value of 9.07823 cm, whereas they are the highest for CRT-20S-B with value of 11.06709 cm at 15 MeV. The total fast neutron removal cross section is 0.05856 cm−1 for CRT-5S-B 0.06359 cm−1 for CRT-10S-B, and 0.04986 cm−1 for CRT-20S-B. Consequently, the CRT-10S-B has superior shielding properties for both photons and fast neutrons.