SONGKLANAKARIN JOURNAL OF SCIENCE & TECHNOLOGY

Volume 42, No. 04, Month JULY, Year 2020, Pages 739 - 746

Investigation on elastic properties and radiation shielding of lead-recycled cathode ray tube glass system

Raewat Laopaiboon , Katayut Wichai , Sukhon Khottham , Jintana Laopaiboon and Oruethai Jaiboon

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The elastic and radiation shielding properties of lead-recycled cathode ray tube (CRT) glass were investigated in order to study the possible reduction in the use of toxic lead oxide glass by partial replacement using CRT glass waste. The elastic properties of lead-recycled glass were studied using the pulse-echo ultrasonic technique and it was found that the elastic properties varied with CRT content in the glass. This indicated the existence of some modifying cations in the CRT. The radiation shielding properties of the glass were also studied by means of the calculated mass attenuation coefficient, mean free path, and half-value layer using the WinXCom program. The addition of CRT glass was found to deteriorate the radiation shielding properties of lead glass. However, lead-recycled CRT glass still exhibited better radiation shielding properties than the conventional barite concrete. Therefore, lead-recycled CRT glass can be a potential candidate for radiation shielding applications

Keywords

lead oxide glass, cathode ray tube, recycled glass, elastic moduli, radiation shielding material

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