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  ______     ___       _____    _____    _    _   
 /_____//   / _ \\    / ___//  |  ___|| | \  / || 
 `____ `   | / \ ||   \___ \\  | ||__   |  \/  || 
 /___//    | \_/ ||   /    //  | ||__   | .  . || 
 `__ `      \___//   /____//   |_____|| |_|\/|_|| 
 /_//       `---`   `-----`    `-----`  `-`  `-`  
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Text this: Effect of Bi2O3 content on optical and radiation shielding properties of (Na2O, K2O)-SiO2-CaO-Al2O3-B2O3 glass system