| 세션명 | 일반구두발표 |
|---|---|
| 발표장 | 제4회장 |
| 논문코드 | O4-3 |
| 발표일 | 2024-04-3 |
| 발표시간 | 13:40-14:00 |
| 논문제목 | Efficient Non-Lead X-ray Shielding Sponges Incorporating Doped Metal Oxide and Bismuth Halide Composites |
| 발표자 | 샨무감마하링감 |
| 발표자 소속 | 부경대학교 |
| 저자 | 샨무감마하링감, 권대성, 강석규, 김정환† |
| 소속 | 부경대학교 |
| 논문초록 | Lead is the most widely used X-ray-shielding material, but it is heavy (density ≈ 11.34 g/cm3) and toxic. Therefore, the replacement of Pb with lightweight, ecofriendly materials would be beneficial. In this study, we developed efficient X-ray-shielding materials composed of sulfated cerium oxide (S-CeO2) and bismuth halides. Further, by pre-forming the doped metal oxide as a porous sponge matrix, and then incorporating the bismuth halides into the porous matrix, uniform, compact, and intimate composites with a high-attenuation cross-section were achieved. Owing to the synergetic effect of the doped metal oxide and bismuth halides, the resultant thin (approximately 3 mm) and lightweight (0.85 g·cm−3) composite achieved an excellent X-ray-shielding rate of approximately 92% at 60 kV, one of the highest values reported for non-heavy-metal shielding materials. |
THE POLYMER SOCIETY OF KOREA