Lead?Natural rubber composites as gamma radiation shields. II: High concentration
| Autor: | M. Madani, S. E. Gwaily, H. H. Hassan |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Materials science
Polymers and Plastics Vulcanization General Chemistry Radiation Radiation shield law.invention Natural rubber Electrical resistivity and conductivity law Attenuation coefficient visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Composite material Lead (electronics) Radiation resistance |
| Zdroj: | Polymer Composites. 23:495-499 |
| ISSN: | 1548-0569 0272-8397 |
| DOI: | 10.1002/pc.10450 |
| Popis: | Natural rubber composites were prepared by the incorporation of different lead concentration, namely: 100, 300, 500, 1000, 1500 and 2000 phr to be used as gamma radiation shields. A non-linear dependence of the attenuation coefficient upon the lead concentration was observed for both 60 Co and 137 Cs as gamma radiation sources. Sample containing the ultimate lead concentration (2000 phr) and thickness 1 mm was found to have 0.336 mm and 0.383 mm lead equivalent for 60 Co and 137 Cs respectively. Electrical and mechanical properties of the investigated composites were also measured. |
| Databáze: | OpenAIRE |
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