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Packaging Certification Program Methodology for Determining Dose Rates from Small Gram Quantities in Shipping Packagings
| 题名： | Packaging Certification Program Methodology for Determining Dose Rates from Small Gram Quantities in Shipping Packagings |
| 作者： | Nathan, S. J.; Risner, J. M.; Sitaraman, S. |
| 关键词： | Neutrons##Radiation transport##Packaging##Compliance##Computer codes##Containers##Containment##Criticality##Dose rates##Fissile materials##Hazardous materials##Mixtures##Neutron sources##Photons##Radiations##Radioactive materials##Radioisotopes##Regulations##Spectra## |
| 摘要： | The Small Gram Quantity (SGQ) concept is based on the understanding that small amounts of hazardous materials, in this case radioactive materials, are significantly less hazardous than large amounts of the same materials. This study describes a methodology designed to estimate an SGQ for several neutron and gamma emitting isotopes that can be shipped in a package compliant with 10 CFR Part 71 external radiation level limits regulations. These regulations require packaging for the shipment of radioactive materials perform, under both normal and accident conditions, the essential functions of material containment, subcriticality, and maintain external radiation levels within regulatory limits. 10 CFR 71.33(b)(1)(2)&(3) state radioactive and fissile materials must be identified and their maximum quantity, chemical and physical forms be included in an application. |
| 总页数： | 152 |
| 报告类型： | 科技报告 |
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