نوع مقاله : مقاله فنی
نویسندگان
پژوهشکده پلاسما و گداخت هستهای، پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران، صندوق پستی: 51113-14399، تهران- ایران
کلیدواژهها
عنوان مقاله English
نویسندگان English
Tokamaks are recognized as one of the most promising devices for achieving nuclear fusion, operating within complex environments with high radiation levels. Upgrading these devices to enhance plasma efficiency and duration inevitably leads to increased radiation levels, making precise radiation dose estimation and the design of effective shielding systems essential. The Damavand tokamak, with its pure hydrogen plasma, generates both soft and hard X-rays. With sufficient data on these indirect ionizing radiations, the potential adverse effects can be minimized. Planned upgrades to the Damavand tokamak will extend plasma pulse duration from 22 ms to approximately 200 ms, resulting in a significant increase in radiation levels, estimated to be up to ten times higher in work areas, posing safety risks for personnel. In this study, we estimate the radiation dose in different areas of the upgraded Damavand tokamak laboratory based on experimental data, and we calculate specifications for new radiation shields using the MCNPX code to ensure laboratory safety. The required shielding dimensions were calculated for lead and concrete materials, allowing for a cost and feasibility assessment to guide the selection of the optimal implementation material.
کلیدواژهها English