20.500.12556/RUL-182724 Analysis of SDDR calculation method in a large tokamak model Understanding the shutdown dose rate (SDDR) plays a crucial role in the operation and maintenance of a fusion reactor. It is particularly important to ensure the safety of personnel and the environment during maintenance and decommissioning phases. In addition, both the prediction and management of SDDR are necessary precautions in the design and operation of fusion reactors. In the present study, SDDR is investigated on a simplified model of a large tokamak to achieve a better understanding of the calculation method, the rigorous two-step method (R2S). The JSIR2S code system, based on the R2S method, is currently being developed at the Jožef Stefan Institute and combines calculations with the MCNP transport code and the FISPACT inventory code. It has been evaluated against measurements at the TRIGA fission research reactor for fission applications, and in this work it is assessed for fusion applications as well. The aim of this study is to perform SDDR calculations at different cooling times in a model of a fusion reactor using the JSIR2S code. An isotopic analysis was also carried out to identify the parent isotopes that contribute the most to the SDDR near the horizontal ports. shutdown dose rate JSIR2S large tokamak true false true Angleški jezik Ni določen Članek v reviji 2026-05-21 13:37:14 2026-05-21 13:37:15 2026-05-22 04:49:55 0000-00-00 00:00:00 2026 0 0 8 str. Vol. 222, art. 115459 Jan. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.1 0920-3796 10.1016/j.fusengdes.2025.115459 251661315 1-s2.0-S0920379625006556-main.pdf 1-s2.0-S0920379625006556-main.pdf 1 E56605C0FEA97C2F824792A3421B204D 78338d7231b5f367396232cc56420057eb056a7aa42c63fdf4513fe5d28e63c0 84e05065-5509-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=234233 https://www.sciencedirect.com/science/article/pii/S0920379625006556 1 18b3ddb1-5509-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=234232 Fakulteta za matematiko in fiziko 0 0 0