Nuclear Shielding for the Toroidal Field Coils of ITER

Loughlin, M.; Polunovskiy, E.; Ioki, K.; Merola, M.; Sannazzaro, G.; Sawan, M.E.

doi:10.13182/fst11-a12331

Cited by 7 publications

(11 citation statements)

References 2 publications

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“…The maximum flux of the fast neutron arriving at TFC was calculated to be 1.56E × 10 9 n cm −2 s −1 and 4.91E × 10 16 n cm −2 for one full power year. In particular, the maximum TFC fast neutron 4.91E × 10 17 n cm −2 after 10 full power years is also within the radiation limits given in Loughlin . From Figure , the BP structure was subjected to the maximum 0.158 dpa/FPY, and the vacuum vessel was subjected to the maximum 2.52E × 10 −3 dpa/FPY due to the protection of the preceding components.…”

Section: Shielding Evaluation Of the Integrated Blanket Systemsupporting

confidence: 52%

Conceptual design of the HCCB blanket system integration for CFETR

et al. 2019

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Summary In a fusion power plant, the integration of the blanket system in the design progress is of vital importance to address the fundamental function of sufficient tritium production, reliable nuclear heat extraction, and permanent components protection due to the complex assembling systems into the tokamak vessel. Some progress activities of the blanket system design and integration for China fusion engineering test reactor (CFETR) are developed. The integration work involves the design of the breeding blanket, back plate support, shielding blanket, and supporting structures. To guarantee normal operation of the reactor, the design and arrangement of cooling pipes are very critical. The layout of the complex cooling pipes inside the blanket system is designed and integrated. Interfaces between main connecting components are designed for blanket system integration. In this work, the U‐shaped HCCB blanket is utilized as the adaption breeding module into the integrated blanket system. The three‐dimensional (3D) neutronic analyses verified that the integrated design of the blanket system could well meet the requirements of tritium self‐sufficiency and neutron shielding. The nuclear heat generation of main components in the reactor is obtained with a nuclear energy multiplication factor of 1.35. The primary principle during the integration is to accommodate all the components allocated on the vacuum vessel. This work is the preliminary integration design and validation for CFETR blanket system, and further detailed design will be performed around these obtained references for better fusion feasibility and performance in the next‐step design stage.

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Section: Shielding Evaluation Of the Integrated Blanket Systemsupporting

confidence: 52%

Conceptual design of the HCCB blanket system integration for CFETR

et al. 2019

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“…The related radiation limits were given in Refs. [9][10][11], which limited of fast neutron (>0.1 MeV) fluence in WP magnet superconductor 1 × 10 19 n/cm 2 , and in WP insulator 5 × 10 17 n/cm 2 [9,10], while the peak local nuclear heating in magnet conductor was 1 × 10 −3 W/cm 3 [9] and the peak displacement damage to TFC was 5 × 10 −4 dpa [11].…”

Section: Shielding Performancementioning

confidence: 99%

Preliminary neutronics design and analysis of helium cooled solid breeder blanket for CFETR

Chen

et al. 2015

Fusion Engineering and Design

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“…Data for estimates of the crucial quantities clearly come from radiation transport simulations and these are very extensive. Detailed radiation transport models of the ITER machine [7] and the tokamak building itself have been created. These models are distributed among ITER parties to provide a consistent basis for analysis.…”

Section: Licensing Processmentioning

confidence: 99%

“…These models are distributed among ITER parties to provide a consistent basis for analysis. Specifications on plasma scenarios, material specifications and quality assurance are also given [7]. In this way the nuclear analysis effort is co-ordinated and controlled and contributes to the argument before the French regulator that the safety case is technically justified.…”

Section: Licensing Processmentioning

confidence: 99%