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Nuclear analyses for the ITER ECRH launcher

A. Serikov, U. Fischer, R. Heidinger, P. Spaeh, S. Stickel, H. Tsige-Tamirat2008年被引用 16Nuclear FusionIF 3出版社

Computational results of the nuclear analyses for the ECRH launcher integrated into the ITER upper port are presented. The purpose of the analyses was to provide the proof for the launcher design that the nuclear requirements specified in the ITER project can be met. The aim was achieved on the basis of 3D neutronics radiation transport calculations using the Monte Carlo code MCNP. In the course of the analyses an adequate shielding configuration against neutron and gamma radiation was developed keeping the necessary empty space for mm-waves propagation in accordance with the ECRH physics guidelines. Different variants of the shielding configuration for the extended performance front steering launcher (EPL) were compared in terms of nuclear response functions in the critical positions. Neutron damage (dpa), nuclear heating, helium production rate, neutron and gamma fluxes have been calculated under the conditions of ITER operation. It has been shown that the radiation shielding criteria are satisfied and the supposed shutdown dose rates are below the ITER nuclear design limits.

日本語訳

ITER上部ポートに統合されたECRHランチャーの核解析の計算結果を提示する。解析の目的は、ITER計画で規定された核的要件をランチャー設計が満たすことができるという実証を提供することであった。この目的は、モンテカルロコードMCNPを用いた3次元中性子輸送計算に基づいて達成された。解析の過程において、ECRH物理ガイドラインに従ってミリ波伝播に必要な空き空間を維持しつつ、中性子およびガンマ線に対する適切な遮蔽構成が開発された。拡張性能フロントステアリングランチャー(EPL)の異なる遮蔽構成の変形例が、臨界位置における核応答関数の観点から比較された。ITER運転条件下で、中性子損傷(dpa)、核発熱、ヘリウム生成率、中性子およびガンマ線フラックスが計算された。放射線遮蔽基準が満たされ、想定される停止後線量率はITERの核設計限界値を下回ることが示された。

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iter高精度(タイトル一致)

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ITERElectron cyclotron heating
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