Fusion reactor shield optimization in terms of personnel access.
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概要
- 論文の詳細を見る
The shield composition of a D-T burning fusion reactor has been optimized to minimize the shutdown dose rate outside the shield. A method of reducing the shutdown dose from a stainless steel structure is devised. First of all the 14 MeV neutron flux must be at-tenuated to reduce the products of the (<I>n, p</I>) reactions such as <SUP>58</SUP>Co and <SUP>54</SUP>Mn. Secondly low energy neutrons penetrating through the shield must be decreased to reduce troublesome (<I>n, γ</I>) reaction products such as <SUP>59</SUP>Fe and <SUP>51</SUP>Cr. As the result the criterion of 2.5 mrem/h one day after shutdown outside the shield is shown to be almost satisfied with 1.3 m thick non breeding blanket/shield, and with 1.5 m thick breeding blanket/shield.
- 一般社団法人 日本原子力学会の論文
著者
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SEKI Yasushi
Japan Atomic Energy Research Institute
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IIDA Hiromasa
Japan Atomic Energy Research Institute
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KAWASAKI Hiromitsu
Century Research Center Corp.
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