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貴重なウラン資源の有効利用; 伝えたい「閉じたサイクル」の実力

Effective use of uranium resources; Communicate the power of a closed cycle

佐賀山 豊 ; 澤田 哲生*; 田中 治邦*

Sagayama, Yutaka; Sawada, Tetsuo*; Tanaka, Harukuni*

核燃料サイクルの必要性,将来性,課題(コスト,軽水炉サイクルの是非など)などを議論する。カーボンニュートラルの潮流により、今後、各国で原子力(軽水炉)発電所が建設ラッシュを迎える。そのため、天然ウランの価格高騰が予想され、高速炉サイクル開発の必要性が増している。もんじゅまでの開発で蓄積してきたわが国の産業界や原子力機構が保有している、高速炉の設計・建設・運転・保守などの技術を散逸させず、高い安全性と経済性を兼ね備えた高速炉の実用化概念を世の中に提示し、速やかに実現させるべく、開発を着実に進めることが肝要。

Discussing the necessity of the nuclear fuel cycle, its future, and issues (costs, pros and cons of the LWR cycle, etc.). The trend toward carbon neutrality will lead to a rush to build nuclear (light water reactor) power plants in many countries. As a result, the price of natural uranium is expected to skyrocket, increasing the need for fast reactor cycle development. It is essential to present to the world the concept of commercialization of fast reactors that combine high safety and economic efficiency, and to proceed with development steadily in order to realize it promptly, without dissipating the technologies for design, construction, operation, and maintenance of fast reactors that Japanese industry and JAEA have accumulated through the development of MONJU and other projects.

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