巻号一覧
後続誌
22 巻, 2 号
選択された号の論文の7件中1～7を表示しています
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有沢 孝, 成瀬 雄二1980 年 22 巻 2 号 p. 79-84
発行日: 1980/02/29
公開日: 2009/03/31
ジャーナル フリーレーザー法によるウラン濃縮は,分離係数が大きくエネルギー消費が少ないという特長を有しており, 1974年ローレンスリバモア研究所における基礎実験の成功により-躍注目されるようになった。
本稿では,本法の特徴ならびに原料供給,選択励起,分離・回収の各工程の原理と問題点を原料形態の違いに基づいて概観し,次いで濃縮プラントがどのように構成されるかを紹介する。抄録全体を表示PDF形式でダウンロード (2494K) -
池邊 幸正, 下 道国1980 年 22 巻 2 号 p. 85-91
発行日: 1980/02/29
公開日: 2009/03/31
ジャーナル フリー大気中の222Rnとその娘核種は,肺線量への寄与,環境γ線のレベル変動,放射能モニタリングへの影響など,保健物理とのかかわりが深い。本稿では222Rnの短寿命娘核種の性状と挙動(free成分の拡散係数や電気的移動度,エアロゾルへの付着などの挙動, f値,放射性エアロゾルの形成と粒度分布,付着理論,放射平衡など)について解説する。抄録全体を表示PDF形式でダウンロード (527K) -
民間の施設川田 俊行, 広瀬 保男, 村上 徹1980 年 22 巻 2 号 p. 92-100
発行日: 1980/02/29
公開日: 2009/03/31
ジャーナル フリーMitsubishi Heavy Industries, Ltd. (MHI) designed and constructed a new β-γ hot laboratory in Tokai-mura, Ibaraki-ken in 1972 for post-irradiation examination of structural material from operating PWR plants. There are one concrete cell (max. capacity of 100 Ci, 60Co), seven lead (partially steel) cells and several supporting laboratories. MHI hot laboratory has been particularly equipped for surveillance test on reactor pressure vessel, however, wide variety of activities including radiochemical experiments and charcoal filter testing are available.
Nippon Nuclear Fuel Development Co., Ltd. (NFD) designed and constructed a new β-γ hot laboratory in Oarai-machi, Ibaraki-ken in 1976. There are two pools, seven concrete cells (max. capacity of 106Ci, 1 MeV γ-source), three steel cells, an isolation area and several supporting laboratories. Special attention was paid to the NFD hot laboratory having the capability to load and handle a full BWR fuel assembly. The laboratory has been equipped with many special instruments including a spent fuel shipping cask. After careful preparatory work, two BWR fuel assemblies were accepted in 1979 and being examined well as expected.抄録全体を表示PDF形式でダウンロード (3208K) -
武田 博之, 大場 健二, 小林 泉, 岡島 弘之, 杉山 栄, 加藤 洋明1980 年 22 巻 2 号 p. 108-110
発行日: 1980/02/29
公開日: 2009/03/31
ジャーナル フリーPDF形式でダウンロード (4424K) -
使用二相流基礎方程式の検証計算安達 公道1980 年 22 巻 2 号 p. 111-120
発行日: 1980/02/29
公開日: 2009/03/31
ジャーナル フリーTo verify applicability of the fundamental equations of steady two-phase flow including equations of motion based on unit flowing weight and based on unit existing weight, they are tried to apply to (1) two-phase critical discharge flow without phase change, and (2) subcritical horizontal two-phase flow with and without phase change.
The results are very satisfactory, i.e. adequacy and wide applicability of the author's fundamental equations are confirmed by them and by the similar results on one-component critical two-phase discharge flow reported in the reports of the present series.抄録全体を表示PDF形式でダウンロード (2330K) -
液体金属介在法佐野川 好母, 大内 光男, 菱田 誠1980 年 22 巻 2 号 p. 121-128
発行日: 1980/02/29
公開日: 2009/03/31
ジャーナル フリーA multi-purpose high-temperature gas-cooled reactor, excluding a power generation, is being designed to be operated as a heat source of the reducing gas which is applied to a direct steel-making process.
The protection of hydrogen permeation through the heat exchanger tubes of the high-temperature gas-cooled reactor into a primary coolant is one of the most severe problems. Also in a thermonuclear fusion reactor the protection of tritium diffusion is considered to be essential from the standpoint of environmental contamination, because tritium has radioactivity.
In the 1st report, a “liquid-metal-inbetween” method-hydrogen permeation is reduced by degassing through a palladium foil which is installed in a liquid metal region inbetween two metallic walls -is proposed, and the experiment verified the possibility of this idea. Moreover, it is shown that the reducing rate of hydrogen permeation can be lowered to any amount, if the area of palladium foil is large enough.
In addition, the necessary development or technological problems when applied to an actual heat exchanger are also described.抄録全体を表示PDF形式でダウンロード (571K) -
1980 年 22 巻 2 号 p. 129
発行日: 1980/02/29
公開日: 2009/03/31
ジャーナル フリーPDF形式でダウンロード (134K)
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