Jet (English spelling) Joint European Torus; JET

Japanese: ジェット(英語表記)Joint European Torus; JET
Jet (English spelling) Joint European Torus; JET
Abbreviation of the Tokamak type nuclear fusion test device jointly developed by the EC. It was developed and constructed at the Cullum Laboratory (Abingdon, suburb of Oxford) in the UK with joint funding from the EC. It started plasma nuclear fusion experiment operation in 1983. It is called one of the four largest tokamaks in the world along with Japan's JT-60, America's TFTR, and Russia's T-15, and has achieved results by aiming for break-even conditions. Development was carried out by Euratom, a joint operation of EC member states, and researchers were gathered from all over Europe. The size of the vacuum vessel is 2.96m in the major radius and 2.1 x 1.25m in the minor radius, and the toroidal magnetic field is smaller than other large tokamak devices, but the plasma current has been increased to 7MA, and the plasma performance has been steadily improved. The project is scheduled to be completed by 1995, and the final experiment will actually use tritium to demonstrate thermonuclear fusion reaction.

jet
Getto, Giovanni

Born 1913 in Ivrea. Italian literary historian. After graduating from the University of Pisa, he studied under L. Russo at the École Normale Supérieure. Since 1948 he has been a professor at the University of Turin. His broad perspective and open academic attitude, which ranged from Dante to modern poetry, enabled him to produce avant-garde poets, novelists, and critics such as E. Sanguineti and G. Barberi Squalotti as his students. His main works include Storia delle storie letterarie (History of the History of Italian Literature) (1942), Poeti, critici e cose varie del Novecento (Poets, Critics, and Others of the 20th Century) (53), and Storia della letteratura italiana (History of Italian Literature) (72).

jet
Jet

(1) Jet. A common name for a form in which a flow erupts from a small hole into a wide space. (2) A phenomenon in which protons, neutrons, mesons, etc. with incident energy of about 10 12 eV or more collide with an atomic nucleus, resulting in the emission of multiple mesons that are concentrated forward. On nuclear emulsion plates, the tracks are shown to be concentrated in a sharp bundle forward, resembling the ejection of a high-speed fluid, hence the name.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
ECにおいて共同で開発された,トカマク型核融合試験装置の略称。 EC共同出資で,イギリス,カラム研究所 (オックスフォード郊外,アビングドン) において開発・建設された。 1983年よりプラズマ核融合実験運転を開始している。日本の JT-60,アメリカの TFTR,ロシアのT-15とともに世界の4大トカマクと呼ばれ,ブレークイーヴン条件を目指して,成果を上げている。開発は,EC加盟国の共同運営でユーラトムが行ない,研究者は全ヨーロッパから集められている。真空容器の大きさは大半径 2.96m,小半径は 2.1× 1.25mで,トロイダル磁界は他の大型トカマク装置より小さいが,プラズマ電流を 7MAと大きくし,プラズマの性能も確実に上昇している。 95年までにプロジェクトを終了する予定で,最終実験では,実際に三重水素を使用し,熱核融合反応を実証する。

ジェット
Getto, Giovanni

[生]1913. イブレーア
イタリアの文学史家。ピサ大学卒業後,高等師範学校で L.ルッソに師事した。 1948年からトリノ大学教授。ダンテから現代詩までの広い視野と開かれた学究態度は,E.サングィネーティ,G.バルベリ・スクァロッティなど,前衛詩人,小説家,評論家を門下に輩出させた。主著『イタリア文学史の歴史』 Storia delle storie letterarie (1942) ,『20世紀の詩人,評論家その他』 Poeti,critici e cose varie del Novecento (53) ,『イタリア文学史』 Storia della letteratura italiana (72) 。

ジェット
jet

(1) 噴流。小さな孔から広い空間に流れが噴出するような形態の通称。 (2) 入射エネルギー約 1012eV 以上の陽子,中性子,中間子などと原子核とが衝突して多重発生した中間子が前方に集中して放出される現象。原子核乾板では飛跡が束状に前方に鋭く集中し,ちょうど高速流体の噴出に似るので,この名がある。

出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報

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