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Advanced neutron diagnostics for JET and ITER fusion experiments

L. Giacomelli, A. Hjalmarsson, H. Sjöstrand, W. Glasser, J. Källne, S. Conroy, G. Ericsson, M. Gatu Johnson, G. Gorini, H. Henriksson2005年被引用 32Nuclear FusionIF 3出版社

The diagnostics functions of neutron measurements as well as the roles played by neutron yield monitors, cameras and spectrometers are reviewed. The importance of recent developments in neutron emission spectroscopy (NES) diagnostics is emphasized. Results are presented from the NES diagnosis of the Joint European Torus (JET) plasmas performed with the magnetic proton recoil (MPR) spectrometer during the first deuterium tritium experiment of 1997 and the recent trace tritium experiment of 2003. The NES diagnostic capabilities at JET are presently being enhanced by an upgrade of the MPR (MPRu) and a new 2.5 MeV time-of-flight (TOF) neutron spectrometer (TOFOR). The principles of MPRu and TOFOR are described and illustrated with the diagnostic role they will play in the high performance fusion experiments in the forward programme of JET largely aimed at supporting the International Thermonuclear Experimental Reactor (ITER). The importance of the JET NES effort for ITER is discussed.

日本語訳

中性子測定の診断機能、ならびに中性子モニター、カメラ、分光器が果たす役割について概説する。近年における中性子放出分光(NES)診断の進展の重要性を強調する。1997年の最初の重水素・トリチウム実験および2003年の最近の微量トリチウム実験において、磁気陽子反跳(MPR)分光器を用いてJET(共同欧州トーラス)プラズマに対して実施されたNES診断の結果を示す。JETにおけるNES診断能力は、現在、MPRの改良(MPRu)と新しい2.5 MeV飛行時間型(TOF)中性子分光器(TOFOR)によって強化されつつある。MPRuとTOFORの原理を説明し、国際熱核融合実験炉(ITER)の支援を主目的とするJETの高性能核融合実験計画において、それらが果たす診断的役割とともに例示する。ITERに対するJETのNES活動の重要性について考察する。

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