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Comments on the article `Enhanced carbon influx into TFTR supershots'

D.H. McNeill1997年Nuclear FusionIF 3出版社

Temperature thresholds for enhanced impurity production at carbon walls have been measured in TFTR (1650 ± 150 degrees C) and JET (1850 degrees C) and calculated (1900 degrees C). Precise knowledge of these thresholds is important not only for impurity control in a reactor but also for finding causal relationships among the changes in various parameters (line and continuum emission, radial distributions of densities and temperatures, confinement times, neutron yield and energy content) that occur somewhat simultaneously with a decline in discharge quality that sets in after auxiliary heating has been maintained for some time.

日本語訳

カーボン壁における不純物生成の増加に対する温度閾値は、TFTR(1650±150℃)およびJET(1850℃)において測定され、また計算(1900℃)によって求められている。これらの閾値の正確な把握は、炉心における不純物制御にとって重要であるだけでなく、種々のパラメータ(線スペクトルおよび連続スペクトル放射、密度と温度の動径分布、閉じ込め時間、中性子発生量、エネルギー収支)間の因果関係を解明する上でも重要である。これらのパラメータの変化は、補助加熱がある程度の時間継続した後に生じる放電品質の低下とほぼ同時に観測される。

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