M. Valovic, Spyridon Aleiferis, Peter Blatchford, A. Boboc, Mathias Brix, Pedro Carvalho, I. S. Carvalho, Josep Maria Fontdecaba Climent, D. Dunai, L. Frassinetti, L. Garzotti, Florian Koechl, Christopher G Lowry, E. de la Luna, C. Maggi, R. Bianchetti Morales, Silvana Nowak, cameron Olde, D. Réfy, F. Rimini, S. Silburn, Ž. Štancar, G. Tvalashvili, M. Vécsei
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引用次数: 0
摘要
为了模拟国际热核实验堆的情况，在 JET 上制作了带有外围高场侧燃料颗粒的氘-氚（D-T）等离子体基线方案。通过氚气体膨化和氘颗粒注入相结合的方式控制同位素混合比，使其达到 50%-50%的目标值。对控制单个颗粒燃料效率的多种因素进行了分析，并得出以下结论：（1）检测到颗粒触发 ELM 导致的颗粒损失，（2）质子漂移速度可能小于模拟预测值，（3）颗粒后颗粒损失受瞬态 ELMy 阶段控制。颗粒粒子通量与热通量的总体关系与之前在 AUG 和 JET 上进行的颗粒燃料实验相似。
Fuelling of deuterium-tritium plasma by peripheral pellets in JET experiments
A baseline scenario of deuterium-tritium (D-T) plasma with peripheral high field side fuelling pellets has been produced on JET in order to mimic the situation in ITER. The isotope mix ratio is controlled in order to target the value of 50%-50% by combination of tritium gas puffing and deuterium pellet injection. Multiple factors controlling the fuelling efficiency of individual pellets are analysed with following findings: (1) prompt particle losses due to pellet triggered ELMs are detected, (2) plasmoids drift velocity might be smaller than predicted by simulation, (3) post-pellet particle loss is controlled by transient ELMy phases. Overall pellet particle flux normalised to heat flux is similar to that in previous pellet fuelling experiments on AUG and JET.
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