HL-1M装置高气压超声分子束加料效果  

Effects of fuelling by using high-pressure supersonic molecular beam in the HL-1M tokamak

作　　者：姚良骅[1] 冯北滨[1] 冯震[1] 董贾福[1] 郦文忠[1] 徐德明[1] 洪文玉[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《物理学报》2002年第3期596-602,共7页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :19775 0 11和 10 0 75 0 16 )资助的课题~~

摘　　要：超声分子束注入作为一种新的托卡马克加料方法 ,已成功地开发和应用于环流器新一号 (HL 1M)和超导托卡马克HT 7.近期开展的高气压超声分子束注入实验 ,在束流中发现了团簇流 ,其注入等离子体深度超过 17cm .电子密度上升率接近于小型冰弹丸加料 .多脉冲超声分子束注入形成电子密度阶梯形上升 ,类似于多弹丸加料效果 ,电子温度剖面呈中空分布 .描述了在HL 1M装置同一次欧姆放电等离子体中超声分子束与冰弹丸加料效果的实验比较 .Supersonic molecular beam (SMB), as a new fuelling method, has been successfully developed and used in HL-1M tokamak and HT-7 superconducting tokamak. The hydrogen clusters have been found in the beam produced by high working-gas pressure in recent experiments. With a penetration depth of hydrogen particles greater than 17 cm, the rate of increase of electron density for SMB injection,d e/dt, approaches that of the small ice pellet injection. The plasma density increases step by step after multi-pulse SMB injection, just as multi-pellet fuelling. Comparison of fuelling effects was made between SMB and ice pellet injection on the same shot of ohmic discharge in HL-1M.

关 键 词：高气压超声分子束注入 托卡马克 闭簇 HL-1M装置 加料方法 

分 类 号：TL631.24[核科学技术—核技术及应用]