HL-2A装置偏滤器位形超声分子束注入深度观测  

Observations of SMBI penetration depth in the HL-2A tokamak with divertor configuration

作　　者：冯北滨[1] 姚良骅[1] 李伟[1] 陈程远[1] 冯震[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2008年第2期97-100,共4页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金资助项目(10475024)

摘　　要：用22道Hα辐射测量阵列观测了HL-2A装置偏滤器位形超声分子束的注入过程。观测结果表明:在HL-2A装置偏滤器位形下,当分子束注入气源压强大于1MPa时,Hα辐射沿径向分布存在两个峰值,其第二个Hα辐射峰值位于r/a^0.8附近,表明大部分氢粒子在等离子体边缘(SOL区域)即被离解或电离,但仍有部分氢粒子沉积在分界面内5cm。The penetration depth of supersonic molecule beam injection （SMBI） is observed by using a set of detector array, which is composed of 22-channel Ha detectors, in the HL-2A tokamak with divertor configuration. The results show that there are two Ha emission peaks in the radial direction when the gas backing pressure is more than IMPa, the second peak is localized at rla-0.8, which indicates that there are still some hydrogen particles penetrating into the separatrix over 5cm even though more particles are dissociated or ionized at the edge plasma （SOL） region.

关 键 词：超声分子束注入 托卡马克 偏滤器 Hα辐射 

分 类 号：O536[理学—等离子体物理] TL651[理学—物理]