HL-2A强场侧弹丸注入工程设计  

Engineering Design of High-Field-Side Pellet Injection in HL-2A Tokomak

作　　者：徐红兵 朱根良 王明建 刘德权 

机构地区：[1]核工业西南物理研究院,成都610225

出　　处：《真空科学与技术学报》2013年第5期449-453,共5页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然基金资助项目(11275060);磁约束聚变物理前沿问题研究;低频剪切流与湍流相互作用实验研究(No.2013GB112008)

摘　　要：为了获得更高的弹丸加料效率,在HL-2A装置上开展了强场侧弹丸注入。本文主要介绍了一种新的注入方式—强场侧弹丸注入,详细介绍了强场侧弹丸注入的工程设计,同时也进行了弹丸在导管中的数值模拟计算,最后给出了强场侧弹丸注入初步实验结果。A novel technique, high-field-side（HFS）pellet injection in HL-2A tokomak, was developed via engineer- ing design, numerical simulation, and experimental test to significantly increase the plasma density and the fueling effi- ciency. The main considerations of the engineering design centered on the introduction of the HFS pellet injection to the existing vacuum system dedicated to HL-2A tokomak with low-field-side pellet injection only. A simple selector, capable of easily switching the high and low-field-side pellet injection modes, was designed, fabricated, and installed in the second diffusion chamber. The preliminary results show that the newly-developed HFS pellet injection method considerably im- proved the fueling efaqciency. For example, the maximum increase of electron density around the plasma center line, was found to be up to 1.0× 10^19 m3. The HFS pellet injection conditions, including the injection frequency and velocity, struc- ture of the HFS guide tube, etc, remained to be evaluated and optimized.

关 键 词：加料效率 弹丸 强场侧注入 

分 类 号：TL629.1[核科学技术—核技术及应用]