EAST中加热功率对弹丸注入加料效率的影响  

Impact of heating power on pellet fueling efficiency on EAST

作　　者：李孟曼妮 侯吉磊 左桂忠 陈跃 李成龙 刘建文[1,2] 叶凯萱 黄佳 胡建生 LI-MENG Man-ni;HOU Ji-lei;ZUO Gui-zhong;CHEN Yue;LI Cheng-long;LIU Jian-wen;YE Kai-xuan;HUANG Jia;HU Jian-sheng(Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031;University of Science and Technology of China,Hefei 230026)

机构地区：[1]中国科学院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《核聚变与等离子体物理》2022年第4期426-432,共7页Nuclear Fusion and Plasma Physics

基　　金：国家重点研发计划项目(2017YFA0402500,2017YFE0301100);国家自然科学基金(11625524,11775261,11905148,11905254,11905138);中国科学院合肥大科学中心高端用户培育基金(2020HSC-UE010);合肥物质研究院院长基金青年火花项目(YZJJ2019QN9)。

摘　　要：介绍了EAST装置气动加速氘弹丸注入加料系统和不同加热功率条件下弹丸加料效率的实验结果。当等离子体加热功率从1MW逐渐增加到10MW时,弹丸加料效率从60%降低到10%。加热功率的升高导致弹丸粒子的沉积深度λ_(p)/a降低达50%左右,从而导致大量的弹丸粒子沉积在等离子体边界。This paper introduces the system of pneumatic accelerated deuterium pellet injection and presents the experimental results of fueling efficiency performed by this system on EAST. With the increase of additional heating power from 1MW to 10MW, the fueling efficiency of pellet gradually decreases from 60% to 10% and pellet particles mainly deposit at the plasma edge region due to about 50% reduction of the penetration depth of pellet.

关 键 词：EAST装置 弹丸注入 加料效率 

分 类 号：TL624[核科学技术—核技术及应用]