偏滤器物理设计与实验研究①.PDF

CNIC-01886 SIP-0186 偏滤器物理设计与实验研究① 严建成高庆弟严龙文王明旭邓柏权张斧 张年满冉红程发银唐益武陈小平 (核工业西南物理研究院，成都，610041) 摘要 应用 B2-code 模拟了偏滤器等离子体行为，优化了HL-2A 装置 偏滤器位形。研究了偏滤器刮削层中等离子体与器壁问过渡鞠层的 离子碰撞效应，模拟研究了利用LHCD 和 NBI 控制等离子体剖面分 布在 HL-2A 中建立准稳态的反磁剪切位形。HL-2A 装置首次实现 了下单零点的偏滤器位形运行，完成了偏滤器初步物理实验，截至 2004 年底，获得等离子体电流320 kA，等离子体存在时间1 580 ms , 环向磁场 2.2 To 开展了高功率密度聚变堆偏滤器靶板的设计研究， 特别是流动液态钮偏滤器靶板表面的物理过程的研究。探索性研究 了用 RF 有质动力势改善偏滤器排灰效率和减少箴投料量。对FEB- E 聚变堆偏滤器进行了优化设计o 用电子束模拟对碳基材料及鸽进 行了高热负荷冲击实验，完成了鸽/铜合金的热等静压焊接及热疲劳 试验研究。研究了氮在鸽中的滞留与热解吸行为o 关键词:偏滤器位形优化聚变堆热等静压焊接 ① 国家自然科学基金资助重点项目:No. Physics Design and Experimental Study of Tokamak DivertorCD (In Chinese) Y AN Jiancheng GAO Qingdi Y AN Longwen WANG Mingxu DENG Baiquan ZHANG Fu ZHANG Nianman RAN Hong CHENG Fayin TANG Yiwu CHEN Xiaoping (Southwestern Institute of Physics , Chengdu , 610041) ABSTRACT The divertor configuration of HL-2A tokamak is optimized , and the plasma performance in divertor is simulated with B2-code. The effects of collisionality on plasma-wall transition in the scrape-off layer of divertor are investigated , high performances of the divertor plasma in HL-2A are simulated , and a quasi- stationary RS operation mode is established with the plasma controlled by LHCD and NB I. HL-2A tokamak has been successfully operated in divertor configuration. The major parameters: plasma current I p = 320 kA , toroidal field B t = 2. 2 T , plasma discharger duration T d = 1 580 ms ware achieved at the end of 2004. The preliminary experimental researches of advanced diverter h