HL-2M装置磁场线圈安装的误差场计算  

Error field calculation on HL-2M tokamak

作　　者：孙爱萍[1] 陈谦[1] 彭晓东[1] 潘宇东[1] 张锦华[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》2010年第4期335-338,共4页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金资助项目(10875073)

摘　　要：用SURFMN和SURFMN_TFCOIL代码计算了由HL-2M装置磁场线圈安装误差产生的误差场。根据国外托克马克装置TF和PF线圈安装误差的取值范围,以及HL-2A装置安装的经验,计算选取的TF线圈和PF线圈最大位移范围为3～8mm,最大倾斜角度为0.05～0.1°。选取9组数据计算了误差场的概率密度分布和累计概率分布。结果发现:在TF和PF线圈安装误差取值范围内,随磁场线圈最大移位增大概率密度显著变平,误差场B3-mod e/BT的分布范围显著增大;磁场线圈的位移比倾斜对误差场的影响更大;当磁场线圈最大位移达到5mm时误差场大于2×10-4的概率都比较大,特别是线圈最大位移等于8mm时,误差场大于2×10-4的概率在60%以上。Error field caused by non-coaxiality among poloidal and to roidalfield coils on HL-2M tokamak is calculated with SURFMN and SURFMN_TFCOIL code.According to the coil installation error chosen by international tokamak and the installation experience of HL-2A tokamak,the maximum shift distance of poloidal-and toroidal-field coils on HL-2M tokamak is chosen 3～8mm,and the maximum tilt angle of that is 0.05～0.1 degree.The probability density and accumulative probability of error field are calculated with the maximum shif distance 3mm,5mm and 8mm respectively,and the maximum tilt angle 0.05,0.075 and 0.1 degree respectively The results show that:(1) the probability density distribution become flat and the range of error field B3-mode /BT is enlarged significantly with the increase of maximum shift distance of field coils;(2) the shift of poloidal-and toroidal-field coils influences error field more heavily than tilt does;(3) when the shift of poloidal-and toroidal-field coils reaches 5mm,especially 8mm,the error field is more possibly reach 2×10-4.

关 键 词：托克马克装置 磁场线圈 安装误差 误差场 数据计算 最大位移 概率密度分布 取值范围 HL-2A装置 倾斜角度 概率分布 分布范围 位移比 8mm 移位 经验 结果 代码 

分 类 号：O4[理学—物理]