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HL-2M装置5 MW中性束加热束线离子源放电室研制

魏会领 曹建勇 余珮炫 邹桂清 周红霞 杨宪福 周博文 罗怀宇 耿少飞

魏会领, 曹建勇, 余珮炫, 等. HL-2M装置5 MW中性束加热束线离子源放电室研制[J]. 强激光与粒子束, 2020, 32: 046001. doi: 10.11884/HPLPB202032.190275
引用本文: 魏会领, 曹建勇, 余珮炫, 等. HL-2M装置5 MW中性束加热束线离子源放电室研制[J]. 强激光与粒子束, 2020, 32: 046001. doi: 10.11884/HPLPB202032.190275
Wei Huiling, Cao Jianyong, Yu Peixuan, et al. Development of ion source discharge chamber for the 5 MW neutral beam heating line on HL-2M device[J]. High Power Laser and Particle Beams, 2020, 32: 046001. doi: 10.11884/HPLPB202032.190275
Citation: Wei Huiling, Cao Jianyong, Yu Peixuan, et al. Development of ion source discharge chamber for the 5 MW neutral beam heating line on HL-2M device[J]. High Power Laser and Particle Beams, 2020, 32: 046001. doi: 10.11884/HPLPB202032.190275

HL-2M装置5 MW中性束加热束线离子源放电室研制

doi: 10.11884/HPLPB202032.190275
基金项目: 国家自然科学基金项目(11405048);国际热核聚变实验堆计划专项(2011GB103000)
详细信息
    作者简介:

    魏会领(1982—),女,博士,副研究员,现主要从事磁约束核聚变中性束加热系统科研工作;weihuiling2233@163.com

  • 中图分类号: O532.26; O562.4

Development of ion source discharge chamber for the 5 MW neutral beam heating line on HL-2M device

  • 摘要: 为了给HL-2M装置建设一条5 MW中性束加热束线,开展了中性束加热用热阴极弧放电离子源放电室的研制。这条中性束束线包含4套80 kV/45 A/5 s离子源,放电室的设计指标为850 A/5 s。首先采用CST软件中的电磁工作室对特定几何结构的放电室会切磁场进行了模拟计算,得到了会切磁场分布,验证了会切磁场布局的合理性。针对放电室加工工艺和实验过程中局部拉弧等问题,对放电室结构进行了不断改进。放电室侧壁由40列会切磁体改为7圈环形磁体,阴极灯丝结构从灯丝板结构最终改为陶瓷可伐结构,并且在放电室和加速器之间增加了陶瓷屏蔽。在阴极板结构放电室和阴极陶瓷可伐结构放电室内都获得了正常的弧放电。最终定型的放电室采用周边7圈环形会切磁体和陶瓷可伐结构。在定型的放电室内达到了5 MW中性束束线离子源弧放电的指标。弧放电时间接近5 s,最大弧放电电流达到1000 A。
  • 图  1  周边40列磁体的离子源放电室

    Figure  1.  Ion source discharge chamber with 40 columns of magnets

    图  2  离子源放电室磁场分布

    Figure  2.  Magnetic field distribution of ion source discharge chamber

    图  3  不锈钢放电室腔体

    Figure  3.  Stainless steel discharge chamber

    图  4  非正常弧放电波形

    Figure  4.  Abnormal arc discharge waveforms

    图  5  放电室内局部拉弧引起的烧灼痕迹

    Figure  5.  Burning marks caused by local arcing in the discharge chamber

    图  6  安装于测试平台上的放电室

    Figure  6.  Discharge chamber mounted on the test platform

    图  7  典型的弧放电波形

    Figure  7.  Typical arc discharge waveforms

    图  8  HL-2M装置80 kV/45 A/5 s离子源放电室最终结构

    Figure  8.  Final structure of 80 kV/45 A/5 s ion source discharge chamber for HL-2M device

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    [13] 曹建勇, 魏会领, 刘鹤, 等. HL-2M装置中性束注入加热系统研制进展[J]. 强激光与粒子束, 2018, 30:106001. (Cao Jianyong, Wei Huiling, Liu He, et al. Latest progress of development of the neutral beam injection heating system on HL-2M Tokamak[J]. High Power Laser and Particle Beams, 2018, 30: 106001
    [14] 魏会领, 曹建勇. 一种离子源放电室内夹紧螺母灯丝支架的屏蔽结构: CN106935472B[P]. 2018-11-30.

    Wei Huiling, Cao Jianyong. Shielding structure for filament support adopting clamping nuts in ion source discharge chamber: CN106935472B[P]. 2018-11-30
    [15] 魏会领, 曹建勇. 一种离子源放电室阴极灯丝杆的连接和冷却结构: CN106935460B[P]. 2018-09-28.

    Wei Huiling, Cao Jianyong. Ion source discharge chamber cathode filament rod connection and cooling structure: CN106935460B[P]. 2018-09-28
    [16] 魏会领, 曹建勇. 一种离子源放电室与加速器之间的陶瓷屏蔽结构: CN106935471B[P]. 2018-11-30.

    Wei Huiling, Cao Jianyong. Ceramic shielding structure between ion source discharge chamber and accelerator: CN106935471B[P]. 2018-11-30
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出版历程
  • 收稿日期:  2019-07-24
  • 修回日期:  2019-12-17
  • 刊出日期:  2020-03-06

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