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Nuclear Fusion and Plasma Physics ›› 2025, Vol. 45 ›› Issue (1): 34-38.DOI: 10.16568/j.0254-6086.202501006

• Nuclear Fusion Engineering • Previous Articles     Next Articles

Research of the 105GHz/1MW ECRH boron nitride ceramic window

WANG Chao, HUANG Mei, CHEN Gang-yu, CHEN Cheng   

  1. (Southwestern Institute of Physics, Chengdu 610041)
  • Received:2022-07-06 Revised:2024-08-14 Online:2025-03-15 Published:2025-03-15

氮化硼陶瓷105GHz/1MW微波透射窗的研究

王  超,黄  梅,陈罡宇,陈  程   

  1. (核工业西南物理研究院,成都 610041)
  • 作者简介:王超(1985-),男,四川自贡人,硕士,高级工程师,从事波加热技术研究。
  • 基金资助:
    中核集团重点研发(2022YQGJ001);西物创新(202001XWCXYD001)

Abstract:

Dielectric parameters of the 105GHz/1MW ECRH boron nitride (BN) ceramic window are measured by open cavity, and the impact of permittivity and mechanic tolerance on performance of the window are calculated. The temperature distribution after power deposition was obtained with finite element analysis, thereby the pulse duration for BN ceramic under 1MW condition was confirmed. The proper thickness of the BN ceramic for next welding work was chosen by low power test. 

Key words: Boron nitride, BN ceramic window, Permittivity

摘要:

利用开放腔法测量了105GHz/1MW ECRH系统氮化硼陶瓷微波透射窗的介电参数,研究了其相对介电常数的变化以及加工精度对窗片性能的影响。通过模拟仿真得到功率沉积后窗片温度的分布,确定在1MW功率下对氮化硼陶瓷应用的脉冲宽度。通过低功率测试获得了最佳的窗片厚度,为下一步焊接封装做好了准备。

关键词: 氮化硼, 氮化硼陶瓷窗口, 相对介电常数

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