太赫兹回旋管蓝宝石输能窗的设计及实验
Design and experimental research of a terahertz-gyrotron output window with sapphire disc
张亦弛 1高东硕 1曾旭 1李鹍 1郝文腾 1李博阳 1冯进军1
作者信息
- 1. 北京真空电子技术研究所 微波电真空器件国家级重点实验室,北京 100015
- 折叠
摘要
针对170 GHz兆瓦级回旋管短脉冲实验对蓝宝石输能窗的实际要求,分析了蓝宝石窗传输高斯波束的反射和吸收特性,优化设计了低反射、低损耗蓝宝石输能窗的工程方案.对研制的蓝宝石窗部件进行微波冷测,驻波比(VSWR)小于1.1,验证了蓝宝石窗的低反射特性;计算结果表明该结构的最大输出平均功率阈值为590 W.对使用该蓝宝石窗研制的170 GHz回旋管进行测试,验证了理论计算的功率阈值,为大功率回旋管蓝宝石输能窗的实际应用提供了依据.
Abstract
To satisfy the application requirements of sapphire output window for the 170 GHz megawatt-class gyrotron short-pulsed experiment,by calculating the characteristic of reflection and absorbing of Gaussian beam transmitted through sapphire window,a sapphire window unit is designed with low reflection and low loss power.The low reflectance is verified by vector network analyzer that the Voltage Standing Wave Ratio(VSWR)<1.1.The maximum output average power threshold of the sapphire window has been calculated approximately to be 590 W by analyzing the damage mechanism.The 170 GHz gyrotron employing sapphire window is fabricated,and the power threshold calculated theoretically is verified,providing a reliable theoretical basis for the application of sapphire output window used in high power gyrotron.
关键词
170/GHz/回旋管/蓝宝石/输能窗/高斯波束Key words
170 GHz/gyrotron/sapphire/output window/Gaussian beam引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据