Having the capability of generating superior output power with good spatial pattern at sub-terahertz (THz) region compared to other sources, gyrotron is well suited for nondestructive inspections. The author developed a compact (0.5 × 0.84 × 1.6 m3) gyrotron capable of producing 0.2 THz (TE4,2 mode) and 0.4 THz (TE9,3 mode). With reasonable spatial property of the 0.2-THz beam and its long-term stability at high power, nondestructive inspections are successfully demonstrated, especially for soft foreign bodies hidden in food which is hardly detectable with X-ray, in real-time.

中文翻译：

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紧凑型亚太赫兹回旋管在无损检测中的应用


与其他光源相比，回旋管能够在太赫兹 (THz) 区域产生卓越的输出功率和良好的空间模式，非常适合无损检测。作者开发了一种紧凑型（0.5 × 0.84 × 1.6 m3）回旋管，能够产生 0.2 THz（TE4,2 模式）和 0.4 THz（TE9,3 模式）。凭借0.2太赫兹光束合理的空间特性及其在高功率下的长期稳定性，成功地实现了无损检测，特别是对于隐藏在食品中的软质异物，这些异物很难用X射线实时检测。