等离子体诊断用亚毫米波源回旋管FU系列的研制
Development of submillimeter wave source Gyrotron FU series for plasma diagnostics
摘要：
福井大学远红外区域开发研究中心（FIR FU）开发的回旋管是高频、中等功率回旋管，作为毫米波至亚毫米波辐射源，应用于包括等离子体诊断在内的新远红外技术。我们已经开发了Gyrotron FU系列，由8个回旋管组成。该系列回旋管实现了宽范围（38 ~ 889 GHz）的频率调谐。最高频率对应于337微米的波长。这是目前回旋管高频工作的最高记录。最近，我们研制了一种高次谐波电子束回旋管和一种脉冲磁场太赫兹回旋管。本文介绍了FU系列回旋管的现状。
英文摘要：
Our gyrotrons developed in Fukui University, Research Center for Development of Far Infrared Region (FIR FU) are high frequency, medium power gyrotrons as millimeter to submillimeter wave radiation sources for application to new far-infrared technologies including plasma diagnostics. We have already developed Gyrotron FU Series which consists of 8 gyrotrons. The gyrotron series has achieved frequency tuneability in wide range (from 38 GHz to 889 GHz). The highest frequency is corresponding to a wavelength of 337 micrometers. This is a current record for high frequency operation of gyrotron. Recently, we have developed a high harmonic gyrotron with an axis-encircling electron beam and a THz gyrotron with a pulse magnet. In this presentation, the present status of Gyrotron FU Series is described.
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