Development and Application of a Medium Power, High Quality, Submillimeter Wave Gyrotron

中功率、高质量亚毫米波回旋管的研制与应用

基本信息

批准号：
04405004
负责人：
IDEHARA Toshitake
金额：
$ 14.72万
依托单位：
Fukui University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (A)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1994
项目状态：
已结题

项目摘要

1. Development of High Frequency Gyrotrons Using the Second and the Third Harmonic Operations(1) A demountable gyrtron using a 12 T superconducting magnet has been constructed and operated under the second and the third harmonic resonances. The maximum frequencies of 636 GHz and 444 GHz at the second and the third harmonic resonances, respectively. The output powers lie in the range from 100 to 700 W.The gyrotron is useful for plasma diagnostics and studies of materials.(2) A high frequency gyrotron consisting of a 17 T superconducting magnet and a tipped-off tube has been constructed and tested. The gyrotron has attained frequency tunabilities from 159 to 430 GHz at the fundamental operations and from 336 to 850 GHz at the second harmonic operations. The maximum frequency of 850 GHz is the new world record for high frequency operation of gyrotron.2. Amplitude and Frequency Modulations of Submillimeter Wave GyrotronsBoth modulations of gyrotrons are important for applications to wide fields as radiation sources. Our submillimeter wave gyrotrons have achieved both sinusoidal-wave and square-wave modulations in the frequency range from 1 kHz to 600 kHz. The gyrotrons also have achieved frequency step switchings between 257 GHz and 260 GHz (switching between two fundamental modes) and between 223 GHz and 444 GHz (switching between a fundamental mode and a second mode). This is the first experiment of frequency switching of gyrotron.We have applied our gyrotrons to submillimeter wave spectroscopy and studied on the following fields.3. Mode competitions and cooperations between the fundamental and the harmonic mode operations, 4. Quasi-optical devices applied for submillimeter wave gyrotrons, 5. Plasma scattering measurement using a gyrotron as a power source, 6. Millimeter wave ESR experiment using a gyrotron as a power source.

1。使用第二和第三个谐波操作（1）使用12 t超导磁体的可拆分旋转的高频回旋子开发，并在第二和第三个谐波共振下进行了操作。第二和第三个谐波共振分别为636 GHz和444 GHz的最大频率。输出功率在100到700 w的范围内。循环可用于等离子体诊断和材料研究。（2）高频陀螺仪由17 t超导磁体组成，已经构建和测试了倾斜的管子。。 Gyrotron在基本操作中达到了从159至430 GHz的频率可导性率，在第二次谐波操作中获得了336至850 GHz。 850 GHz的最大频率是Gyrotron.2的高频操作的新世界记录。陀螺仪的亚毫米波旋转调制的幅度和频率调制对于作为辐射源的宽场应用非常重要。我们的亚毫升波浪环在频率范围从1 kHz到600 kHz的频率范围内达到了正弦波和方波调制。 Gyrotron还达到了257 GHz至260 GHz（在两个基本模式之间切换）和223 GHz和444 GHz（在基本模式和第二个模式之间切换）之间的频率步骤开关。这是Gyrotron的频率转换的第一个实验。我们将陀螺素应用于亚毫米波光谱，并在以下字段上进行了研究。3。模式竞争和基本模式操作之间的模式竞争和合作，4。用于亚损波的准精子设备，使用陀螺仪作为电源，6。等离子散射测量作为电源，6。毫米毫米波ESR Wave实验，使用Gyrotron作为电源作为电源作为电源来源。