Development of frequency tunable gyrotrons as high power far-infrared wave sources and their applications to far-infrared spectroscopy

高功率远红外波源频率可调陀螺仪的研制及其在远红外光谱中的应用

• 批准号: 12558045
• 负责人: IDEHARA Toshitaka
• 金额: $ 8.38万
• 依托单位: Fukui University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12558045/
• 关键词: Gyrotron; Submillimeter wave; Far-infrared range; High harmonic; Plasma scattering measurement; Submillimeter wave ESR; Permanent magnet; Frequency tunable; 高調波動作; 振幅変調; 周波数変調; 高安定化

(1) Development of submillimeter wave gyrotrons using a 17 T superconducting msgnet, whose wavelength is tunable down to 337 μm(2) Development of higher harmonic gyrotron with a 1 T permanent magnet. The 3 rd, the 4 th and the 5 th harmonic operations were realized successfully.(3) Frequency modulation of gyrotron output was achieved by modulation of beam electron energy, while amplitude modulation by modulation of velocity distribution function of beam electrons.(4) Frequency stabilization of gyrotron output was achieved by phase-lock control of beam electron energy, while amplitude stabilization by feed-back control of anode voltage of gun. The stabilities of frequency and amplitude were 3・10^<-10> and 10^<-3>, respectively.(5) Conversion of gyrotron output to Gaussian mode by a quasi-optical system and achievement of high efficiency transmission of the bi-Gaussian mode.(6) A plasma scattering measurement system with a gyrotron as a radiation source in a submillimeter wavelength range was designed and constructed. Its application to measurement of density fluctuation for CHS and LHD in National Institute for Fusion Science and a tokamak device NSTX in Princeton University was researched.(7) A high power ESR device with a gyrotron as a radiation source was constructed and already applied to ESR study in submillimeter wavelength range.

（1）使用17 t超导的MSGNET开发亚毫升波陀螺素，其波长可调节至337μm（2）用1 t永久磁体开发较高的谐波旋转子。第三，第四和第5个谐波操作成功实现了。（3）通过调节梁电子能量来实现循环子输出的频率调节，而梁电子能量通过调节来调节束电子电子的速度分布功能。（4）通过对束的射击控制频率稳定的频率稳定性，而对轴的稳定性则可以通过对电压控制的射击控制来实现。频率和放大器的系统分别为3・10^<-10>和10^<-3>。（5）通过准光学系统将陀螺仪输出转换为高斯模式，并实现Bi-Gaussian模式的高效率传输。（6）血浆散射测量系统具有Gyrotron的构造量，该系统是构造量及其构造量的构造量表。研究了其应用于美国国家融合科学研究所的CHS和LHD密度波动的应用，以及普林斯顿大学的Tokamak设备NSTX的应用。（7）构建了具有旋转源的高功率ESR设备作为辐射源，并已经在超耗一波长范围内应用于ESR研究。

项目成果

T.Idehara: "Development of high power, frequency tunable, submillimeter wave sources-Gyrotron FU Series"Proc. of 13th Int.Conf. on High Power Particle Beams. 50-53 (2001)

T.Idehara：“高功率、频率可调、亚毫米波源的开发-回旋管 FU 系列”Proc。

I.Ogawa: "Design of a quasi-optical system to convert TE_<On> mode outputs of a gyrotron into Gaussian beams"Int.J.Infrared and Millimeter Waves. 21・4. 577-592 (2000)

I.Okawa：“将回旋管的 TE_<On> 模式输出转换为高斯光束的准光学系统的设计”Int.J.Infrared and Millimeter Waves 21・4 (2000)。

S.Mitsudo: "High power, frequency tunable, submillimeter wave ESR device using a gyrotron as a radiation source"Int.J.Infrared and Millimeter Waves. 21・8. 661-676 (2000)

S.Mitsudo：“使用回旋管作为辐射源的高功率、频率可调的亚毫米波 ESR 装置”Int.J.Infrared and Millimeter Waves 21・8 (2000)。

M.Glyavin: "Numerical analysis of weakly relativistic large orbit gyrotron with permanent magnet system"Int.J.Infrared and Millimeter Waves. 21・8. 1211-1221 (2000)

M.Glyavin：“带有永磁体系统的弱相对论大轨道回旋管的数值分析” Int.J.Infrared and Millimeter Waves 21・8（2000）。

T.Idehara 他: "Development of frequency tunable gyrotrons in millimeter to submillimeter wave range for plasma diagnostics"Proc. Of 10th Int. Toki Conf. on Plasma Phys. And Controlled Fusion (ITC-10)(J. Plasma Fusion Res, SERIES Vol.3). 407-410 (2000)

T. Idehara 等人：“用于等离子体诊断的毫米波至亚毫米波范围的频率可调陀螺仪”Proc。第 10 届 Toki Conf 等离子体物理和受控聚变 (ITC-10)(J. Plasma Fusion Res) ，系列第 3 卷）407-410 (2000)。