M. Yu. Glyavin, G. G. Denisov, I. V. Zheleznov, I. V. Zotova, A. M. Malkin, A. S. Sergeev
{"title":"基于等离子体应用大功率陀螺仪的第五次回旋谐波陀螺倍增器","authors":"M. Yu. Glyavin, G. G. Denisov, I. V. Zheleznov, I. V. Zotova, A. M. Malkin, A. S. Sergeev","doi":"10.1007/s11141-024-10309-8","DOIUrl":null,"url":null,"abstract":"<p>We study theoretically the possibility of creating sources of terahertz radiation of high (up to several watts) power based on excitation of the fifth cyclotron harmonic in the frequency multiplication regime in high-power gyrotrons intended for plasma applications. It was previously shown that effective excitation of isolated (<i>s</i> = 4n + 1, n = 1, 2, 3, . . . ) cyclotron harmonics in gyrotrons is due to the specific property of the eigenmodes of cylindrical waveguides, according to which the conditions for simultaneous resonance of an electron beam with two TE modes having asymptotically multiple cutoff frequencies can be fulfilled. For the fifth cyclotron harmonic, this method was tested in experiments with a low-frequency kilowatt power level gyrotron. The use of gyrotrons for plasma applications will significantly increase the power and frequency of radiation based on the observed effect. To suppress spurious oscillation at the main cyclotron resonance, which occurs in the region of optimal magnetic fields for the multiplication effect, it is proposed to use frequency locking of the gyrotron by an external signal. Simulations performed in this work based on an averaged self-consistent gyrotron model shows the possibility of oscillation in the described radiation scheme with a power of several watts at a frequency of 1.25 THz with radiation at the fifth harmonic of the gyrofrequency in a recently developed sub-MW/0.25 THz gyrotron with TE<sub>19, 8</sub> operating mode.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"66 7-8","pages":"479 - 488"},"PeriodicalIF":0.8000,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Gyromultipliers of the Fifth Cyclotron Harmonic Based on High-Power Gyrotrons for Plasma Applications\",\"authors\":\"M. Yu. Glyavin, G. G. Denisov, I. V. Zheleznov, I. V. Zotova, A. M. Malkin, A. S. Sergeev\",\"doi\":\"10.1007/s11141-024-10309-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We study theoretically the possibility of creating sources of terahertz radiation of high (up to several watts) power based on excitation of the fifth cyclotron harmonic in the frequency multiplication regime in high-power gyrotrons intended for plasma applications. It was previously shown that effective excitation of isolated (<i>s</i> = 4n + 1, n = 1, 2, 3, . . . ) cyclotron harmonics in gyrotrons is due to the specific property of the eigenmodes of cylindrical waveguides, according to which the conditions for simultaneous resonance of an electron beam with two TE modes having asymptotically multiple cutoff frequencies can be fulfilled. For the fifth cyclotron harmonic, this method was tested in experiments with a low-frequency kilowatt power level gyrotron. The use of gyrotrons for plasma applications will significantly increase the power and frequency of radiation based on the observed effect. To suppress spurious oscillation at the main cyclotron resonance, which occurs in the region of optimal magnetic fields for the multiplication effect, it is proposed to use frequency locking of the gyrotron by an external signal. Simulations performed in this work based on an averaged self-consistent gyrotron model shows the possibility of oscillation in the described radiation scheme with a power of several watts at a frequency of 1.25 THz with radiation at the fifth harmonic of the gyrofrequency in a recently developed sub-MW/0.25 THz gyrotron with TE<sub>19, 8</sub> operating mode.</p>\",\"PeriodicalId\":748,\"journal\":{\"name\":\"Radiophysics and Quantum Electronics\",\"volume\":\"66 7-8\",\"pages\":\"479 - 488\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2024-05-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radiophysics and Quantum Electronics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11141-024-10309-8\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiophysics and Quantum Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11141-024-10309-8","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Gyromultipliers of the Fifth Cyclotron Harmonic Based on High-Power Gyrotrons for Plasma Applications
We study theoretically the possibility of creating sources of terahertz radiation of high (up to several watts) power based on excitation of the fifth cyclotron harmonic in the frequency multiplication regime in high-power gyrotrons intended for plasma applications. It was previously shown that effective excitation of isolated (s = 4n + 1, n = 1, 2, 3, . . . ) cyclotron harmonics in gyrotrons is due to the specific property of the eigenmodes of cylindrical waveguides, according to which the conditions for simultaneous resonance of an electron beam with two TE modes having asymptotically multiple cutoff frequencies can be fulfilled. For the fifth cyclotron harmonic, this method was tested in experiments with a low-frequency kilowatt power level gyrotron. The use of gyrotrons for plasma applications will significantly increase the power and frequency of radiation based on the observed effect. To suppress spurious oscillation at the main cyclotron resonance, which occurs in the region of optimal magnetic fields for the multiplication effect, it is proposed to use frequency locking of the gyrotron by an external signal. Simulations performed in this work based on an averaged self-consistent gyrotron model shows the possibility of oscillation in the described radiation scheme with a power of several watts at a frequency of 1.25 THz with radiation at the fifth harmonic of the gyrofrequency in a recently developed sub-MW/0.25 THz gyrotron with TE19, 8 operating mode.
期刊介绍:
Radiophysics and Quantum Electronics contains the most recent and best Russian research on topics such as:
Radio astronomy;
Plasma astrophysics;
Ionospheric, atmospheric and oceanic physics;
Radiowave propagation;
Quantum radiophysics;
Pphysics of oscillations and waves;
Physics of plasmas;
Statistical radiophysics;
Electrodynamics;
Vacuum and plasma electronics;
Acoustics;
Solid-state electronics.
Radiophysics and Quantum Electronics is a translation of the Russian journal Izvestiya VUZ. Radiofizika, published by the Radiophysical Research Institute and N.I. Lobachevsky State University at Nizhnii Novgorod, Russia. The Russian volume-year is published in English beginning in April.
All articles are peer-reviewed.