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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 朱國瑞 | |
| dc.contributor.author | Yu-Nung Lin | en |
| dc.contributor.author | 林語儂 | zh_TW |
| dc.date.accessioned | 2021-06-08T02:08:58Z | - |
| dc.date.copyright | 2016-03-08 | |
| dc.date.issued | 2016 | |
| dc.date.submitted | 2016-01-29 | |
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[2] M. Skolnik, IEEE Trans. Microwave Theory Tech. 50, 625–632. (2002) [3] Y. V. Bykov, and V. E. Semenov, in Applications of High Power Microwaves, edited by A. V. Gaponov-Grekhov and V. L. Granatstein (Artech House, Norwood, MA), 319. (1994) [4] K. R. Chu, Rev. Mod. Phys. 76, 489. (2004) [5] Slater, J. C., Microwave Electronics (Van Nostrand, Princeton, NJ). (1950) [6] Gewartowski, J. W., and H. A. Watson, Principles of Electron Tubes (Van Nostrand, Princeton, NJ). (1965) [7] K. R. Chu, Lecture Note for Nonlinear Formulation for gyro-TWT and CARM Amplifier. [8] S. H. Kao, C. C. Chiu, K. F. Pao, and K. R. Chu, Phys. Rev. Lett. 107, 135101. (2011) [9] S. H. Kao, C. C. Chiu, and K. R. Chu, Phys. Plasmas 19, 023112. (2012) [10] G. D. Li, S. H. Kao, P. C. Chang, and K. R. Chu, Phys. Plasmas 22, 043109. (2015) [11] M. Thumm, State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Up- date 2014, Forschungcentrum Karlsruhe, Germany. (2015) [12] D. B. McDermott, N. C. Luhmann Jr., A. Kupiszewski, and H. R. Jory, Phys. Fluids, vol. 26, no. 7, pp. 1936–1941. (1983) [13] V. L. Bratman, Yu. K. Kalynov, and V. N. Manuilov, Phys. Rev. Lett. 102, 245101. (2009) [14] McDERMOTI, D. B., LUHMANN, N. C; JR, FURUNO, D. S., KUPISZEWSKI, A., and JORY, H. R., International Journal of Millimeter Waves, 4, 639-664. (1983) [15] Vladimir L. Bratman, Alexei E. Fedotov, Yury K. Kalynov, Vladimir N. Manuilov, Mikhail M. Ofitserov, Sergei V. Samsonov, and Andrey V. Savilov, IEEE Trans. Plasma Sci., vo1.27, pp. 456-461. (1999) [16] Vlasov, S.N., Zhislin, G.M., Orlova, I.M., Petelin, M.I., Rogacheva, G.G., Radio Phys. Quantum Electron. 12, 972-978. (1969) [17] Bratman, V.L., Moiseev, M.A., Petelin, M.I., Erm, R.E., 1973 Radio Phys. Quantum Electron. 16 , 474-480. (1973) [18] Fliflet, A.W., Read, M.E., Int. J. Electronics 51,475-484. (1981) [19] G. S. Nusinovich, Int. J. Electron., vol. 64, pp. 127–135.(1988) [20] K. R. Chu, M. E. Read, and A. K. Ganguly, IEEE Trans. Microwave Theory Tech. 28, 318–325. (1980) [21] READ, Af. E., CHU, K. R., and DUDAS, A. J., I.E.E.E. Trans. Microw. Theory Tech., 30, 4246. (1982) [22] Borie, E., Jödicke,B., and Dumbrajs,O., International Journal of Electronics, 61, 735. (1986) [23] Chih-Yuan Lee, Efficiency Enhancement of Gyrotron Oscillator at Second Harmonic Mode. (Master’s thesis, National Taiwan University, Taipei, Taiwan). (2014) [24] J. A. Seftor, A, T. Drobot, and K. R. Chu, IEEE Trans. Electron Devices vol. ED-26, pp. 1609–1616. (1977) [25] Nitin Kumar, Udaybir Singh, and Ashok K. Sinha, Progress In Electromagnetics Research C, Vol. 45, 191–201. (2013) [26] C. P. Yuan, T. H. Chang, N. C. Chen and Y. S. Yeh, Phys. Plasmas 16, 073109. (2009) [27] Mikhail Yu. Glyavin, Arkady L. Goldenberg, Andrey N. Kuftin, Vladimir K. Lygin, Anna S. Postnikova, and Vladimir E. Zapevalov, IEEE Trans. Plasma Sci., vo1.27, pp. 474-483. (1999) | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/19619 | - |
| dc.description.abstract | The electron cyclotron maser (ECM) is an electron radiation mechanism that originates from the interaction between electrons and an electromagnetic wave with a relativistic effect involved. The synchronism condition for sustained interaction requires the electron cyclotron frequency multiplied by cyclotron harmonic number s to be close to the electromagnetic wave frequency. Hence, higher harmonic interactions are of critical importance to the generation of high frequency radiation with a manageable magnetic field. However, the coupling strength decreases as harmonic number increases, which may suggest greater beam power for building up efficient interactions. Also the efficiency in higher harmonic case is usually lower than what is obtainable in the fundamental harmonic case. In this thesis, the optimization conditions for ECM interactions by using both large-orbit electron beam and small-orbit electron beam are examined via fundamental to fourth harmonics, and the efficiency enhancement in a tapered magnetic field are observed through simulation works. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T02:08:58Z (GMT). No. of bitstreams: 1 ntu-105-R02222054-1.pdf: 3335638 bytes, checksum: 7c2598a6ed33a6f93b4365a4393b13b9 (MD5) Previous issue date: 2016 | en |
| dc.description.tableofcontents | List of Figures 5
List of Tables 7 1 Introduction 8 1.1 Basic Mechanism of Electron Cyclotron Maser....................... 9 1.1.1 BasicModel...................................... 10 1.1.2 Azimuthal and AxialBunching ........................... 15 1.2 Harmonic Interaction..................................... 18 1.3 Tapered Magnetic Field ................................... 19 2 Numerical Model 21 2.1 Field Equation ........................................ 21 2.2 ElectronDynamics ...................................... 23 2.3 SimulationModel....................................... 29 3 Simulation Results 34 3.1 Optimum Efficiency..................................... 34 3.1.1 Optimum Efficiency in Constant Static Magnetic Field . . . . . . . . . . . . . . 35 3.1.2 Efficiency Enhancement in Tapered Static Magnetic Field . . . . . . . . . . . . 38 3.2 Dynamics of Electron Beam................................ 44 4 Conclusion .................49 Bibliography..................50 | |
| dc.language.iso | en | |
| dc.title | 電子迴旋脈射之諧波作用研究 | zh_TW |
| dc.title | The Study of Harmonic Electron Cyclotron Maser Interaction | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 104-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 寇崇善,陳仕宏,陳漢穎 | |
| dc.subject.keyword | 電子迴旋脈射,諧波作用,線性靜磁場,磁旋管,繞軸旋轉電子束,離軸旋轉電子束, | zh_TW |
| dc.subject.keyword | electron cyclotron maser,harmonic interaction,tapered magnetic field,gyrotron,large-orbit electron beam,small-orbit electron beam, | en |
| dc.relation.page | 52 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2016-01-29 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 物理研究所 | zh_TW |
| 顯示於系所單位： | 物理學系 | |
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