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系統識別號 U0026-0901201102205200
論文名稱(中文) 應用於磁化電漿量測之微波干涉計研發
論文名稱(英文) Development of Microwave Interferometry System for Magnetized Plasma Diagnostics
校院名稱 成功大學
系所名稱(中) 太空天文與電漿科學研究所
系所名稱(英) Assistant, Institute of Space, Astrophysical and Plasma Sciences(ISAPS)
學年度 99
學期 1
出版年 100
研究生(中文) 王勗哲
研究生(英文) Syu-Jhe Wang
學號 la697102
學位類別 碩士
語文別 英文
論文頁數 64頁
口試委員 指導教授-陳秋榮
口試委員-河森榮一郎
口試委員-間瀨淳
口試委員-張嘉展
中文關鍵字 磁化電漿  微波  干涉計 
英文關鍵字 plasma  microwave  interferometry 
學科別分類
中文摘要 本篇論文之主要目的為發展量測電漿參數之微波診測儀器-微波干涉儀。首先我們從電漿波理論來探討電磁波於磁化電漿的行為,電磁波的電場方向與外加磁場方向的不同會使得其色散關係有所不同。進而可以得知電磁波其相位變化與電漿參數(如電漿密度)有所關連。干涉計為一利用電磁波通過電漿後所產生之相位差來量測電漿密度的非接觸式之量測儀器,利用此儀器量測成大電漿中心磁化電漿系統之電漿密度,並探討之後可以改進的地方。
英文摘要 In the thesis, we develop a microwave interferometer system to measure the line-integrated plasma density. At first, we discuss the EM wave propagation in magnetized plasmas by using the plasma wave theory. The EM wave dispersion relation depends on the direction of the wave electric field with respect to the external magnetic field. We can use the dispersion relation to obtain the relation between the phase delay of the probe wave and the line-integrated plasma density. The interferometry system measures the phase delay and is a non-contact instrument for the plasma density measurement in magnetized plasmas. The EM wave is divided into two paths: the probe wave passes through the plasma and the other wave serves as the reference signal. We use mixers to combine the two signals and obtain the phase difference to calculate the plasma line-integrated density. The plasma line-integrated density is on the order of 1015~1017 m-2 in the magnetic mirror plasma device at the Plasma and Space Science Center (PSSC) at the National Cheng Kung University (NCKU). Finally, we discuss what can be improved in the future.
論文目次 摘要 1
Abstract 2
致謝 3
List of Figures 6
List of Table 10
Chapter 1 Introduction 11
1.1 Motivation 11
1.2 What is fusion? 11
1.3 Microwave diagnostics[1][2] 16
1.3.1 Microwave interferomtry system 16
1.3.2 Microwave reflectometry system 17
1.3.3 Electron cyclotron emission 19
1.3.4 The thesis purpose 20
Chapter 2 Plasma wave theory 21
2.1 Plasma wave theory[1] 21
2.2 Plasma wave theory for interferometry system 25
2.3 Ordinary mode 27
2.4 Extraordinary mode 29
Chapter 3 The interferometer system 32
3.1 The interferometry system design and set up[3] 32
3.2 Phase measurement 41
Chapter4 Experimental results 48
4.1 Magnetized plasma[13] 48
4.2 Experimental results 52
Chapter 5 Summary and Future work 60
References 63
參考文獻 [1] I. H. Hutchinson, Principle of Plasma Diagnostic, 2nded. Cambridge University (2002)
[2] Heterodyne methods in millimetre wave plasma diagnostics with applications to ECE, interferometry and reflectometry H J Hartfuss et al 1997 Plasma Phys. Control. Fusion 39 1693
[3]David M. Pozar, “Microwave Engineering”. 2nded. John Willey & Son (1998)
[4] Francis F. Chen, Introduction to Plasma Physics and Controlled Fusion, Plenum Press, New York (1974)
[5] Re Collin, Foundations for Microwave Engineering, 2nded. McGraw-Hill, New York (1992)
[6] Deepak K. Ghodgaonkar, Vasundara V. Varadan, and Vijay K. Varadan, “A free-Space Method for Measurement of Dielectric Constants and Loss Tangents at Microwave Frequencies”, IEEE Trans. Instrum. Meas., vol. 37, no. 3. (June 1989)
[7] Jindrich Musil, F. Z. “Microwave Measurement of Complex Permittivity by Free Space Methods and Their Applications”, Elsevier Science Publishing Company. (1986)
[8] http://en.wikipedia.org/wiki/Tokamak.
[9] http://www.usiter.org/imges/iter_full.jpg
[10] http://epaper.kek.jp/e98/PAPERS/WEP09A.PDF
[11] http://pitjournal.unc.edu/volume1/issue1/pogrebnyak
[12] http://physicsworld.com/cws/article/print/43875
[13]http://etds.lib.ncku.edu.tw/etdservice/download_file?etdun=U0026-0812200915130713&fileName=U0026-0812200915130713-1.pdf
[14] Heterodyne methods in millimetre wave plasma diagnostics with applications to ECE, interferometry and reflectometry H J Hartfuss et al 1997 Plasma Phys. Control. Fusion 39 1693
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