會議議程
2026/9/1(二)
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10:30 ~ 11:00 報到
11:00 ~ 12:00 電漿現象與太空與電漿科學所介紹 (張博宇所長)
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12:00 ~ 13:00 午餐(會議提供)
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13:10 ~ 14:00 Talk 1 陳秋榮教授 / Introduction of nuclear fusion energy research
14:10 ~ 15:00 Talk 2 張博宇副教授 / 台灣首座核融合研究設施「托克馬克」
15:00 ~ 15:30 Coffee Break
15:30 ~ 16:20 Talk 3 劉耀澧副教授 / 雷射電漿物理簡介
16:30 ~ 17:20 Talk 4 白植豪教授 / 雷射核融合
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2026/9/2(三)
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09:10 ~ 10:00 Talk 5 河森榮一郎教授 / Magnetic fusion experiments: history, recent developments and the tokamak in Taiwan
10:10 ~ 11:00 Talk 6 張滋芳助理教授 / 太空儀器開發
11:10 ~ 12:00 Talk 7 談永頤教授 / 太陽：太空天氣的根源
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12:00 ~ 13:10 午餐(會議提供)
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13:10 ~ 14:00 Talk 8 陳國益助理教授 / 如何從零開始專題：以磁浮飛輪電池為例
14:00 ~ 16:00 實驗室導覽及壁報論文(Coffee Break)
16:00 ~ 16:30 座談
16:30 議程結束
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(1)實體壁報論文海報板張貼範圍為85cm寬X 115cm高
(2)9/2 13:00 前須張貼壁報論文
(2)9/2 14:00 ~ 16:00 請務必於壁報論文前接受詢問
P01 陳正典 成功大學電漿所
福8C(FS-8C) 多重太空粒子能譜分析儀之電路設計與類比訊號處理
陳正典
太空並非完全真空，而是充斥著稀薄的電漿。當太陽風來襲時，會挾帶許多的能量粒子與輻射，對於地球的磁層、電離層都會有顯著的影響，並在地球的不同緯度產生諸多現象，俗稱太空天氣。本研究將設計並實現一套架構簡單但功能完整之類比前端電路系統 ( Analog Front-end circuit, AFEC )，安裝於多重太空粒子能譜分析儀 ( Multiple Particles Analyzer, MPA ) 上，同時此分析儀也將做為福衛八號的科學酬載，於低軌道太空環境進行電漿環境之探測，用於解析太空中範圍介於1 keV ~ 200 keV之能量粒子。
此外，本研究使用電路模擬軟體 (LTSpice) 進行初步的設計，輸入測試訊號並觀察輸出結果，模擬太空中能量粒子進入偵測器後的放大情況，並透過開源電路佈局軟體 (EasyEDA) 進行電路板設計並製作實體的電路板。最後將設計完成的類比前端放大電路板接受各項驗證，包含由訊號產生器提供訊號源檢驗電路板的訊號完整性與放大效果是否符合預期的基礎訊號測試，以及通過如熱循環 (Thermal Vacuum Cycling, TVC)、環境應力篩選 (Environment Stress Screening, ESS) 的太空環境檢測，驗證其於太空極端環境中依然能夠維持功能正常，具備「太空電路」之能力。
P02 Sachin Sharma 成功大學電漿所
Optical Emission Spectroscopy for Plasma Diagnostics in the MPX Device
Sachin Sharma, Eiichiro Kawamori
Optical Emission Spectroscopy (OES) is a non-invasive diagnostic technique that provides valuable information about the physical properties and composition of laboratory plasmas[1]. In this work, OES is investigated as a diagnostic tool for characterizing the plasma produced in the Magnetic Plasma eXperiment (MPX)[2]. The emission spectrum is analyzed to identify characteristic spectral lines originating from the working gas and possible impurity species. In particular, the intensity, relative population, and spectral broadening of selected emission lines can be used to investigate plasma conditions such as electron excitation processes, impurity content, and ion temperature. Doppler broadening of suitable spectral lines provides an opportunity to estimate the ion temperature, while the observation of impurity lines can provide information on plasma-wall interactions and impurity sources. The present study focuses on establishing an OES-based diagnostic approach for MPX and evaluating its capability for spectroscopic characterization of the plasma. The results are expected to provide complementary information to other plasma diagnostics and contribute to a better understanding of plasma behavior and impurity generation in MPX.
References:
1. M. A. Lieberman and A. J. Lichtenberg, Principles of Plasma Discharges and Materials Processing, MRS Bulletin, 30(12), 899-901 (1994).
2. Eiichirou Kawamori, et al. Lithium plasma emitter for collisionless magnetized plasma experiment. Rev. Sci. Instrum. 82 (9), 093502 (2011).
P03 Sachin Sharma 成功大學電漿所
Dusty Plasma: From Charged Dust to Waves and Vortices
Sachin Sharma
Dusty plasma is a complex plasma system in which micron or submicron sized solid particles become charged and interact with electrons, ions, and the surrounding plasma. In this work, an experimental dusty plasma system Shivalik Plasma Device - I (SPD-I) at IIT Jammu was utilised to investigate the behavior of charged dust particles under controlled plasma conditions [1]. Due to their slow dynamics compared to electrons and ions, they can be easily tracked using standard imaging setup. This characteristic makes dusty plasmas an ideal platform for studying flow, waves, instabilities, and turbulence at kinetic levels, even in fluid regimes.
Dust particles were introduced into a low-pressure DC discharge plasma, where they acquired electric charge through interactions with electrons and ions. The formation, confinement, and dynamics of the dust particles were observed as a function of the discharge and plasma conditions. Optical and imaging-based observations were used to characterize the dusty plasma and examine the response of dust particles to changes in the plasma environment. The presence of dust provides an additional charged component and can significantly modify plasma properties, collective behavior, and particle transport. The experimental results demonstrate the formation of a stable dusty plasma and various collective dynamics including waves, oscillations, vortices etc. [2,3].
References:
1. Sachin Sharma, et al. "Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasma." AIP Advances 13.12 (2023).
2. Sachin Sharma, et al. "Shock wave bending around a dusty plasma void." Physics of Plasmas, 32, 10 (2025).
3. Sachin Sharma, et al. "Observation of Kolmogorov turbulence due to multiscale vortices in dusty plasma experiments." Physics of Plasmas, 31, 12 (2024).
P04 Z. Lee 成功大學電漿所
Taiwan Spherical Tokamak Project FIRST (Formosa Integrated Research of Spherical Tokamak) & its diagnostic systems using millimeter-waves
Z. Lee, E. Kawamori
The Formosa Integrated Research Spherical Tokamak (FIRST) is Taiwan's first spherical tokamak and is being developed at the National Atomic Research Institute (NARI) as a nationwide collaborative program involving NARI, National Cheng Kung University (NCKU), National Tsing Hua University (NTHU), and the National Center for High-performance Computing (NCHC). The FIRST project aims to establish a domestic experimental platform for magnetic confinement fusion research and to support studies of plasma equilibrium, confinement, transport, and stability in spherical tokamaks. Planned research topics include plasma operation with negative triangularity, investigations of electron-scale turbulence, and the development of advanced plasma diagnostics. The FIRST device has a major radius of approximately 0.45 m, a minor radius of approximately 0.32 m, a designed toroidal magnetic field of up to 0.5 T, a plasma current of approximately 100 kA, an electron density in the range of (10^{18})–(10^{19},\mathrm{m^{-3}}), and an electron temperature ranging from approximately 100 eV to 1 keV. Multiple diagnostic ports are incorporated into the device to accommodate magnetic, electrostatic, optical, and millimeter-wave diagnostics.
To support these research objectives, integrated millimeter-wave diagnostic systems are being developed for FIRST. The diagnostic systems include a D-band (110–170 GHz) microwave interferometer for line-integrated electron density measurements, an Electron Cyclotron Emission (ECE) diagnostic for localized electron temperature measurements, and a shared quasi-optical transmission and beam-combining system that accommodates multiple microwave diagnostics within the limited diagnostic access of the spherical tokamak. The optical layout has been designed to provide flexibility for future diagnostic expansion while maintaining efficient beam transmission and alignment.
An intermediate-frequency (IF) receiver system is currently under development as a common signal-processing platform for the millimeter-wave diagnostics. The receiver architecture consists of a common local oscillator distribution network, IQ down-conversion modules, IF amplification and filtering stages, and synchronized high-speed data acquisition. A unified IF architecture is adopted for multiple microwave diagnostic systems to reduce hardware complexity while preserving the phase and amplitude information required for plasma measurements. This common architecture also facilitates synchronization and cross-comparison among different millimeter-wave diagnostics.
A D-band microwave scattering diagnostic is also being developed for future implementation in FIRST. The planned scattering system is designed to access the electron-scale wavenumber range for measurements of density fluctuations associated with electron temperature gradient (ETG) turbulence. The common quasi-optical transmission system and IF receiver architecture provide compatibility among interferometry, ECE, and microwave scattering diagnostics within a unified diagnostic platform.
The integrated millimeter-wave diagnostic systems developed for FIRST will provide measurements of electron density, electron temperature, and electron-scale density fluctuations during future plasma operation. These diagnostic capabilities will support experimental studies of negative triangularity plasmas, electron-scale turbulence, and transport processes in Taiwan's first spherical tokamak, while establishing a flexible diagnostic platform for future expansion of the FIRST research program.
P05 張元耀 成功大學電漿所
Development of a Method for Evaluating Electron Temperature from Electron Cyclotron Emission Spectra in Optically Thin Magnetized Plasmas
Yuan-Yao, Chang, E.Kawamori
Electron cyclotron emission (ECE) is widely used for electron temperature measurements in optically thick plasmas, while its application to optically thin plasmas remains challenging. In this study, we propose a calibration method for estimating the electron temperature in optically thin plasmas using the intensity ratio of ECE harmonics.
Based on the Schott–Trubnikov formula [1], theoretical calculations show a one-to-one relationship between the electron temperature and the intensity ratio of the second and third harmonics. The ratio is also relatively insensitive to variations in magnetic field and electron density in the low-temperature regime.
The proposed method was experimentally investigated using the Magnetized Plasma eXperiment (MPX) at National Cheng Kung University. The second- and third-harmonic ECE intensities were measured using an ECE radiometer, while a Langmuir probe provided an independent electron temperature reference. A receiving lens was used to improve the collection of the ECE signal.
This harmonic-ratio method provides a potential approach for electron temperature measurements in optically thin plasmas and may be applied to Taiwan’s first spherical tokamak under the FIRST project.
[1] I.H. Hutchinson and K. Kato, Nucl. Fusion, 26, 179 (1986).
P06 王玄同 成功大學關鍵材料學程
W/B Multilayer as a Potential Plasma-Facing Material for Suppressing Helium-Induced Damage
Xuan-Tong Wang, E.Kawamori
This study focuses on plasma-facing materials (PFMs) for fusion reactors, which are exposed to extreme heat loads, plasma particle bombardment, and neutron irradiation. Tungsten (W) is considered one of the leading PFM candidates because of its high melting point, low sputtering yield, and relatively low tritium retention. However, high-flux helium plasma can cause He bubble formation and eventually lead to W fuzz, resulting in surface degradation, material erosion, reduced material lifetime, and possible W impurity contamination of the plasma. Therefore, this study proposes a W/B multilayer structure as a potential strategy to suppress or delay helium-induced damage through multilayer interfaces and the structural complexity of the W–B system, and to explore its potential for future fusion PFM applications.
P07 劉秉儒 成功大學電漿所
應用於太空環境的離子束校正系統
劉秉儒、張滋芳、江致宇、黃昭瑜、蔡勝丞、顏子恩、鄭鈺融
太空中主要的組成成分是電漿，是物質的第四態。太空環境因為受到太陽的影響有著11年極大值和極小值的週期循環，這些變化都時時刻刻影響著太空天氣。人類透過打造各式儀器搭載人照衛星進行長時間的監控，收集著帶電粒子的各種物理參數，而資料的正確性就成為儀器升空前最重要的校正工作。為此，我們於真空實驗室平台建置可調式離子源，透過參數設定獨立控制離子種類、動能與束流強度，以此標準化來源對待測儀器進行校正與物理數據轉換，量測其在不同入射能量下的響應，並以SIMION模擬比對量測結果，完成整體驗證。
P08 許毅杰 成功大學電漿所
應用於太空環境的離子束校正系統
I-CHIEH HSU, Tzu-Fang Chang, Chih-Yu Chiang, Tzu-En Yen, Yung-An Chuang, Kuan-Ting Chen, Po-Tsung Hsieh, Chih-Jeng Huang, Yi-Cheng Liu
The space environment contains particles with a diverse range of energy levels and electrical properties. To elucidate the distribution of these particles in space, we have developed a set of semiconductor detectors designed for measuring particles across the low- to medium-energy spectrum. The objective of this study is to develop a laboratory-fabricated silicon solid-state detector (SSD) for the measurement of various charged particles. Our primary material for the SSD is a high-purity n-type 100 silicon substrate, which features an effective detection area of approximately 9 mm2. Utilizing an electrostatic field generated by a high-voltage deflector, particles with differing electrical characteristics can be effectively separated and directed to designated locations on the SSD. This capability allows the SSD to assess the energy distribution of electrons, ions, and neutral particles from about 1 keV to 200 keV.
The developed SSD exhibits remarkably low leakage current, enabling the measurement of the current from incident particles across a bias voltage range of 1 to 100 V. Furthermore, the leakage current serves as a critical parameter for evaluating the background noise of the detector. In this study, we will present the basic electrical test results of the detector, supplemented by experimental data from plasma source measurements conducted in a vacuum chamber.
Keywords : semiconductor, detector, electrons, ions, neutral particles