Research field (2)：
Nuclear engineering
, Basic plasma science
Research keywords (11)：
Plasma
, Electric discharges
, Nuclear energy in general
, Molecular spectra
, Atomic spectra
, Plasma Science and Technology
, 原子力一般
, プラズマ
, プラズマ物理学
, プラズマ化学
, プラズマ分光
Research theme for competitive and other funds (23)：
2022 - 2025 Reconsideration of temperatures for non-equilibrium plasmas with low-ionization degree based on various entropy theory
2014 - 2017 パルス放電プラズマの時間分解発光分光計測と原子分子過程
2014 - 2016 原子分子過程の非平衡性を積極的に利用する窒素ダイバータプラズマ
2008 - 2011 分子性気体の大気圧非平衡プラズマの素過程と発光分光計測に関する研究
2006 - 2008 大気圧プラズマの発光分光計測に関する基礎研究
2004 - 2006 衝突輻射モデルに基づく、非平衡プラズマの電子エネルギー分布関数の分光計測
2002 - 2004 マイクロ波放電によるプラズマ化学反応を用いた窒素の同位体分離
2001 - 2003 Development of Radio-Active Waste Decontamination Process by Using Atmospheric Pressure Plasma and Its Safety Analysis.
2000 - 2002 固体標的への低温高密度水素プラズマ照射時における再放出水素の分光学的特性
1991 - 2002 Generation and Diagnostics of Plasmas for Discharge Pumped Lasers
1999 - 2001 Study on Ultra-Long Life Ores Lolled with Transuranium Fuels
1999 - 2000 強い放射能を有する物質の同位体分離の可能性に関する企画調査研究
1998 - 2000 放電励起酸素ヨウ素レーザーの基礎研究
1997 - 1998 Direct Vitrification of Chloride Waste by Micro-Wave Heated OxygenPlasma
1997 - 1998 Decontamination Process by High Density Active Atoms in An Atmosheric-Pressure Plasma
1997 - 1997 Nuclear Energy Systems with Zero Release of Radioactive Materials
1995 - 1996 Conversion of Chloride Wastes to Oxides by Microwave Heated Oxugen Plasma
1993 - 1994 ISOTOPE SEPARATION BY DC ARC DISCHARGE
1991 - 1994 固相分子法による高選択レーザー物質分離の基礎研究
1992 - 1993 短波長レーザ発振器への応用に関する再結合プラズマの分光学的研究
Numerical Simulation of neutral particles movement in rarefied weakly ionized plasmas
Plasma Spectroscopy epecially on the diagnostics of plasmas
Isotope Separation in plasmas
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Papers (179)：
Yuya Yamashita, Kenta Doi, Tetsuji Kiyota, Kenta Ishi, Shuhei Watanabe, Wataru Kikuchi, Atsushi Nezu, Hiroshi Akatsuka. Spatial distribution diagnosis of electron temperature and density of argon inductively coupled plasma by tomographic optical emission spectroscopic measurement and collisional-radiative model. Journal of Vacuum Science & Technology A. 2024. 42. 2
Yuya Yamashita, Kenta Doi, Tetsuji Kiyota, Keiichiro Asakawa, Sotaro Hosoya, Wataru Kikuchi, Atsushi Nezu, Hiroshi Akatsuka. Radial dependence diagnosis of inductively coupled Ar plasma based upon optical emission spectroscopic measurement with spectral reflectance compensation. Review of Scientific Instruments. 2023. 94. 8
Yuya Yamashita, Takuya Akiba, Toshihide Iwanaga, Shuichi Date, Hidehiko Yamaoka, Hiroshi Akatsuka. Optical Emission Spectroscopic Measurement of Argon Low-Pressure Inductively Coupled Plasma Based on the Optimization Algorithm of Plasma Diagnostic Model. IEEE Transactions on Plasma Science. 2022. 50. 6. 1875-1889
H. Horita, D. Kuwahara, H. Akatsuka, S. Shinohara. Estimating electron temperature and density using improved collisional-radiative model in high-density RF argon plasma. AIP Advances. 2021. 11. 7. 075226-075226
Toshifumi Yuji, Kenichi Nakabayashi, Hiroyuki Kinoshita, Narong Mungkung, Yoshifumi Suzaki, Sarizam Mamat, Hiroshi Akatsuka. Development of Decontamination Treatment Techniques for Dry Powder Foods by Atmospheric-Pressure Nonequilibrium DC Pulse Discharge Plasma Jet. Journal of Food Quality. 2021. 2021. 8896716-7
Yuya Yamashita, Hiroshi Akatsuka. The excited-state distribution analysis of the low-pressure microwave discharge argon plasma for electron energy distribution function diagnosis by optical emission spectroscopic measurement. Extended abstracts of The 80th JSAP Autumn Meeting 2019. 2019. 07-082
Yuya Yamashita, Hiroshi Akatsuka. Excitation kinetic model for argon process plasma diagnostics by spectroscopic measurement based on collisional-radiative model. 第78回応用物理学会秋季学術講演会講演予稿集. 2017. 07-007
Optical emission spectroscopic (OES) analysis of electron temperature and density in atmospheric-pressure non-equilibrium argon plasmas
(3rd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2019) 2019)
Optical emission spectroscopic analysis for diagnostics of electron density and temperature in non-equilibrium plasmas
(The Joint Conference of XXXIV International Conference on Phenomena in Ionized Gases (XXXIV ICPIG) and the 10th International Conference on Reactive Plasmas (ICRP-10) 2019)
Basic Experiments of Expanding Arc-Jet with Low-Ionization Degree and its Hybrid Simulation
(19th International Congress on Plasma Physics (ICPP 2018) 2018)
プラズマ発光分光計測のこれまでとこれから
(平成30年電気学会全国大会 2018)
Diagnostics of N2-Based Gas Discharge Plasma by Optical Emission Spectroscopy on Atomic and Molecular Processes
(1st Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2017) 2017)
