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Hiroshi Akatsuka

Has grant

Associate Professor

Tokyo Institute of Technology

Japan

Research Interests

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Professors in Japan Professors in Condensed Matter Physics Condensed Matter Physics professors in Japan

About

Hiroshi Akatsuka is an Associate Professor at the Tokyo Institute of Technology in Japan. His research focuses on nonequilibrium plasma physics, with recent articles examining topics such as electron temperature definitions, collisional-radiative models, and the effects of nitrogen in underwater plasma discharges. His work contributes to advancements in plasma diagnostics and applications in nuclear decommissioning and process monitoring.

Recent Grants

Grant: Open

Measurement of electron energy distribution function by both continuum and emission line spectra of atmospheric pressure non-equilibrium plasma

Open Date: 2025-04-01

Close Date: 2028-03-01

Grant: Close

各種エントロピー理論に基づいた弱電離非平衡プラズマの温度の再考

Open Date: 2022-04-01

Close Date: 2025-03-31

Grant: Close

Diagnostics of Electron Energy Distribution Function of Atmospheric-Pressure Plasmas with Phase-Resolved Optical Emission Spectroscopy Measurement of Continuum Spectrum

Open Date: 2019-04-01

Close Date: 2022-03-31

Grant: Close

Time-resolved optical emission spectrtoscopy pulse discharge plasmas and their atomic/molecular processes

Open Date: 2014-04-01

Close Date: 2017-03-31

Grant: Close

Time-resolved optical emission spectrtoscopy pulse discahrge plasmas and their atomic/molecular processes

Open Date: 2014-04-01

Close Date: 2017-03-31

Articles (25)

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2026

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2023

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2022

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2022

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2022

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2022

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2022

Collaborators (3)

Shinji Yoshimura

Associate Professor

核融合科学研究所/National Institute for Fusion Science

JAPAN

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Motoshi Goto

教授/Professor

核融合科学研究所/National Institute for Fusion Science

JAPAN

View details

Yuya Yamashita

High Frequency and Optical Device Research Group, Core Electronics Technology Research Institute, Department of Electronics and Manufacturing

National Institute of Advanced Industrial Science and Technology (AIST)

JAPAN

View details

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Hiroshi Akatsuka

Research Interests

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About

Recent Grants

Articles (25)

Multiple solutions in the T e – N e parameter space of argon CR model via Monte Carlo optimization

Collisional-Radiative Model for Atmospheric-Pressure Cold Helium Plasmas with Air Impurities

Optical emission spectroscopic diagnostics of atmospheric-pressure argon plasmas with a refined collisional-radiative model and undetected-line penalty

Spectroscopic measurement of atmospheric-pressure non-equilibrium argon plasma based on continuum and line spectra using a weighted analysis

Evaluation of relaxation to steady state using a collisional-radiative model based on the analogy of transfer entropy

Definition of electron temperature of nonequilibrium plasma based on Tsallis and Rényi entropy maximization principles

Definition of electron temperature of nonequilibrium plasma based on Tsallis and Rényi entropy maximization principles

Effect of nitrogen admixture to underwater argon arc discharge plasma for nuclear decommissioning

Sensitivity Analysis of Excited-State Population in Plasma Based on Relative Entropy

Spectroscopic measurement of atmospheric-pressure non-equilibrium Ar plasma using continuum and line spectra

OES diagnostics of atmospheric pressure argon plasma: Electron temperature and density assessment through visible bremsstrahlung inversion method and collisional-radiative model

Spatial distribution diagnosis of electron temperature and density of argon inductively coupled plasma by tomographic optical emission spectroscopic measurement and collisional-radiative model

Comparison of Electron Densities and Temperatures in Helium and Argon Nonthermal Atmospheric-Pressure Plasmas by Continuum Spectral Analysis

Quantitative analysis of optical emission spectroscopy for plasma process monitoring

Radial dependence diagnosis of inductively coupled Ar plasma based upon optical emission spectroscopic measurement with spectral reflectance compensation

Partial EEDF analysis and electron diagnostics of atmospheric-pressure argon and argon–helium DBD plasma

Improved Line Intensity Analysis of Neutral Helium by Incorporating the Reabsorption Processes in a Helium Collisional-Radiative Model

Development of diagnostics of electron density and temperature for atmospheric-pressure helium plasma based on optical emission spectroscopy analysis and a collisional-radiative model

Discussion on Electron Temperature of Gas-Discharge Plasma with Non-Maxwellian Electron Energy Distribution Function Based on Entropy and Statistical Physics

Reconsideration of Temperature Determined by the Excited-State Population Distribution of Hydrogen Atoms Based on Tsallis Entropy and Its Statistics in Hydrogen Plasma in Non-Equilibrium State

Estimation of Electron Density and Temperature by Continuum Spectrum in a Moving Atmospheric-Pressure Nonthermal-Equilibrium Argon Plasma Bullet

Optical emission spectroscopy diagnosis of low-pressure microwave discharge helium plasma based on collisional-radiative model

Practical considerations of the visible bremsstrahlung inversion (VBI) method for arbitrary EEDF determination in cold atmospheric-pressure plasma

Heat Transfer and Thermohydraulic Characteristics of <scp>Arc‐Discharge</scp> Argon Plasma Plume Injected into Water

Optical Emission Spectroscopic Measurement of Argon Low-Pressure Inductively Coupled Plasma Based on the Optimization Algorithm of Plasma Diagnostic Model

Collaborators (3)

Shinji Yoshimura

Motoshi Goto

Yuya Yamashita

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