TOMOYUKI JOZAKI

Last Updated :2024/06/05

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Professor
Web Site
E-mail
tjohzakihiroshima-u.ac.jp
Self-introduction
My research major is numerical study for laser plasma such as laser fusion, laser acceleration, laser plasma light source.

Basic Information

Academic Degrees

  • Doctor of Engineering, Kyushu University
  • Master of Engineering, Kyushu University

Educational Activity

  • [Bachelor Degree Program] School of Engineering : Cluster 1(Mechanical Systems, Transportation, Material and Energy) : Program of Energy Transform Engineering
  • [Master's Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Mechanical Engineering Program
  • [Doctoral Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Mechanical Engineering Program

Research Fields

  • Mathematical and physical sciences;Plasma science;Plasma science
  • Engineering;Integrated engineering;Nuclear fusion studies
  • Interdisciplinary science and engineering;Computational science;Computational science

Research Keywords

  • Laser Plasma Physics
  • Numerical Simulation
  • Laser Fusion
  • High Energy Density Physics

Affiliated Academic Societies

  • The Physical Society of Japan
  • American Physical Society
  • The Japan Society of Plasma Science and Nuclear Fusion Research

Educational Activity

Course in Charge

  1. 2024, Liberal Arts Education Program1, 4Term, Industry and Technology
  2. 2024, Liberal Arts Education Program1, 1Term, Carbon-neutral Science and Technology
  3. 2024, Undergraduate Education, 2Term, Computer Programming
  4. 2024, Undergraduate Education, 3Term, Elementary Electromagnetism
  5. 2024, Undergraduate Education, 3Term, Computational Fluid Dynamics
  6. 2024, Undergraduate Education, 2Term, Reliability Engineering
  7. 2024, Undergraduate Education, 4Term, Nuclear Engineering
  8. 2024, Undergraduate Education, Year, Graduation Thesis
  9. 2024, Undergraduate Education, Second Semester, Mechanical Engineering Seminar
  10. 2024, Graduate Education (Master's Program) , 1Term, Special Exercises on Mechanical Engineering A
  11. 2024, Graduate Education (Master's Program) , 2Term, Special Exercises on Mechanical Engineering A
  12. 2024, Graduate Education (Master's Program) , 3Term, Special Exercises on Mechanical Engineering B
  13. 2024, Graduate Education (Master's Program) , 4Term, Special Exercises on Mechanical Engineering B
  14. 2024, Graduate Education (Master's Program) , Academic Year, Special Study on Mechanical Engineering
  15. 2024, Graduate Education (Master's Program) , 3Term, Advanced Reactive Gas Dynamics
  16. 2024, Graduate Education (Doctoral Program) , Academic Year, Special Study on Mechanical Engineering

Research Activities

Academic Papers

  1. 4. Advanced-Fuel Fusion Researches in Inertial Fusion, Journal of Plasma and Fusion and Fusion Research, 98(2), 81-85, 20220225
  2. Efficient photo-dissociation-induced production of hydrogen radicals using vacuum ultraviolet light from a laser-produced plasma, APPLIED PHYSICS LETTERS, 124(1), 20240101
  3. Effect of Kilo-Tesla Magnetic Fields on Ignition and Burn Dynamics in Fast Ignition Laser Fusion*), PLASMA AND FUSION RESEARCH, 18, 20230828
  4. Effects of hydrogen concentration in ablator material on stimulated Raman scattering, two-plasmon decay, and hot electrons for direct-drive inertial confinement fusion, PHYSICAL REVIEW RESEARCH, 5(3), 20230725
  5. Enhancement of K-shell spectroscopy for temperature measuring of isochorically heated matter in the sub-keV range, PLASMA PHYSICS AND CONTROLLED FUSION, 65(5), 20230501
  6. Influences of a small obstacle on the sidewall upon a detonation cellular structure, Journal of Thermal Science and Technology, 18(1), 23-00038-1-23-00038-14, 20230426
  7. Hot electron and ion spectra on blow-off plasma free target in GXII-LFEX direct fast ignition experiment, NUCLEAR FUSION, 63(3), 036009-1-036009, 20230301
  8. Effect of particle size on the minimum ignition energy of aluminum powders, POWDER TECHNOLOGY, 415, 118190-1-118190-5, 20230201
  9. Generation of Highly Charged Au Ion in Laser-Produced Plasma for Water Window X-ray Radiation Sources, ATOMS, 10(4), 150-1-150-6, 20221209
  10. Demonstration of a spherical plasma mirror for the counter-propagating kilojoule-class petawatt LFEX laser system, OPTICS EXPRESS, 30(24), 43491-43502, 20221121
  11. ★, Dependence of resistivity gradient guiding of laser-driven relativistic electron beams on laser intensity and duration, PHYSICS OF PLASMAS, 29(11), 112707-1-112707-12, 20221114
  12. Direct fast heating efficiency of a counter-imploded core plasma employing a laser for fast ignition experiments (LFEX), NUCLEAR FUSION, 62(9), 096013-1, 20220901
  13. Picosecond snapshot imaging of electric fields induced on a cone guide target designed for fast ignition scenario, JOURNAL OF PLASMA PHYSICS, 88(4), 20220803
  14. Estimation of a Plasma Mirror Reflectivity of LFEX Laser and Relevant Results Using Electron Energy Spectrometers, PLASMA AND FUSION RESEARCH, 17, 2404084-1-2404084-4, 20220517
  15. Super-strong magnetic field-dominated ion beam dynamics in focusing plasma devices, SCIENTIFIC REPORTS, 12(1), 6876-1-6876-12, 20220427
  16. Ten hertz bead pellet injection and laser engagement, NUCLEAR FUSION, 62(3), 036028-1-036028-7, 20220301
  17. Fuel and Propellant Design for Laser Fusion Rocket, Journal of Plasma Fusion Research, 97(11), 623-627, 20211125
  18. Improvement of ignition and burning target design for fast ignition scheme, NUCLEAR FUSION, 61(12), 20211103
  19. 2.Progress of Various Ignition Schemes, The Journal of The Institute of Electrical Engineers of Japan, 141(9), 555-558, 20210901
  20. Hot Electron and Ion Spectra in Axial and Transverse Laser Irradiation in the GXII-LFEX Direct Fast Ignition Experiment, PLASMA AND FUSION RESEARCH, 16, 20210607
  21. Scenario for Ignition and Burning in Fast Ignition Laser Fusion, The Review of Laser Engineering, 49(3), 135-141, 20210320
  22. Promotion of deflagration-to-detonation transition by repeated obstacle rods, JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY, 16(2), JTST0018-1-JTST0018-10, 20210113
  23. Numerical analysis on a conical shaped target for laser fusion rocket, HIGH ENERGY DENSITY PHYSICS, 37, 100894-1-100894-6, 20201016
  24. Verification of fast heating of core plasmas produced by counter-illumination of implosion lasers, HIGH ENERGY DENSITY PHYSICS, 37, 100890-1-100890-6, 20200930
  25. Self-similar propagation of spherically expanding flames in lean hydrogen-air mixtures, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 45(46), 25608-25614, 20200921
  26. Deflagration-to-detonation transition in laser-ignited explosive gas contained in a smooth-wall tube, COMBUSTION AND FLAME, 219, 275-282, 20200620
  27. Observation of water-window soft x-ray emission from laser-produced Au plasma under optically thin condition, HIGH ENERGY DENSITY PHYSICS, 37, 100845-1-100845-7, 20200619
  28. ★, Petapascal Pressure Driven by Fast Isochoric Heating with a Multipicosecond Intense Laser Pulse, PHYSICAL REVIEW LETTERS, 124(3), 20200124
  29. Simple Analysis of the Laser-to-Core Energy Coupling Efficiency with Magnetized Fast Isochoric Laser Heating, PLASMA AND FUSION RESEARCH, 14(3404138), 20190925
  30. Study of fast ignition target design for ignition and burning experiments, NUCLEAR FUSION, 59(10), 106055-1-106055-8, 20190913
  31. Electromagnetic field growth triggering super-ponderomotive electron acceleration during multi-picosecond laser-plasma interaction, COMMUNICATIONS PHYSICS, 2, 99, 20190827
  32. Minimum ignition energy and minimum explosible concentration of L-isoleucine and glycine powder, POWDER TECHNOLOGY, 347, 207-214, 20190401
  33. Enhancement of water-window soft x-ray emission from laser-produced Au plasma under low-pressure nitrogen atmosphere, OPTICS LETTERS, 44(6), 1439-1442, 20190315
  34. Experiments on laser cleaning of sooted optical windows, APPLIED OPTICS, 57(36), 10522-10527, 20181220
  35. ★, Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states, NATURE COMMUNICATIONS, 9(1), 3937-1-3937-9, 20180926
  36. Experimental study on self-acceleration in expanding spherical hydrogen-air flames, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 43(27), 12556-12564, 20180530
  37. Experimental demonstration of ion extraction from magnetic thrust chamber for laser fusion rocket, JAPANESE JOURNAL OF APPLIED PHYSICS, 57(5), 050303, 20180519
  38. Thomson Scattering Measurement of Laser-Produced Plasma in a Magnetic Thrust Chamber, PLASMA AND FUSION RESEARCH, 13, 1306016, 20180323
  39. Comparative study of laser ignition and spark-plug ignition in high-speed flows, COMBUSTION AND FLAME, 191, 408-416, 20180220
  40. Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle, SCIENTIFIC REPORTS, 7, 8910, 20170822
  41. Compression and electron beam heating of solid target under the external magnetic field for fast ignition, NUCLEAR FUSION, 57(8), 086009, 20170614
  42. Kinetic modeling of x-ray laser-driven solid Al plasmas via particle-in-cell simulation, PHYSICAL REVIEW E, 95(6), 063203, 20170606
  43. Improvement in the heating efficiency of fast ignition inertial confinement fusion through suppression of the preformed plasma, NUCLEAR FUSION, 57(6), 066022, 20170425
  44. Validation of thermal conductivity in magnetized plasmas using particle-in-cell simulations, PHYSICS OF PLASMAS, 24(4), 042117, 20170418
  45. Boosting laser-ion acceleration with multi-picosecond pulses, SCIENTIFIC REPORTS, 7, 42451, 20170213
  46. An experimental study on the ignition ability of a laser-induced gaseous breakdown, COMBUSTION AND FLAME, 178, 1-6, 20170201
  47. ★, Integrated simulation of magnetic-field-assist fast ignition laser fusion, PLASMA PHYSICS AND CONTROLLED FUSION, 59(1), 014045, 20161116
  48. Ultrahigh-contrast kilojoule-class petawatt LFEX laser using a plasma mirror, APPLIED OPTICS, 55(25), 6850-6857, 20160823
  49. Fast ignition realization experiment with high-contrast kilo-joule peta-watt LFEX laser and strong external magnetic field, PHYSICS OF PLASMAS, 23(5), 20160503
  50. Thermal Spray Using a High-Frequency Pulse Detonation Combustor Operated in the Liquid-Purge Mode, JOURNAL OF THERMAL SPRAY TECHNOLOGY, 25(3), 494-508, 20160222
  51. Reinjection of transmitted laser light into laser-produced plasma for efficient laser ignition, APPLIED OPTICS, 55(5), 1132-1137, 20160210
  52. Reinjection of transmitted laser light into laser-produced plasma for efficient laser ignition, Applied Optics, 55(5), 1132-1137, 20160210
  53. Heating efficiency evaluation with mimicking plasma conditions of integrated fast-ignition experiment, PHYSICAL REVIEW E, 91(6), 20150605
  54. Kilotesla Magnetic Field due to a Capacitor-Coil Target Driven by High Power Laser, SCIENTIFIC REPORTS, 3, 20130130
  55. X-ray backlight measurement of preformed plasma by kJ-class petawatt LFEX laser, JOURNAL OF APPLIED PHYSICS, 112(6), 20120915
  56. Enhanced relativistic electron beams intensity with self-generated resistive magnetic field, HIGH ENERGY DENSITY PHYSICS, 36, 100773-1-100773-6, 202008
  57. Monte Carlo particle collision model for qualitative analysis of neutron energy spectra from anisotropic inertial confinement fusion, HIGH ENERGY DENSITY PHYSICS, 36, 100803-1-100803-5, 202008
  58. Intensification of laser-produced relativistic electron beam using converging magnetic fields for ignition in fast ignition laser fusion, HIGH ENERGY DENSITY PHYSICS, 36, 100841-1-100841-6, 202008
  59. Experimental study on the onset of flame acceleration due to cellular instabilities, JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES, 60, 264-268, 201907
  60. Enhanced heat transport in ablation plasma under transverse magnetic field by upper hybrid resonance heating, HIGH ENERGY DENSITY PHYSICS, 30, 8-12, 201901
  61. Computational study of magnetic field compression by laser-driven implosion, NUCLEAR FUSION, 55(9), 201509
  62. ★, Control of an electron beam using strong magnetic field for efficient core heating in fast ignition, NUCLEAR FUSION, 55(5), 201505
  63. Kinetic effects and nonlinear heating in intense x-ray-laser-produced carbon plasmas, PHYSICAL REVIEW E, 90(5), 201411
  64. Advanced Simulation Techniques of Particle-in-Cell Code for High Density Relativistic Plasma 6. Radiation Transport and Nuclear Reaction Models for Particle Simulations, J. Plasma Fusion Res., 90(8), 500-504, 201408
  65. Laser-plasma interactions for fast ignition, NUCLEAR FUSION, 54(5), 201405
  66. Impact ignition as a track to laser fusion, NUCLEAR FUSION, 54(5), 201405
  67. Hot electron spectra in hole-cone shell targets and a new proposal of the target for fast ignition in laser fusion, Physica Scripta, 2014, 201405
  68. Theory of fast electron transport for fast ignition, Nucl. Fusion, 54, 054003, 201405
  69. Advanced Simulation Techniques of Particle-in-Cell Code for High Density Relativistic Plasma 1. Introduction, J. Plasma Fusion Res., 90(5), 296-298, 201405
  70. Present status of fast ignition realization experiment and inertial fusion energy development, NUCLEAR FUSION, 53(10), 201310
  71. Quantitative measurement of hard X-ray spectra from laser-driven fast ignition plasma, HIGH ENERGY DENSITY PHYSICS, 9(3), 435-438, 201309
  72. Effects of laser profiles on fast electron generation under the same laser energy, LASER AND PARTICLE BEAMS, 31(3), 371-377, 201309
  73. Enhancement of Energy Coupling Efficiency in Fast-Ignition Laser Fusion by Electron Beam Guiding with Self-Generated Magnetic Field, J. Plasma Fusion Res., 89(7), 456-461, 201307
  74. Computational study of strong magnetic field generation in a nonspherical, cone-guided implosion, NUCLEAR FUSION, 53(6), 201306
  75. Analysis of Laser Wavelength and Energy Dependences of the Impulse in a Magnetic Thrust Chamber System for a Laser Fusion Rocket, TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 56(3), 170-172, 201305
  76. High-energy-density plasmas generation on GEKKO-LFEX laser facility for fast-ignition laser fusion studies and laboratory astrophysics, PLASMA PHYSICS AND CONTROLLED FUSION, 54(12), 201212
  77. Detonation propagation from a cylindrical tube into a diverging cone, JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY, 15(3), 2020
  78. Reduction of air flow rate for pulse-detonation-turbine-engine operation by water-droplet injection, JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY, 11(2), 16-00322, 2016
  79. The Measurement of Plasma Structure in a Magnetic Thrust Chamber, PLASMA AND FUSION RESEARCH, 11, 2016
  80. Design of a cone target for fast ignition, EPJ Web of Conferences, 59, 03009, 2013
  81. Effects of laser temporal profile on fast electron characteristics, EPJ Web of Conferences 59, 17004, 2013
  82. Efficient multi-keV X-ray generation from high-contrast laser plasma interaction, EPJ Web of Conferences 59, 18003, 2013
  83. Efficient multi-keV X-ray generation from high-contrast laser plasma interaction, EPJ Web of Conferences 59, 01008, 2013
  84. Fast electron beam guiding for effective core heating, EPJ Web of Conferences 59, 03010 , 2013
  85. Suppression effects of Weibel instability for fast electron divergences, EPJ Web of Conferences 59, 17016, 2013
  86. Thomson scattering measurement of laser-produced plasma in a magnetic thrust chamber

Invited Lecture, Oral Presentation, Poster Presentation

  1. Ignition and Burn DYnamics under Kilo-Tesla-Class Magnetic Fields in Fast Ignition Laser Fusion, Tomoyuki JOHZAKI, Naoki Matsumura, Wookyung KIM, Takuma ENDO, Naoki Matsumura, Wookyung KIM, Takuma ENDO, The Physical Society of Japan 2023 Annual (78th) Meeting, 2023/09/18, Without Invitation, Japanese, The Physical Society of Japan, Aobayama Campus, Tohoku University, Sendai, Miyagi, Japan
  2. Effects of Nuclear Elastic Scattering on Ignition and Burn Dynamics of DT Fuel in Fast Ignition Laser Fusion, Souta HIROSE, Tomoyuki JOHZAKI, Takuma ENDO, Wookyung KIM, Souta HIROSE, Takuma ENDO, Wookyung KIM, The Physical Society of Japan 2023 Annual (78th) Meeting, 2023/09/18, Without Invitation, Japanese, The Physical Society of Japan, Aobayama Campus, Tohoku University, Sendai, Miyagi, Japan
  3. Potential of Kilo-Tesla-Class Magnetic Field to Control Ignition and Burn Characteristics in Fast Ignition Laser Fusion, Tomoyuki JOHZAKI, Naoki MATSUMURA, Yasuyuki KIMURA, Wookyung KIM, Takuma ENDO, Naoki MATSUMURA, Yasuyuki KIMURA, Wookyung KIM, Takuma ENDO, International Conference on Inertial Fusion Sciences and Applications 2023, 2023/04/17, With Invitation, Japanese, IFSA2023, Hilton Denver Inverness, Englewood, CO 80112, USA
  4. Magnetic Field Effects on Ignition and Burn Dynamics of Fast Ignition, Tomoyuki JOHZAKI, Naoki MATSUMURA, Wookyung KIM, Takuma ENDO, Naoki MATSUMURA, Wookyung KIM, Takuma ENDO, International conference on high energy density science 2023, 2023/04/17, Without Invitation, English, HEDS2023, Yokohama, Kanagawa, Japan
  5. Magnetic Field Effects on Ignition and Burn Dynamics of Fast Ignition Target, Tomoyuki JOHZAKI, Naoki MATSUMURA, Wookyung KIM, Takuma ENDO, JIFT workshop on Theory and simulation on the high field and high energy density physics, 2023/04/17, Without Invitation, English, Joint Institute for Fusion Theory, Yokohama, Kanagawa, Japan
  6. Laser Parameter Dependence of Water-Window X-ray Emitted from Laser-Produced Au Plasma, Chihiro KUMEDA, Tomoyuki JOHZAKI, Takuma ENDO, Wookyung KIM, Shinichi NAMBA, Atsushi SUNAHARA, The 31st International Toki Conference on Plasma and Fusion Research, 2022/11/08, Without Invitation, English, National Institute for Fusion Science, Online
  7. Effect of kilo-tesla magnetic field on ignition and burn dynamics in fast ignition laser fusion, Naoki MATSUMURA, Tomoyuki JOHZAKI, Wookyung KIM, Takuma ENDO, The 31st International Toki Conference on Plasma and Fusion Research, 2022/11/08, Without Invitation, English, National Institute for Fusion Science, Online
  8. Burn Fraction Dependence on Imploded Fuel Density Profile in Fast Ignition Laser Fusion, Tomoyuki JOHZAKI, Hideo NAGATOMO, Shinsuke FUJIOKA, The Physical Society of Japan, 2023 Spring Meeting, 2023/03/25, Without Invitation, Japanese, The Physical Society of Japan, Online
  9. alpha-particle stopping power by degenerate electrons considering scattering restriction, Tomoyuki JOHZAKI, Ryota ISHIDA, Takuma ENDO, Wookyung KIM, Yasuyuki NAKAO, JPS 2022 Autumn Meeting, The Physical Society of Japan, 2022/09/13, Without Invitation, Japanese, The Physical Society of Japan, Ookayama Campus, Tokyo Institute of Technology
  10. Scenario for fusion ignition and burning in fast ignition laser fusion, Tomoyuki JOHZAKI, The 43rd Annual Meeting of The Laser Society of Japan, 2023/01/19, With Invitation, Japanese, The laser Society of Japan, WINC AICHI, Japan
  11. Nuclear Fusion Burn Dynamics in Laser Fusion Plasmas, Tomoyuki Johzaki, 2021/11/25, With Invitation, Japanese
  12. Radiation-hydro + Ray-trace simulations for development of laser-plasma X-ray source, Tomoyuki JOHZAKI, S. Namba, A. Sunahara, C. John, T. Morishita, The Physical Society of Japan 2020 Autumn Meeting, 2020/09/10, Without Invitation, Japanese, The Physical Society of Japan, online
  13. Efficient Heating of Dense Material by Laser-Produced Electron Beam Using Converging Magnetic Fields, Tomoyuki JOHZAKI, S. TakedaA, M. Hino, W. Kim, T. Endo, S. Fujioka, Y. Sentoku, H. Nagatomo and A. Sunahara, 2020/03/16, Without Invitation, Japanese, online
  14. Progresses of integrated Fast Ignition experiments and target design toward ignition, Tomoyuki JOHZAKI, The 36th Annual meeting of the Japan Society of Plasma Science and Nuclear Fusion Research, 2019/12/02, With Invitation, Japanese, The Japan Society of Plasma Science and Nuclear Fusion Research
  15. Core heating with relativistic electron beam collimated by converging magnetic fields, Tomoyuki JOHZAKI, S. Takeda, M. Hino, W. Kim, T. Endo,S. Fujioka, Y. Sentoku, H. Nagatomo, A. Sunahara, 2019 JIFT Japan-US Workshop on Theory and Simulations of High Energy Density Physics with Extreme Fields, 2019/09/21, Without Invitation, Yasuhiko Sentoku (Osaka Univ.) and A.Arefiev (UCSD), Osaka, Japan
  16. Intensification of Laser-produced Relativistic Electron Beam Using Converging Magnetic Fields for Ignition in Fast Ignition Laser Fusion, Tomoyuki JOHZAKI, Shijuro Takeda, Masaya Hino, Wookyung Kim, Takuma Endo, Shinsuke Fujioka, Yasuhiko Sentoku, Hideo Nagatomo, Atsushi Sunahara, 11th international Conference on Inertial Fusion Sciences and Applications, 2019/09/26, With Invitation, English, Ryosuke Kodama (Japan), John Edwards (USA), and Sylvie Jacquemot (France), Osaka, Japan
  17. Ignition requirement for HBRPA C6+ beam driven fast ignition, T. Johzaki, Y. Kai, K. Tsuchikawa, S. Hieda, W. Kim, T. Endo, Y. Sentoku, A. Sunahara, The 46th European Physical Society Conference on Plasma Physics, 2019/07/09, Without Invitation, English, European Physical Society, Milan, Italy
  18. Recent Topics on ICF Theory & Simulation, T. Johzaki, Workshop on Status and Prospects of High Energy Density Science by Giant Laser, 2014/06/03, With Invitation, Japanese, Gakushi Kaikan, Tokyo, Japan
  19. Numerical Modeling of Radiative Kinetic Plasmas, T. Johzaki, T. Johzaki, Y. Sentoku, R. Mancini, R. Rolye, I. Paraschiv, Plasma SImulation symposium 2014, 2014/09/11, With Invitation, English, NIFS, NIFS, Toki, Gifu, Japan
  20. Electron beam generation and transport in kT-class longitudinal magnetic fields, T. Johzaki, T. Johzaki, Y. Sentoku, H. Nagatomo, A. Sunahara, H. Sakagami, K. Mima, S. Fujioka, H. Shiraga and FIREX project group, 13th International Workshop on the Fast Ignition of Fusion Targets, 2014/09/18, Without Invitation, English, Co-chairs Peter Norreys, University of Oxford, UK - European Co-chair Prav Patel, Lawerence Livermore National Laboratory, US - US Co-chair Hiroyuki Shiraga, Osaka University, Japan - Asia Pacific Co-chair, Queen's College, Oxford, UK
  21. Fast Ignition by Photon-Pressure Accelerated Ion Beam, T. Johzaki, T. Johzaki, Y. Sentoku, A. Sunahara, T. Morikawa, T. Endo, 56th Annual Meeting of the APS Division of Plasma Physics, 2014/10/29, Without Invitation, English, American Physical Society, New Orleans Marriott, New Orleans, LA, USA
  22. Numerical Modeling of Radiative Kinetic Plasmas, T. Johzaki, T. Johzaki, Y. Sentoku, R. Mancini, R.C. Rolye, I. Paraschiv, S. Sunahara, 2014 US-Japan JIFT Workshop on Progress in kinetic plasma simulations, 2014/10/31, Without Invitation, English, Organizers: Alexey Arefiev Institute for Fusion Studies, The University of Texas at Austin, USA Hiroaki Ohtani National Institute for Fusion Science, Japan, New Orleans Marriott, New Orleans, LA, USA
  23. Electron beam generation and transport in kT-class longitudinal magnetic fields, T. Johzaki, S. Fujioka, Y. Arikawa, A. MoraceH. Nagatomo, H. Shiraga, H. Azechi, A. Sunahara, Y. Sentoku, H. Sakagami, K. Mima, T. Taguchi, J. Honrubia, J. J. Santos, 2014 US-Japan JIFT Workshop on fast ignition and relevant high energy-density physics, 2014/11/03, Without Invitation, English, Organizers: Alex Arefiev (IFS, US), Atsushi Sunahara (ILT, Japan), Juan Fernandez (LANL, US), Farhat Beg (UCSD, US)., University of Texas at Austin, Austin., TX, USA
  24. kT-class Magnetic Fields in Laser Fusion Research, T. Johzaki, Plasma Conference 2014, 2014/11/19, With Invitation, English, The Physical Society of Japan, The Japan Society of Plasma Science and Nuclear Fusion Research, The Japan Society of Applied Physics, Toki Messe, Niigata, Japan
  25. 光圧加速イオンビームによる高速点火, T. Johzaki, Y. Sentoku, A. Sunahara, T. Morikawa, T. Endo, Plasma Conference 2014, 2014/11/20, Without Invitation, Japanese, The Physical Society of Japan, The Japan Society of Plasma Science and Nuclear Fusion Research, The Japan Society of Applied Physics, Toki Messe, Niigata, Japan
  26. レーザー加速イオンビームによるコア加熱効率の向上, T. JohzakiA, A. Sunahara, H. Nagatomo, Y. Kai, T. Endo, A. Yogo, Y. Arikawa, A. Morace, S. Kojima, S. Sakata, T. Nagai, Z. Zhang, Y. Abe, T. Ikenouchi, T. Utsugi, S.H. Lee, T. Gawa, Y. Taguchi, T. Ozaki, S. Tosaki, H. Nishimura, K. Yamanouchi, T. Norimatsu, S. Fujioka, H. Shiraga, H. Azechi, FIREX project team, JPS 70th Annual Meeting(2015), 2015/03/24, Without Invitation, Japanese, The Japan Physical Society, Waseda University, Tokyo, Japan
  27. Electron Beam Guiding by kT-class Magnetic Fields in Fast Ignition, T. Johzaki, US-Japan Workshop on High Energy Density Physics, 2015/09/01, Without Invitation, English, Prof. Farhat Beg (UCSD) & K. A. Tanaka (Osaka Univ.), San Diego, CA, USA
  28. Electron Beam Guiding by External Magnetic Fields in Imploded Fuel Plasma, T. Johzaki, T. Johzaki, Y. Sentoku, H. Nagatomo, A. Sunahara, H. Sakagami, S. Fujioka, H. Shiraga,T. Endo and FIREX project group, Ninth International Conference on Inertial Fusion Sciences and Applications, IFSA2015, 2015/09/25, With Invitation, English, 2015 IFSA Committee, Seattle, Washington, USA
  29. Magnetic Guiding of Electron Beam in Imploded Spherical Solid Targets, T. Johzaki, T. Johzaki,Y. Sentoku, H. Nagatomo, A. Sunahara, H. Sakagami, S. Fujioka,H. Shiraga,T. Endo and FIREX project group, 57th Annual Meeting of the APS Division of Plasma Physics, 2015/11/20, Without Invitation, English, American Physical Society (APS), Savannah, Georgia, USA
  30. Japan-US Workshop on Theory and Simulation on the high energy density physics related to the inertial confinement fusion, T. Johzaki, T. Johzaki,Y. Sentoku, H. Nagatomo, A. Sunahara, H. Sakagami, S. Fujioka,H. Shiraga,T. Endo and FIREX project group, Japan-US Workshop on Theory and Simulation on the high energy density physics related to the inertial confinement fusion, 2016/03/24, Without Invitation, English, A. Sunahara (ILT), Manshoukaku, Fukui
  31. レーザー点火における透過光再入射の効果, Y. Takenaka, Y. Takenaka, Y. Sako, T. Honda, T. Johzaki, S. Namba, T. Endo, 2015/07/03, Without Invitation, Japanese
  32. Re-injection of Transmitted Light into Laser-Induced Gaseous Breakdown, T. Endo, T. Endo, Y. Takenaka, Y. Sako, T. Honda, T. Johzaki, S. Namba, 3rd Laser Ignition Conference, 2015/04/30, Without Invitation, English, Laser Ignition Conference, Argonne National Laboratory, Argonne, Illinois United States
  33. Relativistic Laser-Plasma Interactions under kilo-Tesla-class Magnetic Fields (1), T. Johzaki, Y. Kai, S. Takeda, T. Endo, Y. Sentoku, M. Hata, T. Taguchi, K. Mima, The physical society of Japan, 72th annual meeting, 2017/03/19, Without Invitation, Japanese, The physical society of japan, Toyonaka Campus, Osaka univeristy
  34. Simulation study on core heating properties of cone-attached solid ball targets by laser-produced electron beam I, T. Johzaki, H. Nagatomo, A. Sunahara, Y. Sentoku, H. Sakagami, T. Taguchi, S. Fujioka, H. Shiraga, FIREX project group, The Physical Society of Japan, 2016 Autumn Meeting, 2016/09/13, Without Invitation, Japanese, The Physical Society of Japan, Kadoma Campus, Kanazawa University
  35. Laser Intensity Dependence of One-Dimensional Structure of Laser-Driven Detonation, T. Naya, T. Johzaki, T. Endo, F. Nakajima, A. Sunahara, Y. Ogino, N. Ohnishi, H. Nagatomo, Symposium on Shock Waves in Japan, 2017/03/10, Without Invitation, Japanese, Werk-Yokosuka
  36. Ignition condition for electron-beam-driven fast ignition laser fusion (1), T. Johzaki, H. Nagatomo, A. Sunahara, Y. Sentoku, Y. Kai, T. Endo, 33rd Annual meeting of Japan Society of Plasma Science and Nuclear Fusion Research, 2016/11/29, Without Invitation, Japanese, The Japan Society of Plasma Science and Nuclear Fusion Research, Aobayama Campus, Tohoku University
  37. Simulation study of core heating properties for recent FIREX-I experiments, T. Johzaki, Y. Kai, T. Endo, H. Nagatomo, A. Sunahara, Y. Sentoku, H. Sakagami, T. Taguchi, S. Fujioka, H. Shiraga, FIREX project, US-Japan Workshop on laser-plasma interactions and high energy-density physics, 2016/11/05, Without Invitation, English, San Jose Marriot, CA, USA
  38. Integrated simulation of magnetic-field-assist fast ignition laser fusion, T. Johzaki, 43rd European Physical Society Conference on Plasma Physics, 2016/07/06, With Invitation, English, European Physical Society, Leuven, Belgium
  39. Integrated Simulation of Imploded Core Heating for the FIREX project, T. Johzaki, H. Nagatomo, Y. Sentoku, H. Sakagami, A. Sunahara, S. Fujioka, A. Yogo, H. Shiraga, H. Azechi, T. Endo and FIREX project group, 14th International workshop on fast ignition and high field physics with high power lasers, (CLES2016 in OPIC2016), 2016/05/19, With Invitation, English, Chari; Hiroshi Azechi (Osaka University, Japan), Pacifico-Yokohama, Yokohama Japan
  40. A comparative study of spark ignitions induced by high-power laser and by high-voltage electrodes, Y. Takenaka, Y. Sako, K. Mikami, T. Johzaki, S. Namba, D. Shimokuri, and T. Endo, The 4th Laser Ignition Conference 2016, LIC16 (OPIC2016), 2016/05/19, Without Invitation, English, Pacifico-Yokohama, Yokohama, Japan
  41. Integrated Simulation for Magnetized Fast Ignition Laser Fusion, T. Johzaki, 10th West Lake International Symposium on Magnetic Fusion and 12th Asia Pacific Plasma Theory Conference, 2016/05/12, With Invitation, English, Division of Plasma Physics Association of Asia Pacific Physical Societies, Hangzhou, China
  42. Core heating dynamics in magnetized fast ignition, Tomoyuki JOHZAKI, Hideo NAGATOMO, Yasuhiko SENTOKU, Atsushi SUNAHARA, Toshihiro TAGUCHI, Hitoshi SAKAGAMI, Shinsuke FUJIOKA, Shohei SAKATA, Seungho LEE, Hiroyuki SHIRAGA and FIREX project, 10th International Conference on Inertial Fusion Sciences and Applications, 2017/09/12, With Invitation, English, IFSA2017 Committes IFSA Co-Chairs John Edwards, LLNL (CA, USA) Ryosuke Kodama, ILE, Osaka University (Japan) Patrick Mora, ILP (France) ————————————————————- Organizing Co-Chairs Sylvie Jacquemot, LULI, ILP (France) Hiroyuki Shiraga, ILE, Osaka University (Japan) Richard Town, LLNL (CA, USA), Saint Malo, France
  43. Demonstration of Efficient Core Heating of Magnetized Fast Ignition in FIREX project, Tomoyuki JOHZAKI, 59th Annual Meeting of the APS Division of Plasma Physics, 2017/10/26, With Invitation, English, American Physical Society, Milwaukee, Wisconsin, USA
  44. Demonstration of Effective Core Heating in Magnetized Fast Ignition Laser Fusion and Prospect for Ignition, Tomoyuki JOHZAKI, Plasma Conference 2017, 2017/11/23, With Invitation, Japanese, Himeji, Hyogo, Japan
  45. Laser Intensity and Gas Pressure Dependences of Propagation Property of Laser-Driven Detonation, Fumiaki Nakajima, Tomoyuki Johzaki, Takuma Endo, Tsukasa Naya, Atsushi Sunahara, Yousuke Ogino, Naofumi Onishi, Hideo Nagatomo, Plasma Conference 2017, 2017/11/21, Without Invitation, Japanese, ・公益社団法人 応用物理学会 プラズマエレクトロニクス分科会(幹事学会) ・一般社団法人 プラズマ・核融合学会 ・一般社団法人 日本物理学会・領域2 ・日本学術振興会 プラズマ材料科学第153委員会, Himeji, Hyogo, Japan
  46. Magnetic Field Guiding of Relativistic Electron Beam Generated by Ignition-Class Ultra-Intense Laser, Shijuro Takeda, Tomoyuki Johzaki, Takuma Endo, Wookyung Kim, Yasuhiko Sentoku, Shinsuke Fujioka, Plasma Conference 2017, 2017/11/22, Without Invitation, Japanese, ・公益社団法人 応用物理学会 プラズマエレクトロニクス分科会(幹事学会) ・一般社団法人 プラズマ・核融合学会 ・一般社団法人 日本物理学会・領域2 ・日本学術振興会 プラズマ材料科学第153委員会, Himeji, Hyogo, Japan
  47. Integrated Simulation on RPA C6+ beam driven Fast Ignition Laser Fusion, Tomoyuki JOHZAKI, Y. Kai, K. Tsuchikawa, S. Hieda, W. Kim, T. Endo, Y. Sentoku and A. Sunahara, 73rd Annual meeting of the Physical society of Japan, 2018/03/24, Without Invitation, Japanese, The Physical Society of Japan, Noda, Chiba, Japan
  48. Core heating dynamics in magnetized fast ignition, Tomoyuki JOHZAKI, Yasuhiko Sentoku, Atsushi Sunahara, Toshihiro Taguchi, Hitoshi Sakagami, Shinsuke Fujioka, Shohei Sakata, Seungho Lee, Hiroyuki Shiraga and FIREX project, Japan Technical Meeting on HEDS, 2017/09/26, Without Invitation, English, Shinsuke Fujioka (ILE, Osaka University) Yasuhiko Sentoku (ILE, Osaka University), Garre vineyard & winery, Livermore, CA 94550 USA
  49. Ignition requirement for HBRPA C6+ beam driven fast ignition, Tomoyuki JOHZAKI, Y. Kai, K. Tsuchikawa, S. Hieda, W. Kim, T. Endo, Y. SentokuA, A. Sunahara, JIFT Japan-US workshop on Theory and simulation on the high field and high energy density physics, 2018/03/27, Without Invitation, English, Yasuhiko Sentoku(ILE, Osaka Univ.), Alex Arefiev (UCSD, USA), Hiroshima, Japan
  50. Core heating integrated simulations for self-ignition realization in fast ignition, Tomoyuki JOHZAKI, H. Shiraga, H. Sakagami, Y. Sentoku, H. Nagatomo, M. Hata, T. Asahina, T. Taguchi, S. Takeda, OPTO2018 Symposium on Photon and Beam Science, 2018/05/09, Without Invitation, Japanese
  51. Relaxation of ignition condition by magnetic guiding of relativistic electron beam I, Tomoyuki Johzaki, S. Takeda, M. Horio, W. Kimu, T. Endo, A. Sunahara, The Physical Society of Japan, 2018 Autumn Meeting, 2018/09/11, Without Invitation, Japanese, The Physical Society of Japan, Kyotanabe Campus, Doshisha Univ.
  52. Ignition properties of RPA C6+ beam driven Fast Ignition Laser Fusion, Tomoyuki Johzaki, Y. Kai, K. Tshuchikawa, S. Hieda, W. Kim, T. Endo, Y. Sentoku, A. Sunahara, The Physical Society of Japan, 2018 Autumn Meeting, 2018/09/09, Without Invitation, Japanese, The Physical Society of Japan, Kyotanabe Campus, Doshisha Univ.
  53. Transport Properties of Relativistic Electron Beam under Converging Magnetic Fields, Tomoyuki Johzaki, S. Takeda, M. Hino, W. Kim, T. Endo, Y. Sentoku, S. Fujioka, and A. Sunahara, The Physical Society of Japan, 74th annual meeting, 2019/03/15, Without Invitation, Japanese, The Physical Society of Japan, Ito Campus, Kyushu Univ.
  54. Simulation study on driver beam generation for fast ignition laser fusion by relativistic laser plasma interactions, Tomoyuki Johzaki, Y. Kai, K. Tsuchikawa, S. Hieda, W. Kimu, T. Endo, Y. Sentoku, A. Sunahara, Plasma Simulator Symposium 2018 (PSS 2018), 2018/09/13, Without Invitation, Japanese, National Institute for Fusion Science, National Institute for Fusion Science
  55. Magnetic field guiding of electron beam for reduction of ignition requirement, Tomoyuki Johzaki, M. Horio, S. Takeda, W. Kim, T. Endo, H. Nagatomo, Y. Sentoku, S. Fujioka, A. Sunahara, 2018 US-JAPAN Workshop on Theory and Simulations of High-Field and High Energy Density Physics, 2018/11/03, Without Invitation, English, Yasuhiko Sentoku (Osaka Univ.) and A.Arefiev (UCSD), Hilton Portland Downtown, Forum Suite, Portland, OR USA
  56. Magnetic field guiding of electron beam for reduction of ignition requirement in fast ignition laser fusion, Tomoyuki Johzaki, M. Horio, S. Takeda, W. Kim, T. Endo, H. Nagatomo, Y. Sentoku, A. Sunahara, 60th Annual Meeting of the American Physical Society Division of Plasma Physics, 2018/11/05, Without Invitation, English, American Physical Society, Portland, OR, USA
  57. Integrated simulation for core heating in laser fusion magnetized fast ignition, Tomoyuki Johzaki, H. Nagatomo, Y. Sentoku, S. Fujioka, S. Sakara, A. Sunahara, The Japan Society of Plasma Science and Nuclear Fusion Research 35th Annual meeting, 2018/12/03, Without Invitation, Japanese, The Japan Society of Plasma Science and Nuclear Fusion Research, Osaka Univ. Suita Campus

Awards

  1. 2022/05/31, Distinguished Paper Award, Review Paper Section, The Laser Society of Japan, Scenario for Ignition and Burning in Fast Ignition Laser Fusion
  2. 2017/11/21, 22nd JSPF Award for Notable Contribution to Technology, The Japan Society of Plasma Science and Nuclear Fusion Research
  3. 2018/08/17, 12th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions Best Paper Award, ISHPMIE Awards Committee Chair

External Funds

Acceptance Results of Competitive Funds

  1. KAKENHI, 2014, 2016
  2. KAKENHI, 2013, 2015
  3. KAKENHI, 2013, 2015
  4. KAKENHI, Optimization of Driver Particle for Fast Ignition, 2010, 2012
  5. KAKENHI, Experimental Demonstration of Magnetic Thrust Chamber for a Laser Fusion Rocket, 2009, 2011
  6. KAKENHI, Simulation study on fusion burn wave propagation in dense plasmas, 2008, 2010
  7. KAKENHI, Simulation Model Development for High Energy Density Physics, 2007, 2010
  8. KAKENHI, X-ray polarization spectroscopy for the energy transport in ultra-short, high-intensity laser produced plasma, 2006, 2008
  9. KAKENHI, 2005, 2006
  10. KAKENHI, 2013, 2015
  11. KAKENHI, 2015, 2018
  12. KAKENHI(Grant-in-Aid for Scientific Research (B)), Establishment of efficient core heating by Resistive field guiding of fast electron beam in fast ignition laser fusion, 2020, 2022

Social Activities

Organizing Academic Conferences, etc.

  1. 2015/01, 2015/01
  2. 2016/01, 2016/01
  3. Workshop on collaborative code development for laser plasma science, 2018/01, 2018/01
  4. Workshop on collaborative code development for laser plasma science, 2017/01, 2017/01
  5. 2019/01, 2019/01

Other Social Contributions

  1. JSPS 57th Plasma summer school for young scientists, First step of laser fusion ~ ni, The Japan Society of Plasma Science and Nuclear Fusion Research (JSPS), 2018/08/29, 2018/08/31, Lecturer, Seminar or workshop, Graduate students

History as Peer Reviews of Academic Papers

  1. 2021, Plasma Physics and Controlled Fusion, Others, 2