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213 results on '"Johzaki, Tomoyuki"'

1. Effect of irradiation uniformity on quasi-isentropic shock compression of solid spheres

Author

Takizawa, Ryunosuke, Sakagami, Hitoshi, Nagatomo, Hideo, Arikawa, Yasunobu, Morita, Hiroki, Dun, Jinyuan, Tsuido, Takumi, Karaki, Yuga, Matsubara, Hiroki, Law, King Fai Farley, Katagiri, Kento, Ozaki, Norimasa, Hironaka, Yoichiro, Shigemori, Keisuke, Abe, Yuki, Habara, Hideaki, Kuramitsu, Yasuhiro, Johzaki, Tomoyuki, Nakai, Mitsuo, Shiraga, Hiroyuki, Azechi, Hiroshi, Kodama, Ryosuke, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Published
2024
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3. Peta-Pascal Pressure Driven by Fast Isochoric Heating with Multi-Picosecond Intense Laser Pulse

Author

Matsuo, Kazuki, Higashi, Naoki, Iwata, Natsumi, Sakata, Shohei, Lee, Seungho, Johzaki, Tomoyuki, Sawada, Hiroshi, Iwasa, Yuki, Law, King Fai Farley, Morita, Hiroki, Ochiai, Yugo, Kojima, Sadaoki, Abe, Yuki, Hata, Masayasu, Sano, Takayoshi, Nagatomo, Hideo, Sunahara, Atsushi, Morace, Alessio, Yogo, Akifumi, Nakai, Mitsuo, Sakagami, Hitoshi, Ozaki, Tetsuo, Yamanoi, Kohei, Norimatsu, Takayoshi, Nakata, Yoshiki, Tokita, Shigeki, Kawanaka, Junji, Shiraga, Hiroyuki, Mima, Kunioki, Azechi, Hiroshi, Kodama, Ryosuke, Arikawa, Yasunobu, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Subjects
Physics - Plasma Physics
Abstract

Fast isochoric laser heating is a scheme to heat a matter with relativistic-intensity ($>$ 10$^{18}$ W/cm$^2$) laser pulse or X-ray free electron laser pulse. The fast isochoric laser heating has been studied for creating efficiently ultra-high-energy-density (UHED) state. We demonstrate an fast isochoric heating of an imploded dense plasma using a multi-picosecond kJ-class petawatt laser with an assistance of externally applied kilo-tesla magnetic fields for guiding fast electrons to the dense plasma.The UHED state with 2.2 Peta-Pascal is achieved experimentally with 4.6 kJ of total laser energy that is one order of magnitude lower than the energy used in the conventional implosion scheme. A two-dimensional particle-in-cell simulation reveals that diffusive heating from a laser-plasma interaction zone to the dense plasma plays an essential role to the efficient creation of the UHED state., Comment: 8 pages, 4 figures, 1 table

Published
2019
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4. Super-ponderomotive electron acceleration in blowout plasma heated by multi-picosecond relativistic intensity laser pulse

Author

Kojima, Sadaoki, Hata, Masayasu, Iwata, Natsumi, Arikawa, Yasunobu, Morace, Alessio, Sakata, Shouhei, Lee, Seungho, Matsuo, Kazuki, Law, King Fai Farley, Morita, Hiroki, Ochiai, Yugo, Yogo, Akifumi, Nagatomo, Hideo, Ozaki, Tetsuo, Johzaki, Tomoyuki, Sunahara, Atsushi, Sakagami, Hitoshi, Zhang, Zhe, Tosaki, Shota, Abe, Yuki, Kawanaka, Junji, Tokita, Shigeki, Nakai, Mitsuo, Nishimura, Hiroaki, Shiraga, Hiroyuki, Azechi, Hiroshi, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Subjects
Physics - Plasma Physics
Abstract

The dependence of the mean kinetic energy of laser-accelerated electrons on the laser intensity, so-called ponderomotive scaling, was derived theoretically with consideration of the motion of a single electron in oscillating laser fields. This scaling explains well the experimental results obtained with high-intensity pulses and durations shorter than a picosecond; however, this scaling is no longer applicable to the multi-picosecond (multi-ps) facility experiments. Here, we experimentally clarified the generation of the super-ponderomotive-relativistic electrons (SP-REs) through multi-ps relativistic laser-plasma interactions using prepulse-free LFEX laser pulses that were realized using a plasma mirror (PM). The SP-REs are produced with direct laser acceleration assisted by the self-generated quasi-static electric field and with loop-injected direct acceleration by the self- generated quasi-static magnetic field, which grow in a blowout plasma heated by a multi-ps laser pulse. Finally, we theoretically derive the threshold pulse duration to boost the acceleration of REs, which provides an important insight into the determination of laser pulse duration at kilojoule- petawatt laser facilities.

Published
2018

5. Magnetized Fast Isochoric Laser Heating for Efficient Creation of Ultra-High-Energy-Density States

Author

Sakata, Shohei, Lee, Seungho, Johzaki, Tomoyuki, Sawada, Hiroshi, Iwasa, Yuki, Morita, Hiroki, Matsuo, Kazuki, Law, King Fai Farley, Yao, Akira, Hata, Masayasu, Sunahara, Atsushi, Kojima, Sadaoki, Abe, Yuki, Kishimoto, Hidetaka, Syuhada, Aneez, Shiroto, Takashi, Morace, Alessio, Yogo, Akifumi, Iwata, Natsumi, Nakai, Mitsuo, Sakagami, Hitoshi, Ozaki, Tetsuo, Yamanoi, Kohei, Norimatsu, Takayoshi, Nakata, Yoshiki, Tokita, Shigeki, Miyanaga, Noriaki, Kawanaka, Junji, Shiraga, Hiroyuki, Mima, Kunioki, Nishimura, Hiroaki, Bailly-Grandvaux, Mathieu, Santos, Joao Jorge, Nagatomo, Hideo, Azechi, Hiroshi, Kodama, Ryosuke, Arikawa, Yasunobu, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Subjects
Physics - Plasma Physics
Abstract

The quest for the inertial confinement fusion (ICF) ignition is a grand challenge, as exemplified by extraordinary large laser facilities. Fast isochoric heating of a pre-compressed plasma core with a high-intensity short-pulse laser is an attractive and alternative approach to create ultra-high-energy-density states like those found in ICF ignition sparks. This avoids the ignition quench caused by the hot spark mixing with the surrounding cold fuel, which is the crucial problem of the currently pursued ignition scheme. High-intensity lasers efficiently produce relativistic electron beams (REB). A part of the REB kinetic energy is deposited in the core, and then the heated region becomes the hot spark to trigger the ignition. However, only a small portion of the REB collides with the core because of its large divergence. Here we have demonstrated enhanced laser-to-core energy coupling with the magnetized fast isochoric heating. The method employs a kilo-tesla-level magnetic field that is applied to the transport region from the REB generation point to the core which results in guiding the REB along the magnetic field lines to the core. 7.7 $\pm$ 1.3 % of the maximum coupling was achieved even with a relatively small radial area density core ($\rho R$ $\sim$ 0.1 g/cm$^2$). The guided REB transport was clearly visualized in a pre-compressed core by using Cu-$K_\alpha$ imaging technique. A simplified model coupled with the comprehensive diagnostics yields 6.2\% of the coupling that agrees fairly with the measured coupling. This model also reveals that an ignition-scale areal density core ($\rho R$ $\sim$ 0.4 g/cm$^2$) leads to much higher laser-to-core coupling ($>$ 15%), this is much higher than that achieved by the current scheme.

Published
2017
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6. Kinetic modeling of x-ray laser-driven solid Al plasmas via particle-in-cell simulation

Author

Royle, Ryan, Sentoku, Yasuhiko, Mancini, Roberto C., Paraschiv, Ioana, and Johzaki, Tomoyuki

Subjects
Physics - Plasma Physics
Abstract

Solid-density plasmas driven by intense x-ray free-electron laser (XFEL) radiation are seeded by sources of non-thermal photoelectrons and Auger electrons that ionize and heat the target via collisions. Simulation codes that are commonly used to model such plasmas, such as collisional-radiative (CR) codes, typically assume a Maxwellian distribution and thus instantaneous thermalization of the source electrons. In this study, we present a detailed description and initial applications of a collisional particle-in-cell code, PICLS, that has been extended with a self-consistent radiation transport model and Monte-Carlo models for photoionization and KLL Auger ionization, enabling the fully kinetic simulation of XFEL-driven plasmas. The code is used to simulate two experiments previously performed at the Linac Coherent Light Source investigating XFEL-driven solid-density Al plasmas. It is shown that PICLS-simulated pulse transmissions using the Ecker-Kr\"oll continuum-lowering model agree much better with measurements than do simulations using the Stewart-Pyatt model. Good quantitative agreement is also found between the time-dependent PICLS results and those of analogous simulations by the CR code SCFLY, which was used in the analysis of the experiments to accurately reproduce the observed K{\alpha} emissions and pulse transmissions. Finally, it is shown that the effects of the non-thermal electrons are negligible for the conditions of the particular experiments under investigation., Comment: 12 pages, 11 figures

Published
2017
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7. Absolute density measurement of hydrogen radicals in XUV induced plasma for tin contamination cleaning via laser-induced fluorescence

Author

Tanaka, Nozomi, primary, Zhu, Baojun, additional, Liu, Chang, additional, Wang, Yubo, additional, Nishihara, Katsunobu, additional, Hernandez, James Edward, additional, Johzaki, Tomoyuki, additional, Sunahara, Atsushi, additional, Kang, Kyung Sik, additional, Ueyama, Shinji, additional, Ozawa, Ken, additional, and Fujioka, Shinsuke, additional

Published
2024
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13. Efficient photo-dissociation-induced production of hydrogen radicals using vacuum ultraviolet light from a laser-produced plasma

Author

Hernandez, James Edward, primary, Tanaka, Nozomi, additional, Yamada, Ryuya, additional, Wang, Yubo, additional, Nishihara, Katsunobu, additional, Johzaki, Tomoyuki, additional, Sunahara, Atsushi, additional, Kang, Kyung Sik, additional, Ueyama, Shinji, additional, Ozawa, Ken, additional, and Fujioka, Shinsuke, additional

Published
2024
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17. Indispensability of Ultra-High-Contrast Heating Lasers for Fast Ignition

Author

Takizawa, Ryunosuke, primary, Morace, Alessio, additional, Abe, Yuki, additional, Arikawa, Yasunobu, additional, Zhu, Baojun, additional, Morita, Hiroki, additional, Lan, Zechen, additional, Dun, Jinyuan, additional, Tsuido, Takumi, additional, Yuga, Karaki, additional, Matsubara, Hiroki, additional, Law, King Fai Farley, additional, Liu, Chang, additional, Matsuo, Kazuki, additional, Yogo, Akifumi, additional, Iwamoto, Akifumi, additional, Nagatomo, Hideo, additional, Johzaki, Tomoyuki, additional, Nakai, Mitsuo, additional, Shiraga, Hiroyuki, additional, Kodama, Ryosuke, additional, Sentoku, Yasuhiko, additional, and Fujioka, Shinsuke, additional

Published
2023
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19. Integrated Fast Ignition Simulation of Cone-guided Targetwith Three Codes

Author

Sakagami, Hitoshi, Johzaki, Tomoyuki, Nagatomo, Hideo, and Mima, Kunioki

Subjects
Physics - Plasma Physics
Abstract

It was reported that the fuel core was heated up to ~ 0.8 [keV] in the fast ignition experimentswith cone-guided targets, but they could not theoretically explain heating mechanisms and achievement of such high temperature. Thus simulations should play an important role in estimating the schemeperformance, and we must simulate each phenomenon with individual codes and integrate them under the Fast Ignition Integrated Interconnecting code project. In the previous integrated simulations, fast electronsgenerated by the laser-plasma interaction were too hot to efficiently heat the core and we got only 0.096 [keV] temperature rise. Including the density gap at the contact surface between the cone tip and theimploded plasma, the period of core heating became longer and the core was heated by 0.162 [keV], ~69% higher increment compared with ignoring the density gap effect.

Published
2004

22. Hot electron and ion spectra on blow-off plasma free target in GXII-LFEX direct fast ignition experiment

Author

OZAKI, Tetsuo, ABE, Yuki, ARIKAWA, Yasunobu, SENTOKU, Yasuhiko, KAWANAKA, Junji, TOKITA, Shigeki, MIYANAGA, Noriaki, JITSUNO, Takahisa, NAKATA, Yoshiki, TSUBAKIMOTO, Koji, SUNAHARA, Atsushi, JOHZAKI, Tomoyuki, MIURA, Eisuke, KOMEDA, Osamu, IWAMOTO, Akifumi, SAKAGAMI, Hitoshi, OKIHARA, Shinichiro, ISHII, Katsuhiro, HANAYAMA, Ryohei, MORI, Yoshitaka, KITAGAWA, Yoneyoshi, OZAKI, Tetsuo, ABE, Yuki, ARIKAWA, Yasunobu, SENTOKU, Yasuhiko, KAWANAKA, Junji, TOKITA, Shigeki, MIYANAGA, Noriaki, JITSUNO, Takahisa, NAKATA, Yoshiki, TSUBAKIMOTO, Koji, SUNAHARA, Atsushi, JOHZAKI, Tomoyuki, MIURA, Eisuke, KOMEDA, Osamu, IWAMOTO, Akifumi, SAKAGAMI, Hitoshi, OKIHARA, Shinichiro, ISHII, Katsuhiro, HANAYAMA, Ryohei, MORI, Yoshitaka, and KITAGAWA, Yoneyoshi

Abstract

Polystyrene deuteride shell targets with two holes were imploded by the Gekko XII laser and additionally heated by the LFEX laser in a direct fast ignition experiment. In general, when an ultra-intense laser is injected into a blow-off plasma created by the imploding laser, electrons are generated far from the target core and the energies of electrons increase because the electron acceleration distance has been extended. The blow-off plasma moves not only to the vertical direction but to the lateral direction against the target surface. In a shell target with holes, a lower effective electron temperature can be realized by reducing the inflow of the implosion plasma onto the LFEX path, and high coupling efficiency can be expected. The energies of hot electrons and ions absorbed into the target core were calculated from the energy spectra using three electron energy spectrometers and a neutron time-of-flight measurement system, Mandala. The ions have a large contribution of 74% (electron heating of 4.9 J and ion heating of 14.1 J) to target heating in direct fast ignition., source:T. Ozaki et al 2023 Nucl. Fusion 63 036009, source:https://doi.org/10.1088/1741-4326/acb44d

Published
2023

23. Electromagnetic field growth triggering super-ponderomotive electron acceleration during multi-picosecond laser-plasma interaction

Author

Kojima, Sadaoki, Hata, Masayasu, Iwata, Natsumi, Arikawa, Yasunobu, Morace, Alessio, Sakata, Shohei, Lee, Seungho, Matsuo, Kazuki, Law, King Fai Farley, Morita, Hiroki, Ochiai, Yugo, Yogo, Akifumi, Nagatomo, Hideo, Ozaki, Tetsuo, Johzaki, Tomoyuki, Sunahara, Atsushi, Sakagami, Hitoshi, Zhang, Zhe, Tosaki, Shota, Abe, Yuki, Kawanaka, Junji, Tokita, Shigeki, Nakai, Mitsuo, Nishimura, Hiroaki, Shiraga, Hiroyuki, Azechi, Hiroshi, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Published
2019
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24. Enhancement of К-shell spectroscopy for temperature measuring of isochorically heated matter in the sub-keV range

Author

Martynenko, Artem Sergeevich, primary, Pikuz, Tatiana, additional, Skobelev, Igor, additional, Pikuz, S A, additional, Iwata, Natsumi, additional, Johzaki, Tomoyuki, additional, Kawanaka, Junji, additional, Law, King Fai Farley, additional, Fujioka, Shinsuke, additional, Kodama, Ryosuke, additional, and Morace, Alessio, additional

Published
2023
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27. 小特集：先進燃料核融合研究の現状と展開 ４．慣性核融合における先進燃料研究

Author

JOHZAKI, Tomoyuki

Subjects
burn-up fraction, non-thermal fusion, ignition condition, inertial fusion, advanced-fuel fusion, DT ignitor
Abstract

慣性核融合における点火条件・燃焼率の簡易モデルによる評価に基づいて，DT 燃料と先進燃料（DD，D3He，p11B）の比較を行い，先進燃料の特徴を概説する．また，近年，特に注目を集めているp11B 燃料については，従来の熱核融合反応だけでなく，非熱的核融合反応に着目したレーザー加速粒子を用いたレーザー実験や，この反応を積極的に用いる点火方式などを紹介する．

Published
2022

28. 14th International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions, Proceedings

Author

Adamus, Wojciech, Addo, Albert, Alvarez-Rodriguez, Alberto, Amez, Isabel, Amyotte, Paul, Arnhold, Thorsten, Arntzen, Bjørn, Askar, Enis, Barbu, Bogdan, Barozzi, Marco, Bauwens, Regis, Bendada, Samah, Benke, Alexander, Berger, Frank, Berghmans, Jan, Bernard, Stephane, Beyer, Michael, Boeck, Lorenz, Brunzendorf, Jens, Bu, Yajie, Buchner, Christoph, Castells, Blanca, Chang, Pojul, Chen, Tengfei, Chunmiao, Yuan, Cloney, Chris, Conzen, Jens, Copelli, Sabrina, Danzi, Enrico, Dastidar, Ashok, Daubech, Jérôme, Degrève, Jan, Derudi, Marco, D'Hyon, Sebastian, Di Benedetto, Almerinda, Dobashi, Ritsu, Dorofeev, Sergey, Dueñas Santana, Julio Ariel, Dufaud, Olivier, Dufour, Anthony, Dworschak, Rene, Dyduch, Zdzisław, Dymke, Jessica, Dyrba, Patrick, Eckart, Sven, Egan, Simon, El Gadha, Chayma, El-Zahlanieh, Stephanie, Endo, Takuma, Engelmann, Frank, Essmann, Stefan, Franchini, Fausto, Franke, Steffen, Gabel, Dieter, Gambaruto, Alberto, Garcia-Torrent, Javier, Geoerg, Paul, Gerlach, Johanna, Glaude, Pierre-Alexandre, Glor, Martin, González Gómez, Orelvis, Grosshans, Holger, Guo, Yongzheng, Habib, Abdel Karim, Hébrard, Jérôme, Hecht, Kristin, Heer, Christian, Heilmann, Vanessa, Herbst, Sabrina, Hesener, Ute, Hilbert, Michael, Hisken, Helene, Huang, Chen, Huang, Weixing, Jankůj, Vojtěch, Jantac, Simon, Jean, Amelie, Johzaki, Tomoyuki, Kanbur, Harun, Kapahi, Anil Kapahi, Khan, Faisal, Kim, Wookyung, Kim, Yangkyun, Kleinert, Jan, Kluge, Martin, Koch, Florian, Kraft, Stefan, Krause, Harmut, Krause, Tim, Krause, Ulrich, Krietsch, Arne, Lakshmipathy, Sunil, Lecocq, Guillaume, León, David, Leprette, Emmanuel, Lindner-Silwester, Tino, Lucas, Melodía, Maas, Ulrich, Manchikatla, Manideep, Mao, Gongping, Mao, Huan, Markus, Detlev, Marmo, Luca, Martin, Conor, McCarthy-Singh, Bisham, Medic, Ljiljana, Meistes, Jörg, Mejía-Botero, Cristian, Melguizo-Gavilanes, Josué, Meyer, Georg, Mitu, Maria, Mogi, Toshio, Mynarz, Miroslav, Norman, Frederik, Orozco, Jesus Luis, Padron Herrera, Victor Hugo, Pan, Yangyue, Pietraccini, Matteo, Pirker, Stefan, Portarapillo, Maria, Proust, Christophe, Puttinger, Stefan, Raupenstrauch, Harald, Ren, Kaiyue, Salzano, Ernesto, Sanchirico, Roberto, Schießl, Robert, Schneiderbauer, Simon, Schüler, Niklas, Scotton, Martina Silvia, Shepherd, Joseph, Shu, Bo, Siegle, Leo, Skjold, Trygve, Skrinsky, Jan, Spijker, Christoph, Spitzer, Stefan, Springer, Niels, Stolpe, Frank, Stolz, Thomas, Tanaka, Keita, Taveau, Jerome, Thurnherr, Peter, Toman, Adrian, Trofa, Marco, Uber, Carsten, Ueda, Akihiro, Uhrland, Dirk, Valera-Medina, Agustin, Van Caneghem, Jo, van Wingerden, Kees, Vanierschot, Maarten, Veiga-López, Fernando, Verplaetsen, Filip, Vignes, Alexis, Walch, Otto, Wandt, Joachim, Wang, Jian, Wei, Aizhu, William Louis, Mame, Wu, Dejian, Xu, Wenchao, Xu, Zhijian, Yu, Chunkan, Zakel, Sabine, Zhao, Peng, and Zhong, Shengjun

Subjects
Explosion Protection, Explosions, Process Safety, Industrial Loss Prevention, Gas Dynamics
Abstract

It is our pleasure to present the proceedings of the 14th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions (ISHPMIE). Despite the ongoing global challenges, we are happy to compile proceedings consisting of 60 high-quality papers that reflect the scientific state-of-the-art in the following topical categories: Advances in explosion protection: Strategies, measures, and protective equipment; Explosion modelling and simulation; Explosion testing; Hydrogen safety; Explosion prevention; Dust explosions; Explosion-protected devices; Hybrid mixture explosions; Flame propagation and acceleration; Ignition phenomena. All articles in this volume have been subject to a peer-review process administered by the Proceeding Editors. We are thankful to the 70 expert referees who guaranteed the professional and scientific standards expected of ISHPMIE.

Published
2023
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30. Demonstration of a spherical plasma mirror for the counter-propagating kilojoule-class petawatt LFEX laser system

Author

Kojima, Sadaoki, primary, Abe, Yuki, additional, Miura, Eisuke, additional, Ozaki, Tetsuo, additional, Yamanoi, Kohei, additional, Ikeda, Tomokazu, additional, Wang, Yubo, additional, Dun, Jinyuan, additional, Guo, Shuwang, additional, Maekawa, Tamaki, additional, Takizawa, Ryunosuke, additional, Morita, Hiroki, additional, Asano, Shoui, additional, Arikawa, Yasunobu, additional, Sawada, Hiroshi, additional, Ishii, Katsuhiro, additional, Hanayama, Ryohei, additional, Okihara, Shinichiro, additional, Kitagawa, Yoneyoshi, additional, Kajimura, Yasuhiro, additional, Morace, Alessio, additional, Shiraga, Hiroyuki, additional, Shigemori, Keisuke, additional, Sunahara, Atsushi, additional, Iwata, Natsumi, additional, Sano, Takayoshi, additional, Sentoku, Yasuhiko, additional, Johzaki, Tomoyuki, additional, Nishikino, Masaharu, additional, Iwamoto, Akifumi, additional, Nagaoka, Kenichi, additional, Sakagami, Hitoshi, additional, Fujioka, Shinsuke, additional, and Mori, Yoshitaka, additional

Published
2022
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31. Multi-scale Simulations for Laser Plasma Physics

Author

Nagatomo, Hideo, Johzaki, Tomoyuki, Mima, Kunioki, Sakagami, Hitoshi, Resch, Michael, editor, Roller, Sabine, editor, Benkert, Katharina, editor, Galle, Martin, editor, Bez, Wolfgang, editor, and Kobayashi, Hiroaki, editor

Published
2010
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32. Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states

Author

Sakata, Shohei, Lee, Seungho, Morita, Hiroki, Johzaki, Tomoyuki, Sawada, Hiroshi, Iwasa, Yuki, Matsuo, Kazuki, Law, King Fai Farley, Yao, Akira, Hata, Masayasu, Sunahara, Atsushi, Kojima, Sadaoki, Abe, Yuki, Kishimoto, Hidetaka, Syuhada, Aneez, Shiroto, Takashi, Morace, Alessio, Yogo, Akifumi, Iwata, Natsumi, Nakai, Mitsuo, Sakagami, Hitoshi, Ozaki, Tetsuo, Yamanoi, Kohei, Norimatsu, Takayoshi, Nakata, Yoshiki, Tokita, Shigeki, Miyanaga, Noriaki, Kawanaka, Junji, Shiraga, Hiroyuki, Mima, Kunioki, Nishimura, Hiroaki, Bailly-Grandvaux, Mathieu, Santos, João Jorge, Nagatomo, Hideo, Azechi, Hiroshi, Kodama, Ryosuke, Arikawa, Yasunobu, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Published
2018
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33. Direct fast heating efficiency of a counter-imploded core plasma employing a laser for fast ignition experiments (LFEX)

Author

Kitagawa, Yoneyoshi, primary, Mori, Yoshitaka, additional, Ishii, Katsuhiro, additional, Hanayama, Ryohei, additional, Okihara, Shinichiro, additional, Arikawa, Yasunobu, additional, Abe, Yuki, additional, Miura, Eisuke, additional, Ozaki, Tetsuo, additional, Komeda, Osamu, additional, Suto, Hiroyuki, additional, Umetani, Yusuke, additional, Sunahra, Atsushi, additional, Johzaki, Tomoyuki, additional, Sakagami, Hitoshi, additional, Iwamoto, Akifumi, additional, Sentoku, Yasuhiko, additional, Nakajima, Nozomi, additional, Sakata, Shohei, additional, Matsuo, Kazuki, additional, Mirfayzi, Reza S., additional, Kawanaka, Junji, additional, Fujiokua, Shinsuke, additional, Tsubakimoto, Koji, additional, Shigemori, Keisuke, additional, Yamanoi, Kohei, additional, Yogo, Akifumi, additional, Nakao, Ayami, additional, Asano, Masatada, additional, Shiraga, Hiroyuki, additional, Motohiro, Tomoyoshi, additional, Hioki, Tatsumi, additional, and Azuma, Hirozumi, additional

Published
2022
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34. Picosecond snapshot imaging of electric fields induced on a cone guide target designed for fast ignition scenario

Author

Shi, Binghe, primary, Yogo, Akifumi, additional, Okamoto, Kazuki, additional, Golovin, Daniil, additional, Mirfayzi, Seyed Reza, additional, Morace, Alessio, additional, Arikawa, Yasunobu, additional, Yamanoi, Kohei, additional, Abe, Yuki, additional, Murakami, Masakatsu, additional, Gu, Yanjun, additional, Mima, Kunioki, additional, Sentoku, Yasuhiko, additional, Nakai, Mitsuo, additional, Nishimura, Hiroyuki, additional, Shiraga, Hiroyuki, additional, Fujioka, Shinsuke, additional, Johzaki, Tomoyuki, additional, Iwamoto, Akifumi, additional, Sakagami, Hitoshi, additional, and Kodama, Ryosuke, additional

Published
2022
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35. Hot Electron and Ion Spectra in Axial and Transverse Laser Irradiation in the GXII-LFEX Direct Fast Ignition Experiment

Author

OZAKI, Tetsuo, ABE, Yuki, ARIKAWA, Yasunobu, OKIHARA, Shinichirou, MIURA, Eisuke, SUNAHARA, Atsushi, ISHII, Katsuhiro, HANAYAMA, Ryohei, KOMEDA, Osamu, SENTOKU, Yasuhiko, IWAMOTO, Akifumi, SAKAGAMI, Hitoshi, JOHZAKI, Tomoyuki, KAWANAKA, Junji, TOKITA, Shigeki, MIYANAGA, Noriaki, JITSUNO, Takahisa, NAKATA, Yoshiki, TSUBAKIMOTO, Koji, MORI, Yoshitaka, KITAGAWA, Yoneyoshi, OZAKI, Tetsuo, ABE, Yuki, ARIKAWA, Yasunobu, OKIHARA, Shinichirou, MIURA, Eisuke, SUNAHARA, Atsushi, ISHII, Katsuhiro, HANAYAMA, Ryohei, KOMEDA, Osamu, SENTOKU, Yasuhiko, IWAMOTO, Akifumi, SAKAGAMI, Hitoshi, JOHZAKI, Tomoyuki, KAWANAKA, Junji, TOKITA, Shigeki, MIYANAGA, Noriaki, JITSUNO, Takahisa, NAKATA, Yoshiki, TSUBAKIMOTO, Koji, MORI, Yoshitaka, and KITAGAWA, Yoneyoshi

Abstract

An electron spectrometer was used to measure the electron and ion spectra in two different irradiations of implosion laser to the deuterated spherical shell targets at the direct fast ignition experiments on the Gekko-LFEX facility. In the transverse irradiation against the LFEX laser axis, the low effective hot electron temperature (Teff) and huge neutron yield (Ny) could be obtained although high Teff and low Ny could be observed in the axial irradiation. In the transverse irradiation, the efficient core heating could be obtained because the laser-plasma interaction position is close to the core and the diffusive/ion drag heating may be effective., source:https://doi.org/10.1585/pfr.16.2404076

Published
2022

36. Ten hertz bead pellet injection and laser engagement

Author

MORI, Yoshitaka, ISHII, K., HANAYAMA, R., OKIHARA, S., KITAGAWA, Y., NISHIMURA, Y., KOMEDA, O., HIOKI, T., MOTOHIRO, T., SUNAHARA, Atsushi, SENTOKU, Y., IWAMOTO, Akifumi, SAKAGAMI, Hitoshi, MIURA, E., JOHZAKI, Tomoyuki, MORI, Yoshitaka, ISHII, K., HANAYAMA, R., OKIHARA, S., KITAGAWA, Y., NISHIMURA, Y., KOMEDA, O., HIOKI, T., MOTOHIRO, T., SUNAHARA, Atsushi, SENTOKU, Y., IWAMOTO, Akifumi, SAKAGAMI, Hitoshi, MIURA, E., and JOHZAKI, Tomoyuki

Abstract

source:https://doi.org/10.1088/1741-4326/ac3d69, identifier:0000-0001-7754-9171

Published
2022

37. Super-strong magnetic field-dominated ion beam dynamics in focusing plasma devices

Author

MORACE, A., ABE, Y., HONRUBIA, J.J., IWATA, N., ARIKAWA, Yasunobu, NAKATA, Y., JOHZAKI, Tomoyuki, YOGO, A., SENTOKU, Yasuhiko, MIMA, Kunioki, MA, T., MARISCAL, D., SAKAGAMI, Hitoshi, NORIMATSU, Takayoshi, TSUBAKIMOTO, Koji, KAWANAKA, Junji, TOKITA, Shigeki, MIYANAGA, Noriaki, SHIRAGA, Hiroyuki, SAKAWA, Yohichi, NAKAI, Mitsuo, AZECHI, Hiroshi, FUJIOKA, Shinsuke, KODAMA, Ryosuke, MORACE, A., ABE, Y., HONRUBIA, J.J., IWATA, N., ARIKAWA, Yasunobu, NAKATA, Y., JOHZAKI, Tomoyuki, YOGO, A., SENTOKU, Yasuhiko, MIMA, Kunioki, MA, T., MARISCAL, D., SAKAGAMI, Hitoshi, NORIMATSU, Takayoshi, TSUBAKIMOTO, Koji, KAWANAKA, Junji, TOKITA, Shigeki, MIYANAGA, Noriaki, SHIRAGA, Hiroyuki, SAKAWA, Yohichi, NAKAI, Mitsuo, AZECHI, Hiroshi, FUJIOKA, Shinsuke, and KODAMA, Ryosuke

Abstract

High energy density physics is the field of physics dedicated to the study of matter and plasmas in extreme conditions of temperature, densities and pressures. It encompasses multiple disciplines such as material science, planetary science, laboratory and astrophysical plasma science. For the latter, high energy density states can be accompanied by extreme radiation environments and super-strong magnetic fields. The creation of high energy density states in the laboratory consists in concentrating/depositing large amounts of energy in a reduced mass, typically solid material sample or dense plasma, over a time shorter than the typical timescales of heat conduction and hydrodynamic expansion. Laser-generated, high current–density ion beams constitute an important tool for the creation of high energy density states in the laboratory. Focusing plasma devices, such as cone-targets are necessary in order to focus and direct these intense beams towards the heating sample or dense plasma, while protecting the proton generation foil from the harsh environments typical of an integrated high-power laser experiment. A full understanding of the ion beam dynamics in focusing devices is therefore necessary in order to properly design and interpret the numerous experiments in the field. In this work, we report a detailed investigation of large-scale, kilojoule-class laser-generated ion beam dynamics in focusing devices and we demonstrate that high-brilliance ion beams compress magnetic fields to amplitudes exceeding tens of kilo-Tesla, which in turn play a dominant role in the focusing process, resulting either in a worsening or enhancement of focusing capabilities depending on the target geometry., source:Morace, A., Abe, Y., Honrubia, J.J. et al. Super-strong magnetic field-dominated ion beam dynamics in focusing plasma devices. Sci Rep 12, 6876 (2022). https://doi.org/10.1038/s41598-022-10829-1, source:https://doi.org/10.1038/s41598-022-10829-1

Published
2022

38. Estimation of a Plasma Mirror Reflectivity of LFEX Laser and Relevant Results Using Electron Energy Spectrometers

Author

OZAKI, Tetsuo, MIURA, Eisuke, KOJIMA, Sadaoki, ARIKAWA, Yasunobu, ABE, Yuuki, YAMANOI, Kohei, IKEDA, Tomokazu, ISHII, Katsuhiro, SUNAHARA, Atsushi, JOHZAKI, Tomoyuki, SAWADA, Hiroshi, FUJIOKA, Shinsuke, SAKAGAMI, Hitoshi, KITAGAWA, Yoneyoshi, MORI, Yoshitaka, OZAKI, Tetsuo, MIURA, Eisuke, KOJIMA, Sadaoki, ARIKAWA, Yasunobu, ABE, Yuuki, YAMANOI, Kohei, IKEDA, Tomokazu, ISHII, Katsuhiro, SUNAHARA, Atsushi, JOHZAKI, Tomoyuki, SAWADA, Hiroshi, FUJIOKA, Shinsuke, SAKAGAMI, Hitoshi, KITAGAWA, Yoneyoshi, and MORI, Yoshitaka

Abstract

In the counter-irradiation, which is one of the fast ignition schemes, higher core energy coupling can be expected when there are two hot electron flows in counter directions. Two plasma mirrors were installed for the counter irradiation at about 180 degrees. The hot electron effective temperatures (Teff) were measured by using electron energy spectrometers. Teff vs the laser intensity on a foil target followed Wilkes' scaling law. The energy incident on the target could be calculated by estimating the laser intensity on the target from Teff and estimating the focusing radius from the X-ray pinhole camera image. As a result, the reflectivity could be estimated to be 17 ± 3%., source:https://doi.org/10.1585/pfr.17.2404084

Published
2022

39. Demonstration of a spherical plasma mirror for the counter-propagating kilojoule-class petawatt LFEX laser system

Author

1000040815156, Kojima, Sadaoki, Abe, Yuki, 1000010358070, Miura, Eisuke, 1000050183033, Ozaki, Tetsuo, 1000030722813, 0000-0003-4492-4099, Yamanoi, Kohei, Ikeda, Tomokazu, Wang, Yubo, Dun, Jinyuan, Guo, Shuwang, Maekawa, Tamaki, Takizawa, Ryunosuke, Morita, Hiroki, Asano, Shoui, 1000090624255, 0000-0002-3142-3060, Arikawa, Yasunobu, Sawada, Hiroshi, 1000030311517, Ishii, Katsuhiro, 1000020418924, Hanayama, Ryohei, Okihara, Shinichiro, 1000040093405, Kitagawa, Yoneyoshi, Kajimura, Yasuhiro, 1000070724326, Morace, Alessio, Shiraga, Hiroyuki, 1000050335395, 0000-0002-3978-8427, Shigemori, Keisuke, Sunahara, Atsushi, 1000070814086, Iwata, Natsumi, 1000080362606, 0000-0001-9106-3856, Sano, Takayoshi, 1000010322653, 0000-0003-2093-7100, Sentoku, Yasuhiko, 1000010397680, Johzaki, Tomoyuki, 1000070370450, Nishikino, Masaharu, 1000000260050, Iwamoto, Akifumi, 1000020353443, Nagaoka, Kenichi, 1000030254452, Sakagami, Hitoshi, 1000040372635, 0000-0001-8406-1772, Fujioka, Shinsuke, Mori, Yoshitaka, 1000040815156, Kojima, Sadaoki, Abe, Yuki, 1000010358070, Miura, Eisuke, 1000050183033, Ozaki, Tetsuo, 1000030722813, 0000-0003-4492-4099, Yamanoi, Kohei, Ikeda, Tomokazu, Wang, Yubo, Dun, Jinyuan, Guo, Shuwang, Maekawa, Tamaki, Takizawa, Ryunosuke, Morita, Hiroki, Asano, Shoui, 1000090624255, 0000-0002-3142-3060, Arikawa, Yasunobu, Sawada, Hiroshi, 1000030311517, Ishii, Katsuhiro, 1000020418924, Hanayama, Ryohei, Okihara, Shinichiro, 1000040093405, Kitagawa, Yoneyoshi, Kajimura, Yasuhiro, 1000070724326, Morace, Alessio, Shiraga, Hiroyuki, 1000050335395, 0000-0002-3978-8427, Shigemori, Keisuke, Sunahara, Atsushi, 1000070814086, Iwata, Natsumi, 1000080362606, 0000-0001-9106-3856, Sano, Takayoshi, 1000010322653, 0000-0003-2093-7100, Sentoku, Yasuhiko, 1000010397680, Johzaki, Tomoyuki, 1000070370450, Nishikino, Masaharu, 1000000260050, Iwamoto, Akifumi, 1000020353443, Nagaoka, Kenichi, 1000030254452, Sakagami, Hitoshi, 1000040372635, 0000-0001-8406-1772, Fujioka, Shinsuke, and Mori, Yoshitaka

Abstract

Kojima S., Abe Y., Miura E., et al. Demonstration of a spherical plasma mirror for the counter-propagating kilojoule-class petawatt LFEX laser system. Optics Express 30, 43491 (2022); https://doi.org/10.1364/oe.475945., A counter-propagating laser-beam platform using a spherical plasma mirror was developed for the kilojoule-class petawatt LFEX laser. The temporal and spatial overlaps of the incoming and redirected beams were measured with an optical interferometer and an x-ray pinhole camera. The plasma mirror performance was evaluated by measuring fast electrons, ions, and neutrons generated in the counter-propagating laser interaction with a Cu-doped deuterated film on both sides. The reflectivity and peak intensity were estimated as ∼50% and ∼5 × 1018 W/cm2, respectively. The platform could enable studies of counter-streaming charged particles in high-energy-density plasmas for fundamental and inertial confinement fusion research.

Published
2022

40. Estimation of a Plasma Mirror Reflectivity of LFEX Laser and Relevant Results Using Electron Energy Spectrometers

Author

OZAKI, Tetsuo, primary, MIURA, Eisuke, additional, KOJIMA, Sadaoki, additional, ARIKAWA, Yasunobu, additional, ABE, Yuuki, additional, YAMANOI, Kohei, additional, IKEDA, Tomokazu, additional, ISHII, Katsuhiro, additional, SUNAHARA, Atsushi, additional, JOHZAKI, Tomoyuki, additional, SAWADA, Hiroshi, additional, FUJIOKA, Shinsuke, additional, SAKAGAMI, Hitoshi, additional, KITAGAWA, Yoneyoshi, additional, and MORI, Yoshitaka, additional

Published
2022
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44. Enhancement of water-window soft x-ray emission from laser-produced Au plasma under low-pressure nitrogen atmosphere

Author

John, Christian, Johzaki, Tomoyuki, Higashiguch, Takeshi, Kakunaka, Noboru, Matsumoto, Yasuhiro, Ejima, Takeo, Sunahara, Atsushi, Endo, Takuma, Kishimoto, Maki, Hasegawa, Noboru, and Nishikino, Masaharu

Abstract

To generate bright water-window (WW) soft x rays (2.3–4.4 nm), gold slab targets were irradiated with laser pulses (1064 nm, 7 ns, 1 J). Emission spectroscopy showed that the introduction of low-pressure nitrogen enhanced the soft x-ray yield emitted from the laser-produced Au plasma. The intensity of the WW x-ray transported in a 400-Pa N2 atmosphere from the laser-produced plasma increased by 3.8 times over that in vacuum. Considering a strong x-ray absorption, the x-ray yield emitted directly from the Au plasma in the N2 gas was evaluated to be 13 times higher than that in vacuum. Although similar measurements were made for various gases, only N2 gas causes an increase in a soft x-ray yield. The processes leading to this enhancement mechanism were revealed by using hydrodynamic simulation and atomic structure codes.

Published
2019

46. Hot Electron and Ion Spectra in Axial and Transverse Laser Irradiation in the GXII-LFEX Direct Fast Ignition Experiment

Author

OZAKI, Tetsuo, primary, ABE, Yuki, additional, ARIKAWA, Yasunobu, additional, OKIHARA, Shinichirou, additional, MIURA, Eisuke, additional, SUNAHARA, Atsushi, additional, ISHII, Katsuhiro, additional, HANAYAMA, Ryohei, additional, KOMEDA, Osamu, additional, SENTOKU, Yasuhiko, additional, IWAMOTO, Akifumi, additional, SAKAGAMI, Hitoshi, additional, JOHZAKI, Tomoyuki, additional, KAWANAKA, Junji, additional, TOKITA, Shigeki, additional, MIYANAGA, Noriaki, additional, JITSUNO, Takahisa, additional, NAKATA, Yoshiki, additional, TSUBAKIMOTO, Koji, additional, MORI, Yoshitaka, additional, and KITAGAWA, Yoneyoshi, additional

Published
2021
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47. Influence of Exit Diameter on the Performance of Pulse-Detonation Spraying

Author

KAWAMATA, Ryosuke, NOTSU, Akira, KIM, Wookyung, JOHZAKI, Tomoyuki, ENDO, Takuma, MATSUOKA, Ken, HANAFUSA, Tatsuo, and OTA, Kohei

Subjects
Exit diameter, Detonation, Thermal spray, Yttria-stabilized zirconia
Abstract

2019年度衝撃波シンポジウム (2020年3月4日-6日. 神戸大学 海事科学研究科（深江キャンパス)）神戸市, 兵庫県, Symposium on Shock Waves in Japan, FY2019 (March 3-4, 2020. Kobe University), Kobe, Hyogo Japan, 2019年度衝撃波シンポジウムは、新型コロナウイルスの感染拡大防止のため開催中止, 資料番号: SA6000148059, レポート番号: 2A2-2[若]

Published
2020

48. 13th International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions, Proceedings

Author

Baumann, Florian, Beyer, Michael, Brandes, Elisabeth, Brunzendorf, Jens, Chowhan, Sai charan singh, Esmaeelzade, Ghazaleh, Essmann, Stefan, Grosshans, Holger, Hau, Michael, Heilmann, Vanessa, Hilbert, Michael, Himstedt, Matthias, Hirsch, Werner, Krause, Tim, Kummer, Johann-Robert, Lienesch, Frank, Markus, Detlev, Möckel, Dieter, Stolz, Thomas, Susanti, Nuki, Taiwo, Adeyemi, Thedens, Martin, Uber, Carsten, Zakel, Sabine, Abbas, Zaheer, Adamus, Wojciech, Addis, James, Addo, Albert, Allason, Dan, Amez, Isabel, Amyotte, Paul, Askar, Enis, Atanga, Gordon, Ballossier, Yves, Bambauer, Maximilian, Barbu, Bogdan, Barfuss, Christoph, Barowy, Adam, Bauwens, Regis, Bedarev, Igor, Ben Moussa, Rym, Berger, Frank, Berghmans, Jan, Bernard, Laurence, Betteridge, Steven, Bi, Mingshu, Boeck, Lorenz, Brown, Connor, Calero, Mathieu, Carcassi, Marco, Castells, Blanca, Chakraborty, Nilanjan, Chang, Pojul, Charvet, Augustin, Chasko, Linda, Chen, Jenq-Renn, Chen, Tengfei, Cloney, Chris, Clouthier, Martin, Danzi, Enrico, Degrève, Jan, Delon, Eloise, Demoulin, François-Xavier, Dobashi, Ritsu, Dorofeev, Sergey, Drost, Simon, Dufaud, Olivier, Dufour, Anthony, Dutertre, Antoine, Dyduch, Zdzisław, Eckhoff, Rolf, Elio Medina, Javier, El-Zahlanieh, Stéphanie, Endo, Takuma, Erdt, René, Eugene, Y. Ngai, Fernandez Anez, Nieves, Fišerová, Eliška, Franke, Steffen, Franken, Fabian, Franquet, Erwin, Frette, Vidar, Frost, Kirstin, Gabel, Dieter, Gandhi, Pravin, Gao, Wei, Garcia-Torrent, Javier, Geoerg, Paul, Glaude, Pierre-Alexandre, Glechner, Julian, Gödde, Markus, Gorny, Michal, Grønsund Hanssen, Arve, Groß, Hans-Jürgen, Guhathakurta, Swagnik, Hacke, Susanne, Hagen, Bjarne Christian, Harris, Marcia, Hasslberger, Josef, Hébrard, Jérôme, Heilbronn, Daniel, Hisken, Helene, Houim, Ryan, Hu, Qianran, Hu, Yang, Huang, Lei, Hüttenbrenner, Katja, Jallais, Simon, Jambut, Romain, Jamois, Didier, Jenney, Lorraine, Jiang, Haipeng, Johnson, Mike, Johzaki, Tomoyuki, Jones, Silken, Joubert, Lauris, Kadoke, Daniel, Kao, Ting-Jia, Karl, Jan, Kern, Hannes, Khmel, Tatyana, Kim, Wookyung, Klein, Markus, Kleppe, Gisle, Klieger, Alexandra, Klima, Scott, Kong, Depeng, Kornev, Nikolai, Koubkova, Milada, Krause, Ulrich, Krietsch, Arne, Kristen, Andor, Lach, Agnieszka, Lakshmipathy, Sunil, Langrée, Cléante, Lavruk, Sergey, Lecocq, Guillaume, Lee, Chun-Yi, Lefebvre, Xavier, Lepík, Petr, Leprette, Emmanuel, Leroy, Guillaume, Li, Jianguo, Li, Mingzhi, Li, Pengliang, Li, Xuan, Liebner, Christian, Lin, Yu-Jhen, Lin, Zhi-Xuan, Liu, Zhenyi, Lucas, Melodia, Lüth, Peter, Lv, Pengfei, Maas, Ulrich, Malow, Marcus, Marmo, Luca, Marteau, Thibault, Martin, Conor, Mauri, Lorenzo, Medic, Ljiljana, Meier, Mirko, Mele, Maria Luisa, Melguizo-Gavilanes, Josué, Meyer, Anita, Michael-Schulz, Heike, Miller, Derek, Mitu, Maria, Mogi, Toshio, Mynarz, Miroslav, Namba, Takumi, Nguyen, Trung, Norman, Frederik, Ogungbemide, Damilare, Pacault, Stéphanie, Pan, Yangyue, Pang, Lei, Papalexandris, Miltiadis V., Pekalski, Andrzej, Perera, Inoka, Perrin, Laurent, Pietraccini, Matteo, Pini, Tommaso, Pio, Gianmaria, Plischka, Henry, Proust, Christophe, Quillatre, Pierre, Rao, Vendra Chandra Madhav, Ratschow, Aaron, Raupenstrauch, Harald, Raval, Priyank, Reveillon, Julien, Reyes Rodriguez, Monica, Ripley, Robert, Russo, Paola, Salg, Steffen, Salzano, Ernesto, Santandrea, Audrey, Sattelmayer, Thomas, Schiavetti, Martino, Schießl, Robert, Schmidt, Martin, Schröder, Volkmar, Seitz, Franziska, Ševčik, Libor, Shenton, Martyn, Shepherd, Joseph, Sinha, Anubhav, Skjold, Trygve, Snoeys, Jef, Spijker, Christoph, Spitzer, Stefan, Stein, Sigrun, Suchý, Ondřej, Sun, Xiaomeng, Tai, Hui-Chu, Toman, Adrian, Torrado, David, Toth, Florian, Tribouilloy, Benoit, Tropin, Dmitry, Tsai, Hsiao-Yun, Tulach, Ales, Turnow, Johann, Uhlig, Steffen, Uhrland, Dirk, Vagner Gaathaug, Andre, Van Caneghem, Jo, van Wingerden, Kees, van Wingerden, Matthijs, Vanierschot, Maarten, Velagala, Subrahmanyeswara, Verplaetsen, Filip, Vignes, Alexis, Virot, Florent, Vyazmina, Elena, Wang, Changjian, Wen, Jennifer, Werler, Marc, Wu, Chunwei, Wu, Dejian, Yang, Kai, Zalosh, Robert, Zhang, Shulin, Zhao, Yao, and Physikalisch-Technische Bundesanstalt (PTB)

Subjects
Explosion Protection, Explosions, Process Safety, Industrial Loss Prevention, Gas Dynamics
Abstract

It is our pleasure to present the proceedings of the 13th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions (ISHPMIE). The publication of these proceedings was heavily affected by the global situation. In light of these challenges, we are happy to compile proceedings consisting of 84 high-quality papers that reflect the scientific state-of-the-art in the following topical categories: Advances in explosion protection: Strategies, measures, and protective equipment; Detonations and DDT; Electro-chemical energy carriers; Explosion modelling and simulation; Explosion prevention; Explosion properties of substances and mixtures; Explosion testing; Explosions of sprays and vapors; Flame propagation and acceleration; Gas, dust, and hybrid mixture explosions; Hydrogen safety and Ignition phenomena. All articles in this volume have been subject to a peer review process administered by the proceeding editors.

Published
2020
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49. Direct Heating of Counter Imploded Core

Author

KITAGAWA, Yoneyoshi, primary, ARIKAWA, Yasunobu, additional, MIURA, Eisuke, additional, OZAKI, Tetsuo, additional, KOMEDA, Osamu, additional, SUNAHARA, Atsushi, additional, JOHZAKI, Tomoyuki, additional, MOTOHIRO, Tomoyoshi, additional, AZUMA,, Hirozumi, additional, MORI, Yoshitaka, additional, ISHII,, Katsuhiro, additional, HANAYAMA, Ryohei, additional, OKIHARA, Shinichiro, additional, ABE,, Yuki, additional, SUTO, Hiroyuki, additional, UMETANI,, Yusuke, additional, SAKAGAMI, Hitoshi, additional, IWAMOTO, Akifumi, additional, SENTOKU, Yasuhiko, additional, HIOKI, Tatsumi, additional, NAKAJIMA, Nozomi, additional, SAKATA,, Shohei, additional, MATSUO, Kazuki, additional, Reza MIRFAYZI, S., additional, KAWANAKA, Junji, additional, FUJIOKA, Shinsuke, additional, TSUBAKIMOTO, Koji, additional, SHIGEMORI, Keisuke, additional, YAMANOI, Kohei, additional, YOGO, Akifumi, additional, NAKAO,, Ayami, additional, ASANO, Masatada, additional, and SHIRAGA, Hiroyuki, additional

Published
2021
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