Yuken Ohshiro, T. Kawate, H. Yamaguchi, I. Murakami
{"title":"Measurement of L-Shell Emission from Iron-Group Elements for High-Resolution X-Ray Spectroscopy in Future Astronomy","authors":"Yuken Ohshiro, T. Kawate, H. Yamaguchi, I. Murakami","doi":"10.1585/pfr.18.2401041","DOIUrl":"https://doi.org/10.1585/pfr.18.2401041","url":null,"abstract":"","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43138689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takumi Seto, N. Ezumi, Reina Miyauchi, Naoki Shigematsu, Takuma Okamoto, S. Takahashi, Kosuke Takanashi, M. Hirata, S. Togo, M. Sakamoto, T. Furukawa, S. Shinohara
{"title":"Initial Properties of Steady State RF Plasma Source by Two Turn Flat Loop Antenna for DEMO Relevant Divertor Simulation Experiment","authors":"Takumi Seto, N. Ezumi, Reina Miyauchi, Naoki Shigematsu, Takuma Okamoto, S. Takahashi, Kosuke Takanashi, M. Hirata, S. Togo, M. Sakamoto, T. Furukawa, S. Shinohara","doi":"10.1585/pfr.18.2401054","DOIUrl":"https://doi.org/10.1585/pfr.18.2401054","url":null,"abstract":"","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46027980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In Situ Visualization Inspired by Ant Colony Formation","authors":"Yan Wang, N. Ohno, A. Kageyama","doi":"10.1585/pfr.18.2401045","DOIUrl":"https://doi.org/10.1585/pfr.18.2401045","url":null,"abstract":"","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48473813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Numerical Study of Ion Beam Evolution by Applying Pulsed Magnetic Field to RF Plasma","authors":"T. Matsuzawa, T. Takezaki, Hiroaki Ito","doi":"10.1585/pfr.18.2401044","DOIUrl":"https://doi.org/10.1585/pfr.18.2401044","url":null,"abstract":"","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44716951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shinichiro Inagaki, A. Sanpei, Takeru Inoue, N. Kojima, R. Takaoka, T. Sasaki, H. Himura
{"title":"First Experimental Monitoring of the Three-Dimensional Structure of Toroidal Plasmas Using Multiple Soft X-Ray Imaging Techniques","authors":"Shinichiro Inagaki, A. Sanpei, Takeru Inoue, N. Kojima, R. Takaoka, T. Sasaki, H. Himura","doi":"10.1585/pfr.18.2402046","DOIUrl":"https://doi.org/10.1585/pfr.18.2402046","url":null,"abstract":"","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46707538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takuma Okamoto, N. Ezumi, S. Togo, R. Perillo, Naoki Shigematsu, Takumi Seto, Kosuke Takanashi, S. Takahashi, Reina Miyauchi, M. Sakamoto
{"title":"Effect of Impurity Ions on Ion Current Flowing into an Ion Sensitive Probe during N2 and H2 Seeding in Hydrogen Plasma","authors":"Takuma Okamoto, N. Ezumi, S. Togo, R. Perillo, Naoki Shigematsu, Takumi Seto, Kosuke Takanashi, S. Takahashi, Reina Miyauchi, M. Sakamoto","doi":"10.1585/pfr.18.1402047","DOIUrl":"https://doi.org/10.1585/pfr.18.1402047","url":null,"abstract":"","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42740371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Oguchi, Jun Matsuyama, Muneaki Shigeta, T. Takezaki, Toru Sasaki, Hiroaki Ito
{"title":"Measurement of Ion Energy Distribution Function of Fast Plasma Flow Driven by Plasma Focus Device Using Retarding Field Energy Analyzer","authors":"T. Oguchi, Jun Matsuyama, Muneaki Shigeta, T. Takezaki, Toru Sasaki, Hiroaki Ito","doi":"10.1585/pfr.18.2401049","DOIUrl":"https://doi.org/10.1585/pfr.18.2401049","url":null,"abstract":"","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46961590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Turbulent Particle Fluxes in Reduced MHD Simulation","authors":"Haruhiko Todoroki, N. Kasuya, M. Yagi","doi":"10.1585/pfr.18.1203052","DOIUrl":"https://doi.org/10.1585/pfr.18.1203052","url":null,"abstract":"","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46616809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takumi Kodahara, M. Sasaki, Y. Kawachi, Yuki Jajima, Tatsuya Kobayashi, T. Yamada, H. Arakawa, A. Fujisawa
Multi-field singular value decompositions (SVDs) is applied to turbulence obtained in a cylindrical magnetized plasma, PANTA. This method enables us to obtain the spatial mode structures with common temporal evolution of di ff erent physical quantities, such as the fluctuations of density and flows. Turbulence driven particle transport is evaluated by the method. It is shown that only the coupling of the same mode drives the transport, which stems from the orthogonality of the SVD. Thanks to this characteristics, the number of degrees of freedom which plays roles for the transport dynamics could be significantly reduced.
{"title":"Analysis of Turbulence Driven Particle Transport in PANTA by Using Multi-Field Singular Value Decomposition","authors":"Takumi Kodahara, M. Sasaki, Y. Kawachi, Yuki Jajima, Tatsuya Kobayashi, T. Yamada, H. Arakawa, A. Fujisawa","doi":"10.1585/pfr.18.1202036","DOIUrl":"https://doi.org/10.1585/pfr.18.1202036","url":null,"abstract":"Multi-field singular value decompositions (SVDs) is applied to turbulence obtained in a cylindrical magnetized plasma, PANTA. This method enables us to obtain the spatial mode structures with common temporal evolution of di ff erent physical quantities, such as the fluctuations of density and flows. Turbulence driven particle transport is evaluated by the method. It is shown that only the coupling of the same mode drives the transport, which stems from the orthogonality of the SVD. Thanks to this characteristics, the number of degrees of freedom which plays roles for the transport dynamics could be significantly reduced.","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42090971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, a cooling system for fusion reactor divertor that utilizes a swirling flow generated downstream of multi-elbow piping was proposed, and flow fields of the multi-elbow piping (triple elbow) were investigated using flow visualization experiment. Additionally, heat transfer experiment was conducted under one-sided heating condition to simulate a fusion reactor environment. The results revealed that the heat flux removed by the swirling flow in the elbow piping exceeded the critical heat flux in straight piping, and a heat removal performance of up to 25 MW / m 2 was achieved.
{"title":"Heat Transfer Characteristics Evaluation of Multi-Elbow Cooling System for Fusion Divertor under One-Sided Heating","authors":"S. Ebara, Kenya Mitobe, Y. Hamaji, H. Hashizume","doi":"10.1585/pfr.18.2405034","DOIUrl":"https://doi.org/10.1585/pfr.18.2405034","url":null,"abstract":"In this study, a cooling system for fusion reactor divertor that utilizes a swirling flow generated downstream of multi-elbow piping was proposed, and flow fields of the multi-elbow piping (triple elbow) were investigated using flow visualization experiment. Additionally, heat transfer experiment was conducted under one-sided heating condition to simulate a fusion reactor environment. The results revealed that the heat flux removed by the swirling flow in the elbow piping exceeded the critical heat flux in straight piping, and a heat removal performance of up to 25 MW / m 2 was achieved.","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48797352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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