Toshiki Tajima
University of California, Irvine
642 Papers
3.7K Citations
Toshiki Tajima is an academic researcher from University of California, Irvine. The author has contributed to research in topics: Laser & Plasma. The author has an hindex of 68, co-authored 627 publications. Previous affiliations of Toshiki Tajima include Japan Atomic Energy Research Institute & Japan Atomic Energy Agency.
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Papers
Crystal x-ray accelerator
Toshiki Tajima,M Cavenago +1 more
TL;DR: An ultimate linac structure is realized by an appropriate crystal lattice (superlattice) that serves as a ''soft'' irised waveguide for x rays, yielding slow-wave accelerating fields.
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Formation of hot, stable, long-lived field-reversed configuration plasmas on the C-2W device
Hiroshi Gota,Michl Binderbauer,Toshiki Tajima,Sergei Putvinski,M. Tuszewski,Bihe Deng,Sean Dettrick,Deepak Gupta,Sergey Korepanov,R. M. Magee,Thomas Roche,J. Romero,Artem Smirnov,Vladimir Sokolov,Y. Song,L. C. Steinhauer,M. C. Thompson,Erik Trask,A. Van Drie,Xiaokang Yang,Peter Yushmanov,K. Zhai,I. Allfrey,R. Andow,E. Barraza,M. Beall,N. Bolte,E. Bomgardner,F. Ceccherini,A. Chirumamilla,Ryan Clary,T. DeHaas,Jon Douglass,Ami DuBois,A. Dunaevsky,D. Fallah,P. Feng,C. Finucane,Daniel Fulton,Laura Galeotti,K. Galvin,Erik Granstedt,Martin Griswold,U. Guerrero,Saurabh Gupta,Kevin Hubbard,Ivan Isakov,J. S. Kinley,A. Korepanov,S. Krause,Calvin Lau,H. Leinweber,J. Leuenberger,D. Lieurance,M. Madrid,D. Madura,T. Matsumoto,V. Matvienko,M. Meekins,R. Mendoza,R. Michel,Y. Mok,M. Morehouse,M. Nations,Ales Necas,Marco Onofri,D. Osin,A. Ottaviano,E. Parke,Tania Schindler,J. H. Schroeder,L. Sevier,D. Sheftman,A. Sibley,M. Signorelli,Roger Smith,M. Slepchenkov,G. Snitchler,J.B. Titus,J. Ufnal,T. Valentine,W. Waggoner,J. K. Walters,C. Weixel,M. Wollenberg,S. Ziaei,L. W. Schmitz,Zhihong Lin,A. A. Ivanov,Tomohiko Asai,E. A. Baltz,John Platt +91 more
TL;DR: The C-2W experimental device (also called "Norman") as discussed by the authors is the world's largest compact-toroid (CT) device, which has several key upgrades from the preceding C2U device such as higher input power and longer pulse duration of the NBI system as well as installation of inner divertors with upgraded electrode biasing systems.
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Neural net forecasting for geomagnetic activity
TL;DR: In this paper, the authors use neural nets to construct nonlinear models to forecast the AL index given solar wind and interplanetary magnetic field (IMF) data, which is a nonlinear generalization of autoregressive moving average models.
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•Posted Content
Study of x-ray emission enhancement via high contrast femtosecond laser interacting with solid foil
Liming Chen,Masaki Kando,S. V. Bulanov,James K. Koga,Kazuhisa Nakajima,Toshiki Tajima,M. H. Xu,X. H. Yuan,Yutong Li,Q. L. Dong,Jie Zhang +10 more
TL;DR: In this paper, the authors studied the hard x-ray emission and the K-alpha conversion efficiency produced by 60 fs high contrast frequency doubled Ti: sapphire laser pulse focused on Cu foil target.
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Elevated serum soluble fms-like tyrosine kinase 1 (sFlt1) level in women with hydatidiform mole.
Kaori Koga,Yutaka Osuga,Toshiki Tajima,Yasushi Hirota,Toshio Igarashi,Tomoyuki Fujii,Tetsu Yano,Yuji Taketani +7 more
TL;DR: Elevated levels of sFlt1 were noted in molar gestations and may play in a role in early-onset preeclampsia reported in such pregnancies.
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