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Oral presentation

Heavy ion induced current in SiC MOS capacitors

Makino, Takahiro; Oshima, Takeshi; Iwamoto, Naoya; Onoda, Shinobu; Nozaki, Shinji*; Kojima, Kazutoshi*

no journal, , 

no abstracts in English

Oral presentation

Progress of SiC power electronics development towards Green Innovation; Closing Remarks

Ito, Hisayoshi

no journal, , 

As closing remarks of the JSAP symposium entitled "Progress of SiC power electronics development towards Green Innovation", all the contents presented there will be summarized and concluded.

Oral presentation

Homoepitaxial growth of $$beta$$-FeSi$$_2$$ single crystal with sputter-etch treatment

Yamaguchi, Kenji; Matsumura, Seidai*; Yamanaka, Yusuke*; Hojo, Kiichi; Udono, Haruhiko*

no journal, , 

no abstracts in English

Oral presentation

Separation and recovery of platinum-group metals based on particle-formation process induced by laser photo-reduction

Oba, Hironori; Saeki, Morihisa; Sasaki, Yuji

no journal, , 

no abstracts in English

Oral presentation

Interface defect of amorphous SiO$$_{2}$$/SiC interface atomic model generated by first-principals molecular dynamics method

Miyashita, Atsumi; Onuma, Toshiharu*; Tsuchida, Hidekazu*; Yoshikawa, Masahito

no journal, , 

no abstracts in English

Oral presentation

Irradiation polarization dependence of local electrical conductivity of SiC modified by femtosecond laser

Ito, Takuto*; Deki, Manato; Matsuo, Shigeki*; Hashimoto, Shuichi*; Kitada, Takahiro*; Isu, Toshiro*; Onoda, Shinobu; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Synergy effects of electron irradiation and alkaline pretreatment on hydriding property of hydrogen storage materials

Abe, Hiroshi; Kishimoto, Masahiko*; Muraki, Keita*; Uchida, Hirohisa*; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Real-time photoemission spectroscopy measurements of initial oxidation process of high-index Si surfaces

Ono, Shinya*; Inoue, Kei*; Morimoto, Masahiro*; Arae, Sadanori*; Toyoshima, Hiroaki*; Yoshigoe, Akitaka; Teraoka, Yuden; Ogata, Shoichi*; Yasuda, Tetsuji*; Tanaka, Masatoshi*

no journal, , 

no abstracts in English

Oral presentation

LEED and SR-XPS observations of graphitization on orientationally rotated epitaxial film of 3C-SiC(111)/Si(110)

Takahashi, Ryota*; Handa, Hiroyuki*; Abe, Shunsuke*; Inomata, Shuya*; Imaizumi, Kei*; Fukidome, Hirokazu*; Teraoka, Yuden; Yoshigoe, Akitaka; Kotsugi, Masato*; Okochi, Takuo*; et al.

no journal, , 

no abstracts in English

Oral presentation

Heat-treatment of $$beta$$-FeSi$$_2$$ substrate under Si vapor and homoepitaxy

Matsumura, Seidai*; Yamanaka, Yusuke*; Udono, Haruhiko*; Yamaguchi, Kenji; Esaka, Fumitaka; Hojo, Kiichi

no journal, , 

no abstracts in English

Oral presentation

mirco-IBIL analysis system for microscopic imaging of chemical-state distribution

Kada, Wataru; Yokoyama, Akihito; Koka, Masashi; Sato, Takahiro; Kamiya, Tomihiro

no journal, , 

An Ion Beam-Induced Luminescence analysis system using micro-beam (micro-IBIL) was newly developed and combined with micro-PIXE analysis system to obtain images of chemical-state (i.e. electrical charge distribution) distribution of the targets. Photon signals from the interactions of ions with outer shell electrons was visualized by panchromatic and wavelength dispersive micro-IBIL imaging by the developed system. Micro-IBIL experiments were performed using 3-MeV proton micro-beam with several sample of scintillators and aerosol particles. The system had successfully achieved chemical-imaging of aerosols by obtaining wavelength-dispersive micro-IBIL image at luminescence center of silicon dioxide (around 425 nm). It is so far becomes possible to obtain crystal structure or chemical-state distribution of the sample by using monochromatic IBIL imaging by the developed system.

Oral presentation

OPCPA/LD pumped Yb:YAG thin disk hybrid laser system

Suzuki, Masayuki; Kiriyama, Hiromitsu; Daito, Izuru; Okada, Hajime; Sato, Masatoshi*; Yoshii, Takehiro*; Tamaoki, Yoshinori*; Matsuoka, Shinichi*; Kan, Hirofumi*; Bolton, P.; et al.

no journal, , 

no abstracts in English

Oral presentation

Photoelectron-photoion coincidence momentum imaging for dissociative ionization of ethanol in two color laser fields

Ikuta, Tomoya; Itakura, Ryuji; Hosaka, Koichi*; Yokoyama, Atsushi; Yamanouchi, Kaoru*; Kannari, Fumihiko*

no journal, , 

We investigate the dissociative ionization dynamics of ethanol in two color (UV-NIR) laser fields using photoelectron-photoion coincidence momentum imaging. The details of the ionization dynamics for the respective reaction channels are elucidated. The reaction mechanism in terms of the electronic excitation is discussed.

Oral presentation

Ion channeling analysis of Fe$$_{2}$$CoSi, Co$$_{2}$$FeSi/Ge heterointerfaces

Matsukura, Bui*; Narumi, Kazumasa; Sakai, Seiji; Hamaya, Kohei*; Miyao, Masanobu*; Maeda, Yoshihito

no journal, , 

no abstracts in English

Oral presentation

Evaluation of characteristics of B-type neutron color image intensifier in thermal neutron radiography facility

Yasuda, Ryo; Nojima, Takehiro; Matsubayashi, Masahito

no journal, , 

no abstracts in English

Oral presentation

Shape transformation of Au nanoparticles in SiO$$_{2}$$ induced by swift heavy-ion irradiation

Sasase, Masato*; Okayasu, Satoru; Yamamoto, Hiroyuki

no journal, , 

Shape transformation of Au nanoparticles in SiO$$_{2}$$ has been performed by by swift heavy-ion irradiation.

Oral presentation

The Generation of the high energy protons with J-KAREN laser system at JAEA

Nishiuchi, Mamiko; Pirozhkov, A. S.; Ogura, Koichi; Tanimoto, Tsuyoshi; Sakaki, Hironao; Hori, Toshihiko; Sagisaka, Akito; Yogo, Akifumi; Fukuda, Yuji; Kanasaki, Masato; et al.

no journal, , 

We present the results of the experiment of laser-driven proton acceleration with the interaction between laser and thin foil target. The maximum energy of the laser-driven protons increases as the intensity of the laser increases. In order to accelerate the proton beam toward higher energy with the limited energy of laser, we need to increase the intensity of the laser. For that purpose, we upgraded the laser mirrors in the beam line. As a result the intensity of the laser increases about one oreder of magnitude. With the tape target, we obtain proton beam whose maximum energy is 23 MeV. We also conducted the plasma mirror to increase the contrast of the laser. We show the detail of the proton acceleration results with the plasma mirror.

Oral presentation

Atomic modeling of short wavelength EUV sources using Gd and Tb target

Sasaki, Akira; Nishihara, Katsunobu*; Sunahara, Atsushi*; Furukawa, Hiroyuki*; Nishikawa, Takeshi*; Koike, Fumihiro*

no journal, , 

no abstracts in English

Oral presentation

Characterization of high energy ion beam by using back scattered particles

Fukuda, Yuji; Sakaki, Hironao; Hori, Toshihiko; Tampo, Motonobu; Kurashima, Satoshi; Kamiya, Tomihiro; Kondo, Kiminori; Kanasaki, Masato; Yamauchi, Tomoya*

no journal, , 

A new diagnosis method for high energy ion beam has been developed utilizing backscattered particles. A single 100-$$mu$$m thick CR-39 detector mounted on a 3-mm thick backscatterer was irradiated with $${^4}$$He$$^{2+}$$ ions with an energy of 25 MeV/$$n$$. Although this energy is too high to create etchable tracks on both surfaces of the CR-39, we found that a number of elliptical pits as well as circular ones were created on the rear surface. The existence region of the elliptical pits well reproduced the initial ion beam pattern. Detailed investigation of growth pattern of each pit size revealed that most of etch pits in the rear surface were created by backscattered He particles. The results indicate that using this method it is possible to identify energy, number, and profile of high energy ion beam which is insensitive to CR-39.

Oral presentation

A New simple diagnosis method for intense ion beam utilizing back scattered particles with CR-39 detectors

Kanasaki, Masato; Yamauchi, Tomoya*; Fukuda, Yuji; Sakaki, Hironao; Hori, Toshihiko; Tampo, Motonobu; Kondo, Kiminori

no journal, , 

A new diagnosis method for high energy ion beam has been developed utilizing backscattered particles. A single 100-$$mu$$m thick CR-39 detector mounted on a 3-mm thick backscattered was irradiated with $$^{4}$$He$$^{2+}$$ ions with an energy of 25 MeV/$$n$$. Although this energy is too high to create etchable tracks on both surfaces of the CR-39, we found that a number of elliptical pits as well as circular ones were created on the rear surface. The existence region of the elliptical pits well reproduced the initial ion beam pattern. Detailed investigation of growth pattern of each pit size revealed that most of etch pits in the rear surface were created by backscattered He particles. The results indicate that using this method it is possible to identify energy, number, and profile of high energy ion beam which is insensitive to CR-39.

28 (Records 1-20 displayed on this page)