Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Nishimoto, Kiwamu*; Tang, J.*; Ogawa, Shuichi*; Yoshigoe, Akitaka; Ishizuka, Shinji*; Watanabe, Daiki*; Teraoka, Yuden; Takakuwa, Yuji*
no journal, ,
7 studied by real-time photoelectron spectroscopy and theoretical calculationsTang, J.*; Nishimoto, Kiwamu*; Ogawa, Shuichi*; Yoshigoe, Akitaka; Ishizuka, Shinji*; Watanabe, Daiki*; Teraoka, Yuden; Takakuwa, Yuji*
no journal, ,
Asaoka, Hidehito; Uozumi, Yuki; Yokoyama, Yuta; Yamaguchi, Kenji
no journal, ,
no abstracts in English
-FeSi
thin film fabricated on Si and silicon-on-insulator substratesSasase, Masato*; Yamamoto, Hiroyuki; Shimura, Kenichiro*; Yamaguchi, Kenji
no journal, ,
In the present study, -FeSi films were deposited on Si(100) and silicon on insulator (SOI). Nanostructural and compositional changes at the interface take place during film formation and it is expected that these would be dependent on the substrates used. The structural changes at the interface, crystallinity of the -FeSi film and interface, and the elemental composition, chemical states were investigated using cross-sectional transmission electron microscopy (TEM) and energy dispersive X-ray mapping. Based on the observation and analysis, the effect of the interface structure and chemical states on the PL properties, which are important for optoelectronic devices, is discussed with nanoscale TEM observation.
Yokoyama, Yuta; Uozumi, Yuki; Asaoka, Hidehito
no journal, ,
no abstracts in English
Al foil catalystsXu, Y.*; Ma, Y.*; Sakurai, Junya*; Teraoka, Yuden; Yoshigoe, Akitaka; Demura, Masahiko*; Hirano, Toshiyuki*
no journal, ,
Kamiya, Junichiro; Ogiwara, Norio; Hotchi, Hideaki; Hayashi, Naoki; Kinsho, Michikazu
no journal, ,
One of the reasons of beam loss in the RCS of J-PARC is unwanted stray magnetic field originating from magnets at the beam extraction line, which distorts the beam orbit so that the beam partially hit a vacuum chamber wall. It is required to shield the unwanted external magnetic field to less than one-tenth. The most effective way to shield such magnetic field is to cover the beam region by magnetic materials. We've developed a vacuum chamber of soft magnetic materials with high permeability. Considering the read availability of a material and fabrication yield, we decided to make the beam ducts and the bellows by a combination of permalloy PC, SUS430 and SUS316L. The magnetic shielding characteristic of these vacuum equipments is measured by taking the magnetic field mapping inside. The required magnetic shielding performance was achieved. After installing these vacuum equipments in the accelerator, we achieve the beam loss reduction by the vacuum chambers of magnetic materials.
Ogiwara, Norio; Hikichi, Yusuke; Kamiya, Junichiro; Kinsho, Michikazu
no journal, ,
Koizumi, Oji*; Inoue, Masaru*; Ogiwara, Norio; Kamiya, Junichiro; Kinsho, Michikazu
no journal, ,