• Title/Summary/Keyword: Co-laboratory

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Emission Profile Studies of Thermionic Cathodes and Field Emitters

  • Tawa, Yasuhiro;Kai, Junjiro;Tama, Masayoshi;Ijima, Kenji;Saito, Tsunenari
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.371-375
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    • 2002

  • Emissions of thermionic cathodes and field emitters were studied using a cathode emission profiler which works based on the anode scanning method. Findings about impregnated cathodes in thermal activation and gas poisoning processes are shown. Effects of surface treatments for field emitters are studied from the viewpoint of emission profiles and characteristics of the emitters.

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MAGNETISM OF NANOCOMPOSITE CoSm-BASED FILMS

  • Shan, Z.S.;Liu, Y.;Jeong, S.Y.;Zhang, Y.B.;Al-Omari, I.A.;Sellmyer, D.J.
    • Journal of the Korean Magnetics Society
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    • v.5 no.5
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    • pp.702-709
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    • 1995

  • In this paper we review recent work in our laboratory on nanocomposite CoSm-based films including CoSm with Cr underlayer (CoSm//Cr), exchange-coupled magnetic films consisting of CoSm and FeCo layers (CoSm/FeCo), and CoSm multilayers with nonmagnetic spacing layers of SmO (CoSm/SmO). The emphasis is on detailed investigations of microstructure and magnetic properties for CoSm//Cr films, exchange-spring effects for CoSm/FeCo films, and interlayer effects for (CoSm/ SmO) multilayers.

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Mechanism analysis of Scintillation in Rear Projection TVs

  • KAGOTANI, Akihito;KAIZUKA, Tomoyoshi;IWATA, Satoshi;SHIMIZU, Yuichiro;MORONAGA, Kohei;TAKAHASHI, Susumu;MASUTOMI, Osamu
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.1239-1242
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    • 2006

  • Scintillation that is grainy patterns appeared on a screen has been one of a biggest issues in a rear projection TVs. In this paper, with focusing on the average size of random particle, it was proved that the particle size of calculated speckle and the one of measured scintillation are almost the equal. This result shows speckle phenomenon is an important factor of scintillation.

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