Search Results - "Akira, Yoshikawa"

Recent R&D Trends in Inorganic Single‐Crystal Scintillator Materials for Radiation Detection by Nikl, Martin, Yoshikawa, Akira

“…In this review, the major achievements and research and development (R&D) trends from the last decade in the field of single crystal scintillator materials are…”
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Defect Engineering in Ce-Doped Aluminum Garnet Single Crystal Scintillators by Nikl, Martin, Kamada, Kei, Babin, Vladimir, Pejchal, Jan, Pilarova, Katerina, Mihokova, Eva, Beitlerova, Alena, Bartosiewicz, Karol, Kurosawa, Shunsuke, Yoshikawa, Akira

“…Mg-codoped Lu3Al5O12:Ce single crystal scintillators were prepared by a micropulling down method in a wide concentration range from 0 to 3000 ppm of Mg…”
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Key temperature-dependent characteristics of AlGaN-based UV-C laser diode and demonstration of room-temperature continuous-wave lasing by Zhang, Ziyi, Kushimoto, Maki, Yoshikawa, Akira, Aoto, Koji, Sasaoka, Chiaki, Schowalter, Leo J., Amano, Hiroshi

“…Although the pulsed operation of AlGaN-based laser diodes at UV-C wavelengths has been confirmed in the previous studies, continuous oscillation without…”
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Composition Engineering in Cerium-Doped (Lu,Gd)3(Ga,Al)5O12 Single-Crystal Scintillators by Kamada, Kei, Endo, Takanori, Tsutumi, Kousuke, Yanagida, Takayuki, Fujimoto, Yutaka, Fukabori, Akihiro, Yoshikawa, Akira, Pejchal, Jan, Nikl, Martin

“…The Ce-doped (Lu y Gd1–x )3(Ga y ,Al1–y )5O12 single crystals were grown by the micropulling down method. Their structure and chemical composition were checked…”
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Mechanical and thermoelectric properties of iridium-ruthenium alloy grown by the micro-pulling-down method by Murakami, Rikito, Kamada, Kei, Oikawa, Katsunari, Yoshikawa, Akira

“…•Ir-20Ru alloy wire was first time grown by the micro-pulling-down (μ-PD) method.•The wire fabrication of 47 m is a record length in the μ-PD method.•Annealing…”
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Development of simultaneous PET and Compton imaging using GAGG-SiPM based pixel detectors by Shimazoe, Kenji, Yoshino, Masao, Ohshima, Yusuke, Uenomachi, Mizuki, Oogane, Kenichiro, Orita, Tadashi, Takahashi, Hiroyuki, Kamada, Kei, Yoshikawa, Akira, Takahashi, Miwako

“…Positron emission tomography (PET) is considered an important and powerful tool for molecular imaging and medical diagnosis with its high sensitivity. Further,…”
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Crystal growth and luminescence properties of phenanthrene for neutron detection by Yamaji, Akihiro, Kurosawa, Shunsuke, Yoshikawa, Akira

“…•We grew phenanthrene crystals by the using the self-seeding vertical Bridgman technique.•The grown phenanthrene crystals were identified by powder XRD and…”
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Development of an ultrahigh-resolution radiation real-time imaging system to observe trajectory of alpha particles in a scintillator by Yamamoto, Seiichi, Hirano, Yoshiyuki, Kamada, Kei, Yoshikawa, Akira

“…The high-resolution imaging of alpha particles is required for the development of radio-compounds for targeted alpha-particle therapy or alpha emitter…”
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Ultrahigh resolution radiation imaging system using an optical fiber structure scintillator plate by Yamamoto, Seiichi, Kamada, Kei, Yoshikawa, Akira

“…High resolution imaging of radiation is required for such radioisotope distribution measurements as alpha particle detection in nuclear facilities or high…”
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Microstructure and thermoelectric properties of La-doped SrTiO3/TiO2 eutectic crystals grown by Micro-Pulling-Down method by Yokota, Yuui, Horii, Shigeru, Ogino, Hiraku, Yoshida, Yoshiyuki, Yoshikawa, Akira

“…•La-doped SrTiO3/TiO2 eutectic crystals were grown by a micro-pulling-down method.•Grown crystals were composed of the TiO2 rod phase in the SrTiO3 matrix…”
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Using low-temperature growth to resolve the composition pulling effect of UV-C LEDs by Yoshikawa, Akira, Zhang, Ziyi, Kushimoto, Maki, Aoto, Koji, Sasaoka, Chiaki, Amano, Hiroshi

“…One approach to improving the output power of ultraviolet (UV-C) light-emitting diodes (LEDs) is to adopt an electron-blocking layer (EBL) with a high barrier…”
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Use of YAP(Ce) in the development of high spatial resolution radiation imaging detectors by Yamamoto, Seiichi, Kamada, Kei, Yoshikawa, Akira

“…A scintillator with a high light output is considered to be required for the development of high spatial resolution radiation imaging detectors. In contrast to…”
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A study of Mg2+ ions effect on atoms segregation, defects formation, luminescence and scintillation properties in Ce3+ doped Gd3Al2Ga3O12 single crystals by Bartosiewicz, Karol, Markovskyi, Anton, Horiai, Takahiko, Szymański, Damian, Kurosawa, Shunsuke, Yamaji, Akihiro, Yoshikawa, Akira, Zorenko, Yuriy

“…•Mg2+ codoping effect on the atoms segregation in GAGG:Ce single crystal studied.•The formation of defects in Mg2+ and Ce3+ codoped GAGG crystals…”
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Growth, Microstructure, and Mechanical Properties of Co–Cr–Mo Crystal Fibers Fabricated from the Melt by Unidirectional Solidification by Yokota, Yuui, Nihei, Takayuki, Abe, Shoki, Yoshikawa, Akira

“…Many complicated forming processes are required to fabricate thin wires of Co–Cr–Mo (CCM) biomedical materials due to the poor workability of these materials…”
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Research on Efficient Fast Scintillators: Evidence and X‐Ray Absorption Near Edge Spectroscopy Characterization of Ce4+ in Ce3+, Mg2+‐Co‐Doped Gd3Al2Ga3O12 Garnet Crystal by Dantelle, Géraldine, Boulon, Georges, Guyot, Yannick, Testemale, Denis, Guzik, Malgorzata, Kurosawa, Shunsuke, Kamada, Kei, Yoshikawa, Akira

“…Herein, the most advanced oxide scintillator Ce3+, Mg2+‐co‐doped Gd3Al2Ga3O12 (GAGG) garnet host, grown using the Czochralski method is reported. The charge…”
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Development of an ultrahigh resolution real time alpha particle imaging system for observing the trajectories of alpha particles in a scintillator by Yamamoto, Seiichi, Yoshino, Masao, Kamada, Kei, Yajima, Ryuga, Yoshikawa, Akira, Nakanishi, Kohei, Kataoka, Jun

“…High-resolution imaging of alpha particles is required in the detection of alpha radionuclides in cells or small organs for the development of radio-compounds…”
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Scintillation of polyester fabric and clothing via proton irradiation and its utilization in surface imaging of proton pencil beams by Yamamoto, Seiichi, Yamashita, Tomohiro, Yoshino, Masao, Kamada, Kei, Yoshikawa, Akira, Nishio, Teiji, Kataoka, Jun

“…In the realm of radiation therapy, a conspicuous obstacle lies in the dearth of external observation concerning radiation beams aimed at the patient. While…”
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Relationship among muscle strength, muscle endurance, and skeletal muscle oxygenation dynamics during ramp incremental cycle exercise by Nemoto, Shinji, Nakabo, Tohru, Tashiro, Naonori, Kishino, Asami, Yoshikawa, Akira, Nakamura, Daisuke, Geshi, Eiichi

“…Peak oxygen uptake (VO 2 ), evaluated as exercise tolerance, is a strong predictor of life prognosis regardless of health condition. Several previous studies…”
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Volume of the right supramarginal gyrus is associated with a maintenance of emotion recognition ability by Wada, Sayaka, Honma, Motoyasu, Masaoka, Yuri, Yoshida, Masaki, Koiwa, Nobuyoshi, Sugiyama, Haruko, Iizuka, Natsuko, Kubota, Satomi, Kokudai, Yumika, Yoshikawa, Akira, Kamijo, Shotaro, Kamimura, Sawa, Ida, Masahiro, Ono, Kenjiro, Onda, Hidetoshi, Izumizaki, Masahiko

“…Emotion recognition is known to change with age, but associations between the change and brain atrophy are not well understood. In the current study atrophied…”
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Alkali earth co-doping effects on luminescence and scintillation properties of Ce doped Gd3Al2Ga3O12 scintillator by Kamada, Kei, Nikl, Martin, Kurosawa, Shunsuke, Beitlerova, Alena, Nagura, Aya, Shoji, Yasuhiro, Pejchal, Jan, Ohashi, Yuji, Yokota, Yuui, Yoshikawa, Akira

“…•The Mg and Ca co-doped Ce:GAGG single crystals were prepared by μ-PD method.•The scintillation decay curves were accelerated by Mg co-doping.•Dominant decay…”
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