Search Results - "Nagao, Yuto"

Noninvasive imaging of hollow structures and gas movement revealed the gas partial‐pressure‐gradient‐driven long‐distance gas movement in the aerenchyma along the leaf blade to submerged organs in rice by Yin, Yong‐Gen, Mori, Yoshinao, Suzui, Nobuo, Kurita, Keisuke, Yamaguchi, Mitsutaka, Miyoshi, Yuta, Nagao, Yuto, Ashikari, Motoyuki, Nagai, Keisuke, Kawachi, Naoki

“…Summary Rice (Oryza sativa) plants have porous or hollow organs consisting of aerenchyma, which is presumed to function as a low‐resistance diffusion pathway…”
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First demonstration of multi-color 3-D in vivo imaging using ultra-compact Compton camera by Kishimoto, Aya, Kataoka, Jun, Taya, Takanori, Tagawa, Leo, Mochizuki, Saku, Ohsuka, Shinji, Nagao, Yuto, Kurita, Keisuke, Yamaguchi, Mitsutaka, Kawachi, Naoki, Matsunaga, Keiko, Ikeda, Hayato, Shimosegawa, Eku, Hatazawa, Jun

“…In the field of nuclear medicine, single photon emission tomography and positron emission tomography are the two most common techniques in molecular imaging,…”
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A novel estimation method of water-equivalent thicknesses of secondary particle tracks using secondary electron bremsstrahlung emitted from therapeutic ion beams for attenuation correction by Yamaguchi, Mitsutaka, Sakai, Makoto, Nagao, Yuto, Kikuchi, Mikiko, Arakawa, Kazuo, Kawachi, Naoki

“…Monitoring methods of therapeutic beams based on the measurement of secondary particles have been proposed and studied worldwide. Since secondary particles are…”
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Flow filtration/adsorption and simultaneous monitoring technologies of radiocesium 137Cs in river water by Enomoto, Kazuyuki, Hoshina, Hiroyuki, Kasai, Noboru, Kurita, Keisuke, Ueki, Yuji, Nagao, Yuto, Yin, Yong-Gen, Suzui, Nobuo, Kawachi, Naoki, Seko, Noriaki

“…[Display omitted] •Flow filtration/adsorption enabled effective collection of 137Cs from river water.•137Cs γ-rays can be detected simultaneously under…”
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A simulation study on reduction of the background component using veto counters for imaging of therapeutic proton beams by measuring secondary electron bremsstrahlung using a parallel-hole collimator by Yamaguchi, Mitsutaka, Nagao, Yuto, Kawachi, Naoki

“…A simulation study on reduction of a background (BG) component for an imaging method of therapeutic proton beams by measuring secondary electron bremsstrahlung…”
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Development of a cost-effective Compton camera using a positron emission tomography data acquisition system by Nagao, Yuto, Yamaguchi, Mitsutaka, Kawachi, Naoki, Watabe, Hiroshi

“…In nuclear-medical imaging, most clinically applied gamma rays have energies less than or equal to 511 keV. There is growing interest in the applications of…”
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Rice immediately adapts the dynamics of photosynthates translocation to roots in response to changes in soil water environment by Miyoshi, Yuta, Soma, Fumiyuki, Yin, Yong-Gen, Suzui, Nobuo, Noda, Yusaku, Enomoto, Kazuyuki, Nagao, Yuto, Yamaguchi, Mitsutaka, Kawachi, Naoki, Yoshida, Eiji, Tashima, Hideaki, Yamaya, Taiga, Kuya, Noriyuki, Teramoto, Shota, Uga, Yusaku

“…Rice is susceptible to abiotic stresses such as drought stress. To enhance drought resistance, elucidating the mechanisms by which rice plants adapt to…”
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Crosstalk Reduction Using a Dual Energy Window Scatter Correction in Compton Imaging by Sakai, Makoto, Parajuli, Raj Kumar, Kubota, Yoshiki, Kubo, Nobuteru, Yamaguchi, Mitsutaka, Nagao, Yuto, Kawachi, Naoki, Kikuchi, Mikiko, Arakawa, Kazuo, Tashiro, Mutsumi

“…Compton cameras can simultaneously detect multi-isotopes; however, when simultaneous imaging is performed, crosstalk artifacts appear on the images obtained…”
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Estimation of shifts of therapeutic carbon-ion beams owing to cavities in a polyethylene target by measuring prompt X-ray images by Yamaguchi, Mitsutaka, Yamamoto, Seiichi, Kitano, Maki, Kubota, Yoshiki, Sakai, Makoto, Akagi, Takashi, Nagao, Yuto, Kawachi, Naoki

“…We evaluated an estimation ability of shifts of therapeutic carbon-ion beams owing to cavities in a polyethylene target by measuring prompt X-rays emitted from…”
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A Simulation Study on Estimation of Bragg-Peak Shifts via Machine Learning Using Proton-Beam Images Obtained by Measurement of Secondary Electron Bremsstrahlung by Yamaguchi, Mitsutaka, Nagao, Yuto, Kawachi, Naoki

“…We investigated an estimation method of Bragg-peak shifts via machine learning using proton-beam images obtained by measurement of secondary electron…”
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Simulation evaluation on a compact monitor for gamma-emitting tracers in plant stems by Yamaguchi, Mitsutaka, Suzui, Nobuo, Nagao, Yuto, Kawachi, Naoki

“…Non-destructive monitoring of radioactivities derived from radioactive tracers at multiple points in plant stems can be used to evaluate the velocity of…”
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REDUCTION OF BACKGROUND COMPONENTS IN HEAVY-ION BEAM IMAGING WITH SECONDARY ELECTRON BREMSSTRAHLUNG by Tsuda, Michiko, Yamaguchi, Mitsutaka, Yabe, Takuya, Nagao, Yuto, Kawachi, Naoki, Sakai, Makoto, Kamiya, Tomihiro, Watabe, Hiroshi

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P091 / #192 - REDUCTION OF BACKGROUND COMPONENTS IN HEAVY-ION BEAM IMAGING WITH SECONDARY ELECTRON BREMSSTRAHLUNG by Tsuda, Michiko, Yamaguchi, Mitsutaka, Yabe, Takuya, Nagao, Yuto, Kawachi, Naoki, Sakai, Makoto, Kamiya, Tomihiro, Watabe, Hiroshi

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Fruit PET: 3-D imaging of carbon distribution in fruit using OpenPET by Kurita, Keisuke, Miyoshi, Yuta, Nagao, Yuto, Yamaguchi, Mitsutaka, Suzui, Nobuo, Yin, Yong-Gen, Ishii, Satomi, Kawachi, Naoki, Hidaka, Kota, Yoshida, Eiji, Takyu, Sodai, Tashima, Hideaki, Yamaya, Taiga

“…Research on the distribution and dynamics of photoassimilates in plants, especially those in fruits, is important for increasing food production. Positron…”
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IMAGING OF THERAPEUTIC CARBON-ION BEAMS IN A HUMAN-HEAD PHANTOM MEASURING PROMPT X-RAYS by Yamaguchi, Mitsutaka, Yamamoto, Seiichi, Kitano, Maki, Yabe, Takuya, Akagi, Takashi, Kataoka, Jun, Nagao, Yuto, Tsuda, Michiko, Watabe, Hiroshi, Kawachi, Naoki

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P095 / #293 - IMAGING OF THERAPEUTIC CARBON-ION BEAMS IN A HUMAN-HEAD PHANTOM MEASURING PROMPT X-RAYS by Yamaguchi, Mitsutaka, Yamamoto, Seiichi, Kitano, Maki, Yabe, Takuya, Akagi, Takashi, Kataoka, Jun, Nagao, Yuto, Tsuda, Michiko, Watabe, Hiroshi, Kawachi, Naoki

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Secondary-electron-bremsstrahlung imaging for proton therapy by Yamaguchi, Mitsutaka, Nagao, Yuto, Ando, Koki, Yamamoto, Seiichi, Toshito, Toshiyuki, Kataoka, Jun, Kawachi, Naoki

“…A feasibility study on an imaging technique of a therapeutic proton-beam trajectory using a gamma camera by measuring secondary electron bremsstrahlung (SEB)…”
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Astatine-211 imaging by a Compton camera for targeted radiotherapy by Nagao, Yuto, Yamaguchi, Mitsutaka, Watanabe, Shigeki, Ishioka, Noriko S., Kawachi, Naoki, Watabe, Hiroshi

“…Astatine-211 is a promising radionuclide for targeted radiotherapy. It is required to image the distribution of targeted radiotherapeutic agents in a patient's…”
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Beam range estimation by measuring bremsstrahlung by Yamaguchi, Mitsutaka, Torikai, Kota, Kawachi, Naoki, Shimada, Hirofumi, Satoh, Takahiro, Nagao, Yuto, Fujimaki, Shu, Kokubun, Motohide, Watanabe, Shin, Takahashi, Tadayuki, Arakawa, Kazuo, Kamiya, Tomihiro, Nakano, Takashi

“…We describe a new method for estimating the beam range in heavy-ion radiation therapy by measuring the ion beam bremsstrahlung. We experimentally confirm that…”
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Effect of number of views on cross-sectional Compton imaging: A fundamental study with backprojection by Sakai, Makoto, Parajuli, Raj Kumar, Kikuchi, Mikiko, Yamaguchi, Mitsutaka, Nagao, Yuto, Kawachi, Naoki, Arakawa, Kazuo, Nakano, Takashi

“…•We examined the point spread function of a cross-sectional Compton image.•The effect of the number of views was also examined.•The double Lorentzian function…”
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