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Dive into the research topics where Naoto Fujinami is active.

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Featured researches published by Naoto Fujinami.


Japanese Journal of Health Physics | 1994

Influence of Atmospheric Pressure and Temperature on Cosmic-Ray Intensity Observed with NaI (T1) Scintillation Monitor

Naoto Fujinami; Tetsuya Watanabe; Katsuzo Ibuki

Cosmic-ray count rates in the energy range above 3 MeV have been continuously observed with a 3″φ×3″ NaI (T1) scintillation detector at environmental radiation monitoring stations in Maizuru. Variations of cosmic-ray intensities were analyzed in relation to atmospheric pressure and temperature. The results indicated that an increase of 1hPa in atmospheric pressure decreased the count rate by 0.2%, and an increase of 1°C in atmospheric temperature at 500hPa level decreased the rate by 0.1%.


Journal of Geophysical Research | 1987

Variations in radon 222 daughter concentrations in surface air with atmospheric stability

Naoto Fujinami; Shinobu Esaka


Japanese Journal of Health Physics | 2009

Study of Radon Progeny Distribution and Radiation Dose Rate in the Atmosphere

Naoto Fujinami


Journal of Geophysical Research | 1988

Influence of solar radiation and heat emission on radon 222 daughter concentrations in surface air

Naoto Fujinami; Shinobu Esaka


International Congress Series | 2005

Results of Yangjiang study in China and an experience of Ramsar survey in Iran

Naoto Fujinami; Taeko Koga; Hiroshige Morishima; Tsutomu Sugahara


Japanese Journal of Health Physics | 1991

Seasonal Variation of Atmospheric Radon Daughter Concentration in Maizuru City

Naoto Fujinami; Shinobu Esaka


Japanese Journal of Health Physics | 2003

An Example of Radiation Detected from Patient Administered Radiopharmaceutical 99mTc with an Environmental Radiation Monitor

Naoto Fujinami; Tetsuya Watanabe; Tomonori Araki; Mika Mizumoto; Tsuyoshi Tsutsui


Japanese Journal of Health Physics | 1996

Behavior of Strontium-90 in Mugwort

Naoto Fujinami; Tetsuya Watanabe; Hideaki Tsuzuki; Katsuzo Ibuki


Japanese Journal of Health Physics | 1987

Monte Carlo Calculation of Gamma Radiation Field Due to Iodine-131 Released to the Environment

Naoto Fujinami; Shinobu Esaka; Susumu Minato


Japanese Journal of Health Physics | 2011

Assessment of Individual External Doses of Inhabitants in Ramsar, Iran

Naoto Fujinami; Taeko Koga; Hiroshige Morishima; Farideh Zakeri; Seiichi Nakamura; Kanji Torizuka; Tsutomu Sugahara

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Susumu Minato

Industrial Research Institute

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