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Search Results: Records 1-8 displayed on this page of 8
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Oral presentation

Whole-body measurements for people living in Fukushima prefecture

Nakagawa, Takahiro; Takada, Chie; Kanai, Katsuta; Murayama, Takashi; Miyauchi, Hideaki; Suzuki, Takehiko; Sato, Yoshitaka; Ezaki, Hiroko; Imahashi, Atsushi; Isozaki, Kohei; et al.

no journal, , 

no abstracts in English

Oral presentation

Study on the influences of deposits on the filter for air radioactive contamination monitoring, 2; Verification of the computational model through hot testing

Sasaki, Kazuki; Tomioka, Akifumi; Kato, Tatsuki; Hirato, Misaki; Yamashita, Daichi; Imahashi, Atsushi; Yoshida, Tadayoshi

no journal, , 

no abstracts in English

Oral presentation

Study on the influences of deposits on the filter for air radioactive contamination monitoring, 3; Evaluation of the influences of deposits using computational simulation

Kato, Tatsuki; Tomioka, Akifumi; Sasaki, Kazuki; Hirato, Misaki; Yamashita, Daichi; Imahashi, Atsushi; Yoshida, Tadayoshi

no journal, , 

no abstracts in English

Oral presentation

Study of method of measurement of the $$beta$$-ray 3mm dose equivalent and protection measures of the lens of eyes, 1; Ionization chamber

Takimoto, Misaki; Yamazaki, Takumi; Imahashi, Atsushi; Hoshi, Katsuya; Kawasaki, Takashi; Yoshida, Tadayoshi; Takada, Chie; Tsujimura, Norio; Okada, Kazuhiko; Ishikawa, Hisashi

no journal, , 

no abstracts in English

Oral presentation

Evaluation of work management system using wearable device in Tokai Reprocessing Plant

Imahashi, Atsushi; Nakamura, Keisuke; Watanabe, Yuki; Namiki, Atsushi; Takahashi, Yoshiharu*; Kinugawa, Nobuyuki*

no journal, , 

no abstracts in English

Oral presentation

Observable counting rate limits of radiation detectors used in stack monitors

Imahashi, Atsushi; Hosomi, Kenji; Fujisawa, Makoto; Takada, Chie

no journal, , 

no abstracts in English

Oral presentation

Effective dealing with aging alpha dust monitors

Imahashi, Atsushi; Sagawa, Naoki; Kanazawa, Nobuyuki*; Tamura, Toshinobu*; Hosomi, Kenji; Takashima, Hideki

no journal, , 

Alpha dust monitors are used for continuous measurering of airborne alpha contamination in radiation control area in NCL JAEA. In case of emergency, alarm is issued to evacuate workers. However, number of false alarms due to degradation of equipment are increasing year by year, because the equipment has been used more than 30 years. Now, we are updating our old silicon detectors to new ion-implanted silicon detectors with high endurance. We are also installing new preamplifier cercuits which is strong against electrical noise. As a result, reliability of alpha dust monitors has been ensured. In this talk, a report about our effective deal with the aging equipment will be given.

Oral presentation

Study on the influences of deposits on the filter for air radioactive contamination monitoring, 1; Overall summary and investigation of deposits on the filter

Tomioka, Akifumi; Sasaki, Kazuki; Kato, Tatsuki; Hirato, Misaki; Yamashita, Daichi; Imahashi, Atsushi; Yoshida, Tadayoshi

no journal, , 

no abstracts in English

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