Refine your search:     
Report No.
 - 
Search Results: Records 1-18 displayed on this page of 18
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

A Phoswich alpha/beta detector for monitoring in the site of Fukushima Daiichi Nuclear Power Station

Morishita, Yuki; Takasaki, Koji; Kitayama, Yoshiharu; Tagawa, Akihiro; Shibata, Takuya; Hoshi, Katsuya; Kaneko, Junichi*; Higuchi, Mikio*; Oura, Masatoshi*

Radiation Measurements, 160, p.106896_1 - 106896_10, 2023/01

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

This study proposes a newly developed phoswich alpha/beta detector that can discriminate alpha and beta particles emitted from the alpha and beta contaminations in the FDNPS site. The phoswich alpha/beta detector is made up of two layers of scintillators that detect alpha and beta particles. The pulse shape discrimination (PSD) method was used to detect alpha particles in high beta particle and high gamma-ray (comparable to gamma-ray dose rate near the FDNPS reactor building) environments. Due to a 23.3% full width at half maximum (FWHM) energy resolution for alpha particles, the detector can be used to distinguish between nuclear fuel materials such as plutonium and its radon progeny (Po-214). Moreover, the detector could distinguish alpha particles from $$^{137}$$Cs gamma rays with a dose rate background up to 9.0 mSv/h. It is the first to demonstrate that the developed phoswich detector can be used to discriminate and measure alpha and beta particles of the actual contaminated FDNPS samples.

JAEA Reports

The Data-base of the radiation monitoring in Fukushima based on the comprehensive radiation monitoring plan

Abe, Tomohisa; Ogiya, Takashi*; Shibata, Katsuya*; Hanawa, Tatsuaki*; Sanada, Yukihisa

JAEA-Data/Code 2020-004, 280 Pages, 2020/08

JAEA-Data-Code-2020-004.pdf:3.91MB

After the accidents at Fukushima Daiichi Nuclear Power Station (FDNPS), Japan Atomic Energy Agency has carried on survey for distribution situation of radiation materials under the direction of the Ministry of Education, Culture, Sports, Science and Technology (later the Nuclear Regulatory Agency) from June 2011 to FY2019. This report is mainly summarized as data-base of air dose rate, integrated dose and radionuclide concentration of some types of environmental sample (airborne dust, soil, pine needles) in the radiation monitoring in Fukushima Prefecture (20 km far from FDNPS). The results of radiation monitoring were analyzed for temporal change at each measurement site under the unification format. Furthermore, the effective half-life and the dispersion at each location and sample were evaluated based on these big data.

Journal Articles

Dynamical behavior of human $$alpha$$-synuclein studied by quasielastic neutron scattering

Fujiwara, Satoru; Araki, Katsuya*; Matsuo, Tatsuhito; Yagi, Hisashi*; Yamada, Takeshi*; Shibata, Kaoru; Mochizuki, Hideki*

PLOS ONE (Internet), 11(4), p.e0151447_1 - e0151447_17, 2016/04

 Times Cited Count:24 Percentile:65.34(Multidisciplinary Sciences)

Journal Articles

Melting temperatures of the ZrO$$_{2}$$-MOX system

Uchida, Teppei; Hirooka, Shun; Sugata, Hiromasa*; Shibata, Katsuya*; Sato, Daisuke*; Kato, Masato; Morimoto, Kyoichi

Proceedings of International Nuclear Fuel Cycle Conference; Nuclear Energy at a Crossroads (GLOBAL 2013) (CD-ROM), p.1549 - 1553, 2013/09

Oral presentation

Measurement of melting points

Kato, Masato; Morimoto, Kyoichi; Kashimura, Motoaki; Abe, Tomoyuki; Uno, Hiroki*; Sugata, Hiromasa*; Tamura, Tetsuya*; Shibata, Katsuya*

no journal, , 

no abstracts in English

Oral presentation

Solidus and liquidus in MOX fuel, 2; Effects of O/M ratios on melting points of MOX fuel

Nakamichi, Shinya; Kato, Masato; Morimoto, Kyoichi; Kashimura, Motoaki; Abe, Tomoyuki; Sugata, Hiromasa*; Shibata, Katsuya*; Uno, Hiroki*; Tamura, Tetsuya*

no journal, , 

no abstracts in English

Oral presentation

Measurements of melting process in MOX fuels, 1; Solidus and liquidus in PuO$$_{2}$$-UO$$_{2}$$-AmO$$_{2}$$ system

Kato, Masato; Morimoto, Kyoichi; Nakamichi, Shinya; Kashimura, Motoaki; Abe, Tomoyuki; Sugata, Hiromasa*; Uno, Hiroki*; Shibata, Katsuya*; Tamura, Tetsuya*

no journal, , 

no abstracts in English

Oral presentation

Influence of self irradiation in MOX pellets stored over several decades

Komeno, Akira; Kato, Masato; Morimoto, Kyoichi; Kashimura, Motoaki; Abe, Tomoyuki; Sugata, Hiromasa*; Shibata, Katsuya*; Uno, Hiroki*; Tamura, Tetsuya*

no journal, , 

no abstracts in English

Oral presentation

Melting behavior of PuO$$_{2-X}$$

Kato, Masato; Morimoto, Kyoichi; Nakamichi, Shinya; Kashimura, Motoaki; Abe, Tomoyuki; Sugata, Hiromasa*; Uno, Hiroki*; Shibata, Katsuya*; Tamura, Tetsuya*

no journal, , 

no abstracts in English

Oral presentation

Thermal dependence of Density on Long-term stored MOX fuel; Variation of density and microstructure caused by heat treatment in MOX pellet stored for long term

Komeno, Akira; Kato, Masato; Morimoto, Kyoichi; Kashimura, Motoaki; Sugata, Hiromasa*; Shibata, Katsuya*; Uno, Hiroki*; Tamura, Tetsuya*

no journal, , 

no abstracts in English

Oral presentation

Property change and thermal recovery on plutonium and uranium mixed oxides by $$alpha$$ irradiation

Komeno, Akira; Kato, Masato; Morimoto, Kyoichi; Kashimura, Motoaki; Sugata, Hiromasa*; Shibata, Katsuya*; Tamura, Tetsuya*; Uno, Hiroki*

no journal, , 

no abstracts in English

Oral presentation

Property measurements of simulated debris prepared from UO$$_{2}$$ and Zircalloy-2, 2; Melting point measurement and microstructure

Uchida, Teppei; Sugata, Hiromasa*; Shibata, Katsuya*; Sato, Daisuke*; Morimoto, Kyoichi

no journal, , 

no abstracts in English

Oral presentation

Construction of a BNCT facility using an 8MeV high power proton linac in Ibaraki

Kobayashi, Hitoshi*; Kurihara, Toshikazu*; Matsumoto, Hiroshi*; Yoshioka, Masakazu*; Matsumoto, Noriyuki*; Kumada, Hiroaki*; Matsumura, Akira*; Sakurai, Hideyuki*; Hiraga, Fujio*; Kiyanagi, Yoshiaki*; et al.

no journal, , 

no abstracts in English

Oral presentation

Melting point measurement of specimens prepared from MOX-ZrO$$_{2}$$

Uchida, Teppei; Sugata, Hiromasa*; Shibata, Katsuya*; Sato, Daisuke*; Morimoto, Kyoichi

no journal, , 

no abstracts in English

Oral presentation

Spore of Funaria hygrometrica (moss) which exposed on the outer wall of the Pirs docking node of ISS for 13 months germinated

Takahashi, Yuichi*; Shibata, Shimpei*; Yokoyama, Jun*; Hashimoto, Hirofumi*; Yokobori, Shinichi*; Yamagishi, Akihiko*; Kawaguchi, Yuko*; Gusev, O.*; Narumi, Issei; Sato, Katsuya; et al.

no journal, , 

no abstracts in English

Oral presentation

Changes in the dynamics of human $$alpha$$-synuclein and its relation to propensity for amyloid fibril formation

Fujiwara, Satoru; Araki, Katsuya*; Matsuo, Tatsuhito; Yagi, Hisashi*; Yamada, Takeshi*; Shibata, Kaoru; Mochizuki, Hideki*

no journal, , 

Oral presentation

Quasielastic neutron scattering study of human $$alpha$$-synuclein; Implication for propensity for amyloid fibril formation

Fujiwara, Satoru; Araki, Katsuya*; Matsuo, Tatsuhito; Yagi, Hisashi*; Yamada, Takeshi*; Shibata, Kaoru; Mochizuki, Hideki*

no journal, , 

Oral presentation

Changes in the dynamics of human $$alpha$$-synuclein detected by neutron scattering

Fujiwara, Satoru; Araki, Katsuya*; Matsuo, Tatsuhito; Yagi, Hisashi*; Yamada, Takeshi*; Shibata, Kaoru; Mochizuki, Hideki*

no journal, , 

18 (Records 1-18 displayed on this page)
  • 1