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Since 1977, the Japan Atomic Energy Agency (JAEA) has been collecting data on decay of atomic nuclei from around the world and making these data available to the public in the form of a Chart of the Nuclides. The most recent version is the Chart of the Nuclides 2014, announced by press release in March 2015, which included experimentally verified data on over 3,000 species of nuclei and theoretically predicted data for over 1,600 species of nuclei.
To date, some 4,500 copies of the Chart of the Nuclides 2014 have been distributed to major universities, vocational schools, high schools, research organizations, and companies in Japan, as well as to research institutions and other organization overseas, and the document has enjoyed widespread use.
In addition, the 2015 edition of the JAEA R&D Review, a publication that disseminates research accomplishments of the JAEA, presented on its cover a representative sample of the JAEA’s achievements in 2015. The Chart of the Nuclides 2014 is used for a range of purposes—including discussions of atomic nuclei on television programs1)—and has become an important tool for promoting understanding of the full picture of the atomic nucleus.
The JAEA sponsors a series of Special Public Courses at Universities and other Institutions (conducted at Osaka Prefecture University and elsewhere) as well as lectures on nuclear science aimed at the general public; we look forward to continuing to offer a variety of courses and seminars based on the Chart of the Nuclides.
1))Saturday, June 11, 2016, 8:15 AM: The NHK informational program A Deep Reading of This Week’s News devoted nearly 2 minutes to a discussion of the Chart of the Nuclides 2014 as part of a discussion of Nihonium, the first chemical element to be named in honor of Japan. The element Nihonium is formed by fusing atomic nuclei, and the Chart of the Nuclides helps readers to understand the nature of this process.
Press release (in Japanese): http://www.jaea.go.jp/02/press2014/p15031202/
Review in Nuclear Data News (in Japanese): http://wwwndc.jaea.go.jp/JNDC/ND-news/pdf112/No112-10.pdf
Webpage of the JAEA Chart of the Nuclides: http://wwwndc.jaea.go.jp/CN14/index.html
Nuclear Science and Engineering Center (NSEC) developed a new technology for rare earth recovery from optical lens waste material and so on with purity 99.999%(five nine) in cooperation with Asaka Riken Co. Ltd., based on â€œemulsion flow methodâ€ pursued by the center. By this method, less than one fifth cost and more than tenfold processing speed relative to conventional techniques can be achieved. Asaka Riken Co. Ltd. carries out demonstration plant tests in newly constructed research & development center.
Press release (Japanese only)
For the issues on marine driftage generated by the Great East Japan Earthquake, the forecast of tsunami driftage location was carried out by the cooperation among JAMSTEC, JAEA, JAXA, PARI, JMA-MRI, Kyoto University, JMSF. Simulation results have been released by the Ministry of the Environment (Homepage of the Ministry of the Environment).
Based on the meteorological and ocean predictions, release condition of marine driftage, etc. provided by the above organizations, JAEA conducted simulations of driftage location considering the effects by ocean current and wind speed by using the particle dispersion model (SEA-GEARN) developed by JAEA. The forecasts of tsunami driftage location after the Great East Japan Earthquake until October 2014 contribute to the consideration of countermeasures for marine driftage.
The fog deposition estimation scheme (a method to estimate the water input to the land surface due to fog deposition from atmospheric variables considering the land surface conditions) has been introduced in the Weather Research and Forecasting (WRF) Model as one of the physics options (WRF USERS PAGE: http://www.mmm.ucar.edu/wrf/users/wrfv3.5/updates-3.5.1.html). This fog deposition estimation scheme was developed by using simulation results of the land-surface model SOLVEG, which is included in a computer model system (SPEEDI-MP) for comprehensive simulations on the behavior of radioactive materials in a multiple environment of atmospheric, terrestrial and oceanic regions. The scheme allows the accurate calculation of ground surface water budget considering the fog deposition, and is expected to improve meteorological forecasts and analyses of water cycle.
Dr. Tatsuhiko Sato of Research Group for Radiation Protection received a plaque for the ICRP Publ.123 entitled â€œAssessment of Radiation Exposure of Astronauts in Spaceâ€. ICRP Publ. 123 is the first international document to define the radiological protection rules for astronauts, and will be incorporated into the regulations of the life-time dose limitation for astronauts determined by each country. Dr. Tatsuhiko Sato wrote the draft of ICRP Publ. 123, and developed the database of the fluence-to-dose conversion coefficients for cosmic-rays, which is annexed to ICRP Publ. 123.
Dr. Yoshiyuki Nemoto of Research Group for Radiation Materials Engineering received the first "Best Paper Award" from Japan Society of Maintenology for his paper, "A Study of Correlativity between IASCC Susceptibility and Magnetic Property of Stainless Steel", HOZENGAKU (Maintenology), Vol.7. No.4 January (2009) pp.57-68 (in Japanese).
The Particle and Heavy Ion Transport code System PHITS-2.24.L was registered with OECD/NEA Data Bank on January 21th, 2011. PHITS-2.24.L has a neutron cross section library based on the newest Japanese Evaluated Nuclear Data Library JENDL-4.0. The distribution from OECD/NEA Data Bank promotes the usage of the PHITS-2.24.L for the simulation of radiation behavior in the member countries of OECD/NEA Data Bank etc.
Dr. Takanori Sugawara of Research Group for Nuclear Transmutation Technology won an Award of Reactor Physics Division in 2010 from the Reactor Physics Division of the Atomic Energy Society of Japan (AESJ) for "Analytical study for possible reduction of uncertainties in reactor physics parameters for the transmutation system using critical experiment with MA".
Dr. Kojiro Shimojo of Research Group for Green Chemistry won a Young Investigator Researcher Award in 2010 from the Japan Society for Analytical Chemistry (JSAC) for "Analytical extraction separation systems based on ionic liquids and application to functional reaction media".
A new noise-reducing energy dispersive X-ray fluorescence analysis device for sulfur component contained within petroleum products is jointly developed by TANAKA SCIENTIFIC LTD and JAEA.
Dr. Yutaka Miyamoto et al. of Research Group for Radiochemistry was conferred award of Editors' Choice 2009 in Journal of Nuclear and Radiochemical Sciences (The Japan Society of Nuclear and Radiochemical Sciences). The title of paper is "Sequential Separation of U, Th, Pb, and Lanthanides with a Single Anion-Exchange Column."
Special group for RI generation technology using
The special group was established in Nuclear Engineering Research Collaboration Center on July 1, 2010 to develop technologies relevant to medical radioisotope (RI: such as 99Mo) production using accelerator neutrons. About one million medical diagnostic procedures have been carried out in Japan every year using radiopharmaceuticals with 99mTc (daughter nuclide of 99Mo). The group develops base technology for accelerator, chemical processing and labeled compound to advance domestic production of short-lived RI in collaboration with Chiyoda Technol Corporation, Fujifilm RI Pharma Coporation and Sumitomo Heavy Industries.
The newest Japanese Evaluated Nuclear Data Library JENDL-4.0 was just released on May 28th, 2010. The library is available from the web page of Nuclear Data Center, JAEA. The library is also available from other international centers: IAEA Nuclear Data Section, BNL NNDC. OECD/NEA Data Bank is also preparing to distribute the JENDL-4.0 from its web page. The distribution from those international centers promotes the usage of the JENDL-4.0 library in the world.