Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Tamada, Masao
Genshiryoku Nenkan 2016, p.148 - 152, 2015/10
Takasaki Advanced Radiation Research Institute (TARRI) was established in April 1963. There are irradiation facilities of quantum beam such as ion, electron, Co-60 
-rays. TARRI has researched as complementary utilization together with other quantum beams such as neutron, synchrotron radiation, etc. as a part of the quantum beam platform. Recent technology transfer are outcomes of mutation-breeding sake yeast for quality sake brewed from the finest rice and cesium removal adsorbent for cartridge-type filters. Radiation-induced crosslinked resin was commercialized recently as a school teaching material. Dissemination of radiation technology has been continued through outreach activities.
Yamamoto, Yoichi
Isotope News, (736), p.31 - 33, 2015/08
The Takasaki radionuclide (RN) station for the Comprehensive Nuclear-Test-Ban Treaty (CTBT) has been in operation for monitoring of radioactive noble gases (radioxenon) by the Japan Atomic Energy Agency (JAEA) since 2007, first as a test run prior to receiving the certification. The noble gas system in the station was certified by the CTBT Organization (CTBTO) on December 19, 2014. Monitoring of radioxenon is expected to have a particularly valuable role in detection of an underground nuclear test. The Takasaki RN station detected radioxenon isotopes simultaneously with radioactive concentration exceeding normal background range in April, 2013. This abnormal event was identified as being associated with the nuclear test declared by North Korea in February, 2013. Since the Takasaki RN station is located at the east end of Asia, it is receiving widespread international attention as the station for radionuclides dispersed by the westerlies.
Shinohara, Nobuo; Inoue, Yoji; Uchikoshi, Takako*; Oda, Tetsuzo*; Kumata, Masahiro; Kurosawa, Yoshiaki; Hirota, Naoki*; Hokida, Takanori; Nakahara, Yoshinori*; Yamamoto, Yoichi
Dai-25-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, p.51 - 58, 2005/00
The Japan Atomic Energy Research Institute (JAERI) conducts researches and developments related to Comprehensive Nuclear-Test-Ban Treaty (CTBT) on the basis of Japan's pragmatic and progressive efforts toward peaceful use of atomic energy and non-proliferation with the goal of realizing a peaceful and safe world free from nuclear weapons. The Treaty aims for the establishment of a global verification regime comprising an International Monitoring System (IMS) and the JAERI has engaged in the following activities: construction and operation of the radionuclide monitoring stations at Okinawa (RN37) and Takasaki (RN38) and the certified radionuclide laboratory at Tokai (RL11) as specified in Annex 1 of CTBT Protocol, and preparation of the National Data Center at Tokai (JAERI NDC). Research activities of JAERI related to the CTBT verification regime are presented in the paper. The subjects of this presentation are (1) an overview of the CTBT verification regime, (2) construction and operation of RN37, RN38 and RL11, and (3) preparation of the JAERI NDC for radionuclide data.
Kumata, Masahiro; Oda, Tetsuzo; Miyamoto, Yutaka; Uchikoshi, Takako*; Nakahara, Yoshinori; Yamamoto, Yoichi; Hokida, Takanori; Hirota, Naoki*; Inoue, Yoji; Shinohara, Nobuo
Dai-23-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, p.39 - 44, 2002/12
The International Monitoring System (IMS) will be established across the world to verify compliance with the Comprehensive Test Ban Treaty (CTBT). The IMS will be capable of detecting and identifying nuclear explosions of detonated within the atmosphere, underwater and underground. 321 monitoring stations will be set around the world as a monitoring network of the IMS. The four technologies of seismology, hydroacoustic, infrasound, and radionuclide will be used for monitoring purposes. In order to build the radionuclide monitoring network, 80 radionuclide stations were chosen. Particles in the atmosphere are collected on a filter at each station to measure radioactivity by a HP-Ge detector. Further, 40 out of these 80 stations will be equipped with an automatic radioactive noble gas sampler/analyzer. The JAERI is establishing infrastructure to host radionuclide air monitoring equipment for two raionuclide stations in Japan. This paper presents the current status of the establishment and promising performance of the stations in Japan.
Hagiwara, Miyuki
Isotope News, (442), p.2 - 6, 1991/04
no abstracts in English
March1976)JAERI-M 6548, 76 Pages, 1976/05
no abstracts in English
Tamada, Masao
no journal, ,
Takasaki advanced radiation research institute is a preeminent institute in the world since three irradiation research facilities of ion beam, electron beam, X-ray can be available. Industrial applications in the field of environment, energy, health care, and biotechnology have been researched for half over a century by means of radiation processing or quantum beam technology. We will intend to pioneer newly expected areas from society and aim at the technology transfer of our technology to end-users.
Tamada, Masao
no journal, ,
Takasaki advanced radiation research institute (TARRI), Japan Atomic Energy Agency (JAEA) was established as a core institute for radiation chemistry in 1963. In TARRI there are three major irradiation facilities of -ray, electron beam and ion beam which are used for application research in the field of materials science and biotechnology. Concerning the graft polymerization, battery separator membrane, NH
removal filter, trace metal filter for semiconductor cleaning agent, etc. were commercialized owing to the higher performance than those of market products. Technology transfer of grafting requires needs of end users, utilization of advantages of radiation processing, and economical feasibility. If one of these three subjects is not realized, the technology transfer faces to the severe obstacle.
Tomita, Yutaka; Kumata, Masahiro; Wakabayashi, Shuji; Kijima, Yuichi; Yamamoto, Yoichi; Oda, Tetsuzo
no journal, ,
Yamamoto, Yoichi; Kijima, Yuichi; Oda, Tetsuzo
no journal, ,
The Japanese NDC-2 estimated the movement of virtual radioactive plume by the Atmospheric Transport Modelling (ATM) simulations with regard to the DPRK 2016 event. The simulations were done in two hypothetical cases of coincident and delayed emission of radionuclides. The NDC-2 decided which IMS radionuclide stations should be monitored based on the simulation results. As the result, no radionuclides generated from the nuclear explosion were found in any IMS data obtained from the selected radionuclide stations in January. However, xenon-133 with high activity concentration above the normal background levels was detected 5 times at the Takasaki station in the middle of February. The NDC-2 estimated the location of emission source of the Xe-133 by ATM backward tracking simulations. Some ATM simulations and the analysis results by the NDC-2 are shown in the presentation.
Tomita, Yutaka; Kijima, Yuichi; Furuno, Akiko; Yamamoto, Yoichi
no journal, ,
The Japan Atomic Energy Agency (JAEA) has operated two radionuclide stations which are Takasaki radionuclide station (RN38) and Okinawa radionuclide station (RN37) for the CTBT (Comprehensive Nuclear- Test-Ban Treaty) International Monitoring System (IMS). RN38 was built in the Takasaki Advanced Radiation Research Institute of the National Institutes for Quantum and Radiological Science and Technology (QST) in 2002. Radioactivity of particulate radionuclides and radioxenon gases are measured at RN38 by using a Radionuclide Aerosol Sampler / Analyzer (RASA) and a Swedish Automatic Unit for Noble Gas (SAUNA) respectively. It was worthy of special mention that the SAUNA of RN38 detected the radioxenons which were related to the DPRK-3 event in 2013. RN37 was installed in a renovated facility at the Okinawa Tracking and Communication Station of the Japan Aerospace Exploration Agency (JAXA) in 2006. It measures only radioactivity of particulate radionuclides by using a RASA. JAEA contributes to the CTBT international verification regime through these activities. Operation and some monitoring results of both radionuclide stations will be reported in this presentation.
Tomita, Yutaka; Furuno, Akiko; Yamamoto, Yoichi
no journal, ,
Various restrictions under the COVID-19 crisis have been imposed on the operation and maintenance of the radionuclide stations of RN37 and RN38 in Japan. We will report on how JAEA is working with PTS, manufacturers of RASA and SAUNA, and local operators in order to overcome this challenge.
