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Yoshitomi, Hiroshi
FBNews, (557), p.1 - 5, 2023/05
no abstracts in English
Tanimura, Yoshihiko
FBNews, (548), p.1 - 5, 2022/08
In the situation of a severe nuclear accident, radioiodine monitoring in thyroid should be performed for a large number of people immediately after accident. The portable thyroid dose monitoring system with the radiation shield which can be used in a high dose rate condition has been developed. In this paper, the outline of the monitoring system and the performance test results using the system will be described.
Fujii, Yutaka*; Takada, Chie
FBNews, (540), p.7 - 11, 2021/12
no abstracts in English
Ieda, Junichi
FBNews, (528), p.1 - 5, 2020/12
no abstracts in English
Ishida, Junichiro
FBNews, (446), p.1 - 5, 2014/02
no abstracts in English
Sanada, Yukihisa
FBNews, (432), p.7 - 11, 2012/12
no abstracts in English
Hashimoto, Kazuyuki
FBNews, (420), p.1 - 5, 2011/12
no abstracts in English
Kono, Takahiko; Ogino, Haruyuki*; Yoshitomi, Hiroshi; Fujiwara, Keiko*; Moriya, Koichi*
FBNews, (410), p.7 - 12, 2011/02
no abstracts in English
Kawamura, Hiroshi
FBNews, (406), p.3 - 7, 2010/10
In June of this year, Japanese Government announced 14 specialized projects of advanced research infrastructure in order to promote basic as well as applied researches. In the program, development of user-friendly environment especially for young and female researchers is highlighted. One of these 14 projects, birth of the nuclear techno-park with the JMTR is selected, then new irradiation facilities and PIE equipments will be installed up to FY 2013 at least.
Hiroki, Akihiro
FBNews, (394), p.3 - 7, 2009/10
no abstracts in English
Endo, Akira
FBNews, (387), p.8 - 12, 2009/03
no abstracts in English
Torii, Tatsuo
FBNews, (386), p.6 - 10, 2009/02
In recent years, increases of 
-rays seemed to be caused by thunderstorm activities have been observed during winter thunderstorms in Japan. Intense radiation during thunderstorms observed so far can be classified into two types. One is an instantaneous radiation burst lasts for no more than a few milliseconds, it is seemed that the bursts are produced in the process of lightning discharge. The other is the gradual fluctuations, last for a few to several tens of seconds, which are considered to be caused in a region of intense electric field within the thundercloud. In addition to the observed results during winter thunderstorms, the runaway breakdown thought to be triggering by the high energy radiation is outlined.
Tanaka, Atsushi
FBNews, (375), p.1 - 5, 2008/03
In the field of biotechnology and medical application, functional analysis of proteins involved in DNA repair and replication has been progressed. The ion beam breeding technique, which was developed in JAEA for the first time in the world as a new mutation induction technology, has been applied for many varieties of plants and microorganisms such as flower, crop, vegetable, yeast, alga and fungus. The collimating heavy-ion microbeam system at JAEA-Takasaki has provided target irradiation of heavy charged particles to biological material at atmospheric pressure using a minimum beam size 5 mm in diameter. No-invasive imaging methods are powerful tools for biology and medical diagnosis. The Positron Emitting Tracer Imaging System (PETIS) is one of such methods and it visualizes the distribution of positron-emitting radioisotope in intact plants like a video camera in order to understand plant nutrition. The in-air micro-PIXE system has also been used for investigation of elemental analysis in a cell for medical diagnosis such as Asbestos. A new radionuclide for medicine such as Cu-64 and Br-76, was produced by using AVF cyclotron and studied for the diagnosis of cancer by positron emission tomography, PET.
Ito, Hisayoshi
FBNews, (374), p.1 - 6, 2008/02
The contribution of radiation application technology to our daily life is summarized. Especially industrial applications of radiation like ion-beams, electron-beams, and -rays are described and some examples of such applications are introduced.
Nakashima, Hiroshi
FBNews, (368), p.12 - 15, 2007/08
This review explains the origin of the radiation from viewpoints of a science history, a natural science, the source of surroundings and laws for the beginner on the work of radiation protection in the future. In a historical viewpoint, it explains the history of the radiation and the radioactivity discovery and the knowledge of the radiation and radioactivity at the present age. And it explains a scientific definition and the kind of the radiation and the radioactivity in radiation protection in the viewpoint in a natural science. Moreover, it goes back the history of space and the earth on the source of the natural radiation, and the kinds and their use on an artificial radiation source are both described. Furthermore, it explains the definition and its problem of the radiation on radiation protection in the law. Finally, the interpretation of the radiation and the radioactivity is easily indicated as a worker on radiation protection.
Kurihara, Osamu
FBNews, (349), p.7 - 11, 2006/01
no abstracts in English
Yamaguchi, Yasuhiro
FBNews, (345), p.1 - 3, 2005/09
no abstracts in English
