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Hirota, Koichi
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, p.923 - 941, 2010/12
Ionizing radiation is one of the advanced technologies for treating environmental pollutants. The technology is based on oxidation reactions with active species produced by the irradiation to media. When air is irradiated, many active species such as OH, O, and N
are produced. Among them, OH is the most important radical that can effectively oxidize harmful chemicals. On the other hand, OH and hydrated electron play roles in oxidation and reduction while treating organic compounds in water. Although 
ray irradiation is also an option for the treatment of various kinds of environmental pollutants, electron beam is preferable because maintaining an electron accelerator is easier and has better radiation security. On the basis of basic experiments, the pilot-scale and full-scale plants have been constructed around the world for the treatment of environmental pollutants such as NO
and SO, dioxin, VOC, and pollutants in wastewater.
Saito, Kimiaki
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, p.623 - 646, 2010/12
Hirade, Tetsuya
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, p.137 - 167, 2010/12
There are some advantages of using positrons for radiation chemistry research. One of these is annihilation. A positron annihilates with one of the electrons in condensed materials. The lifetimes of positrons in condensed materials are 100ps to 10ns. Therefore the positron annihilation will provide the information of reactions over these time scales. The second advantage is the bound state of a positron and an electron. It is called positronium (Ps). The formation of Ps is quite similar to the recombination of cations and free electrons. Hence it can provide information on very fast reactions. There have been many interesting researches performed with these advantages. The basic knowledge for positron experiments and some of these researches will be introduced in this chapter.
Tanaka, Atsushi; Hase, Yoshihiro
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, p.943 - 957, 2010/12
Hatano, Yoshihiko; Katsumura, Yosuke; Mozumder, A.*
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, 1045 Pages, 2010/12
The edition of this book has been motivated by strongly positive comments on the former edition of the book with a similar title "Charged Particle and Photon Interactions with Matter. Chemical, Physicochemical, and Biological Consequences with Applications.", eds. A.Mozumder and Y.Hatano, Marcel Dekker, New York (2004), which was motivated by a long term (1985-1995) IAEA-project to survey the basic research of the entitled subjects accomplished in the past 100 years after the big findings of ionizing radiation by Curie and Roentgen. The editors received soon after the publication of the former version the strongly positive comments on it from international academic communities asking them to edit further the latter version to survey further the recent advances with future perspectives, applications, and interfaces. Upon these requests, therefore, this book with 36 chapters has been edited.
Yamashita, Shinichi; Taguchi, Mitsumasa; Baldacchino, G.*; Katsumura, Yosuke
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, p.325 - 354, 2010/12
Irradiation effects induced by heavy ions are much different from those by low-LET radiations. Such distinctiveness has been applied to cancer therapy, surface processing, analytical techniques, and so on. However, detailed mechanism through which such distinctiveness appears has not been clarified yet. In this chapter, what have experimentally been found recently, especially within these five years, in water radiolysis with positively-charged atomic heavy ions are shown. Steady-state radiolysis studies and pulse radiolysis studies are separately summarized because these two approaches inherently involve own advantages and limitations. Gathering reported products yields and kinetics, track structures and intra-track dynamics are discussed. One of the most characteristic features of recent studies is that track-segment or -differential yields were intensively measured compared to earlier studies.
Lin, M.; Katsumura, Yosuke*
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, p.401 - 424, 2010/12
We're invited to write one chapter (chapter 15: Radiation Chemistry of High Temperature and Supercritical Water and Alcohols) for a book entitled "Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces" (publisher: CRC Press LLC), which is aimed to show the most recent progresses in radiation chemistry. The results of the studies on radiation chemistry of high temperature and supercritical water and alcohols obtained in the last 5 years are reviewed.
Yokoya, Akinari; Fujii, Kentaro; Shikazono, Naoya; Ukai, Masatoshi*
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, p.543 - 574, 2010/12
This review is one of the chapters of "Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces". In this review we will introduce recent advances in spectroscopic study of DNA damage induced by ionizing radiation using synchrotron radiation and ion particles. Further, studies of susceptibility of DNA damage to enzymatic repair-processes revealed by biochemical techniques, as well as mutation assay for E. coli cells, will also be described and discussed by comparing with previous simulation data.
Tamada, Masao; Maekawa, Yasunari
Charged Particle and Photon Interactions with Matter; Recent Advances, Applications, and Interfaces, p.737 - 759, 2010/12
Radiation processing such as crosslinking, graft polymerization, and degradation is a feasible technology to functionalize polymers. Distinctive points of these techniques were described from the viewpoint of versatile applications. In the crosslinking, polysaccharides, soluble cellulose derivatives, lead hydrogels for bedsore prevention mat, coolant, and water absorbent for livestock excrement treatment. Crosslinked poly-lactic acid is applicable for heat shrinkable tube and elastic film. Grafting can impart desired functions to the commercial trunk polymers. When the fibrous trunk polymer is selected, a metal adsorbent obtained realizes the high performance in flow rate for the collection of toxic and rare metal ions. Files such as fluoro-polymers and aromatic hydrocarbon polymers can be modified to highly durable fuel cell membranes. Degraded oligosaccharides induce the activity of plant growth promoter.
Fukuda, Mitsuhiro; Ito, Hisayoshi; Oshima, Takeshi; Saido, Masahiro; Tanaka, Atsushi
Charged Particle and Photon Interactions with Matter, p.813 - 859, 2003/11
An ion beam has been widely applied to a variety of research fields of materials, space, and bio-sciences. Notable results, which were hard to obtain in applications of a ray and an electron beam, have been produced by the ion beam application. Ion beams interacting with matter have such superior properties as highly localized ionization and excitation, production of secondary particles, implantation of different atoms, and nuclear transmutation of constituent atoms. Skillful utilization of the ion beam properties makes remarkable progress in creation of new materials and precise investigation of matters. The ion beam irradiation research facility, TIARA, was established in 1993 at JAERI for extensive applications of ion beams. An accelerator complex provides light to heavy ion beams with a broad energy range from keV to GeV. Various ion beam technologies pioneering the ion beam applications have been developed at TIARA. In this paper, new applications of accelerated ion beams to material, space, and biological science and engineering carried out mainly at TIARA are reviewed.
Namba, Hideki
Charged Particle and Photon Interactions with Matter, p.729 - 742, 2003/11
no abstracts in English