Time-dependence of differential G-values of OH radicals in water under Ne ion radiolysis

Taguchi, Mitsumasa; Kojima, Takuji

JAEA-Review 2005-001, TIARA Annual Report 2004, p.181 - 182, 2006/01

https://jopss.jaea.go.jp/pdfdata/JAEA-Review-2005-001-p0127-p0267.pdf

The yields of OH radicals in water containing phenol have been investigated for several ten MeV/n C ion and Ne ion having the same LET value, as a function of the residual ion energy at the specific depth in water. In this study, beside such energy dependence, the dependence of reaction time of OH radical yield was examined by changing the concentration of phenol as solute. The defferential G'-values of OH radicals, those G-values per kinetic energy of ions increase with specific energy of Ne ions. The G'-value just after irradiation(1.5ns) is relatively high but become lower with reaction time to be the value (2.7) obtained for Co -rays. It suggests the diffusion behavior of OH radicals locally induced in water.

Application of electron beams for the treatment of VOC streams

Hirota, Koichi; Sakai, Hiroki*; Washio, Masakazu*; Kojima, Takuji

Industrial & Engineering Chemistry Research, 43(5), p.1185 - 1191, 2004/03

https://doi.org/10.1021/ie0340746

Twenty volatile organic compounds (VOCs) were irradiated with electron beams in laboratory scale to obtain an electron-beam energy required for a 90% treatment. The experiments showed that the energy was related with the chemical structure and roughly estimated from rate constants for reactions with OH radicals. The cost analysis revealed that the unification of a self-shielding electron accelerator with a reactor could reduce the capital cost for an electron-beam system. Electron-beam technology is a promising method for the treatment of VOCs.

Reaction mechanisms of silicon carbide fiber synthesis by heat treatment of polycarbosilane fibers cured by radiation, II; Free radical reaction

Sugimoto, Masaki; *; Okamura, K.*; Seguchi, Tadao

Journal of the American Ceramic Society, 78(7), p.1849 - 1852, 1995/00

https://doi.org/10.1111/j.1151-2916.1995.tb08898.x

no abstracts in English

Development of technique in radiation treatment of water

;

Radioisotopes, 34(10), p.570 - 579, 1985/00

https://doi.org/10.3769/radioisotopes.34.10_570

no abstracts in English

Carbon sources and formation mechanisms of organic iodides in nitric acid solutions

Saeki, Masakatsu; *; Tachikawa, Enzo

Int.J.Appl.Radiat.Isot., 25(9), p.407 - 414, 1974/09

https://doi.org/10.1016/0020-708X(74)90021-0

no abstracts in English

Measurements of short-lined species under Irradiation -A Rapid Scan Spectrrrophotometer for ob taining opticalAbsorption spectra

Ono, Shinichi; ; *; ;

JAERI 1217, 17 Pages, 1971/12

JAERI-1217.pdf:1.43MB

no abstracts in English