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Journal Articles

Quantum beams open up the future, 2

Namba, Hideki; Tanaka, Atsushi; Ito, Hisayoshi

Nihon Genshiryoku Gakkai-Shi ATOMO$$Sigma$$, 50(12), p.785 - 789, 2008/12

The outline of the quantum beam applied research, which attracts world-wide attention in recent years as a key technology for innovation, was introduced in the previous review article. The researches using charged particles and radio-isotopes (RIs), namely with $$gamma$$ rays, electron beams and ion beams, have the longest history in the application of quantum beam technology, and the results were used in wide range of activities in the fields of industry, agriculture and health care, as well as academic field. In this paper, the applications using charged particles and RIs in the fields of biotechnology, medical application, environment and energy will be introduced.

Journal Articles

Characteristics study on suspended fine particles in aqueous phenol solution formed by electron beam irradiations

Taguchi, Mitsumasa; Zennyoji, Yoshihiro*; Takigami, Machiko*; Baldacchino, G.*; Kimura, Atsushi; Hiratsuka, Hiroshi*; Namba, Hideki; Kojima, Takuji

Radiation Physics and Chemistry, 75(5), p.564 - 571, 2006/03

 Times Cited Count:6 Percentile:41.45(Chemistry, Physical)

The suspended fine particles formed in aqueous phenol solution under high dose irradiation were studied using the MeV electron beam and $$^{60}$$Co $$gamma$$-ray irradiations. The fine particle's size was 100-800 nm in diameter and became bigger at higher dose and lower dose rate. The distributions of the particle size became narrower for irradiation at higher dose rate. The fine particles were regarded to consist of molecules of about 1.9$$times$$10$$^{2}$$ molecular weight.

Journal Articles

Study of radiation-induced primary process by ion pulse radiolysis

Yoshida, Yoichi*; Yang, J.*; Kondo, Takafumi*; Seki, Shuhei*; Kozawa, Takahiro*; Tagawa, Seiichi*; Shibata, Hiromi*; Taguchi, Mitsumasa; Kojima, Takuji; Namba, Hideki

JAEA-Review 2005-001, TIARA Annual Report 2004, p.183 - 185, 2006/01

A heavy-ion-pulse radiolysis technology was developed using a single-photon-counting system. In the system, the ion beam was injected a thin scintillator before irradiating the sample. The light emitted from the scintillator by the ion irradiation was used as analyzing source to detect the absorption of primary species in water. Measurement of time-dependent absorption of hydrated electrons in water was achieved using the system, which demonstrates the usefulness of this technique.

Journal Articles

Decomposition of ${it p}$-nonylphenols in water and elimination of their estrogen activities by $$^{60}$$Co $$gamma$$-ray irradiation

Kimura, Atsushi; Taguchi, Mitsumasa; Otani, Yoshimi*; Takigami, Machiko; Shimada, Yoshitaka*; Kojima, Takuji; Hiratsuka, Hiroshi*; Namba, Hideki

Radiation Physics and Chemistry, 75(1), p.61 - 69, 2006/01

 Times Cited Count:13 Percentile:65.83(Chemistry, Physical)

Decomposition of ${it p}$-Nonylphenols (NPs) in water at 1 $$mu$$mol dm$$^{-3}$$ was decreased exponentially with absorbed dose when NPs were irradiated by $$^{60}$$Co$$gamma$$-rays. Two products having molecular weight of 236, presumably OH adducts of NPs, were detected by LC-MS analyses. The elimination of estrogen activity of aqueous NPs solution including such irradiation products at 5000 Gy (J kg$$^{-1}$$) was confirmed by the yeast two hybrid assay. These results should expand the application of ionizing radiation to the treatment of NPs.

JAEA Reports

Decomposition of $$it p$$-nonylphenols in water by $$^{60}$$Co $$gamma$$-ray irradiation

Kimura, Atsushi; Taguchi, Mitsumasa; Kojima, Takuji; Hiratsuka, Hiroshi*; Namba, Hideki

JAERI-Research 2004-018, 49 Pages, 2005/01

JAERI-Research-2004-018.pdf:6.6MB

no abstracts in English

Journal Articles

Primary process of radiation chemistry studied by ion pulse radiolysis

Yoshida, Yoichi*; Yang, J.*; Saeki, Akinori*; Tagawa, Seiichi*; Shibata, Hiromi*; Namba, Hideki; Kojima, Takuji; Taguchi, Mitsumasa

JAERI-Review 2004-025, TIARA Annual Report 2003, p.143 - 144, 2004/11

no abstracts in English

Journal Articles

Radiation-induced decomposition of trace amounts of 17 $$beta$$-estradiol in water

Kimura, Atsushi; Taguchi, Mitsumasa; Arai, Hidehiko*; Hiratsuka, Hiroshi*; Namba, Hideki; Kojima, Takuji

Radiation Physics and Chemistry, 69(4), p.295 - 301, 2004/03

 Times Cited Count:26 Percentile:82.77(Chemistry, Physical)

no abstracts in English

Journal Articles

Electron beam applications to flue gas treatment

Namba, Hideki

Charged Particle and Photon Interactions with Matter, p.729 - 742, 2003/11

no abstracts in English

Journal Articles

Primary process of radiation chemistry studied by ion pulse radiolisys

Yoshida, Yoichi*; Yang, J.*; Seki, Shuhei*; Saeki, Akinori*; Tagawa, Seiichi*; Shibata, Hiromi*; Taguchi, Mitsumasa; Kojima, Takuji; Namba, Hideki

JAERI-Review 2003-033, TIARA Annual Report 2002, p.145 - 146, 2003/11

no abstracts in English

Journal Articles

Chemical effects of heavy ion beams on organic materials

Koizumi, Hitoshi*; Ichikawa, Tsuneki*; Taguchi, Mitsumasa; Kobayashi, Yasuhiko; Namba, Hideki

Nuclear Instruments and Methods in Physics Research B, 206, p.1124 - 1127, 2003/05

 Times Cited Count:8 Percentile:50.24(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Yield of acridine C-radical produced by irradiation with energetic heavy ions

Taguchi, Mitsumasa; Moriyama, Masahiro*; Namba, Hideki; Hiratsuka, Hiroshi*

Radiation Physics and Chemistry, 64(2), p.115 - 122, 2002/05

 Times Cited Count:4 Percentile:29.25(Chemistry, Physical)

no abstracts in English

Journal Articles

The Effect of radiation to materials

Namba, Hideki

Enerugi Rebyu, 22(4), p.8 - 10, 2002/04

no abstracts in English

Journal Articles

Flue gas treatment

Namba, Hideki

Hoshasen Riyo Ni Okeru Saikin No Shimpo, p.162 - 172, 2000/06

no abstracts in English

Journal Articles

Effect of specific energy of heavy ions for 1,2,4,5-tetracyanobenzene radical anion formation

Taguchi, Mitsumasa; Matsumoto, Yuichi*; Moriyama, Masahiro*; Namba, Hideki; Aoki, Yasushi; Hiratsuka, Hiroshi*

Radiation Physics and Chemistry, 58(2), p.123 - 129, 2000/04

 Times Cited Count:6 Percentile:42.66(Chemistry, Physical)

no abstracts in English

Journal Articles

Energy distribution around 175MeV Ar ion path in argon at the density of water

Taguchi, Mitsumasa; Namba, Hideki; Aoki, Yasushi*; Furukawa, Katsutoshi; Ono, Shinichi*

Radiation Physics and Chemistry, 55(5-6), p.511 - 514, 1999/00

 Times Cited Count:4 Percentile:34.81(Chemistry, Physical)

no abstracts in English

Journal Articles

Predicted radiolysis yield in a Fricke solution irradiated with various heavy ions

Ono, Shinichi*; Furukawa, Katsutoshi; Taguchi, Mitsumasa; Namba, Hideki; Watanabe, Hiroshi

Radiation Physics and Chemistry, 55(5-6), p.503 - 506, 1999/00

 Times Cited Count:7 Percentile:49.7(Chemistry, Physical)

no abstracts in English

Journal Articles

Chemical tracks of heavy ions for 1,2,4,5-tetracyanobenzene anion radical formation

Taguchi, Mitsumasa; Matsumoto, Yuichi*; Namba, Hideki; Aoki, Yasushi; Hiratsuka, Hiroshi*

Nuclear Instruments and Methods in Physics Research B, 134(3-4), p.427 - 430, 1998/00

 Times Cited Count:5 Percentile:73.79(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Electron beam treatment of lignite-burning flue gas with high concentrations of sulfur dioxide and water

Namba, Hideki; Hashimoto, Shoji; Tokunaga, Okihiro; *

Radiation Physics and Chemistry, 53(6), p.673 - 681, 1998/00

 Times Cited Count:11 Percentile:66.43(Chemistry, Physical)

no abstracts in English

Journal Articles

Radical formation in the radiolysis of solid adipic acid by $$gamma$$-rays and heavy ions

*; Taguchi, Mitsumasa; Namba, Hideki; *; *

Nuclear Instruments and Methods in Physics Research B, 132, p.633 - 638, 1997/00

 Times Cited Count:5 Percentile:46.16(Instruments & Instrumentation)

no abstracts in English

64 (Records 1-20 displayed on this page)