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Sukegawa, Atsuhiko; Anayama, Yoshimasa*
Progress in Nuclear Science and Technology (Internet), 4, p.627 - 630, 2014/04
Flexible heat-resistant neutron and -ray shielding resins have been developed, which consists of polymer resin with boron powder or FeW powder. The resins were manufactured by a newly agitation technique of only by chemical reaction to Low-Cost radiation shielding resin. The neutron resin will be applied around ports of a vacuum vessel of superconducting tokamak device as an additional shielding material and decreased in an effect on neutron streaming of the device. The -ray resin will be suitable for a collimator to plasma diagnostics.
Sukegawa, Atsuhiko; Anayama, Yoshimasa*; Okuno, Koichi*; Sakurai, Shinji; Kaminaga, Atsushi
Journal of Nuclear Materials, 417(1-3), p.850 - 853, 2011/10
Times Cited Count:21 Percentile:82.72(Materials Science, Multidisciplinary)A flexible heat resistant neutron shielding material has been developed, which consists of polymer resin with 1 weight % boron. The neutron shielding performance of the developed resin, examined by the Cf neutron source is almost the same as that of the polyethylene. The outgas of H, HO, CO and CO from the resin have been measured at 250 C environment. The resin will be applied around the port of the vacuum vessel as an additional shielding material and prevented the effects on the neutron streaming of the superconducting tokamak device such as JT-60SA.
Sukegawa, Atsuhiko; Anayama, Yoshimasa*; Onishi, Seiki; Sakurai, Shinji; Kaminaga, Atsushi; Okuno, Koichi*
Journal of Nuclear Science and Technology, 48(4), p.585 - 590, 2011/04
Soft-type neutron shielding resin has been developed by improving an existing hard-type neutron shielding material by the epoxy-based resin as the additional shielding material. A flexible heat resistant neutron shielding material has been developed, which consists of newly polymer-based resin with boron. The neutron shielding performance of the developed flexible heat resistant resin by the Cf neutron source is almost the same as that of the polyethylene. The outgas of H, H, NH, HO, CO, O, CH and CO from the developed resin have been measured at high temperature environment (250C) by thermal desorption spectroscopy methods. The soft-type resin and the newly developed heat resistant resin will be applied to prevent the effects of the neutron streaming and to control the movement of vibrated pipe as the seal material around the plumbing in the future fast reactor and the innovative fission reactor.
Anayama, Yoshimasa*; Sukegawa, Atsuhiko; Sakurai, Shinji; Kaminaga, Atsushi; Okuno, Koichi*
no journal, ,
no abstracts in English
Sukegawa, Atsuhiko; Sakurai, Shinji; Kaminaga, Atsushi; Anayama, Yoshimasa*; Okuno, Koichi*
no journal, ,
no abstracts in English
Sukegawa, Atsuhiko; Onishi, Seiki; Sakurai, Shinji; Anayama, Yoshimasa*; Okuno, Koichi*
no journal, ,
no abstracts in English
Sukegawa, Atsuhiko; Anayama, Yoshimasa*
no journal, ,
no abstracts in English
Sukegawa, Atsuhiko; Anayama, Yoshimasa*
no journal, ,
no abstracts in English