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LONG-LIVED FISSION PRODUCT PROCESSING METHOD USING NEUTRONS UPDATE

外国特許コード F180009630
整理番号 5318
掲載日 2018年11月20日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP006155
国際公開番号 WO 2017187730
国際出願日 平成29年2月20日(2017.2.20)
国際公開日 平成29年11月2日(2017.11.2)
優先権データ
  • 特願2016-091774 (2016.4.28) JP
発明の名称 (英語) LONG-LIVED FISSION PRODUCT PROCESSING METHOD USING NEUTRONS UPDATE
発明の概要(英語) The present invention provides a long-lived fission product processing method using neutrons that makes it possible to generate high intensity neutrons using only an accelerator without using a fast reactor or an accelerator-driven reactor and efficiently cause nuclear transmutation in long-lived fission products (LLFPs). In the present invention, high-energy first neutrons that form a beam in a single direction are generated through the breaking up of deuterons or other primary particles including neutrons as a result of the acceleration of the primary particles in an FFAG accelerator 10 under prescribed conditions such that the primary particles collide with a plate-like target 18, and low-energy, diffuse second neutrons are generated through the excitation of nuclei in the plate-like target. A first LLFP 20 is disposed in the travel direction of the first neutron beam and a second LLFP 24 is disposed in the vicinity of the plate-like target 18.
従来技術、競合技術の概要(英語) BACKGROUND ART
Out with the reactor operation and long life of nuclear fission (LLFP: Long-Lived Fission Product) processing problem, the problem of the maximum use of nuclear power. The base current is assumed due to the disposal processing are embedded, the opposite is large. In addition, the nuclear fission reactor furnace at a high speed by the accelerator-driven and generated by using a neutron, atom transmutation by radioactive LLFP harmless to the known technique.
In this case, accelerated to a high energy proton accelerator and the like of the primary particles are allowed to collide with the fixed nuclei generated in the secondary particles such as neutrons or muons using negative, atom transmutation by the radioactivity LLFP rendered harmless, further resources can be re-used as is, it is possible in principle. In order to realize this, the conventional high strength and high efficiency is not at the same time to produce neutrons, the neutron generating localized to a very important role. However conventional, high intensity capable of generating localized neutrons, the neutron generation system including an accelerator is not developed yet, therefore, a high speed without using the accelerator-driven furnace or reactor, a single accelerator LLFP there was no technique of processing.
For example, accelerated from a linear accelerator taken out of the primary particles beam, which is applied to the fixed target nuclei is a method of generating neutrons. However, in this method, the length of the beam incident direction is required a long target 1m or more, the neutron generator cannot be localized. Therefore, this method efficiently atom transmutation LLFP difficult processing.
In addition, in Patent Document 1, in a ring-shaped accelerator FFAG(Fixed Field Alternating Gradient), protons or deuterons action of the magnetic field and electric field in the primary particles while accelerating the rotation, the plate-shaped and disposed in the accelerator FFAG target, accelerated to collide with the primary particles, neutrons by nuclear reactions is described a technique.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • KYOTO UNIVERSITY
  • 発明者(英語)
  • MORI Yoshiharu
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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