reduction and resource recycling of high-level radioactive ...2018/12/02 · reduction and resource...
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Reduction and Resource Recycling of High-level Radioactive Waste through
Nuclear Transmutation-Overview and current results of the ImPACT Program-
Dec. 2, 2018 Reiko FUJITA, Masatoshi KAWASHIMA, Masaki OZAWA, Teiichiro MATSUZAKIJapan Science and Technology Agency
*www8.cao.go.jp/cstp/sentan/about-kakushin.html
This work was funded by ImPACT Program of Council for Science, Technology and Innovation (Cabinet office, Government of Japan)
New Horizons of P&T Technologies with Accelerator SystemDecember 2-3,2018, Tokyo, Japan
ImPACT :Impulsing PAradigm Change through disruptive Technology
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Contents1. A challenge for some candidate of solution of high-level radioactive
waste (HLW) disposal 2. The revolution of industries and societies2-1. Long-lived Fission Products2-2. Previous studies
3. Program contents 3-1. Transmutation process of Pd-1073-2. Outline of ImPACT program
4. Current Progess4-1. Separation and recovery technologies4-2. Measurement of nuclear reaction data4-3. Improve simulation accuracy of transmutation reaction of LLFPs4-4. Accelerator transmutation system and related development for
element technologies4-5. Disposal and Recycling in ImPACT
5. Strategy and future development
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MA
Np,Am,Cm
129I、99Tc
79Se、93Zr、107Pd、135Cs、
EU ○ ○ ○ ○Risks of disposal ofHLW and LLFPs
US ○ ○ ○ ○ Ibid.
OMEGA(Japan)
○ ○ ○ ○ Risks of LLFPs
SCNES*(Japan)
○ ○ ○ ○Need of Isotopeseparation
ADS-MA(JAEA)
○ ○ Risks of LLFPs
ImPACT(Japan)
Use ofresults
ofADS-MA
Use ofresults ofOMEGA
andSCNES
○ ○
Need of Accelaratortechnology toward zeroof HLW without Isotopeseparation withOMEGA, SCNES andADS of MA TM
U Pu
Transumutaion targets Facilities
Issues
Actinides Fission Products (FP)
Reactor ADS OthersLong lived FP
Previous Studies on Transmutation of MAs and LLFPs in HLW
*SCNES: Self-Consistent Nuclear Energy System5
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Current Progress : LLFP Recovery from HLLW
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Current Progress : Low primary beam energy
Direct measurement of reaction products from the reaction between low-energy LLFP beam by OEDO and proton/deuteron
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Reaction products of107Pd+p reaction
Cross sections of Agisotopes in 107Pd+preaction
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Current Progress : Low primary beam energy
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4-3. Improve simulation accuracy of transmutationreaction of long-lived nuclides
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Current progress : Evaluating Material flows
Evaluating Material flows of Zr and possible exposure to public in Japan(under research and studying)
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SummaryImPACT Program has started in order to be the first in the world to obtain nuclear reaction data for LLFPs, and to confirm the world’s first nuclear reaction path for conversion to short lived nuclides or stable nuclides without isotope separation.
This program should contribute through proposing innovative feasibilities(by recombining physics and nuclear technology for aiming at resolvingnuclear HLW burden problems including waste-resource recycling) andovercome the Valley of Death and the Darwinian Sea by fusion withnuclear physics and nuclear engineering.
The even/odd separation process and the high beam current acceleratoris proposed and being confirmed to be feasible for LLFP P&T system byseveral experiments.
It is most important to give young generation the dream which is shown in challenge for difficult research issues and solving steadily ones and overcoming ones.
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Thank you for your attention !
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