The project is managed by SCK CEN, the Belgian Centre for Nuclear Research. Its design will be adapted as a function of the experience gained from a first research project with a small proton accelerator and a lead-bismuth eutectic target: GUINEVERE.[2]
MYRRHA is anticipated to be constructed in 2036, with a first phase (100 MeV LINAC accelerator) expected to be completed in 2026 if successfully demonstrated.[3]
MYRRHA is a project presently under development of a research reactor aiming to demonstrate the feasibility of the ADS and the lead-cooled fast reactor concepts, with various research applications from spent-fuel irradiation to material irradiation testing.[4] A linear accelerator is under development to provide a beam of fast proton that hits a spallation target, producing neutrons. These neutrons are necessary to keep the nuclear reactor running when operated in sub-critical mode, but to increase its versatility the reactor is also designed to operate in critical mode with fast neutron and thermal neutron zones.
Acceleratoredit
The accelerator will accelerate protons to an energy of 600 MeV with a beam current of up to 4 mA. In subcritical mode, if the accelerator stops the reactor power drops immediately. To avoid thermal cycles the accelerator needs to be extremely reliable. MYRRHA aims at no more than 10 outages longer than three seconds per 100 days.[5] A first prototype stage of the accelerator was started in 2020.[6]
ISOL@MYRRHAedit
The high reliability and intense beam current required for operating such a machine makes the proton accelerator potentially interesting for online isotope separation. Phase I of the project therefore also includes the design and feasibility study of ISOL@MYRRHA to investigate exotic isotopes.[7]
The pool type, or the loop type, reactor will be cooled by a lead-bismuth eutectic. Separated into a fast neutron zone and a thermal neutron zone, the reactor is planned to use a mixed oxide of uranium and plutonium (with 35 wt. % PuO 2).[9]
Two operating modes are foreseen: critical and sub-critical.
In sub-critical mode, the reactor is planned to run with a criticality under 0.95: On average a fission reaction will induce less than one additional fission reaction, the reactor does not have enough fissile material to sustain a chain reaction on its own and relies on the neutrons from the spallation target. As additional safety feature the reactor can be passively cooled when the accelerator is switched off.[8]
^Mueller, Alex C. (2013). "Transmutation of Nuclear Waste and the future MYRRHA Demonstrator". Journal of Physics: Conference Series. 420 (1): 012059. arXiv:1210.4297. Bibcode:2013JPhCS.420a2059M. doi:10.1088/1742-6596/420/1/012059.
^"Reactor-Accelerator Hybrid Achieves Successful Test Run". 12 January 2012.
^. Archived from the original on 17 April 2019. Retrieved 17 April 2019.
^"IAEA website, " MYRRHA, An innovative and unique irradiation research facility"" (PDF).
^"Final Report Summary - MAX (MYRRHA Accelerator eXperiment, research and development programme)".
^"Myrrha protons accelerated for first time". 20 July 2020. Retrieved 14 June 2021.
^"ISOL@MYRRHA: Fundamental physics at MYRRHA". Retrieved 14 June 2021.
^"MYRRHA: A multipurpose accelerator driven system for research & development" (PDF). Retrieved 14 June 2021.
External linksedit
MYRRHA official website
Isol@MYRRHA official website
SCK CEN official website
November 29, 2023
myrrha, other, uses, myrrha, myrrha, disambiguation, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspaper. For other uses see Myrrha and Myrrha disambiguation This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources MYRRHA news newspapers books scholar JSTOR December 2021 Learn how and when to remove this template message The MYRRHA Multi purpose hYbrid Research Reactor for High tech Applications is a design project of a nuclear reactor coupled to a proton accelerator a so called accelerator driven system ADS MYRRHA will be a lead bismuth cooled fast reactor with two possible configurations sub critical or critical 1 MYRRHA Reactor vessel cutaway viewThe project is managed by SCK CEN the Belgian Centre for Nuclear Research Its design will be adapted as a function of the experience gained from a first research project with a small proton accelerator and a lead bismuth eutectic target GUINEVERE 2 MYRRHA is anticipated to be constructed in 2036 with a first phase 100 MeV LINAC accelerator expected to be completed in 2026 if successfully demonstrated 3 Contents 1 Components 1 1 Accelerator 1 2 ISOL MYRRHA 1 3 Spallation target 1 4 Reactor 2 See also 3 References 4 External linksComponents editThis section may be confusing or unclear to readers Please help clarify the section There might be a discussion about this on the talk page June 2022 Learn how and when to remove this template message MYRRHA is a project presently under development of a research reactor aiming to demonstrate the feasibility of the ADS and the lead cooled fast reactor concepts with various research applications from spent fuel irradiation to material irradiation testing 4 A linear accelerator is under development to provide a beam of fast proton that hits a spallation target producing neutrons These neutrons are necessary to keep the nuclear reactor running when operated in sub critical mode but to increase its versatility the reactor is also designed to operate in critical mode with fast neutron and thermal neutron zones Accelerator edit The accelerator will accelerate protons to an energy of 600 MeV with a beam current of up to 4 mA In subcritical mode if the accelerator stops the reactor power drops immediately To avoid thermal cycles the accelerator needs to be extremely reliable MYRRHA aims at no more than 10 outages longer than three seconds per 100 days 5 A first prototype stage of the accelerator was started in 2020 6 ISOL MYRRHA edit The high reliability and intense beam current required for operating such a machine makes the proton accelerator potentially interesting for online isotope separation Phase I of the project therefore also includes the design and feasibility study of ISOL MYRRHA to investigate exotic isotopes 7 Spallation target edit The protons collide with a liquid lead bismuth eutectic The high atomic number of the target leads to a large number of neutrons via spallation 8 Reactor edit This section may be confusing or unclear to readers Please help clarify the section There might be a discussion about this on the talk page June 2022 Learn how and when to remove this template message The pool type or the loop type reactor will be cooled by a lead bismuth eutectic Separated into a fast neutron zone and a thermal neutron zone the reactor is planned to use a mixed oxide of uranium and plutonium with 35 wt PuO2 9 Two operating modes are foreseen critical and sub critical In sub critical mode the reactor is planned to run with a criticality under 0 95 On average a fission reaction will induce less than one additional fission reaction the reactor does not have enough fissile material to sustain a chain reaction on its own and relies on the neutrons from the spallation target As additional safety feature the reactor can be passively cooled when the accelerator is switched off 8 See also editASTRID Fast breeder reactor Fast neutron reactor Gas cooled fast reactor Generation IV reactor Integral Fast Reactor Sodium cooled fast reactorReferences edit Mueller Alex C 2013 Transmutation of Nuclear Waste and the future MYRRHA Demonstrator Journal of Physics Conference Series 420 1 012059 arXiv 1210 4297 Bibcode 2013JPhCS 420a2059M doi 10 1088 1742 6596 420 1 012059 Reactor Accelerator Hybrid Achieves Successful Test Run 12 January 2012 Myrrha planning Archived from the original on 17 April 2019 Retrieved 17 April 2019 IAEA website MYRRHA An innovative and unique irradiation research facility PDF Final Report Summary MAX MYRRHA Accelerator eXperiment research and development programme Myrrha protons accelerated for first time 20 July 2020 Retrieved 14 June 2021 ISOL MYRRHA Fundamental physics at MYRRHA Retrieved 14 June 2021 a b MYRRHA Reactor Retrieved 14 June 2021 MYRRHA A multipurpose accelerator driven system for research amp development PDF Retrieved 14 June 2021 External links editMYRRHA official website Isol MYRRHA official website SCK CEN official website Retrieved from https en wikipedia org w index php title MYRRHA amp oldid 1098147472, wikipedia, wiki, book, books, library,
