LNF:Technology: Difference between revisions

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[[File:Foto0005b.jpg|500px|thumb|right|SIMS sample-holder]]

The main mission of the Fusion Technology Division of the Spanish [[Laboratorio Nacional de Fusión|National Fusion Laboratory]] is to undertake research on the properties as well as the radiation hardness and subsequent degradation of structural and functional materials for future fusion reactors. In particular, studies on reduced activity ferritic/martensitic steels and materials used for electrical isolation, diagnostic windows etc. are central to this work. In parallel, given that at present, there is no neutron source available that simulates the fluxes and energies required for material irradiation under predicted fusion reactor conditions, the division is involved in the development of suitable neutron sources for material irradiation (ENS, IFMIF, and DONES). These sources, when on-line, will facilitate accelerated irradiation damage studies in materials of interest. Finally, activities by the division in the area of lithium [[breeding blanket]] (LBB) development can be highlighted. This work is based on liquid metals (Li-Pb) or lithium based ceramics for LBB and on corrosion or permeation phenomena in blanket structural materials.

The main mission of the Fusion Technology Division of the Spanish [[Laboratorio Nacional de Fusión|National Fusion Laboratory]] is to undertake research on the properties as well as the radiation hardness and subsequent degradation of structural and functional materials for future fusion reactors. In particular, studies on reduced activity ferritic/martensitic steels and materials used for electrical isolation, diagnostic windows etc. are central to this work. In parallel, given that at present, there is no neutron source available that simulates the fluxes and energies required for material irradiation under predicted fusion reactor conditions, the division is involved in the development of suitable neutron sources for material irradiation (ENS, [[IFMIF]], and DONES). These sources, when on-line, will facilitate accelerated irradiation damage studies in materials of interest. Finally, activities by the division in the area of lithium [[breeding blanket]] (LBB) development can be highlighted. This work is based on liquid metals (Li-Pb) or lithium based ceramics for LBB and on corrosion or permeation phenomena in blanket structural materials.

==Materials for fusion applications==

The radiation effect is one of the critical aspects concerning fusion reactor development. The neutron and gamma radiation produced in the ~~reactors´vessels~~ generates displacement defects and transmutations. Such micro-structural damage leads the materials to suffer degradation of its mechanical and physical properties. Embrittlement, swelling, stress corrosion cracking, hardening loss of optical transmission and of electrical isolation are some examples of the problems that radiation will cause on structural and functional materials used in [[ITER]] and DEMO.

The radiation effect is one of the critical aspects concerning fusion reactor development. The neutron and gamma radiation produced in the reactor vessels generates displacement defects and transmutations. Such micro-structural damage leads the materials to suffer degradation of its mechanical and physical properties. Embrittlement, swelling, stress corrosion cracking, hardening loss of optical transmission and of electrical isolation are some examples of the problems that radiation will cause on structural and functional materials used in [[ITER]] and [[DEMO]].

[[Laboratorio Nacional de Fusión|LNF]] drives fundamental research activities to approach the understanding of radiation effects in structural and functional materials of interest for fusion.

*Functional Materials: Candidate insulators to build the components of the diagnostics, heating systems and remote handling systems such as RF windows, mirrors, mineral insulating cables, fibre optics or optical windows. The range of enviromental conditions that these materials would withstand in the machine will be very broad depending on its function.

*Structural Materials: Candidate steels to build the reactor vessel while resisting loads, high temperatures, high radiation fluxes and intense magnetic fields.

*Materials for solid breeder blankets: For the HCPB (Helium Cooled Pebble Bed) design.

*Materials for solid [[Breeding blanket|breeder blankets]]: For the HCPB (Helium Cooled Pebble Bed) design.

==Material Irradiation Facilities==

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A gamma dosimetry before starting an irradiation test is always carried out.

=== 5 MV ion accelerator facility ===

The fusion materials group has developed an [https://www.cmam.uam.es/en/facilities/beamlines/120 implantation line] for big samples in the 5 MV Tandetron accelerator from the Centro de Micro-Análisis de Materiales ([https://www.cmam.uam.es CMAM]) of [http://www.uam.es/ss/Satellite/es/home/ UAM].

==Material Characterization Facilities==

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 [[File:Foto0005b.jpg|500px|thumb|right|SIMS sample-holder]]
-The main mission of the Fusion Technology Division of the Spanish [[Laboratorio Nacional de Fusión|National Fusion Laboratory]] is to undertake research on the properties as well as the radiation hardness and subsequent degradation of structural and functional materials for future fusion reactors. In particular, studies on reduced activity ferritic/martensitic steels and materials used for electrical isolation, diagnostic windows etc. are central to this work. In parallel, given that at present, there is no neutron source available that simulates the fluxes and energies required for material irradiation under predicted fusion reactor conditions, the division is involved in the development of suitable neutron sources for material irradiation (ENS, IFMIF, and DONES). These sources, when on-line, will facilitate accelerated irradiation damage studies in materials of interest. Finally, activities by the division in the area of lithium [[breeding blanket]] (LBB) development can be highlighted. This work is based on liquid metals (Li-Pb) or lithium based ceramics for LBB and on corrosion or permeation phenomena in blanket structural materials.
+The main mission of the Fusion Technology Division of the Spanish [[Laboratorio Nacional de Fusión|National Fusion Laboratory]] is to undertake research on the properties as well as the radiation hardness and subsequent degradation of structural and functional materials for future fusion reactors. In particular, studies on reduced activity ferritic/martensitic steels and materials used for electrical isolation, diagnostic windows etc. are central to this work. In parallel, given that at present, there is no neutron source available that simulates the fluxes and energies required for material irradiation under predicted fusion reactor conditions, the division is involved in the development of suitable neutron sources for material irradiation (ENS, [[IFMIF]], and DONES). These sources, when on-line, will facilitate accelerated irradiation damage studies in materials of interest. Finally, activities by the division in the area of lithium [[breeding blanket]] (LBB) development can be highlighted. This work is based on liquid metals (Li-Pb) or lithium based ceramics for LBB and on corrosion or permeation phenomena in blanket structural materials.
 ==Materials for fusion applications==
-The radiation effect is one of the critical aspects concerning fusion reactor development. The neutron and gamma radiation produced in the reactors´vessels generates displacement defects and transmutations. Such micro-structural damage leads the materials to suffer degradation of its mechanical and physical properties. Embrittlement, swelling, stress corrosion cracking, hardening loss of optical transmission and of electrical isolation are some examples of the problems that radiation will cause on structural and functional materials used in [[ITER]] and DEMO.
+The radiation effect is one of the critical aspects concerning fusion reactor development. The neutron and gamma radiation produced in the reactor vessels generates displacement defects and transmutations. Such micro-structural damage leads the materials to suffer degradation of its mechanical and physical properties. Embrittlement, swelling, stress corrosion cracking, hardening loss of optical transmission and of electrical isolation are some examples of the problems that radiation will cause on structural and functional materials used in [[ITER]] and [[DEMO]].
 [[Laboratorio Nacional de Fusión|LNF]] drives fundamental research activities to approach the understanding of radiation effects in structural and functional materials of interest for fusion.
+*Functional Materials: Candidate insulators to build the components of the diagnostics, heating systems and remote handling systems such as RF windows, mirrors, mineral insulating cables, fibre optics or optical windows. The range of enviromental conditions that these materials would withstand in the machine will be very broad depending on its function.
 *Structural Materials: Candidate steels to build the reactor vessel while resisting loads, high temperatures, high radiation fluxes and intense magnetic fields.
-*Materials for solid breeder blankets: For the HCPB (Helium Cooled Pebble Bed) design.
+*Materials for solid [[Breeding blanket|breeder blankets]]: For the HCPB (Helium Cooled Pebble Bed) design.
 ==Material Irradiation Facilities==
@@ Line 72: / Line 72: @@
 A gamma dosimetry before starting an irradiation test is always carried out.
+=== 5 MV ion accelerator facility ===
+The fusion materials group has developed an [https://www.cmam.uam.es/en/facilities/beamlines/120 implantation line] for big samples in the 5 MV Tandetron accelerator from the Centro de Micro-Análisis de Materiales ([https://www.cmam.uam.es CMAM]) of [http://www.uam.es/ss/Satellite/es/home/ UAM].
 ==Material Characterization Facilities==