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LNF:Technology: Difference between revisions
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[[File:Foto0005b.jpg|500px|thumb|right|sample-holder | [[File:Foto0005b.jpg|500px|thumb|right|SIMS sample-holder]] | ||
The main goal of the Fusion Technology Division of the Spanish National Fusion Laboratory is 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 (LLB) development can be highlighted. This work is based on liquid metals (Li-Pb) or lithium based ceramics for LLB and on corrosion or permeation phenomena in blanket structural materials. | The main goal of the Fusion Technology Division of the Spanish National Fusion Laboratory is 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 (LLB) development can be highlighted. This work is based on liquid metals (Li-Pb) or lithium based ceramics for LLB and on corrosion or permeation phenomena in blanket structural materials. | ||
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===2 MeV ELECTRON VAN DER GRAAF ACCELERATOR=== | ===2 MeV ELECTRON VAN DER GRAAF ACCELERATOR=== | ||
[[File:Foto1electrones.png|500px|thumb|right| | [[File:Foto1electrones.png|500px|thumb|right|Electron Accelerator]] | ||
This facility permits either direct irradiation with 2 MeV electron or Bremsstrahlung irradiation produced by stopping the electron beam at beam currents up to 150 µA. In this way the same type of radiation testing that is carried out using Co-60 irradiation facility can be done but more rapidly (higher and well controlled dose rate) performing the corresponding measurements during irradition, in-situ. | This facility permits either direct irradiation with 2 MeV electron or Bremsstrahlung irradiation produced by stopping the electron beam at beam currents up to 150 µA. In this way the same type of radiation testing that is carried out using Co-60 irradiation facility can be done but more rapidly (higher and well controlled dose rate) performing the corresponding measurements during irradition, in-situ. | ||
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===NAYADE Co-60 irradiation facility=== | ===NAYADE Co-60 irradiation facility=== | ||
[[File:Nayade3.png|200px|thumb|right|NAYADE]] | |||
For gamma rays irradiations CIEMAT has the ownership of a Co-60 facility with unrestricted access. The irradiations can be performed for long periods. The Nayade facility of CIEMAT is pool-type with water as biological shield. It consists of a pool of 1.2 m on side and 4.5 m deep of water, providing enough biological shielding for about 100,000 Ci of Co-60. The pool has the equipment and systems necessary to ensure safety controls through water level, radiation detectors, control of water purity through pH and conductivity measurements. These devices are controlled in a common console. The use of water as a biological shield allows direct vision of the bottom pool that is the surface where the radiation produced and facilitates the moving and positioning the sources and extraction of samples in the different devices. | For gamma rays irradiations CIEMAT has the ownership of a Co-60 facility with unrestricted access. The irradiations can be performed for long periods. The Nayade facility of CIEMAT is pool-type with water as biological shield. It consists of a pool of 1.2 m on side and 4.5 m deep of water, providing enough biological shielding for about 100,000 Ci of Co-60. The pool has the equipment and systems necessary to ensure safety controls through water level, radiation detectors, control of water purity through pH and conductivity measurements. These devices are controlled in a common console. The use of water as a biological shield allows direct vision of the bottom pool that is the surface where the radiation produced and facilitates the moving and positioning the sources and extraction of samples in the different devices. | ||
[[File:Nayade6.png|200px|thumb|right| | [[File:Nayade6.png|200px|thumb|right|Irradiation Camara]] | ||
The main irradiation characteristics in Nayade are: | The main irradiation characteristics in Nayade are: | ||