PALOMA Facility TechnoFusión FL Tabarés JA Ferreira Owner consortium between Madrid Regional government and National Government based on the technical expertise from CIEMAT and UPM ID: 322873
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Slide1
Present status of PALOMA Facility (TechnoFusión)
F.L.
Tabarés
, J.A. FerreiraSlide2
Owner: consortium between Madrid Regional government and National Government, based on the technical expertise from CIEMAT and UPM
It has to be a Facility, open to Spanish and European
usersIt has to be a Facility, i.e. should be based on large-scale equipment and infrastructure not affordable for small research groupsThe coordination with the European Fusion Programme must be assured
TechnoFusion Project: IdeaSlide3
To increase the Spanish involvement in the International Fusion ProgramTo develop the Spanish technology
It
should be useful in other research and technological areasWhereas ITER construction is mainly based on today´s technology the focus of TechnoFusion will be on:Development of technologies to be used in ITER at later stageTechnology and basic understanding for the next step (DEMO)
R&D complementing the research in ITER
TechnoFusion Project: ObjectivesSlide4
R&D Areas of TechnoFusionSlide5
3 Locations: Getafe (South Madrid)
Getafe I
Getafe II
Remote handling: Big prototipes
Material irradiation
Liquid Metal Technologies
Remote handling under irradiation
Characterization techniques
Computational simulation
AdministrationSlide6
3 Locations: Leganés (South Madrid)
Leganés
Material Production and Processing
Characterization TechniquesSlide7
3 Locations: CIEMAT
11-12
20
F
Madrid I
Madrid II
Ion accelerators (Material irradiation)
Characterization techniques
Plasma-Wall Interaction
Characterization techniquesSlide8
24th January 2011: Sign of the agreement for the foundation of TechnoFusion Consortium by CIEMAT, UC3M and UPM
Last NewsSlide9
Material Irradiation AreaGOAL
To reproduce neutron effects using accelerators
H and He generated in fusion (1 ppm/week of He in Fe) using implantation of H and HeDisplacements (dpa’s) using high energy ions of the target materialTriple beam irradiation zoneSingle beam operation to irradiate under high magnetic field
Several simple/double lines to irradiate at different temperatures (“in beam” measurements)
MAIN CONDITIONS:Reach IFMIF values of irradiation (0,1 dpa/week)Reach He/dpa ratios ~5 - 11Slide10
Heavy Ion Accelerator
Cyclotron k=110
Light Ion Accelerator
4 MV Light Ion Accelerator 6 MV
Irradiated MatrerialDepth(µm)
Ion
Energy
(MeV)
Ion
Energy (MeV)
Ion
Energy
(MeV)
Fe (7.8 g/cm
3
)
26.6
Fe
385
H
2.5
He
10
W (19.3 g/cm
3
)
10.1
W
373
H
1.6He6
C (2.3 g/cm3)148C96H4.5He18SiO2 (2.2 g/cm3)175Si
337H
4.6
He
18
SiC (3.2 g/cm
3
)
122.4
Si
337
H
4.6
He
18
SiC (3.2 g/cm
3
)
122.4
Si
337
D
4.6
He
18
Material
IrradiationSlide11
Conceptual design in progress !!
Linear accelerators:
commercially available, but some issues has still to be solved in the near term, as the ion sources (types, currents,…)Cyclotron : Isochronous multi-ion (complex!!). Detailed design needed:Possibly SC type. Estimations are in progress
External Collaborations has been created (MIT, GANIL…) but finally a constructor will have to be foundCommon issues:
Components of transport lines Neutralizer Beam energy degrader…Probably some prototypes will be needed
Material Irradiation AreaSlide12
To reproduce the real, harsh, environment under which materials will be exposed to the plasma in a fusion reactor (
ITER/DEMO
): - ELMs+Disruption parameters reproduction - Capability to study PW effects in materials previously irradiated at the Ion Accelerator Complex with heavy ions H+ He+ (“low activation” irradiation)
- Studies of W samples irradiated to DEMO EoL
equivalent conditionsBackground:
Particle fluxes at the divertor in ITER and in reactors: > 1024 ions/m2.sTransient thermal loads (ELMS and disruptions):
~ MJ/m
2
Temperature between transients:
few 100 ºC (not loaded areas) to1500 ºC (loaded areas)
Frequency and duration & of transients:
few Hz to one every several pulses , 0.1-10
ms
ITER FW materials:
CFC, W, Be
DEMO FW materials:
W,
SiC
, Liquid metals(?)….
Neutron damage at the end of operation lifetime:
1
dpa
Plasma-Wall Interaction AreaSlide13
Plasma-Wall Interaction Area
PWI Components
Linear Plasma Device (LP):
Cascade arc, superconducting field (1T)
PILOT-PSI design. Upgrade to larger Beam (FOM Collaboration)
Steady-state, superconductor (commercial available)
UHV pumped (impurity control)
A+M Physics studies and diagnostic development for
divertors
PILOT PSI-like parameters
Pulsed up to
1.6T (0.4s)
0.2T
in steady-state
2 roots pumps with total pumping speed 7200 m
3
/h
Pressure 0.1-1 Pa during plasma operation
Power fluxes
> 30 MW/m2
Already achieved ITER-like fluxes, first
5 cm
of ITER target (5mm SOL) can be simulated
+ beam expansion by B tailoring: Still high flux density and large beam
Plasma Gun (QSPA):
Compact QSPA type: STCU Partner Contract with Kharkov IPP
QSPA parameters (MJ/m
2
range)
Pulsed duration:
< 500 µsPlasma current: < 650 kaIon energy: < 1 keV
Electron density: 1015 – 1016 cm
-3
Electron temperature:
3 – 5 eV (< 100 eV at sample)
Energy density:
> 2 MJ/m
2
Magnetic field at sample:
1 T
Repetition period:
1- 3 minSlide14
Plasma Gun (QSPA)
Design Completed by Kharkov IPP team in collaboration with CIEMAT
Ready for prototypingSlide15
Linear device
Three channel cascade arc plasma source: Description
Three separate cathodes.
Three separate gas inlets.
Distance between the channels: 20 mm.
Channel diameter: 5mm.
Nozzle diameter: 5, 5.5 and 6 mm.
Shared water cooling.
Collaboration with FOM (Eider
Oyarzabal
)Slide16
QSPA needs an expansion chamber
pumping (incompatible with coils)
Interconnection of both machinesSlide17
Sample Chamber ConceptThe sample should be mounted on a rail that allow the exposure to both plasmas alternatively
Interconnection of both machinesSlide18
NbTi
coils cooled by
cryocoolers
Coil design
Material
Volume
Surface
Coil
NbTi
6,4e-4 m
3
0,10 m
2
Conductor
C10200 (OF copper)
5,0e-4 m
3
0,14 m
2
Heat shield
C10200
8,0e-4 m
3
0,27 m
2
Outer cryostat
304L MLI interior
1,0e-3 m
3
0,36 m
2Table 2. Geometrical characteristicsSlide19
Technology based on existing devicesThe most demanding part involving the integration of both systemsWaiting for funding…
Conclusions