2017
DOI: 10.1016/j.nme.2017.03.005
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Physics conclusions in support of ITER W divertor monoblock shaping

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Cited by 147 publications
(139 citation statements)
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“…However, machining and installation tolerances along with the needed chamfering of tile edges will increase the incident field line angle. Owing to this, 'fish-scaling' of the divertor tiles may be necessary to protect adjacent tiles, as was done for ITER (Pitts et al 2017), where each tile surface is tilted by 1 • . Therefore, to be conservative, an incident field line angle of 2 • is assumed for the SPARC V2 divertor thermal analysis; this will be reassessed as a more detailed design is produced.…”
Section: Divertor Target Geometrymentioning
confidence: 99%
“…However, machining and installation tolerances along with the needed chamfering of tile edges will increase the incident field line angle. Owing to this, 'fish-scaling' of the divertor tiles may be necessary to protect adjacent tiles, as was done for ITER (Pitts et al 2017), where each tile surface is tilted by 1 • . Therefore, to be conservative, an incident field line angle of 2 • is assumed for the SPARC V2 divertor thermal analysis; this will be reassessed as a more detailed design is produced.…”
Section: Divertor Target Geometrymentioning
confidence: 99%
“…The objective of controlled fusion is to recover the energy produced by fusion reactions and convert it into usable energy forms. One key factor in the success of fusion facilities will be the ability of its plasma facing components (PFCs) to handle high heat fluxes as expected in the ITER divertor region, up to 10 MW/m 2 in steady state and 20 MW/m2 in slow transient [1][2][3]. The WEST tokamak provides an integrated platform for testing the ITER divertor components under relevant power loads, particle fluence and time scales [4,5] in a full metallic environment.…”
Section: Introductionmentioning
confidence: 99%
“…The sample temperature is measured by a type K ThermoCouple (TC errors of 1.5 °C for T < 375 °C and 0.4 % for T > 375 °C) installed in the samples with a 1.1mm hole filled with graphite adhesive ensuring a good thermal contact between the thermocouple and the sample The emissivity, (, T) is defined as the ratio between the radiation emitted by the surface L(, T) and the radiation emitted by a black body at the same temperature L°(, T) as follows: (1) In our experimental setup the radiance emitted by the surface is measured by the IR camera, equipped with a filter and calibrated with a black body source. Then the radiation emitted by the surface of the sample assuming black body emission is calculated with the Planck formula with the temperature measured by the TC and integrated in the wavelength range of the filter as follows: (2) Where being the filter spectral transmittance, the wavelength, the temperature measured by the thermocouple expressed in K, and the radiation constants.…”
Section: Introductionmentioning
confidence: 99%
“…Studies for the further optimization of the ITER divertor tungsten monoblock front surface, beyond the 2016 initial design, include a toroidal bevel on monoblocks in the high heat flux areas of the vertical targets in order to ensure adequate magnetic shadowing of poloidal gap edges [22]. Simulations [23] and experiments carried out under the International Tokamak Physics Activity research programme [24,25] have shown that toroidal gap edges can be heated significantly by the plasma (particularly during ELM transients) in ITER.…”
Section: Design and Optimization Of The Divertormentioning
confidence: 99%