Neutronic analyses and tools development efforts in the European DEMO programme

Potential irradiation of Cu alloys and tungsten samples in DONES

“…Throughout this paper, the He and H production to damage dose ratios will be referred to as He and H ratios, respectively, for simplicity. For EUROFER in the first wall of a future DEMO, the He and H ratios expected are about 10 He appm/ dpa and 40 H appm/dpa [12][13][14]. Furthermore, He and H ratios suffered by CuCrZr-alloy and W materials in the divertor area of a DEMO are calculated in this work in a neutronic model of DEMO-DCLL (dual coolant lithium lead) concept, with the aim to compare with the ones obtained in IFMIF-DONES.…”

Recent Progress in the WCLL Breeding Blanket Design for the DEMO Fusion Reactor

“…The present studies have been performed using an upgraded MCNP WCLL DEMO model, introducing a detailed description of the breeding blanket in the inboard and outboard equatorial modules, thus allowing a more realistic and reliable particle transport in the mid-plane area of the tokamak. Three dimensional coupled neutron and gamma transport simulations have been performed according to specific guidelines [11], [12] by means of the MCNP5v1.6 Monte Carlo code [13] and JEFF 3.2 nuclear data libraries [14].…”

Analysis of EU-DEMO WCLL Power Conversion System in Two Relevant Balance of Plant Configurations: Direct Coupling with Auxiliary Boiler and Indirect Coupling

“…The reference operative regime of DEMO is based on a pulse period of 2 h and a dwell time of 600 s [5]. During pulse operation, around 2 GW th must be removed from the reactor Breeding Blanket (BB) [6], while the power deposited in such a structure during dwell time (i.e., when the plasma is off) approaches the 1% of the nominal value [7]. Eleven pulses per day are foreseen, generating a concern related to the unconventional operation of the DEMO BoP.…”