ITER Nuclear Analysis Strategy and Requirements

Overview of recent nuclear analyses for the Upper ECH launcher in ITER

“…The rest of the MCNP model is supplied as a standard from the ITER Organisation (IO), which was the 20 • ITER MCNP brand model [9] until 2008. After that, IO has adopted a new generic 40 • MCNP5 model, called Alite, as the neutronic standard [2], depicted in Fig. 1.…”

“…The emission of the 14 MeV neutrons from the D-T thermonuclear reactions in the ITER plasma with a fusion power of 500 MW, as considered in this paper, and even extended up to 700 MW, as envisaged in [2], requires serious consideration of the nuclear aspects along the ITER components development. Especially in the case when a component, such as the ITER upper port ECH launcher, has a direct interface with the plasma chamber, shown in Fig.…”

“…Additional benefits concerning the mm-wave transmission losses and stray wave radiation are discussed in [1]. As before, the objective of recent nuclear analyses for the QO launcher is adhered closely to the ITER nuclear requirements [2,9] including radiation design limits for the reliable machine operation, and human safety of the ECH launcher maintenance along the ITER campaign and after its shutdown.…”

Integral approach for neutronics analyses of the European test blanket modules in ITER

“…Through this approach consistency of the analyses and the engineering models is ensured. In this work, models of the TBM system elaborated by the European TBM CA were generated and integrated into the so-called Alite model of ITER [2]. Neutronic performance and shielding analyses were conducted on the basis of Monte Carlo calculations with the MCNP-5 code [3] using this model.…”

High Performance Parallel Monte Carlo Transport Computations for ITER Fusion Neutronics Applications

“…In this work, the MC radiation transport computations were performed with the Alite standard ITER model 6) representing a 40 0 torus sector with all the ITER components inside, as shown in Fig. 2.…”