DOAJ Open Access 2025

Determination of Uncertainty Model of a Particle-Reflection-Distribution

Roland Preuss Udo von Toussaint

Abstrak

The modelling of plasma–wall interactions (PWIs) depends on distributions describing the angle and energy distribution of particles scattered at the first wall of fusion devices. Most PWI codes rely on extensive tables based on data from reflection simulations, employing a Monte Carlo method. At first glance, the uncertainty distribution of the data should be assumed Gaussian. However, in order to obtain the resulting particle distribution, the reflected ions are counted within angle sections of the upper hemisphere, which hints to a Poisson uncertainty distribution. In this paper, we let Bayesian model comparison decide which uncertainty model should be taken.

Topik & Kata Kunci

Mechanical drawing. Engineering graphics Physical and theoretical chemistry

Penulis (2)

Roland Preuss

Udo von Toussaint

Format Sitasi

APA MLA BibTeX

Preuss, R., Toussaint, U.v. (2025). Determination of Uncertainty Model of a Particle-Reflection-Distribution. https://doi.org/10.3390/psf2025012018

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.3390/psf2025012018
Akses: Open Access ✓