Deducing lunar regolith porosity from energetic neutral atom emission

PS Szabo, AR Poppe, H Biber, A Mutzke… - Geophysical …, 2022 - Wiley Online Library
The porosity of the upper layers of regolith is key to the interaction of an airless planetary
body with precipitating radiation, but it remains difficult to characterize. One of the effects that …

Energetic neutral atom (ENA) emission characteristics at the Moon and Mercury from 3D regolith simulations of solar wind reflection

PS Szabo, AR Poppe, A Mutzke… - Journal of …, 2023 - Wiley Online Library
The reflection of solar wind protons as energetic neutral atoms (ENAs) from the lunar surface
has regularly been used to study the plasma‐surface interaction at the Moon. However …

Sputtering behavior of rough, polycrystalline mercury analogs

H Biber, J Brötzner, N Jäggi, PS Szabo… - The Planetary …, 2022 - iopscience.iop.org
The solar wind continuously impacts on rocky bodies in space, eroding their surface, thereby
contributing significantly to the exosphere formations. The BepiColombo mission to Mercury …

New compound and hybrid binding energy sputter model for modeling purposes in agreement with experimental data

N Jäggi, A Mutzke, H Biber, J Brötzner… - The Planetary …, 2023 - iopscience.iop.org
Rocky planets and moons experiencing solar wind sputtering are continuously supplying
their enveloping exosphere with ejected neutral atoms. To understand the quantity and …

Establishing a best practice for SDTrimSP simulations of solar wind ion sputtering

LS Morrissey, MJ Schaible, OJ Tucker… - The Planetary …, 2023 - iopscience.iop.org
Solar wind (SW) ion irradiation on airless bodies can play an important role in altering their
surface properties and surrounding exosphere. Much of the ion sputtering data needed for …

Influence of hydrogen plasma on the surface structure of beryllium

M Skakov, E Batyrbekov, I Sokolov, A Miniyazov… - Materials, 2022 - mdpi.com
This paper presents the research results of hydrogen plasma effect on the surface structure
of the TGP-56 beryllium. In the linear simulator, the operating conditions of the first wall of …

[HTML][HTML] Relationship between topographic parameters and BRDF for tungsten surfaces in the visible spectrum

M Le Bohec, R Steiner, H Natsume, S Kajita, MB Yaala… - Optik, 2024 - Elsevier
In metallic fusion devices, parasitic light originating from multiple reflections on the wall is a
major problem for the interpretation of optical diagnostics. Strong stray light affects several …

Sputter yield reduction and fluence stability of numerically optimized nanocolumnar tungsten surfaces

C Cupak, A Lopez-Cazalilla, H Biber, J Brötzner… - Physical Review …, 2023 - APS
Nanocolumnar tungsten surfaces were investigated with numerical techniques regarding
their potential to reduce sputtering by ion bombardment. We simulated a large number of …

Sputter yields of surfaces with nanoscale textures: Analytical results and Monte Carlo simulations

RM Bradley, G Hobler - Journal of Applied Physics, 2023 - pubs.aip.org
We find the spatially averaged sputter yield Y analytically for non-planar surfaces that have
slowly varying surface heights h ¼ h (x, y). To begin, nonlocal effects like redeposition of …

SpuBase: Solar Wind Ion Sputter Database for Modeling Purposes

N Jäggi, H Biber, J Brötzner, PS Szabo… - The Planetary …, 2024 - iopscience.iop.org
We supply the modelers with a database, SpuBase (doi: 10.5281/zenodo. 10783295), that is
based on the latest approach for obtaining solar wind ion sputter yields in agreement with …