Scattering of low-energetic atoms and molecules from a boron-doped CVD diamond surface

Allenbach, Marc; Neuland, Maike Brigitte; Riedo, Andreas; Wurz, Peter (2018). Scattering of low-energetic atoms and molecules from a boron-doped CVD diamond surface. Applied surface science, 427, pp. 427-433. Elsevier 10.1016/j.apsusc.2017.08.237

	Text 1-s2.0-S0169433217325953-main.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (1MB)
Preview	Text [Untitled].pdf - Accepted Version Available under License Creative Commons: Attribution-Noncommercial-No Derivative Works (CC-BY-NC-ND). Download (1MB) | Preview

For the detection of low energetic neutral atoms for the remote sensing of space plasmas, charge state
conversion surfaces are used to ionize the neutrals for their subsequent measurement. We investigated a
boron-doped Chemical Vapor Deposition (CVD) diamond sample for its suitability to serve as a conversion
surface on future space missions, such as NASA’s Interstellar Mapping and Acceleration Probe.
For H and O atoms incident on conversion surface with energies ranging from 195 to 1000 eV and
impact angles from 6◦ to 15◦ we measured the angular scattering distributions and the ionization yields.
Atomic force microscope and laser ablation ionization mass spectrometry analyses were applied to further
characterize the sample. Based on a figure-of-merit, which included the ionization yield and angular
scatter distribution, the B-doped CVD surface was compared to other, previously characterized conversion
surfaces, including e.g. an undoped CVD diamond with a metallized backside. For particle energies below
390 eV the performance of the B-doped CVD conversion surfaces is comparable to surfaces studied before.
For higher energies the figure-of-merit indicates a superior performance. From our studies we conclude
that the B-doped CVD diamond sample is well suited for its application on future space missions.

Interest & Impact

Downloads

165 since deposited on 29 Sep 2017
6 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item