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

[img] Text
1-s2.0-S0169433217325953-main.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (1MB) | Request a copy
[img] Text
[Untitled].pdf - Accepted Version
Restricted to registered users only until 1 February 2020.
Available under License Publisher holds Copyright.

Download (1MB) | Request a copy

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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Allenbach, Marc; Neuland, Maike Brigitte; Riedo, Andreas and Wurz, Peter

Subjects:

500 Science > 520 Astronomy
500 Science > 530 Physics
600 Technology > 620 Engineering

ISSN:

0169-4332

Publisher:

Elsevier

Language:

English

Submitter:

Dora Ursula Zimmerer

Date Deposited:

29 Sep 2017 10:50

Last Modified:

16 Oct 2017 10:18

Publisher DOI:

10.1016/j.apsusc.2017.08.237

BORIS DOI:

10.7892/boris.105674

URI:

https://boris.unibe.ch/id/eprint/105674

Actions (login required)

Edit item Edit item
Provide Feedback