Carl Alwmark
Universitetslektor
Combined Neutron and X-Ray Tomography—A Versatile and Non-Destructive Tool in Planetary Geosciences
Författare
Summary, in English
With several upcoming sample return missions, such as the Mars Sample Return Campaign, non-destructive methods will be key to maximizing their scientific output. In this study, we demonstrate that the combination of neutron and X-ray tomography provides an important tool for the characterization of such valuable samples. These methods allow quantitative analyses of internal sample features and also provide a guide for further destructive analyses with little to no sample treatment, which maintains sample integrity, including minimizing the risk of potential contamination. Here, we present and review the results from four case studies of terrestrial impactites and meteorites along with their analytical setup. Using combined X-ray and neutron tomography, a Ni-Fe silicide spherule, that is, projectile material, was located within a Libyan Desert Glass sample and the distribution of hydrous phases was pinpointed in selected impactite samples from the Chicxulub IODP-ICDP Expedition 364 drill core and the Luizi impact structure, as well as in the Miller Range 03346 Martian meteorite.
Avdelning/ar
- LINXS - Institute of advanced Neutron and X-ray Science
- SEM-labbet
- Berggrundsgeologi
- LTH profilområde: Nanovetenskap och halvledarteknologi
- Hållfasthetslära
- LU profilområde: Naturlig och artificiell kognition
- Teknisk geologi
Publiceringsår
2024-02
Språk
Engelska
Publikation/Tidskrift/Serie
Journal of Geophysical Research: Planets
Volym
129
Issue
2
Dokumenttyp
Artikel i tidskrift
Förlag
Wiley-Blackwell
Ämne
- Geology
Nyckelord
- impactite
- neutron tomography
- planetary geology
- projectile material
- sample return
- x-ray tomography
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 2169-9097