Details
| Titel in Übersetzung | Räumlich aufgelöste Isotopenanalyse von einem Tschernobyl Corium Fragment extrahiert aus Umweltboden |
|---|---|
| Originalsprache | Englisch |
| Aufsatznummer | 107699 |
| Fachzeitschrift | Journal of Environmental Radioactivity |
| Jahrgang | 286 |
| Frühes Online-Datum | 24 Apr. 2025 |
| Publikationsstatus | Veröffentlicht - Juni 2025 |
Abstract
Micrometer sized particles accounted for a considerable fraction of the radioactivity released into the environment during the Chernobyl accident. In addition, there is a special kind of particles, so called shelter-derived fuel containing material (FCM), that formed as a consequence of the cooling of the reactor melt, and was so far only found inside the reactor building. For the first time, a FCM particle was located in and extracted from soil of a former agricultural field 5 km south-southeast of the former nuclear power plant. Using a combination of energy scanning electron microcopy and dispersive x-ray analysis and Secondary Neutral Mass Spectrometry we found that the particle is comprised of a silicon matrix containing evenly distributed amounts of U, Pu and Am. Embedded in that chemically stable matrix are small inclusions of reactor U of varying chemical composition. We could show this particle type to be largely unaffected by weathering under environmental conditions.
ASJC Scopus Sachgebiete
- Umweltwissenschaften (insg.)
- Umweltchemie
- Umweltwissenschaften (insg.)
- Abfallwirtschaft und -entsorgung
- Umweltwissenschaften (insg.)
- Umweltverschmutzung
- Umweltwissenschaften (insg.)
- Gesundheit, Toxikologie und Mutagenese
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in: Journal of Environmental Radioactivity, Jahrgang 286, 107699, 06.2025.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Spatially resolved isotope analysis of a Chernobyl corium fragment extracted from environmental soil
AU - Schulz, Wolfgang Dietrich
AU - Weiß, Martin
AU - Raiwa, Manuel Alexander Christoph
AU - Walther, Clemens
AU - Leifermann, Laura
N1 - Publisher Copyright: © 2025 The Authors
PY - 2025/6
Y1 - 2025/6
N2 - Micrometer sized particles accounted for a considerable fraction of the radioactivity released into the environment during the Chernobyl accident. In addition, there is a special kind of particles, so called shelter-derived fuel containing material (FCM), that formed as a consequence of the cooling of the reactor melt, and was so far only found inside the reactor building. For the first time, a FCM particle was located in and extracted from soil of a former agricultural field 5 km south-southeast of the former nuclear power plant. Using a combination of energy scanning electron microcopy and dispersive x-ray analysis and Secondary Neutral Mass Spectrometry we found that the particle is comprised of a silicon matrix containing evenly distributed amounts of U, Pu and Am. Embedded in that chemically stable matrix are small inclusions of reactor U of varying chemical composition. We could show this particle type to be largely unaffected by weathering under environmental conditions.
AB - Micrometer sized particles accounted for a considerable fraction of the radioactivity released into the environment during the Chernobyl accident. In addition, there is a special kind of particles, so called shelter-derived fuel containing material (FCM), that formed as a consequence of the cooling of the reactor melt, and was so far only found inside the reactor building. For the first time, a FCM particle was located in and extracted from soil of a former agricultural field 5 km south-southeast of the former nuclear power plant. Using a combination of energy scanning electron microcopy and dispersive x-ray analysis and Secondary Neutral Mass Spectrometry we found that the particle is comprised of a silicon matrix containing evenly distributed amounts of U, Pu and Am. Embedded in that chemically stable matrix are small inclusions of reactor U of varying chemical composition. We could show this particle type to be largely unaffected by weathering under environmental conditions.
KW - Hot Particles
KW - Fuel containing materials
KW - FCM
KW - Weathering
KW - SNMS
KW - Chernobyl lava
KW - Hot particles
UR - http://www.scopus.com/inward/record.url?scp=105003193539&partnerID=8YFLogxK
U2 - 10.1016/j.jenvrad.2025.107699
DO - 10.1016/j.jenvrad.2025.107699
M3 - Article
VL - 286
JO - Journal of Environmental Radioactivity
JF - Journal of Environmental Radioactivity
SN - 0265-931X
M1 - 107699
ER -