Details
| Original language | English |
|---|---|
| Journal | Journal of Radioanalytical and Nuclear Chemistry |
| Early online date | 29 Aug 2024 |
| Publication status | E-pub ahead of print - 29 Aug 2024 |
Abstract
Fuel “hot” particles are the most unpredictable dose-forming components in the soils of uranium contaminated regions, such as Chernobyl Exclusion Zone. Over time in the environment, “hot” particles undergo gradual dissolution with the release of uranium as well as fission and neutron-activation products trapped inside the uranium-oxide fuel matrix. The environmental fate of fuel particles depends not only on the environmental conditions but mainly on the conditions of their formation in the reactor and during the accident. In the present work micromorphology, fuel burnup and uranium oxidation state of several fuel “hot” particles, collected on the Western trace of Chernobyl fallout, were studied using a combination of non-destructive or semi-non-destructive techniques: gamma-spectrometry, secondary-ion mass-spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, the X-ray absorption near-edge structure and the high-energy resolution fluorescence-detected X-ray absorption near-edge structure spectroscopy. An attempt has been made to assess the contribution of the conditions of particle formation and the conditions of being in the environment to the current state of particles after more than a quarter of a century of history in the environment. Graphical Abstract: (Figure presented.)
Keywords
- Fuel burnup, Fuel “hot” particles, HERFD-XANES, Uranium oxidation state
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Energy(all)
- Nuclear Energy and Engineering
- Medicine(all)
- Radiology Nuclear Medicine and imaging
- Environmental Science(all)
- Pollution
- Chemistry(all)
- Spectroscopy
- Medicine(all)
- Public Health, Environmental and Occupational Health
- Environmental Science(all)
- Health, Toxicology and Mutagenesis
Sustainable Development Goals
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In: Journal of Radioanalytical and Nuclear Chemistry, 29.08.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Chernobyl fuel microparticles
T2 - uranium oxidation state and isotope ratio by HERFD-XANES and SIMS
AU - Poliakova, Tatiana
AU - Weiss, Martin
AU - Trigub, Alexander
AU - Yapaskurt, Vasiliy
AU - Zheltonozhskaya, Marina
AU - Vlasova, Irina
AU - Walther, Clemens
AU - Kalmykov, Stepan
PY - 2024/8/29
Y1 - 2024/8/29
N2 - Fuel “hot” particles are the most unpredictable dose-forming components in the soils of uranium contaminated regions, such as Chernobyl Exclusion Zone. Over time in the environment, “hot” particles undergo gradual dissolution with the release of uranium as well as fission and neutron-activation products trapped inside the uranium-oxide fuel matrix. The environmental fate of fuel particles depends not only on the environmental conditions but mainly on the conditions of their formation in the reactor and during the accident. In the present work micromorphology, fuel burnup and uranium oxidation state of several fuel “hot” particles, collected on the Western trace of Chernobyl fallout, were studied using a combination of non-destructive or semi-non-destructive techniques: gamma-spectrometry, secondary-ion mass-spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, the X-ray absorption near-edge structure and the high-energy resolution fluorescence-detected X-ray absorption near-edge structure spectroscopy. An attempt has been made to assess the contribution of the conditions of particle formation and the conditions of being in the environment to the current state of particles after more than a quarter of a century of history in the environment. Graphical Abstract: (Figure presented.)
AB - Fuel “hot” particles are the most unpredictable dose-forming components in the soils of uranium contaminated regions, such as Chernobyl Exclusion Zone. Over time in the environment, “hot” particles undergo gradual dissolution with the release of uranium as well as fission and neutron-activation products trapped inside the uranium-oxide fuel matrix. The environmental fate of fuel particles depends not only on the environmental conditions but mainly on the conditions of their formation in the reactor and during the accident. In the present work micromorphology, fuel burnup and uranium oxidation state of several fuel “hot” particles, collected on the Western trace of Chernobyl fallout, were studied using a combination of non-destructive or semi-non-destructive techniques: gamma-spectrometry, secondary-ion mass-spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, the X-ray absorption near-edge structure and the high-energy resolution fluorescence-detected X-ray absorption near-edge structure spectroscopy. An attempt has been made to assess the contribution of the conditions of particle formation and the conditions of being in the environment to the current state of particles after more than a quarter of a century of history in the environment. Graphical Abstract: (Figure presented.)
KW - Fuel burnup
KW - Fuel “hot” particles
KW - HERFD-XANES
KW - Uranium oxidation state
UR - http://www.scopus.com/inward/record.url?scp=85202633114&partnerID=8YFLogxK
U2 - 10.1007/s10967-024-09706-0
DO - 10.1007/s10967-024-09706-0
M3 - Article
AN - SCOPUS:85202633114
JO - Journal of Radioanalytical and Nuclear Chemistry
JF - Journal of Radioanalytical and Nuclear Chemistry
SN - 0236-5731
ER -