Radiation Defects in Lime Mortars and Plasters Studied by EPR Spectroscopy
Bibliographic Data
| ID | 9243267 |
|---|---|
| Authors | Zuzanna Kabacińska (0000-0002-8897-6627), D Michalska (0000-0002-9893-4527), Bernadeta Dobosz |
| Year | 2020 |
| Volume | 62 |
| Issue | 3 |
| Pages | 713-724 |
| Publication date | 2020-06-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Radiocarbon (JOURNAL) |
| Journal identifiers | ISSN: 0033-8222 • E-ISSN: 1945-5755 |
| Publisher | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1017/rdc.2020.48 |
| OpenAlex | W3036384280 |
| Language | EN |
| Citations received | 1 |
| References cited | 36 |
Electron paramagnetic resonance (EPR) spectroscopy is a well-established method of dating based on trapped charges, applied to various crystalline materials, including carbonates, bones, and teeth. It provides a detailed insight into the structure of radiation defects—paramagnetic centers generated by irradiation, without the need of a painstaking sample preparation, often challenging in other methods. Using EPR we studied the effect of γ radiation on lime mortars and plasters from ancient settlement Hippos in Israel, in order to analyze the process of defect generation. Analysis of the complex spectra revealed the presence of radiation-induced species, including CO 2 – , NO 3 2– and organic radical. Using an artificial UV source, we generated relatively strong signals of paramagnetic centers, analogous to those created by γ irradiation, reaching their maximum intensity after 5–6 hr of UV exposure. Our results confirm the previous reports that radiation defects can also be generated, instead of bleached, in calcite by UV radiation, which is crucial for identifying the issues related to light exposition, affecting the accuracy of age determinations in trapped-charge dating methods
Calcite · Electron paramagnetic resonance · Electron paramagnetic resonance spectroscopy · Irradiation · Lime · Metallurgy · Mineralogy · Nuclear magnetic resonance · Nuclear physics · Optics · Paramagnetism · Physics · Archaeology and ancient environmental studies · Chemistry · Conservation Techniques and Studies · Cultural Heritage Materials Analysis · Materials Science · Condensed Matter Physics · Radiation · Spectroscopy
Provenance of archaeological limestone with EPR spectroscopy
Modeled and Measured Carbon Isotopic Composition and Petrographically Estimated Binder-Aggregate Ratio—Recipe for Binding Material Dating
Preparation and Dating of Mortar Samples—Mortar Dating Inter-Comparison Study (Modis)
Methodological Aspect of Mortars Dating (Poznań, Poland, Modis)
C Dating of Carbonate Mortars from Polish and Israeli Sites
Radiocarbon Chronology of the Ancient Settlement in the Golan Heights Area, Israel
Years of Mortar Dating
Investigation of Electron Paramagnetic Resonance Peaks in Some Powdered Greek White Marbles
| Citation velocity | historical |
|---|---|
| Highly cited | No |