Dose-rate estimation using α-Al2O3:C chips: aftermath
We present additional experiments for αAl2O3:C chips used to estimate in situ γ-dose rates. Our contribution supplements the article by Kreutzer et al. (2018) and presents results from previously announced follow-up experiments. (1) We investigate the divergent γ-dose rate results we obtained from c...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2020-06-15
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| In: |
Ancient TL
Year: 2020, Volume: 38, Issue: 1, Pages: 1-10 |
| ISSN: | 0735-1348 |
| DOI: | 10.26034/la.atl.2020.539 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.26034/la.atl.2020.539 Verlag, kostenfrei, Volltext: https://www.ancienttl.org/article/view/6803 
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| Author Notes: | Sebastian Kreutzer, Chantal Tribolo, Loïc Martin, Norbert Mercier |
| Summary: | We present additional experiments for αAl2O3:C chips used to estimate in situ γ-dose rates. Our contribution supplements the article by Kreutzer et al. (2018) and presents results from previously announced follow-up experiments. (1) We investigate the divergent γ-dose rate results we obtained from cross-check experiments for one reference site. (2) We discuss the origin of encountered large inter-aliquot scatter using results from low-level background and calibration measurements. (3) We show that the chip geometries vary considerably, which may partly contribute to additional inter-aliquot scatter, regardless of an overall good reproducibility of results. (4) We report new source-calibration results after replacing the β-source housing of our measurement system, which resulted in an increase of the source dose rate at the sample position by ca 37%. GEANT4 simulations show that the increased dose rate is likely caused by an unfortunate fabrication tolerance of the shutter in front of the β-source, which, in combination with the chip geometry, significantly contributes to the observed inter-aliquot scatter. (5) Finally, we introduce a newly developed shiny application we use at the IRAMAT-CRP2A to analyse α-Al2O3:C measurements. The application is open-source and freely available. |
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| Item Description: | Im Titel sind die Zahlen 2 und 3 jeweils tiefgestellt Gesehen am 27.03.2025 |
| Physical Description: | Online Resource |
| ISSN: | 0735-1348 |
| DOI: | 10.26034/la.atl.2020.539 |