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| Title | Data on C-14 activities in tree rings since 1959 near the Tokai nuclear facilities, Japan | |
|---|---|---|
| Author 1 | Tetsuya Matsunaka | |
| Author 2 | Kimikazu Sasa | |
| Author 3 | Tsutomu Takahashi | |
| Author 4 | Seiji Hosoya | |
| Authors 5- | Masumi Matsumura, Yukihiko Satou, Hongtao Shen, Keisuke Sueki | |
| Subject | Ecology | |
| Subject_sub1 | ||
| Subject_sub2 | ||
| Abstract | This dataset provides the comprehensive measurement results of radiocarbon (C-14) activities in tree rings compiled in the associated published paper (Matsunaka et al., 2019, DOI: 10.1016/j.nimb.2018.12.009). The dataset consists of Fraction modern, C-14 activities, and estimated annual effective doses via the food ingestion pathway. The C-14 data tracks the temporal variations from 1959 to 2013 in pine tree (Pinus thunbergii) at site TK-1, located 1.8km southwest of the Tokai Nuclear Power Plants (Tokai NPP and Tokai-2 NPP) and 1.4km north northwest of the Tokai Reprocessing Plant (Tokai RP), Japan. The purified samples were graphitized using an automated pretreatment system, and measurements of C-14/C-12 and C-13/C-12 ratios were subsequently determined by accelerator mass spectrometry (AMS). | |
| Temporal coverage | 1959–2013 | |
| Spatial coverage | 36.4757N, 140.6014E | |
| File format | ||
| Language | English | |
| Discovery metadata record | ||
| Publisher | Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba | |
| Publication year | 2026 | |
| Publication date | 14th of June | |
| Digital Object Identifier (DOI) | 10.34355/Ki-net.KANAZAWA-U.00358 Data Download (26 KB) | |
| Short DOI | ||
| Citation text | Matsunaka, T., Sasa, K., Takahashi, T., Hosoya, S., Matsumura, M., Satou, Y., Shen, H., & Sueki, K. (2026). Data on C-14 activities in tree rings since 1959 near the Tokai nuclear facilities, Japan [Dataset]. Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba. https://doi.org/10.34355/Ki-net.KANAZAWA-U.00358 | |
| Serial at center | 00358 | |
| Serial at each Univ./Institute | KANA0040 | |
| Key word 1 | C-14 | |
| Key word 2 | Tree ring | |
| Key word 3 | Tokai nuclear facilities | |
| Key word 4 | Accelerator mass spectrometry | |
| Key word 5 | Effective dose | |
| Remarks | ||