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| Title | Assessing the Effect of Laboratory Environment on Sample Contamination for I-129 Accelerator Mass Spectrometry | |
|---|---|---|
| Author 1 | Masumi Matsumura | |
| Author 2 | Kimikazu Sasa | |
| Author 3 | Tetsuya Matsunaka | |
| Author 4 | Keisuke Sueki | |
| Authors 5- | Tsutomu Takahashi, Hiroyuki Matsuzaki | |
| Subject | Atmosphere | |
| Subject_sub1 | Land Surface | |
| Subject_sub2 | ||
| Abstract | This dataset provides a one-year record (July 2013 – August 2014) of atmospheric iodine-129 (I-129) and stable iodine (I-127) contamination monitored across nine laboratory rooms at University of Tsukuba. The primary objective was to evaluate environmental contamination risks that could lead to overestimates in high-sensitivity accelerator mass spectrometry (AMS) measurements. Utilizing a simple alkaline trap solution method, the dataset captures temporal variations in I-129 contamination rates (atoms cm^-2 day^-1) and I-129/I-127isotopic ratios. The monitored rooms were categorized into five types based on their sample-treatment histories. The data demonstrate that I-129 levels are strongly dependent on room history, with contamination rates ranging from environmental background levels (~10^4 atoms cm^-2 day^-1) to significantly higher levels (10^6–10^7 atoms cm^-2 day^-1) in rooms handling neutron-activated iodine. This dataset serves as a critical reference for validating AMS measurement reliability and assessing laboratory contamination risks. The dataset corresponds to Table 1 and Table S1 of the published study, Matsumura, M., Sasa, K., Matsunaka, T., Sueki, K., Takahashi, T., & Matsuzaki, H. (2020). Assessing the effect of laboratory environment on sample contamination for i-129 Accelerator Mass spectrometry. Analytical Sciences, 36(5), 631–635. https://doi.org/10.2116/analsci.20sbn05 | |
| Temporal coverage | 2013–2014 | |
| Spatial coverage | 36.1107418 N, 140.101557 E | |
| 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 | 19th of June | |
| Digital Object Identifier (DOI) | 10.34355/CRIES.U.Tsukuba.00359 Data Download (26 KB) | |
| Short DOI | ||
| Citation text | Matsumura, M., Sasa, K., Matsunaka, T., Sueki, K., Takahashi, T., & Matsuzaki, H. (2026). Assessing the Effect of Laboratory Environment on Sample Contamination for I-129 Accelerator Mass Spectrometry [Dataset]. Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba. https://doi.org/10.34355/CRIES.U.Tsukuba.00359 | |
| Serial at center | 00359 | |
| Serial at each Univ./Institute | TSUK0075 | |
| Key word 1 | Atmospheric I-129 | |
| Key word 2 | Sample preparation room | |
| Key word 3 | Room contamination level | |
| Key word 4 | Contamination risk | |
| Key word 5 | Background level | |
| Remarks | ||