ICOS ATC 14C Release analysed by ICOS CRL, Norunda (100.0 m), 2015-09-29–2023-11-14

The ICOS Central Radiocarbon Laboratory (CRL) central task is the high-precision measurement of the ¹⁴C content in atmospheric CO₂. The ¹⁴CO₂ activity is determined for grab samples (flask) as well as for two-week integrated ambient air samples. Two ¹⁴CO₂ analytical techniques are applied in the CRL: Accelerator Mass Spectrometry (AMS) in collaboration with the CEZA laboratory in Mannheim, Germany (Lux, 2019), and Low-Level gas proportional Counting (LLC) (Kromer & Münnich, 1992). The comparability of both measurement techniques is continuously monitored and was documented in Hammer et al. (2017)
Lux, J. T. (2018). A new target preparation facility for high precision AMS measurements and strategies for efficient ¹⁴CO₂ sampling (Doctoral dissertation). DOI: https://doi.org/10.11588/heidok.00024767
Kromer, B., & Münnich, K. O. (1992). CO₂ gas proportional counting in radiocarbon dating—review and perspective. Radiocarbon after four decades, 184-197. DOI: https://doi.org/10.1007/978-1-4757-4249-7_13
Hammer, S., Friedrich, R., Kromer, B., Cherkinsky, A., Lehman, S. J., Meijer, H. A., ... & Uchida, M. (2017). Compatibility of Atmospheric ¹⁴CO₂ Measurements: Comparing the Heidelberg Low-Level Counting Facility to International Accelerator Mass Spectrometry (AMS) Laboratories. Radiocarbon, 59(3), 875-883. DOI: https://doi.org/10.1017/RDC.2016.62
See also CEZA laboratory: https://www.ceza.de/en
Lehner, I., Mölder, M. (2024). ICOS ATC 14C Release analysed by ICOS CRL, Norunda (100.0 m), 2015-09-29–2023-11-14, ICOS RI, https://hdl.handle.net/11676/iLezG6TtKctsiEUwBIOn26X-

ICOS中央放射性碳实验室（CRL）的核心任务是进行大气二氧化碳中碳-14含量的高精度测量。该实验室对抓取样品（集气瓶）以及两周集成的环境空气样品进行碳-14二氧化碳活度的测定。在CRL中，应用了两种碳-14二氧化碳分析技术：与德国曼海姆的CEZA实验室合作进行的加速器质谱法（AMS）（Lux, 2019），以及低水平气体比例计数法（LLC）（Kromer & Münnich, 1992）。两种测量技术的可比性得到持续监控，并在Hammer等人（2017）的研究中得到记录。

Lux, J. T. (2018). 高精度AMS测量的新靶标制备设施及高效的碳-14二氧化碳采样策略（博士论文）。DOI: https://doi.org/10.11588/heidok.00024767

Kromer, B., & Münnich, K. O. (1992). 放射性碳年代测定中的二氧化碳气体比例计数——综述与展望。Radiocarbon after four decades，184-197。DOI: https://doi.org/10.1007/978-1-4757-4249-7_13

Hammer, S., Friedrich, R., Kromer, B., Cherkinsky, A., Lehman, S. J., Meijer, H. A., ... & Uchida, M. (2017). 大气碳-14测量的一致性：比较海德堡低水平计数设施与国际加速器质谱法（AMS）实验室。Radiocarbon，59(3)，875-883。DOI: https://doi.org/10.1017/RDC.2016.62

参见CEZA实验室：https://www.ceza.de/en

Lehner, I., Mölder, M. (2024). ICOS ATC 14C 发布由 ICOS CRL 分析，Norunda（100.0米），2015-09-29–2023-11-14，ICOS RI，https://hdl.handle.net/11676/iLezG6TtKctsiEUwBIOn26X-