Efficient radiocarbon measurements on marine and terrestrial samples with single stage Accelerator Mass Spectrometry at the Atmosphere and Ocean Research Institute, University of Tokyo

Yusuke Yokoyama*, Yosuke Miyairi, Takahiro Aze, Chikako Sawada, Yuka Ando, Satomi Izawa, Yoshiko Ueno, Shoko Hirabayashi, Naoto Fukuyo, Kosuke Ota, Yusuke Shimizu, Yuning Zeng, Hui Lan, Ren Tsuneoka, Kozue Ando, Karin Nemoto, Stephen Obrochta, Bethany Behrens, Evan Tam, Kai LeggettJian Rzeszewicz, Zihan Huang, Reisuke Kondo, Toshi Nagata

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    Abstract

    A single stage Accelerator Mass Spectrometer (National Electrostatic Corporation, YS-AMS) at the Atmosphere and Ocean Research Institute (AORI), University of Tokyo has operated smoothly since 2013. The average annual operation hours exceeded 8000 h/year for the last two years, allowing for measurement of up to 2912 samples/year (including standards). A newly developed in-house automated system increased the throughput dramatically, with a total of 16,000 samples measured to date. A 14C/12C measurement precision on standard material is better than 0.1 % due to and improved operation software system and an increased number of standards measured per run. Results have improved geochronological information for paleoenvironmental, biological, and geohazard studies.

    Original languageEnglish
    Pages (from-to)62-67
    Number of pages6
    JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Volume532
    DOIs
    Publication statusPublished - 1 Dec 2022

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