The new 300 kV multi-element AMS system at the TONO Geoscience Center, Japan Atomic Energy Agency

Fujita, Naotoshi; Miyake, Masakazu; Matsubara, Atsushi; Saito‐Kokubu, Yoko; Klein, M.; Scognamiglio, Grazia; Mous, D.J.W.; Columna, Erickson L.; Shimada, A.; Ishimaru, Tsuneari

doi:10.1016/j.nimb.2022.10.020

Cited by 2 publications

(1 citation statement)

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“…Scientific progress allows for new types of ion sources, accelerators and detectors, which result in the design and production of compact and economic AMS systems, like MILEA. Thus, AMS systems with a low terminal voltage in the sub-500 kV range have recently become available (Synal et al 2007;Christl et al 2013;Zondervan et al 2015;Maxeiner et al 2019;Gautschi et al 2021;Scognamiglio et al 2021;Fujita et al 2021;Saito-Kokubu et al 2021). Although the majority of such AMS systems are dedicated 14 C facilities, which are capable of providing high measurement efficiency, stability and reproducibility even at accelerator voltages down to 50 kV (Synal 2020), an increasing number of low-voltage AMS systems were constructed in recent years, which retain the multi-isotope capability.…”

Section: Introductionmentioning

confidence: 99%

Status report of the first AMS laboratory in the Czech Republic at the Nuclear Physics Institute, Řež

et al. 2023

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The first accelerator mass spectrometry (AMS) laboratory in the Czech Republic has been established and put into routine operation in February 2022. Here we briefly describe the facilities available, namely a 300 kV multi-isotope low-energy AMS system (MILEA) capable of determination 10Be, 14C, 26Al, 41Ca, 129I, isotopes of U, especially 236U, Pu and other actinoids, and accessories for 14C measurements, which include a gas interface system, a preparative gas chromatography system for compound-specific radiocarbon dating analysis, and an isotope-ratio mass spectrometer. The first results achieved for separation and measurement of the above radionuclides (except for 41Ca) are also reported, with the main focus on 14C measurements. A specimen breakdown of 729 graphitised samples analysed for 14C so far is presented, as well as a proof of measurement stability of the MILEA system obtained by analysis of radiocarbon standards and analytical blanks. For the other radionuclides, well proven or novel procedures for sample preparation and measurement are presented.

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