Laser ablation positive-ion AMS of neutron activated actinides

Autor: Philippe Collon, S. Baker, M.T. Giglio, T. Palchan-Hazan, W. Bauder, Jeremy M Berg, D. Seweryniak, O. Nusair, G. Youinou, C. Nair, Massimo Salvatores, Rashi Talwar, C. L. Jiang, R. C. Pardo, R. C. Vondrasek, Michael Paul, G. Imel, Giuseppe Palmiotti, R. Scott, F. G. Kondev, J. Giglio
Rok vydání: 2019
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 438:172-179
ISSN: 0168-583X
Popis: At Argonne we have enhanced the AMS capabilities of the Argonne Tandem Linac Accelerator System (ATLAS) to attempt to minimize crosstalk between samples and to quickly move from one (M/Q) setting to another in order to make measurements on a large number of samples provided by the MANTRA (Measurement of Actinide Neutron Transmutation Rates by Accelerator mass spectrometry) project. Those improvements include the use of a picosecond laser to ablate actinide material into the source, a new 20-sample holder that can switch samples within 1–2 min, and a number of accelerator configuration improvements that allow quick and precise switching between species. In principle, AMS can provide production yields of actinide isotopes produced during the irradiation period at a sensitivity exceeding other mass spectrometry techniques. A total of 27 irradiated samples of a variety of actinides have been provided for measurement. We discuss our experience with these facility improvements and how well we have met our performance goals. In addition, we present preliminary results on a number of the irradiated actinide samples with this approach and compare those results to Multi-Collector ICPMS measurements.
Databáze: OpenAIRE
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