The NEXT Project: Towards Production and Investigation of Neutron-Rich Heavy Nuclides
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- Julia Even
- Faculty of Science and Engineering, University of Groningen, 9701 BA Groningen, The Netherlands
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- Xiangcheng Chen
- Faculty of Science and Engineering, University of Groningen, 9701 BA Groningen, The Netherlands
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- Arif Soylu
- Faculty of Science and Engineering, University of Groningen, 9701 BA Groningen, The Netherlands
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- Paul Fischer
- Institut für Physik, Universität Greifswald, 17487 Greifswald, Germany
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- Alexander Karpov
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
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- Vyacheslav Saiko
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
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- Jan Saren
- Department of Physics, University of Jyväskylä, 40014 Jyväskylä, Finland
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- Moritz Schlaich
- Institut für Kernphysik, Technical Univeristy of Darmstadt, 64289 Darmstadt, Germany
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- Thomas Schlathölter
- Faculty of Science and Engineering, University of Groningen, 9701 BA Groningen, The Netherlands
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- Lutz Schweikhard
- Institut für Physik, Universität Greifswald, 17487 Greifswald, Germany
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- Juha Uusitalo
- Department of Physics, University of Jyväskylä, 40014 Jyväskylä, Finland
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- Frank Wienholtz
- Institut für Kernphysik, Technical Univeristy of Darmstadt, 64289 Darmstadt, Germany
説明
<jats:p>The heaviest actinide elements are only accessible in accelerator-based experiments on a one-atom-at-a-time level. Usually, fusion–evaporation reactions are applied to reach these elements. However, access to the neutron-rich isotopes is limited. An alternative reaction mechanism to fusion–evaporation is multinucleon transfer, which features higher cross-sections. The main drawback of this technique is the wide angular distribution of the transfer products, which makes it challenging to catch and prepare them for precision measurements. To overcome this obstacle, we are building the NEXT experiment: a solenoid magnet is used to separate the different transfer products and to focus those of interest into a gas-catcher, where they are slowed down. From the gas-catcher, the ions are transferred and bunched by a stacked-ring ion guide into a multi-reflection time-of-flight mass spectrometer (MR-ToF MS). The MR-ToF MS provides isobaric separation and allows for precision mass measurements. In this article, we will give an overview of the NEXT experiment and its perspectives for future actinide research.</jats:p>
収録刊行物
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- Atoms
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Atoms 10 (2), 59-, 2022-06-01
MDPI AG