Stacked-ring ion guide for cooling and bunching rare isotopes

Chen, XC; Even, J.; Fischer, Paul; Schlaich, M.; Schlathölter, Thomas; Schweikhard, L.; Soylu, A.

doi:10.1016/j.ijms.2022.116856

Cited by 2 publications

(2 citation statements)

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“…Figure 4 shows the model of the novel stacked-ring ion guide. Details concerning its design and the simulation of the ion transmission efficiency can be found in reference [15]. The ion guide consists of a stack of 78 ring electrodes.…”

Section: Gas-catcher Ion Guide and Mr-tof Msmentioning

confidence: 99%

“…The target-like products are focused towards the end of the solenoid, where they are stopped in a gas-catcher [14]. The transfer products are extracted and bunched by a stacked-ring ion guide [15] before they are injected into a multireflection time-of-flight mass spectrometer (MR-ToF MS) [16][17][18] for isobaric separation and mass measurements. Figure 1 shows a schematic overview of the setup.…”

Section: Introductionmentioning

confidence: 99%

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The NEXT Project: Towards Production and Investigation of Neutron-Rich Heavy Nuclides

Even

Chen

Soylu

et al. 2022

Atoms

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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.

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Section: Gas-catcher Ion Guide and Mr-tof Msmentioning

confidence: 99%