Simulations of a cryogenic, buffer-gas filled Paul trap for low-emittance ion bunches

Lechner S, Sels S, Belosevic I, Buchinger F, Fischer P, Kanitz C, Lagaki V, Maier FM, Plattner P, Schweikhard L, Vilen M, Malbrunot-Ettenauer S (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Elsevier

Book Volume: 1065

Article Number: 169471

DOI: 10.1016/j.nima.2024.169471

Abstract

Many experiments with pulsed ion beams benefit from or even require ion bunches with both small temporal width as well as small energy spread. To achieve optimal ion-beam preparation, a buffer-gas filled cryogenic Paul trap is being developed in the context of the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS). There, ion bunches of short-lived radionuclides are trapped in a Multi-Reflection Time-of-Flight (MR-ToF) device. Thus, the ions can be repeatedly probed by a laser beam compared to only once in conventional, single-passage collinear laser spectroscopy. To fulfill MIRACLS’ opposing requirements of a small temporal ion-bunch width and small energy spread, a buffer-gas filled cryogenic Paul trap is envisioned. Ion-optical simulations confirm the advantages of cryogenic temperatures and the linear scaling of the beam emittance as a function of the buffer-gas temperature. Beyond MIRACLS, high-quality ion beams from a cryogenic Paul trap will be beneficial for other precision experiments at radioactive ion beam facilities.

Involved external institutions

Europäische Organisation für Kernforschung (CERN) CH Switzerland (CH) Triumf CA Canada (CA) McGill University CA Canada (CA) Universität Greifswald DE Germany (DE)

How to cite

APA:

Lechner, S., Sels, S., Belosevic, I., Buchinger, F., Fischer, P., Kanitz, C.,... Malbrunot-Ettenauer, S. (2024). Simulations of a cryogenic, buffer-gas filled Paul trap for low-emittance ion bunches. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1065. https://doi.org/10.1016/j.nima.2024.169471

MLA:

Lechner, S., et al. "Simulations of a cryogenic, buffer-gas filled Paul trap for low-emittance ion bunches." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1065 (2024).

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