A1 Journal article (refereed)
Offline commissioning of a new gas cell for the MARA Low-Energy Branch (2023)


Zadvornaya, A., Romero, J., Eronen, T., Gins, W., Kankainen, A., Moore, I. D., Papadakis, P., Pohjalainen, I., Reponen, M., Rinta-Antila, S., Sarén, J., Simonovski, D., & Uusitalo, J. (2023). Offline commissioning of a new gas cell for the MARA Low-Energy Branch. Nuclear Instruments and Methods in Physics Research. Section B : Beam Interactions with Materials and Atoms, 539, 33-42. https://doi.org/10.1016/j.nimb.2023.03.016


JYU authors or editors


Publication details

All authors or editors: Zadvornaya, A.; Romero, J.; Eronen, T.; Gins, W.; Kankainen, A.; Moore, I. D.; Papadakis, P.; Pohjalainen, I.; Reponen, M.; Rinta-Antila, S.; et al.

Journal or series: Nuclear Instruments and Methods in Physics Research. Section B : Beam Interactions with Materials and Atoms

ISSN: 0168-583X

eISSN: 1872-9584

Publication year: 2023

Publication date: 24/03/2023

Volume: 539

Pages range: 33-42

Publisher: Elsevier

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1016/j.nimb.2023.03.016

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/86581

Additional information: The results presented in this paper are based on work performed before Feb 24th 2022.


Abstract

Results of offline commissioning tests for a new dedicated gas cell for the Mass Analysing Recoil Apparatus
(MARA) Low-Energy Branch are reported. Evacuation time, ion survival and transport efficiency in helium
buffer gas were characterized with a radioactive 223Ra 𝛼-recoil source. Suppression of the ion signal, originating from non-neutralized species in the gas cell, was explored with 219Rn ions, the daughter recoil of 223Ra, as a function of voltage applied to one of the ion-collector electrodes. Two-step laser resonance ionization of stable tin isotopes produced inside the gas cell from a heated bronze filament was demonstrated, and broadening of the atomic resonances in argon buffer gas was studied. These tests indicate the suitability of the new gas cell for future in-gas laser spectroscopy studies of exotic nuclei at the Accelerator Laboratory of the University of Jyväskylä.


Keywords: nuclear physics; research equipment

Free keywords: gas cell; MARA-LEB; 223Ra α-recoil source; in-gas laser ionization


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Ministry reporting: Yes

VIRTA submission year: 2023

JUFO rating: 2


Last updated on 2024-03-07 at 00:07