Offline commissioning of a new gas cell for the MARA Low-Energy Branch
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 đŒ-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 JyvĂ€skylĂ€.
Main Authors
Format
Articles
Research article
Published
2023
Series
Subjects
Publication in research information system
Publisher
Elsevier
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202304252692Use this for linking
Review status
Peer reviewed
ISSN
0168-583X
DOI
https://doi.org/10.1016/j.nimb.2023.03.016
Language
English
Published in
Nuclear Instruments and Methods in Physics Research. Section B : Beam Interactions with Materials and Atoms
Citation
- 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
License
Funder(s)
European Commission
Research Council of Finland
Funding program(s)
ERC Consolidator Grant
Academy Project, AoF
ERC Consolidator Grant
Akatemiahanke, SA
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Education and Culture Executive Agency (EACEA). Neither the European Union nor EACEA can be held responsible for them.
Additional information about funding
This project has received funding from the Academy of Finland under project number 315179 (In-gas-jet laser spectroscopy near the proton dripline). A.Z. acknowledges funding from the European Unionâs Horizon 2020 research and innovation program under grant agreement No. 771036 (ERC CoG MAIDEN).
Copyright© 2023 The Author(s). Published by Elsevier B.V.