Zadvornaya, A, Romero, J, Eronen, T, Gins, W, Kankainen, A, Moore, ID, Papadakis, P 
ORCID: 0000-0001-7509-4257, Pohjalainen, I, Reponen, M, Rinta-Antila, S et al (show 3 more authors)
(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.
pp. 33-42.
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 223Raα-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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Gas cell, MARA-LEB, 223Ra a-recoil source, In-gas laser ionization |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 05 May 2023 09:07 |
| Last Modified: | 23 Aug 2023 15:14 |
| DOI: | 10.1016/j.nimb.2023.03.016 |
| Open Access URL: | https://doi.org/10.1016/j.nimb.2023.03.016 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3170208 |
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