| Title |
Characterization of the ECR ion source LEGIS extraction system and its low energy beam transport line at Legnaro National Laboratories |
| Authors |
- G.R. Mascali
INFN/LNL, Legnaro (PD), Italy
- L. Bellan, C.S. Gallo, D. Martini, P. Francescon, M. Comunian, O. Carletto, A. Galatà
INFN-LNL, Legnaro (PD), Italy
- G.R. Mascali
Sapienza University of Rome, Rome, Italy
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| Abstract |
At INFN-Legnaro National Laboratories the heavy ions accelerator complex is fed with beams produced by a permanent magnet ECR source called LEGIS (LEGnaro ecrIS). Although suitable intensities and charge states to fulfil the requests of the users are normally guaranteed, the first part of the Low Energy Beam Transport line (LEBT) downstream of the ion source suffers from non-negligible losses and a lack of scalability when switching between ions with different mass-to-charge ratios, thus leading to a machine preparation time longer than would be desirable. These criticalities called for a deep characterization of the beam coming out from the ion source, especially in the case of high charge states heavy ions production, normally showing the lowest intensities. This contribution describes the numerical studies performed on the extraction system of the LEGIS source and its LEBT. The physics case used is a ²⁰⁸Pb³¹⁺ beam produced for a nuclear physics experiment in fall 2022. As will be shown, the results shed light on the reasons for the bad reproducibility and transmission, mostly due to aberrations induced on the extracted beam by the first optical elements.
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| Paper |
download MOD2.PDF [2.891 MB / 5 pages] |
| Slides |
download MOD2_TALK.PDF [7.465 MB] |
| Cite |
download ※ BibTeX
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※ EndNote |
| Conference |
ECRIS2024 |
| Series |
International Workshop on Electron Cyclotron Resonance Ion Sources (26th) |
| Location |
Darmstadt, Germany |
| Date |
15-19 September 2024 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Fabio Maimone (GSI, Darmstadt, Germany); Volker RW Schaa (GSI, Darmstadt, Germany); Raphael Mueller (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-257-8 |
| Online ISSN |
2222-5692 |
| Received |
04 October 2024 |
| Revised |
16 October 2024 |
| Accepted |
29 January 2025 |
| Issued |
15 June 2025 |
| DOI |
doi:10.18429/JACoW-ECRIS2024-MOD2 |
| Pages |
22-26 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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