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| URL | https://doi.org/10.18429/JACoW-EBIST2022-FR3WH02 |
|---|---|
| Title | Progress and status of RAON EBIS charge breeder |
| Authors |
|
| Abstract | An electron beam ion source (EBIS) was considered as a charge breeder for rare isotopes produced from isotope separation on-line (ISOL) system of the heavy ion accelerator RAON in Korea. The off-line installation of the RAON EBIS was conducted at the Korea University, Sejong from 2017 to 2020. A lot of effort went into getting very low vacuum pressure of around 1E-10 torr at the breeding region adopting cryopumps and getter pumps as well as vacuum-firing the chambers. In order to find and align the central magnetic field lines of the solenoids, we used a gimbal mount for a hall probe with rotation, tilt, and translation functions. With the help of four sets of steering coils around the drift tube chamber, we successfully transport electron beam of 2 A at a magnetic field of 6 T producing charge bred ions from the residual gas. After confirming the performance of our EBIS system at the off-line site, we moved it to RAON accelerator site at Shindong and started the on-line installation from 2021. Cesium test ion beam was used for the first charge breeding experiment showing a relative abundance of Cs27+ ions more than 20 % with electron beam current of 1 A in breeding time of 40 ms. |
| Paper | download: FR3WH02.pdf |
| Cite | BibTeX, LaTeX, Text/Word, RIS, EndNote |
| Conference | 14th International Symposium on EBIS/T |
| Series | |
| Location | Whistler BC, Canada |
| Date | 14-17 Jun 2022 |
| Publisher | JACoW Publishing, Geneva, Switzerland |
| Editorial Board | Oliver Kester, TRIUMF |
| Online ISBN | 978-3-95450-239-4 |
| Online ISSN | none |
| Received | 29 November 2023 |
| Revised | 29 November 2023 |
| Accepted | 17 December 2024 |
| Issued | 05 May 2025 |
| DOI | 10.18429/JACoW-EBIST2022-FR3WH02 |
| Pages | 34-37 |
| Copyright | Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |