| Title |
Matching of an RFQ and Multicusp Ion Source with Compact LEBT |
| Authors |
- L.H. Waites, J.M. Conrad, J. Smolsky, D. Winklehner
MIT, Cambridge, Massachusetts, USA
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| Abstract |
The IsoDAR project is a neutrino experiment that requires a high current H²⁺ beam at 60 MeV/amu, which will be produced by a cyclotron. A critical aspect of the design is the injection, which comprises an ion source, a compact low energy beam transport section (LEBT), and a radio-frequency quadrupole (RFQ) buncher embedded in the cyclotron yoke. The LEBT is optimized to match the desired input Twiss parameters of the RFQ. Here we report on the latest results from the ion source commissioning, and on the design and optimization of the LEBT with matching to the RFQ. With this ion source, we have demonstrated a 76% H²⁺ fraction at a current density of 11 mA/cm² in DC mode. The design of the LEBT includes a chopper, steering elements, and focusing elements, to achieve the desired matching, which according to our simulations leads to ~95% transmission from the ion source to the exit of the RFQ.
|
| Funding |
NSF provided funding for RFQ-DIP project, Draper Laboratory provided fellowship for graduate studnets |
| Paper |
download MOPAB159.PDF [0.731 MB / 4 pages] |
| Poster |
download MOPAB159_POSTER.PDF [0.851 MB] |
| Export |
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| Conference |
IPAC2021 |
| Series |
International Particle Accelerator Conference (12th) |
| Location |
Campinas, SP, Brazil |
| Date |
24-28 May 2021 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Liu Lin (LNLS, Campinas, Brazil); John M. Byrd (ANL, Lemont, IL, USA); Regis Neuenschwander (LNLS, Campinas, Brazil); Renan Picoreti (LNLS, Campinas, Brazil); Volker R. W. Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-214-1 |
| Online ISSN |
2673-5490 |
| Received |
15 May 2021 |
| Accepted |
24 June 2021 |
| Issue Date |
13 August 2021 |
| DOI |
doi:10.18429/JACoW-IPAC2021-MOPAB159 |
| Pages |
546-549 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 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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