| Paper | Title | Page |
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| MOZZO04 | New Metallic Stable Ion Beams for GANIL | 54 |
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| GANIL has been producing many stable beams for nearly 40 years. Constant progress has been made in terms of intensity, stability and reliability. The intensity for some stable metallic beams now exceeds or approaches the pµA level at an energy up to 95 MeV/u: 1.14 pµA for 36S (65% enriched) at 77 MeV/u, 0.35 pµA for 58Ni (63%) at 74 MeV/u. The presentation highlights recent results obtained for 28Si, 184W and 130Te using the GANIL ‘s LCO (Large Capacity Oven) on the ECR4 ion source. To produce the tungsten beam, two injection methods were compared. For the first one, we evaporated some tungsten trioxide (WO3) with GANIL ‘s LCO. For the second one, the injection in the plasma chamber was made by using MIVOC (Metallic Ions from VOlatile compounds) with a tungsten hexacarbonyl (W(CO)6) compound. It was the first time that we used metal carbonyl compounds and the result is promising. All the tests have been qualified to obtain the level of intensity and beam stability. Theses good results led us to propose them for Physics experiments. | ||
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Slides MOZZO04 [4.743 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2020-MOZZO04 | |
| About • | Received ※ 25 September 2020 — Revised ※ 16 December 2020 — Accepted ※ 21 January 2021 — Issue date ※ 18 May 2021 | |
| Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |
MOZZO05 |
A New Resistive High Temperature Oven for Metallic Beams Production | |
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For the Super Separator Spectrometer (S3) [1] currently under construction on Spiral 2 facility, metallic beams of high intensities must be delivered to impinge a target aiming to produce rare radioactive isotopes for fundamental nuclear studies. First requested beams are 58Ni, 48Ca, 50Cr, 50Ti or 50V with an intensity about 1,2.1013 pps. The metallic ion beams will be produced by the Phoenix V3 ECR ion source combined with a resistive oven newly designed to cope with the beam specifications. The evaporation of low vapor pressure metallic elements (Ti, V…) requires temperature within a range of 1900°C to 2000°C. A new design of a resistive oven has been developed for this purpose. The oven reached 2000°C in a test vacuum chamber during 8 days. It has worked out in the Electron Cyclotron Resonance Ion Source ECR4 at GANIL for Titanium beam production. Further tests using this ion source are under preparation for Ti and V beam production. Flux and angular distribution of atoms released by the oven are going to be measured off-line for optimizing crucibles geometries. Finally, the oven will be integrated into the Phoenix V3 ECRIS for Ti and V production.
[1] F. Déchery et al., ’The Super Separator Spectrometer image and the associated detection systems: SIRIUS & LEB-REGLIS3’, 376 NIMB 125 (2016) |
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Slides MOZZO05 [2.339 MB] | |
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| WEZZO01 | Role of the 1+ Beam Optics Upstream the SPIRAL1 Charge Breeder | 146 |
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The SPIRAL1 charge breeder (SP1CB) is under opera-tion. Radioactive ion beam (RIB) has already been deliv-ered [1] to Physicist for experiments. Charge breeding efficiencies demonstrated high performances for stable ion beams than RIB’s. The beam optics, prior to the injection of the 1+ ions into the SP1CB, is of prime im-portance [2] for obtaining such high efficiencies. Moreo-ver, the intensities of the RIB’s are so low, and indeed difficult to tune the SP1CB. A stable beam having a close B’ is required to find out the set of optic parameters preceding the tuning of the RIB. Hence, it has been de-cided to focus our effort on the control of 1+ beam optics leading to high charge breeding efficiencies whatever the 1+ mass, energy and Target Ion Source System (TISS) used. This contribution will show the strategy undertaken to overcome that problem and the results obtained.
[1] L. Maunoury et al., Proceedings of the 23th Int. Workshop on ECR Ion Sources, Catania, Italy (2018) [2] A. Annaluru, PhD thesis, Université Caen Normandie (2019) |
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Slides WEZZO01 [4.375 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2020-WEZZO01 | |
| About • | Received ※ 29 September 2020 — Revised ※ 09 October 2020 — Accepted ※ 03 December 2020 — Issue date ※ 21 January 2021 | |
| Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |