| Article | |
| Title | Beam Dynamics and RF Design Studies for the New RFQ for CERN Linac4 Upgrade |
| Author(s) | Pommerenke, Hermann (CERN) ; Bellodi, Giulia (CERN) ; Grudiev, Alexej (CERN) ; Kumar, Sarvesh (CERN) ; Lombardi, Alessandra (CERN) |
| Publication | 2022 |
| Number of pages | 4 |
| In: | JACoW LINAC 2022 (2022) 430-433 |
| In: | 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.430-433 |
| DOI | 10.18429/JACoW-LINAC2022-TUPOPA10 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | CERN LINAC4 |
| Abstract | The 352 MHz Linac4-RFQ is the first rf accelerating structure of the CERN accelerator complex, accelerating an H-beam to 3 MeV. After successful commissioning in 2013, superficial vane damage has been observed in 2020. In view that the RFQ is a single point of failure, in parallel to the production of a near identical spare (RFQ2), design studies on a longer-term upgrade have been launched: Linac4-RFQ3. Main goals are to achieve a design with higher beam acceptance, reduced beam losses, and reduced rf breakdown rate. Several versions of RFQ are under study: conventional RFQs built by brazing copper, as well as an RFQ with titanium vane tips (brazed on copper). High-gradient experiments suggest that titanium vane tips support higher surface fields compared to copper, up to 40 MV/m, and are more resistant against beam irradiation. In this paper, we present beam dynamics and rf design of various RFQ3 designs. |
| Copyright/License | publication: (License: CC-BY-4.0) |
Corresponding record in: Inspire
Záznam vytvorený 2022-12-18, zmenený 2022-12-18
