Speaker
Description
The ASTERIX project, hosted by the INFN–LNF, seeks to achieve the first demonstration of a practical, meter-scale X-band RF accelerating structure suitable for operational linear accelerators (>100 MV/m accelerating gradient). The goal is to produce innovative RF structures to qualify as part of the world-wide scientific collaboration (SLAC/CERN/INFN-LNF/KEK/Tsinghua) for R&D in the accelerator development and high-power testing of innovative cavities with high gradients.
The structure is composed of four-quadrants (“open-type”), made of hard copper, joined and vacuum sealed by using TIG welding (“braze-free” technique) through a cost-effective and robust manufacturing.
The full-structure RF design, in single-bunch operation mode, was carried out with the 3D numerical simulation codes Ansys HFSS and CST Microwave Studio.
In this paper, we report on the engineering of the full-structure prototype optimized for low RF power measurements and initial mechanical tests in order to validate the quadrant straightness and alignment, the TIG welding process, the vacuum tightness; etc. The proto-type was fabricated with lower precision of geometric dimensions and more relaxed mechanical tolerances.
Funding Agency
This work was supported supported by the scientific committee V of INFN.
| Paper status | Resubmitted proceeding files received and assigned to an editor. Accepted by Submitter. |
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