Speakers
Description
The European Synchrotron Radiation Facility – Extremely Brilliant Source (ESRF-EBS) upgrade has enabled users, since August 25, 2020, to benefit from the first high-energy fourth-generation storage ring light source. For cost and scheduling considerations, the booster injector was refurbished rather than upgraded. However, the long-term ESRF strategy envisions an upgrade of the injector complex to a full-energy 6 GeV linear accelerator (linac). Such a linac must be accommodated within the ESRF site, imposing a maximum footprint of approximately 145 m. To meet this constraint, high-gradient accelerating structure technology developed at SLAC has been selected as a key enabling solution for achieving a compact design. The implementation of a photoelectron gun is expected to deliver a beam with a reduced six-dimensional phase space at extraction, while the adoption of a pulse compression scheme to power the SLAC-type structures offers significant cost reduction. This poster presents the Cool Copper Operation Linac Demonstrator (COLD) project, recently initiated at ESRF. The project aims to develop a pre-injector linac and to validate the critical technologies required for a high-gradient, cost-effective 6 GeV linac.