Speaker
Description
With a focus on the work published in the feasibility study report, this presentation will explore the cryogenic system design and changes made since the feasibility study mid-term review for the FCC-ee machine. Included in this talk will be the status of the heat loads, cryogenic cooling capacities, electrical power consumption, and helium inventory.
The presentation will also address the impacts of the updated Reverse Phase Operation (RPO) RF layout. In this configuration, all cryomodules for the Z, W, and ZH modes will be installed during the initial installation window. Due to RPO, the Z and W stages of the machines will induce cryogenic loads at the level of ZH energy. This revised layout has led to significant changes in the cryogenic system’s staging, installation strategy, and power consumption, which will be discussed in detail.
Finally, the next stage of the cryogenic system design will be discussed along with the objectives to be achieved during the Pre-TDR (Preliminary Technical Design Report) phase.