Contribution to a conference proceedings

PUBDB-2024-08122

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Optics tuning simulations for FCC-ee using Python Accelerator Toolbox

Musa, E. (Corresponding author)DESY* ; Agapov, I.DESY* ; Charles, T.

2024
JACoW Publishing

This record in other databases:  

Please use a persistent id in citations: doi:10.3204/PUBDB-2025-00052  doi:10.3204/PUBDB-2025-00052

Report No.: arXiv:2410.24129

Abstract: The development of ultra-low emittance storage rings, such as the e+/e- Future Circular Collider (FCC-ee) with a circumference of about 90 km, aims to achieve unprecedented luminosity and beam size. One significant challenge is correcting the optics, which becomes increasingly difficult as we target lower emittances. In this paper, we investigate optics correction methods to address these challenges. We examined the impact of arc region magnet alignment errors in the baseline optics for the FCC-ee lattice at Z energy. To establish realistic alignment tolerances, we developed a sequence of correction steps using the Python Accelerator Toolbox (PyAT) to correct the lattice optics, achieve the nominal emittance, Dynamic Aperture (DA), and in the end, the design luminosity. The correction scheme has been recently optimized and better machine performance demonstrated. A comparison was conducted between two optics correction approaches: Linear Optics from Closed Orbits (LOCO) with phase advance + $\eta_x$ and coupling Resonance Driving Terms (RDTs) + $\eta_y$. The latter method demonstrated better performance in achieving the target emittance and enhancing the DA.

Note: Appears in the proceedings of the 14th International Computational Accelerator Physics Conference (ICAP'24), 2-5 October 2024, Germany JACoW Publikation, noch nicht publiziert

---

Contributing Institute(s):

1. Beschleunigerphysik (MPY)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. FCCIS - Future Circular Collider Innovation Study (951754) (951754)

Experiment(s):

1. Future Circular Collider

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Musa, E.DESY* ; Agapov, I. (Corresponding author)DESY* ; Charles, T.
Optics tuning simulations for FCC-ee using Python Accelerator Toolbox
[10.3204/PUBDB-2025-00052]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---