19–24 May 2024
Music City Center
US/Central timezone

Optimisation of a permanent magnet multi-energy FFA arc for the CEBAF energy upgrade

TUPC22
21 May 2024, 16:00
2h
Country (MCC Exhibit Hall A)

Country

MCC Exhibit Hall A

Poster Presentation MC1.A12 FFA Tuesday Poster Session

Speaker

Stephen Brooks (Brookhaven National Laboratory)

Description

It is currently planned to increase the energy of the CEBAF recirculating linear accelerator to 20 GeV or more by adding two new recirculating arcs that contain multiple new energy passes. The beam is continuous (CW), so no field ramping is desired, making this a fixed-field accelerator (FFA). The wide energy range requires a low dispersion lattice that can be created with high-gradient permanent magnets. One constraint is the existing tunnel radius in relation to the fields achievable by practically-sized permanent magnets. Thus, searching for the most efficient implementation in terms of magnet material volume is important. In this paper, a lattice cell search and optimization is conducted that evaluates cells by the magnet volume per unit length, with the permanent magnet designs also produced via an automated code. The new lattice cells are compared to the previous manually designed cell.

Funding Agency

Brookhaven National Laboratory / Department of Energy

Region represented North America
Paper preparation format LaTeX

Primary author

Stephen Brooks (Brookhaven National Laboratory)

Co-author

Dejan Trbojevic (Brookhaven National Laboratory)

Presentation materials

There are no materials yet.