A New QF1 Magnet for ATF3

TL;DR

This paper presents the design of a new adjustable permanent magnet quadrupole magnet for the ATF3 final focus system, comparing it with electromagnetic and hybrid alternatives.

Contribution

It introduces a novel permanent magnet quadrupole design with adjustable strength, expanding options for high field quality magnets in accelerator systems.

Findings

Proposed a permanent magnet quadrupole with adjustable strength.

Compared different quadrupole solutions for ATF3.

Discussed advantages of PMQ over EMQ and hybrid designs.

Abstract

Two high field quality quadrupole magnets QF1FF and QD0FF are required for the final focus system of the ATF3. In this paper we focus on the design of the QF1FF magnet. The proposed design is a permanent magnet quadrupole (PMQ) with adjustable strength. Alternative solutions such as conventional electromagnetic quadrupole (EMQ) and a hybrid quadrupole (combination of permanent magnet and electromagnet) are also presented and briefly discussed.