Finite Elements Magnetic Analysis of the CLIC MDI Region

TL;DR

This paper discusses the design and analysis of a superconducting anti-solenoid for magnetic shielding of the QD0 quadrupole in the CLIC detector, addressing integration challenges and magnetic interference issues.

Contribution

It introduces a finite element method for designing the anti-solenoid and presents results and ongoing challenges in optimizing magnetic shielding for the CLIC MDI region.

Findings

Successful design of the anti-solenoid using finite element analysis

Identification of key issues in magnetic shielding effectiveness

Ongoing development to improve integration and performance

Abstract

Considering the current CLIC SiD detector design and the machine parameter L*, the final focus quadrupole QD0 will be placed inside the experiment itself. This configuration is very challenging from an integration point of view. Among several other aspects, the iron-dominated QD0 will need an active magnetic shielding to avoid undesired interactions with the magnetic field generated by the main solenoid of the detector. This shielding will be provided by a superconducting anti-solenoid, and this paper aims to describe the method used to design such device, the results obtained and the issues still to be solved.