Machine-Related Backgrounds in the SiD Detector at ILC

TL;DR

This paper models and compares machine-related backgrounds to collision-induced backgrounds in the SiD detector at ILC, highlighting the effectiveness of collimation and shielding in reducing particle fluxes.

Contribution

It provides detailed modeling of machine-related backgrounds in the SiD detector, including the impact of collimation and shielding systems.

Findings

Background fluxes can be significantly reduced with collimation and spoilers.

Some secondary particles still exceed tolerable levels for certain sub-detectors.

Modeling results help optimize detector shielding and background mitigation strategies.

Abstract

With a multi-stage collimation system and magnetic iron spoilers in the tunnel, the background particle fluxes on the ILC detector can be substantially reduced. At the same time, beam-halo interactions with collimators and protective masks in the beam delivery system create fluxes of muons and other secondary particles which can still exceed the tolerable levels for some of the ILC sub-detectors. Results of modeling of such backgrounds in comparison to those from the e+ e- interactions are presented in this paper for the SiD detector.