Characteristic study of silicon sensor for ILD ECAL

TL;DR

This paper investigates silicon sensors for the ILD ECAL, focusing on their temperature and humidity effects on dark current and laser response to ensure high spatial resolution for jet energy measurement at the ILC.

Contribution

It provides new insights into the environmental dependence of silicon sensor performance for high-precision calorimetry in particle physics experiments.

Findings

Dark current varies with temperature and humidity.

Sensor response to laser injection is affected by environmental conditions.

Temperature and humidity influence sensor stability and performance.

Abstract

Excellent jet energy measurement is important at the International Linear Collider (ILC) because most of interesting physics processes decay into multi-jet final states. We employ a particle flow method to reconstruct particles, hence International Large Detector (ILD) needs high spatial resolution which can separate each particle in jets. We study pixelized silicon sensors as active material of ILD Silicon electro- magnetic calorimeter (SiECAL). This paper reports studies of temperature and humidity dependence on dark current and response of laser injection.