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LGAD Detector Concept for TOPSiDE Project
Preprint   Open access

LGAD Detector Concept for TOPSiDE Project

Kyung-Wook (Taylor) Shin, Jose O Repond, David Blyth, Jessica E Metcalfe, Manoj Jadhav, Abraham Saiden and Hartmut Sadrozinski
arXiv (Cornell University)
Cornell University
12/20/2021
DOI: 10.48550/arxiv.2112.10534
url
https://doi.org/10.48550/arxiv.2112.10534View
Preprint (Author's original) This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

We report a concept low gain avalanche diode (LGAD) detector to be integrated into TOPSiDE, which is being developed for EIC (Electron-Ion Collider) project. The LGAD detector will be taking its place to resolve requirement of time-of-flight measurement for the TOPSiDE project. To achieve the required timing resolution of 10 ps, the LGAD will be completely monolithic structure, eliminating the parasitic elements from hybridization. The detector itself will be consist of the LGAD sensor, amplification and discrimination, and time-over-threshold logic components. At this stage, we are optimizing the LGAD sensor design and preparing a discrete component based readout circuitry. In this work, we will present simulation result of a conceptual LGAD silicon detector and constant-fraction discriminator (CFD) circuit implementation. The timing resolution of the conceptual detector was simulated with EDA tools such as Silvaco Atlas and LTSpice with conjunction of a Monte-Carlo simulator to resolve Landau distribution into the circuit readout simulation. The best timing resolution we achieved was 23 ps.
Physics - Accelerator Physics Physics - Instrumentation and Detectors

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