Performance of the AstroPix Prototype Module for the Barrel Imaging Calorimeter at the ePIC Detector and in Space-Based Payloads
Bobae Kim, Regina Caputo, Manoj Jadhav, Sylvester Joosten, Adrien Laviron, Richard Leys, Jessica Metcalfe, Nicolas Striebig, Daniel Violette, Maria \.Zurek

TL;DR
AstroPix is a high-voltage CMOS pixel sensor designed for space-based gamma-ray imaging and calorimetry, demonstrating scalable performance and integration in prototypes for future high-energy telescopes and collider detectors.
Contribution
This work presents the development and testing of AstroPix, a novel HV-CMOS sensor, for use in space-based payloads and the Barrel Imaging Calorimeter at the EIC, showing promising performance results.
Findings
Successful integration of AstroPix in various prototype configurations.
Demonstrated suitability for space-based gamma-ray detection.
Effective performance in calorimeter imaging layers.
Abstract
AstroPix is a high-voltage CMOS (HV-CMOS) monolithic active pixel sensor originally developed to enable precision gamma-ray imaging and spectroscopy in the medium-energy regime (approximately 100 keV-100 MeV) based on the groundwork laid by ATLASpix and MuPix. It features a 500 um pixel pitch, in-pixel amplification and digitization, and low power consumption (around 3-4 mW/cm^2), making it scalable for large-area, multilayer telescope detector planes. The detectors have a designed dynamic range of 25 keV to 700 keV. With these features, AstroPix meets the requirements of future space-based high-energy telescopes and the imaging layers of the Barrel Imaging Calorimeter (BIC) in the Electron-Proton/Ion Collider (ePIC) detector at the future Electron-Ion Collider (EIC). For the space-based payload, AstroPix is being integrated into sounding rocket and balloon payloads to demonstrate the…
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Taxonomy
TopicsParticle Detector Development and Performance · Radiation Detection and Scintillator Technologies · Superconducting and THz Device Technology
