The GammaTPC Gamma-Ray Telescope Concept

2025/02/20 by Tom Shutt, Bahrudin Trbalic, Shutt, Tom +19 · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Particle Detector Development and Performance #Radiation Detection and Scintillator Technologies

paper · pdf · doi:10.48550/arxiv.2502.14841

openalex publication_date 2025/02/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present GammaTPC, a transformative 0.1-10 MeV γ-ray instrument concept featuring a tracker using a liquid argon time projection chamber (LAr TPC) technology with the novel GAMPix high spatial resolution and ultra low power charge readout. These enable an economical instrument with unprecedented effective area and sensitivity. We discuss the design and technology in some detail, including how a LAr TPC can be staged in space. Finally, we present a first study of the sensitivity of the instrument in the Compton regime using a new framework for analyzing Compton telescope data.

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