Detector Simulation Studies for the Proposed Gamma Ray and AntiMatter Survey (GRAMS)

GRAMS Collaboration

Research output: Contribution to journalConference articlepeer-review

Abstract

GRAMS is a proposed balloon and satellite-borne gamma ray and antimatter detector aimed at exploring the MeV energy bandgap as well as indirectly detecting dark matter. This study addresses the MeV detection capabilities of GRAMS via truth-level GEANT4 simulations, as a function of detector geometry and response. In particular, we examine Compton scattering as the vehicle for point source detection. As a first study, we applied the simple backprojection algorithm of Compton cameras to accurately reconstruct point source location and energy and examined the all-sky angular resolution of GRAMS, using truth-level detector information. We also calculated the point source sensitivity against a power-law isotropic background spectrum as observed by COMPTEL.

Original languageEnglish
Article number795
JournalProceedings of Science
Volume444
StatePublished - Sep 27 2024
Event38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan
Duration: Jul 26 2023Aug 3 2023

Funding

This work was supported by Tsuguo Aramaki\u2019s start-up funds from Northeastern University as well as JSPS KAKENHI grant numbers 20K22355, 20H0053, 22H01252 and 23H01211. We also acknowledge support from Barnard College and Columbia University. Mihir Shetty was supported in part by NSF under Grant No. PHY/1950431.

Fingerprint

Dive into the research topics of 'Detector Simulation Studies for the Proposed Gamma Ray and AntiMatter Survey (GRAMS)'. Together they form a unique fingerprint.

Cite this