Development of the ComPair gamma-ray telescope prototype

Daniel Shy; Carolyn Kierans; Nicolas Cannady; Regina Caputo; Sean Griffin; J. Eric Grove; Elizabeth Hays; Emily Kong; Nicholas Kirschner; Iker Liceaga-Indart; Julie McEnery; John Mitchell; A. A. Moiseev; Lucas Parker; Jeremy S. Perkins; Bernard Phlips; Makoto Sasaki; Adam J. Schoenwald; Clio Sleator; Jacob Smith; Lucas D. Smith; Sambid Wasti; Richard Woolf; Eric Wulf; Anna Zajczyk

doi:10.1117/12.2628811

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arXiv · 2210.02962

Development of the ComPair gamma-ray telescope prototype

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Abstract

There is a growing interest in the science uniquely enabled by observations in the MeV range, particularly in light of multi-messenger astrophysics. The Compton Pair (ComPair) telescope, a prototype of the AMEGO Probe-class concept, consists of four subsystems that together detect and characterize gamma rays in the MeV regime. A double-sided strip silicon Tracker gives a precise measure of the first Compton scatter interaction and tracks pair-conversion products. A novel cadmium zinc telluride (CZT) detector with excellent position and energy resolution beneath the Tracker detects the Compton-scattered photons. A thick cesium iodide (CsI) calorimeter contains the high-energy Compton and pair events. The instrument is surrounded by a plastic anti-coincidence (ACD) detector to veto the cosmic-ray background. In this work, we will give an overview of the science motivation and a description of the prototype development and performance.

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Daniel Shy, Carolyn Kierans, Nicolas Cannady, Regina Caputo, Sean Griffin, J. Eric Grove, Elizabeth Hays, Emily Kong, Nicholas Kirschner, Iker Liceaga-Indart, Julie McEnery, John Mitchell, A. A. Moiseev, Lucas Parker, Jeremy S. Perkins, Bernard Phlips, Makoto Sasaki, Adam J. Schoenwald, Clio Sleator, Jacob Smith, Lucas D. Smith, Sambid Wasti, Richard Woolf, Eric Wulf, Anna Zajczyk. 2022-10-06. Development of the ComPair gamma-ray telescope prototype. https://doi.org/10.1117/12.2628811

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