Development of the ComPair gamma-ray telescope prototype

分类： 天文学 >> 天文学 提交时间： 2023-02-19

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

摘要： 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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