Calibration of the ComPair Balloon Instrument
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arXiv
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| Natura: | Preprint |
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2025
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| author | Kirschner, Nicholas Metzler, Zachary Smith, Lucas D. Kierans, Carolyn Caputo, Regina Cannady, Nicholas Sasaki, Makoto Shy, Daniel Ghosh, Priyarshini Griffin, Sean Grove, J. Eric Hays, Elizabeth Liceaga-Indart, Iker Kong, Emily McEnery, Julie Mitchell, John Moiseev, A. A. Parker, Lucas Perkins, Jeremy S. Phlips, Bernard Schoenwald, Adam J. Sleator, Clio Smith, Jacob Valverde, Janeth Wasti, Sambid Woolf, Richard Wulf, Eric Zajczyk, Anna |
| author_facet | Kirschner, Nicholas Metzler, Zachary Smith, Lucas D. Kierans, Carolyn Caputo, Regina Cannady, Nicholas Sasaki, Makoto Shy, Daniel Ghosh, Priyarshini Griffin, Sean Grove, J. Eric Hays, Elizabeth Liceaga-Indart, Iker Kong, Emily McEnery, Julie Mitchell, John Moiseev, A. A. Parker, Lucas Perkins, Jeremy S. Phlips, Bernard Schoenwald, Adam J. Sleator, Clio Smith, Jacob Valverde, Janeth Wasti, Sambid Woolf, Richard Wulf, Eric Zajczyk, Anna |
| contents | ComPair, the prototype of the All-sky Medium Energy Gamma-ray Observatory (AMEGO) mission concept, is a combined Compton imager and pair production telescope. It consists of four subsystems: a double-sided silicon strip detector (DSSD) Tracker, a virtual Frisch-grid cadmium zinc telluride (CZT) Low Energy Calorimeter, a cesium iodide (CsI) High Energy Calorimeter, and a plastic scintillator Anti-Coincidence Detector (ACD) to reject the charged particle background. These subsystems work together to reconstruct events, by tracking the locations and energies of gamma-ray scatters and pair production events. To quantify ComPair's scientific capabilities prior to a balloon launch in 2023, calibrations were performed to benchmark the instrument's performance in terms of angular resolution, energy resolution, and effective area. In this paper we provide an overview of the ComPair instrument and detail the calibration campaign. Finally, we compare our results to the expected performance based on simulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_12938 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Calibration of the ComPair Balloon Instrument Kirschner, Nicholas Metzler, Zachary Smith, Lucas D. Kierans, Carolyn Caputo, Regina Cannady, Nicholas Sasaki, Makoto Shy, Daniel Ghosh, Priyarshini Griffin, Sean Grove, J. Eric Hays, Elizabeth Liceaga-Indart, Iker Kong, Emily McEnery, Julie Mitchell, John Moiseev, A. A. Parker, Lucas Perkins, Jeremy S. Phlips, Bernard Schoenwald, Adam J. Sleator, Clio Smith, Jacob Valverde, Janeth Wasti, Sambid Woolf, Richard Wulf, Eric Zajczyk, Anna Instrumentation and Methods for Astrophysics ComPair, the prototype of the All-sky Medium Energy Gamma-ray Observatory (AMEGO) mission concept, is a combined Compton imager and pair production telescope. It consists of four subsystems: a double-sided silicon strip detector (DSSD) Tracker, a virtual Frisch-grid cadmium zinc telluride (CZT) Low Energy Calorimeter, a cesium iodide (CsI) High Energy Calorimeter, and a plastic scintillator Anti-Coincidence Detector (ACD) to reject the charged particle background. These subsystems work together to reconstruct events, by tracking the locations and energies of gamma-ray scatters and pair production events. To quantify ComPair's scientific capabilities prior to a balloon launch in 2023, calibrations were performed to benchmark the instrument's performance in terms of angular resolution, energy resolution, and effective area. In this paper we provide an overview of the ComPair instrument and detail the calibration campaign. Finally, we compare our results to the expected performance based on simulations. |
| title | Calibration of the ComPair Balloon Instrument |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2510.12938 |