Characteristics and Performance of the CALorimetric Electron Telescope (CALET) Calorimeter for Gamma-Ray Observations
Authors:
- N. CannadyNCN. Cannady
- Y. AsaokaYAY. Asaoka
- F. SatohFSF. Satoh
- M. TanakaMTM. Tanaka
- S. ToriiSTS. Torii
- M. L. CherryMCM. L. Cherry
- M. MoriMMM. Mori
- O. AdrianiOAO. Adriani
- Y. AkaikeYAY. Akaike
- K. AsanoKAK. Asano
- M. G. BagliesiMBM. G. Bagliesi
- E. BertiEBE. Berti
- 1 September 2018
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal Supplement Series
- Vol. 238 (1)
Abstract
The CALorimetric Electron Telescope primary detector (CALET-CAL) is a 30 radiation-length-deep hybrid calorimeter designed for the accurate measurement of high-energy cosmic rays. It is capable of triggering on and giving near complete containment of electromagnetic showers from primary electrons and gamma rays from 1 GeV to over 10 TeV. The first 24 months of on-orbit scientific data (2015 November 01–2017 October 31) provide valuable characterization of the performance of the calorimeter based on analyses of the gamma-ray data set in general and bright point sources in particular. We describe the gamma-ray analysis, the expected performance of the calorimeter based on Monte Carlo simulations, the agreement of the flight data with the simulated results, and the outlook for long-term gamma-ray observations with the CAL.Keywords
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