PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Gamma-Ray Astronomy. GA-instrumentation
The Compton Spectrometer and Imager (COSI)
J.L. Chiu*, S. E. Boggs, C. A. Kierans, A. Lowell, C. Sleator, J. A. Tomsick, A. Zoglauer, M. Amman, H.K. Chang, C.Y. Chu, C.H. Tseng, C.Y. Yang, C.h. Lin, P. Jean and P. von Ballmoos
Full text: pdf
Pre-published on: August 16, 2017
Published on: August 03, 2018
The Compton Spectrometer and Imager (COSI) is a balloon-borne, soft gamma-ray (0.2-5 MeV) telescope designed to study astrophysical sources of nuclear-line emission and gamma-ray polarization. The heart of COSI is a compact array of cross-strip germanium detectors (GeDs), providing excellent spectral resolution (0.3% at 662 keV) and the capability of tracking the photon scattering history with full 3D position resolution of less than 2 $mm^{3}$ for each interaction. With good efficiency, wide-field imaging, and polarization sensitivity, COSI is a powerful observatory in the medium gamma-ray regime. The most recent balloon flight of COSI was launched from Wanaka, New Zealand, in May 2016 on a Super Pressure Balloon floating for 46 days. During this flight, COSI discovered GRB 160530A and detected several sources, including the Crab, Cen A, Cyg X-1, and the 511-keV emission from the galactic center. Here we will present the characteristics and capabilities of this novel instrument and preliminary results from the 2016 flight.
DOI: https://doi.org/10.22323/1.301.0796
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.