CALET Gamma-ray Burst Monitor (CGBM)
Abstract
The CALET Gamma-ray Burst Monitor (CGBM) is the secondary scientific instrument of the CALET mission on the International Space Station (ISS), which is scheduled for launch by H-IIB/HTV in 2014. The CGBM provides a broadband energy coverage from 7 keV to 20 MeV, and simultaneous observations with the primary instrument Calorimeter (CAL) in the GeV - TeV gamma-ray range and Advanced Star Camera (ASC) in the optical for gamma-ray bursts (GRBs) and other X-gamma-ray transients. The CGBM consists of two kinds of scintillators: two LaBr3(Ce) (7 keV - 1 MeV) and one BGO (100 keV - 20 MeV) each read by a single photomultiplier. The LaBr3(Ce) crystal, used in space for the first time here for celestial gamma-ray observations, enables GRB observations over a broad energy range from low energy X-ray emissions to gamma rays. The detector performance and structures have been verified using the bread-board model (BBM) via vibration and thermal vacuum tests. The CGBM is currently in the development phase of the proto-flight model (PFM) and the pre-flight calibration of the CGBM is planned for August 2013. In this presentation, we report on the current status and expected performance of CGBM for GRB observations.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- 2013
- DOI:
- 10.48550/arXiv.1311.4084
- arXiv:
- arXiv:1311.4084
- Bibcode:
- 2013ICRC...33.2948Y
- Keywords:
-
- Gamma-ray Burst;
- CALET;
- ISS;
- Instrumentation;
- Astrophysics - Instrumentation and Methods for Astrophysics
- E-Print:
- 9 pages, 6 figures, 7th Huntsville Gamma-Ray Burst Symposium, GRB 2013: paper 41 in eConf Proceedings C1304143