Gamma-Ray Burst Monitor for the CALET Mission (CGBM) onboard ISS 1: Scientific goal and expected background
Abstract
The CALET (Calorimetric Electron Telescope) is the second utilization mission of the exposed facility of Japanese Experimental Module "Kibo" on ISS the following the MAXI, which is now scheduled for launch in 2013. The scientific goal of this mission is to solve the origin of high energy electrons and to detect signals from dark matters. The primary instrument, calorimeter (CAL), is sensitive to high energy electrons and gamma-rays in the GeV-TeV range, and the gamma-ray burst monitor (CGBM) with a low energy coverage of 7 keV to 20 MeV are also attached to achieve a broadband observation of gamma-ray bursts and other transients. It consists of two types of detectors: three LaBr3 crystals in 7 keV to 1 MeV and one BGO- plastic phoswich scintillator in the range of 100 keV to 20 MeV. The LaBr3 has an excellent energy resolution, but it has not been operated in space yet. In this presentation, scientific goal, expected observational performance, and expected detector background including proton- induced radio-activated component of the CGBM will be described, and a possible collaboration with MAXI will be discussed.
- Publication:
-
The First Year of MAXI: Monitoring Variable X-ray Sources
- Pub Date:
- December 2010
- Bibcode:
- 2010fym..confP..66M