Abstract
We are developing the CALorimetric Electron Telescope, CALET, mission for the Japanese Experiment Module Exposed Facility, JEM-EF, of the International Space Station. Major scientific objectives are to search for the nearby cosmic ray sources and dark matter by carrying out a precise measurement of the electrons in 1 GeV - 20 TeV and gamma rays in 20 MeV - several 10 TeV. CALET has a unique capability to observe electrons and gamma rays over 1 TeV since the hadron rejection power can be larger than 105 and the energy resolution better than a few % over 100 GeV. The detector consists of an imaging calorimeter with scintillating fibers and tungsten plates and a total absorption calorimeter with BGO scintillators. CALET has also a capability to measure cosmic ray H, He and heavy ions up to 1000 TeV. It also will have a function to monitor solar activity and gamma ray transients. The phase A study has started on a schedule of launch in 2013 by H-II Transfer Vehicle (HTV) for a 5 year observation.
Original language | English |
---|---|
Pages (from-to) | 68-73 |
Number of pages | 6 |
Journal | Journal of the Physical Society of Japan |
Volume | 78 |
Issue number | SUPPL. A |
Publication status | Published - 2009 |
Keywords
- Calorimeter
- Cosmic ray
- Dark matter
- Electrons
- Gamma rays
- High energy
- ISS
- JEM
ASJC Scopus subject areas
- Physics and Astronomy(all)