AbstractThe CALorimetric Electron Telescope, CALET, mission is proposed for the observation of high-energy electrons and gamma-rays at the Exposed Facility of the Japanese Experiment Module on the International Space Station. The CALET has a capability to observe the electrons (without separation between e+ and e−) in 1GeV–10TeV and the gamma-rays in 20MeV–several TeV with a high-energy resolution of 2% at 100GeV, a good angular resolution of 0.06 degree at 100GeV, and a high proton-rejection power of nearly 106. The CALET has a geometrical factor of ∼1m2sr, and the observation period is expected for more than three years. The very precise measurement of electrons enables us to detect a distinctive feature in the energy spectrum caused from WIMP dark matter in the Galactic halo. The excellent energy resolution of CALET, which is much better than GLAST or air Cherenkov telescopes over 10GeV, enables us to detect gamma-ray lines in the sub-TeV region from WIMP dark matter annihilations. The CALET has, therefore, a unique capability to search for WIMP dark matter by the hybrid observations of electrons and gamma-rays.
Dark matter search with the CALET detector on-board ISS
Advances in Space Research ; 41 , 12 ; 2032-2036
2008-02-01
5 pages
Article (Journal)
Electronic Resource
English
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