Computer Science – Performance
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.2608t&link_type=abstract
American Astronomical Society, HEAD meeting #11, #26.08; Bulletin of the American Astronomical Society, Vol. 41, p.698
Computer Science
Performance
Scientific paper
The cosmic ray electron observation above 1 TeV is now understood to be very important for resolving the nearby sources and the dark matter. However, the observation is very difficult due to the lower flux and the higher background protons. The CALET, CALorimetric Electron Telescope, mission is proposed as an international collaboration for observing the electrons above 1 TeV as well as gamma-rays, and the nucleus components up to 1000 TeV. CALET has a unique capability to observe electrons and gamma-rays in the trans-TeV region since the hadron rejection power is larger than 105 and the energy resolution better than 3% over 100 GeV. The detector consists of an imaging calorimeter of scintillating fibers and tungsten plates and a total absorption calorimeter of PWO scintillators. The geometrical factor is 1200 cm2 sr over 10 GeV, and the total thickness of absorber is nearly 30 radiation length. CALET will be launched by H-IIB Transfer Vehicle, HTV, in the middle of 2013, and will carry out the observations for 5-years at the Japanese Experiment Module, Exposed Facility, JEM-EF, of the International Space Station.
It will also be presented about the other future missions, AMS-02 and CREST, in comparison with CALET, on the specific performance of detectors. Finally, the future prospects will be summarized for the electron observation, and the new discoveries expected in the frontier over 1 TeV will be discussed.
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