CALET for high energy electron and gamma-ray measurements on ISS

Shoji Torii

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The CALorimetric Electron Telescope, CALET, mission is proposed for the Japanese Experiment Module Exposed Facility, JEM-EF, of the International Space Station. The mission goal is to reveal the high-energy phenomena in the universe by carrying out a precise mesurement of the electrons in the range 1 GeV-10 TeV and the gamma-rays in the range 20 MeVto several TeV. The detector will be composed of an imaging calorimeter of scintillating fibers (IMC) and a total absorption calorimeter of BGO (TASC). The total absorber thickness is 36 r.l for electromagnetic particles and 1.8 m.f.p for protons. The total pay-load weight is nearly 2.5 t and the effective geometrical factor for the electrons ∼1.0 m2sr. The CALET has a unique capability to measure the electrons and gamma-rays above 1 TeV since the hadron rejection power can be 106 and the energy resolution for electromagnetic particles is better than a few % above 100 GeV. Therefore, it is promising to detect any change of the energy spectra and a line signature in the energy distribution, as expected from the dark matter.

Original languageEnglish
Pages (from-to)345-348
Number of pages4
JournalNuclear Physics B - Proceedings Supplements
Volume150
Issue number1-3
DOIs
Publication statusPublished - 2006 Jan
Externally publishedYes

Fingerprint

International Space Station
high energy electrons
gamma rays
calorimeters
particle telescopes
electromagnetism
scintillating fibers
electrons
rejection
dark matter
absorbers
energy distribution
energy spectra
universe
modules
signatures
protons
energy
detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

CALET for high energy electron and gamma-ray measurements on ISS. / Torii, Shoji.

In: Nuclear Physics B - Proceedings Supplements, Vol. 150, No. 1-3, 01.2006, p. 345-348.

Research output: Contribution to journalArticle

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