The MEGA project

Details The MEGA project The MEGA project

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004newar..48..275k&link_type=abstract

New Astronomy Reviews, Volume 48, Issue 1-4, p. 275-280.

Astronomy and Astrophysics

Astronomy

12

Γ-Ray Astronomy, Medium Energies, Mega

Scientific paper

We describe the development of a new telescope for Medium Energy Gamma-Ray Astronomy (MEGA) for the energy band 0.4-50 MeV. As a successor to COMPTEL and EGRET (low energies), MEGA aims to improve the sensitivity for astronomical sources by at least an order of magnitude. It could thus fill the severe sensitivity gap between scheduled or operating hard-X-ray and high-energy γ-ray missions and open the way for a future Advanced Compton Telescope. MEGA records and images γ-rays by completely tracking Compton and Pair creation events in a stack of double sided Si-strip track detectors surrounded by a pixelated CsI calorimeter. A scaled down prototype has been built and calibrations using radioactive sources and exposures to an accelerator generated γ-ray beam were performed in 2003. A balloon flight is planned for 2004.

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