Prototype TIGRE Compton γ-ray balloon-borne telescope

Details Prototype TIGRE Compton γ-ray balloon-borne telescope Prototype TIGRE Compton γ-ray balloon-borne telescope

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004newar..48..287b&link_type=abstract

New Astronomy Reviews, Volume 48, Issue 1-4, p. 287-292.

Astronomy and Astrophysics

Astronomy

4

Γ-Ray Astronomy, Compton Telescope, Electron Tracking

Scientific paper

A prototype balloon-borne telescope is being constructed for γ-ray observations in the MeV energy range. The Tracking and Imaging Gamma-Ray Experiment (TIGRE) uses multi-layers of thin silicon detectors to track and measure the energy losses of Compton recoil electrons. When combined with the direction and energy of the Compton scattered γ-ray a unique incident direction for each photon event is determined. This facilitates background rejection, improved sensitivity and image reconstruction. The converter/tracker also serves as an electron-positron pair detector for γ-rays up to 100 MeV. The initial continental US flight will be used to determine the sub-orbital atmospheric backgrounds and search for polarized γ-emission for the Crab pulsar. Longer southern hemisphere flights with an enhanced instrument will map out the 26Al emissions from the galactic center region.

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