Observational Possibility of the Early GRBs using a Gaseous Electron Tracking Compton Camera in sub-MeV and MeV regions

Details Observational Possibility of the Early GRBs using a Gaseous Electron Tracking Compton Camera in sub-MeV and MeV regions Observational Possibility of the Early GRBs using a Gaseous Electron Tracking Compton Camera in sub-MeV and MeV regions

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1279..220t&link_type=abstract

DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS. AIP Conference Proceedings, Volume 1279, pp. 220-223 (2010).

Astronomy and Astrophysics

Astronomy

Gamma-Ray Sources (Astronomical), Galaxies, Cameras, Nuclear Resonance Reactions, Gamma-Ray Sources, Gamma-Ray Bursts, Active And Peculiar Galaxies And Related Systems, Photography, Photographic Instruments, Xerography, Resonance Reactions

Scientific paper

GRBs have been recently known as a unique probe to catch the highest z galaxies and stars. Here I propose the new trigger method to catch high-z GRBs with z>10 efficiently by imaging sub-MeV gamma rays from GRBs. We have developed the Electron Tracking Compton Camera (ETCC) with reconstructing tracks of the recoil electron in Compton process to explore the MeV gamma-ray astronomy. By measuring the track of a recoil electron, the direction of the incident gamma ray is determined for each photon, which enables us to reconstruct the direction of GRBs by detecting only several ten photons (>100 keV). Ability of the large ETCC (100 cm2 effective area) to detect GRBs with z~20 is revealed, based on the results of the balloon experiment and laboratory imaging test using the small ETCC.

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