Imaging principles and techniques in space-borne gamma-ray astronomy

Details Imaging principles and techniques in space-borne gamma-ray astronomy Imaging principles and techniques in space-borne gamma-ray astronomy

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004nimpa.525...98s&link_type=abstract

Nuclear Instruments and Methods in Physics Research Section A, Volume 525, Issue 1-2, p. 98-106.

Astronomy and Astrophysics

Astronomy

Gamma-Ray Astronomy, Gamma Rays, Gamma-Ray Telescopes, Gamma-Ray Bursts, Space Telescopes

Scientific paper

Gamma-ray astronomy in the photon energy band from several 100keV up to say 10GeV can only be performed from space. Tremendous progress has been made in this young research field during the last 40 years. All-Sky maps exist now in continuum and line emission and short gamma-ray bursts-lasting only seconds-can be located to better than 1arcmin. The imaging principles used in gamma-ray astronomy are different at low energies (<30MeV) and at high energies (>30MeV). Low-energy telescopes are based on the photo- or Compton-effect, whereas high-energy telescopes use the pair-production effect. The angular resolutions achieved by modern telescopes are in the range of 0.1 to 1°. A review of previous, current, and future telescopes is given for gamma-ray astronomy in general, and for burst astronomy in particular.

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