A gamma-ray imaging telescope based on liquid xenon

Details A gamma-ray imaging telescope based on liquid xenon A gamma-ray imaging telescope based on liquid xenon

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aipc..211..189a&link_type=abstract

IN: High-energy astrophysics in the 21st century; Proceedings of the Workshop, Taos, NM, Dec. 11-14, 1989 (A91-47977 20-90). New

Astronomy and Astrophysics

Astrophysics

Gamma Ray Telescopes, X Ray Imagery, Xenon, Astrophysics, Imaging Techniques, Liquefied Gases

Scientific paper

A liquid-xenon time projection chamber (TPC) is discussed in terms of its utility as an imaging telescope for high energy astrophysics. The concept exploits the efficiency of xenon as an ionization and scintillation medium for imaging astrophysical gamma-ray sources. The design fundamentally follows the approach of an ionization calorimeter functioning as a TPC dedicated to 3D tracking. A schematic diagram of the instrument is presented, and the device measures the ionization signals - resulting from gamma-ray interactions with xenon - on collection electrodes. The liquid xenon instrument permits the identification of the direction of the Compton electron and thereby determines the location of the source. The energy region of 1-30 MeV is covered by the instrument, and source localization is possible for the entire range.

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