A study of a time-of-flight system used as a directional counter in gamma-ray astronomy telescopes

Studying high-energy (>50GeV) cosmic gamma radiation raises a problem of selection of neutral gamma rays from a background of charged particles. The problem is embarrassed by the backsplash effect. The backsplash consists, in the main, of low-energy (1 MeV) secondary photons moving backwards and is produced by any high-energy gamma quantum. A charged-particle rejection method using the anticoincidence and time-of-flight systems is proposed. Charged-particle events are distinguished from those being triggered by high-energy gamma-rays producing backsplash. The method is based on the time separation of signals. It allows us to keep the gamma-ray detection efficiency high up to high energies.

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A study of a time-of-flight system used as a directional counter in gamma-ray astronomy telescopes

Cited by 5 publications

References 18 publications

Time-of-flight telescope for high-energy gamma-ray astronomy

Time-of-flight telescope for high-energy gamma-ray astronomy

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