Author:
Kheymits M D,Leonov A A,Galper A M,Kadilin V,Arkhangelskaya I V,Arkhangelskiy A I,Gusakov Yu V,Zverev V G,Kaplin V,Naumov P Yu,Runtso M F,Suchkov S I,Topchiev N P,Yurkin Yu T,Bakaldin A,Dalkarov O
Abstract
Abstract
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.
Subject
General Physics and Astronomy