5-10 October 2015
Milan Hotel 4*
Europe/Moscow timezone

Method to Select Gamma Rays with Energy above 50 GeV against a Charge-Particle Background in the GAMMA-400 Space Telescope

9 Oct 2015, 14:30
30m
Milan Hotel 4*

Milan Hotel 4*

Milan Hotel 4*, Shipilovskaya Street, 28A, Moscow, Russia, 115563
Cosmic rays Poster session IV

Speaker

Mr. Maxim Kheymits (NRNU MEPhI)

Description

Studying high-energy (> 50 GeV) 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 anticoïncidence 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.
Presentation type Poster

Primary authors

Dr. Alexey Leonov (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr. Maxim Kheymits (NRNU MEPhI)

Co-authors

Dr. Alexey Bakaldin (NRNU MEPhI) Mr. Andrey Arkhangelskiy (NRNU MEPhI) Prof. Arkady Galper (NRNU MEPhI) Mrs. Irina Arkhangelskaya (NRNU MEPhI) Dr. Mikhail Runtso (NRNU MEPhI) Dr. Nikolay Topchiev (Lebedev Physical Institute) Dr. Oleg Dalkarov (Lebedev Physical Institute) Dr. Peter Naumov (NRNU MEPhI) Dr. Sergey Suchkov (Lebedev Physical Institute) Dr. Valery Zverev (NRNU MEPhI) Dr. Vladimir Kadilin (NRNU MEPHI) Dr. Vladimir Kaplin (NRNU MEPhI) Dr. Yury Gusakov (Lebedev Physical Institute) Dr. Yury Yurkin (NRNU MEPhI)

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