Email this article Gammas and Charged Particles Identification in Lateral and Additional Apertures of GAMMA-400
- Authors: Pappe N.Y.1, Runtso M.F.2, Stozhkov Y.I.1, Suchkov S.I.1, Topchiev N.P.1, Yurkin Y.T.2, Arkhangelskaja I.V.2, Arkhangelskiy A.I.2,1, Galper A.M.2,1, Bakaldin A.V.3, Chernysheva I.V.2, Chasovikov E.N.2, Dalkarov O.D.1, Egorov A.E.1, Gusakov Y.V.1, Kheymits M.D.2, Leonov A.A.2,1
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Affiliations:
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
- Scientific Research Institute of System Analysis of the Russian Academy of Sciences
- Issue: Vol 82, No 6 (2019)
- Pages: 845-854
- Section: Elementary Particles and Fields
- URL: https://journals.rcsi.science/1063-7788/article/view/195158
- DOI: https://doi.org/10.1134/S1063778819660049
- ID: 195158
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Abstract
The GAMMA-400 (Gamma Astronomical Multifunctional Modular Apparatus) will be a new generation satellite gamma-observatory. The gamma-ray telescope GAMMA-400 consists of the anticoincidence system (top and lateral sections—ACtop and AClat), the converter-tracker (C), the time-of-flight system TOF (two sections S1 and S2), the position-sensitive and electromagnetic calorimeters (CC1 and CC2), the scintillation detectors of the calorimeter (S3 and S4) and lateral anticoincidence detectors of the calorimeter LD. Two apertures used for observation of transient events do not require the best angular resolution as for the gamma-ray bursts and solar flares from both upper and lateral directions. Additional aperture allows the particle registering from upper direction, which do not interact with converter-tracker and do not form a TOF signal. The lateral aperture allows registering of γ-quanta in perpendicular direction with respect to main axis of GAMMA-400 due to CC2, LD, S3, and S4. The thickness of CC2 in this direction is ∼44 X0 and this allows detection of gammas, electrons and positrons with energies up to 10 TeV. The results of calculation of the fractal dimension of temporal profiles of additional aperture prototype of GAMMA-400 during its calibration using secondary positron beam of the synchrotron C-25P “PAKHRA” of Lebedev Physical Institute confirm the absence of any correlation between the AC and CC1 characteristics and correspondence of additional aperture background to Poisson statistics or Erlang one with shape parameter up to 10.
About the authors
N. Yu. Pappe
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow
M. F. Runtso
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: irene.belousova@usa.net
Russian Federation, Moscow
Yu. I. Stozhkov
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow
S. I. Suchkov
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow
N. P. Topchiev
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow
Yu. T. Yurkin
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: irene.belousova@usa.net
Russian Federation, Moscow
I. V. Arkhangelskaja
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Author for correspondence.
Email: irene.belousova@usa.net
Russian Federation, Moscow
A. I. Arkhangelskiy
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow; Moscow
A. M. Galper
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow; Moscow
A. V. Bakaldin
Scientific Research Institute of System Analysis of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow
I. V. Chernysheva
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: irene.belousova@usa.net
Russian Federation, Moscow
E. N. Chasovikov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: irene.belousova@usa.net
Russian Federation, Moscow
O. D. Dalkarov
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow
A. E. Egorov
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow
Yu. V. Gusakov
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow
M. D. Kheymits
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: irene.belousova@usa.net
Russian Federation, Moscow
A. A. Leonov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: irene.belousova@usa.net
Russian Federation, Moscow; Moscow
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