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Method for reconstructing the gamma-ray arrival direction in the converter + calorimeter system

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Abstract

When designing devices of modern gamma astronomy, one of the most important problems is achieving the maximum possible angular resolution. This study is devoted to the method for reconstructing the arrival direction of primary gamma-rays with energies E γ > 10 GeV in the GAMMA-400 satellite experiment. By the example of the GAMMA-400 gamma telescope, the possibility of improving the angular resolution of gamma telescopes incorporating a “converter + calorimeter” system is shown. The dependence of the angular resolution on the step of silicon strips used to determine the coordinates of incident particles in the converter and calorimeter and the distance between the converter and calorimeter is analyzed.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    A. M. Galper, C. I. Suchkov, N. P. Topchiev & M. I. Fradkin

  2. National Research Nuclear University “MEPhI”, Kashirskoe sh. 31, Moscow, 115409, Russia

    A. M. Galper, S. V. Borisov, V. G. Zverev, M. O. Farber & Yu. T. Yurkin

Authors
  1. A. M. Galper
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  2. S. V. Borisov
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  3. V. G. Zverev
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  4. C. I. Suchkov
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  5. N. P. Topchiev
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  6. M. O. Farber
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  7. M. I. Fradkin
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  8. Yu. T. Yurkin
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Corresponding author

Correspondence to N. P. Topchiev.

Additional information

Original Russian Text © A.M. Galper, S.V. Borisov, V.G. Zverev, C.I. Suchkov, N.P. Topchiev, M.O. Farber, M.I. Fradkin, Yu.T. Yurkin, 2011, published in Kratkie Soobshcheniya po Fizike, 2011, Vol. 38, No. 7, pp. 14–23.

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Galper, A.M., Borisov, S.V., Zverev, V.G. et al. Method for reconstructing the gamma-ray arrival direction in the converter + calorimeter system. Bull. Lebedev Phys. Inst. 38, 191–197 (2011). https://doi.org/10.3103/S1068335611070025

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  • DOI: https://doi.org/10.3103/S1068335611070025

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