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A fast electronic system of the T0 start trigger detector for the ALICE experiment

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Abstract

A fast electronic system of the T0 start trigger detector for the ALICE experiment has been developed, assembled, and adjusted using a pulsed laser. The system is composed of 24 independent detection channels for secondary particles (this number corresponds to the number of individual Cherenkov counters in the detector); common modules, which generate the signal of the event detection time with an error of <50 ps, the trigger of the interaction vertex position with an error of ∼2 cm, and triggers of two independent levels of the event multiplicity in the range of 1–150 minimum ionizing particles (MIP); and several auxiliary modules. A total of 109 channels are used in the time-to-digital converters to record time, amplitude, and auxiliary data. The time resolution of the detector for single MIP is 38 ps.

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References

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Authors and Affiliations

  1. Institute for Nuclear Research, Russian Academy of Sciences, pr. Shestidesyatiletiya Oktyabrya 7a, Moscow, 117312, Russia

    A. V. Veselovskii, T. L. Karavicheva, O. V. Karavichev, A. B. Kurepin, A. N. Kurepin, A. I. Maevskaya, V. I. Marin & A. I. Reshetin

  2. Moscow Engineering Physics Institute (State University), Kashirskoe sh. 31, Moscow, 115409, Russia

    V. A. Grigor’ev, V. A. Kaplin, N. V. Kondrat’eva & V. A. Loginov

  3. Russian Research Centre Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182, Russia

    A. I. Klimov & E. A. Meleshko

  4. Jyuvaskula University, P.O. Box 35, FIN-40014, Jyuvaskula, Finland

    W. H. Trzaska

Authors
  1. A. V. Veselovskii
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  2. V. A. Grigor’ev
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  3. V. A. Kaplin
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  4. T. L. Karavicheva
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  5. O. V. Karavichev
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  6. A. I. Klimov
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  7. N. V. Kondrat’eva
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  8. A. B. Kurepin
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  9. A. N. Kurepin
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  10. V. A. Loginov
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  11. A. I. Maevskaya
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  12. V. I. Marin
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  13. E. A. Meleshko
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  14. A. I. Reshetin
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  15. W. H. Trzaska
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Additional information

Original Russian Text © A.V. Veselovskii, V.A. Grigor’ev, V.A. Kaplin, T.L. Karavicheva, O.V. Karavichev, A.I. Klimov, N.V. Kondrat’eva, A.B. Kurepin, A.N. Kurepin, V.A. Loginov, A.I. Maevskaya, V.I. Marin, E.A. Meleshko, A.I. Reshetin, W.H. Trzaska, 2009, published in Pribory i Tekhnika Eksperimenta, 2009, No. 2, pp. 43–47.

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Veselovskii, A.V., Grigor’ev, V.A., Kaplin, V.A. et al. A fast electronic system of the T0 start trigger detector for the ALICE experiment. Instrum Exp Tech 52, 191–195 (2009). https://doi.org/10.1134/S0020441209020080

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  • DOI: https://doi.org/10.1134/S0020441209020080

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