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Equivalent noise charge for different impedance-matching schemes of the drift straw-tube and the amplifier

  • Methods of Physical Experiment
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Abstract

Impedance matching of the drift straw-tube and the amplifier influences the signal-to-noise ratio, which, in turn, determines the coordinate resolution of the detector, the minimal threshold, and the minimal gas amplification necessary for efficient signal registration by the detector. Five impedance-matching schemes for the straw-tube detector with a length of 2.5 m are studied. It is shown that ENC = 4000−5000 electrons for C det = 20−30 pF, which is good from the practical point of view, is achieved using the simple resistor connected in series to amplifier at the open far-end of the straw-tube.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, Russia

    N. A. Kuchinskii & S. A. Movchan

  2. Petersburg Nuclear Physics Institute of the Russian Academy of Sciences, Gatchina, Leningrad district, Russia

    A. P. Kashchuk & O. V. Levitskaya

Authors
  1. A. P. Kashchuk
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  2. N. A. Kuchinskii
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  3. O. V. Levitskaya
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  4. S. A. Movchan
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Additional information

Original Russian Text © A.P. Kashchuk, N.A. Kuchinskii, O.V. Levitskaya, S.A. Movchan, 2011, published in Pis’ma v Zhurnal Fizika Elementarnykh Chastits i Atomnogo Yadra, 2011, No. 1(164), pp. 68–77.

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Kashchuk, A.P., Kuchinskii, N.A., Levitskaya, O.V. et al. Equivalent noise charge for different impedance-matching schemes of the drift straw-tube and the amplifier. Phys. Part. Nuclei Lett. 8, 40–45 (2011). https://doi.org/10.1134/S1547477111010079

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  • DOI: https://doi.org/10.1134/S1547477111010079

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