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Intrinsic Resolution of STJ Detectors due to Competition Between Electron and Hole Channels in Quasiparticle Multitunneling

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Abstract

The effect of competition between electron and hole channels of tunneling on the intrinsic resolution of STJ-detectors is considered. The formulae for the mean value, the variance and the relative variance of the detector signal for general case Δ1≠Δ2 are given. For a symmetric junction the tunneling rates, the mean value of the transferred charge and the noise G-factor were calculated as a function of the junction bias voltage. The results demonstrate the importance of these effects at low bias voltages.

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Acknowledgements

This work of one of us (V.A.A.) was supported by the contract (No. 02.740.11.0242) of the Ministry of Education and Science of Russia.

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Authors and Affiliations

  1. Moscow Engineering Physics Institute, National Research Nuclear University, 115409, Moscow, Russian Federation

    V. V. Samedov

  2. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991, Moscow, Russian Federation

    V. A. Andrianov

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  1. V. V. Samedov
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  2. V. A. Andrianov
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Correspondence to V. A. Andrianov.

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Samedov, V.V., Andrianov, V.A. Intrinsic Resolution of STJ Detectors due to Competition Between Electron and Hole Channels in Quasiparticle Multitunneling. J Low Temp Phys 167, 398–403 (2012). https://doi.org/10.1007/s10909-012-0533-7

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  • DOI: https://doi.org/10.1007/s10909-012-0533-7

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