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A method to optimize mass discrimination of particles identified in \(\Delta E\)–E silicon surface barrier detector systems

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Abstract

In several experiments, a system composed by two surface barrier detectors, one thin and one thicker, is used to identify the charge of a nucleus that is detected in this system. The nucleus loses part of its energy (\(\Delta E\)) in the thin detector and the remaining part (E) is left in the thick one. Since the energy loss depends on the charge, this process allows the identification of the nuclear charge. The energy loss also depends on the mass of the particle, but with a lower degree of sensitivity. Therefore, the identification of the nuclear mass is much more difficult. In this paper, we present a method to treat the data in order to optimize the mass discrimination of particles detected in \(\Delta E\)–E systems.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: The data set used in this work corresponds to the spectrum shown in the figures.]

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Acknowledgements

This work has been partially supported by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Proc. \({\mathrm{N}}{\mathrm{o}}\) 2018/09998-8, Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Proc. \({\mathrm{N}}{\mathrm{o}}\) 407096/2017-5, and it is a part of the project INCT-FNA Proc. \({\mathrm{N}}{\mathrm{o}}\) 464898/2014-5.

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Authors and Affiliations

  1. Instituto de Fisica, Universidade de Sao Paulo, Rua do Matao, 1371, Sao Paulo, SP, 05508-090, Brazil

    V. Scarduelli, L. R. Gasques, L. C. Chamon & A. Lépine-Szily

  2. Instituto de Física, Universidade Federal Fluminense, Niterói, RJ, 24210-340, Brazil

    V. Scarduelli

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  1. V. Scarduelli
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  2. L. R. Gasques
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  3. L. C. Chamon
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  4. A. Lépine-Szily
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Correspondence to V. Scarduelli.

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Communicated by Maria Jose Garcia Borge

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Scarduelli, V., Gasques, L.R., Chamon, L.C. et al. A method to optimize mass discrimination of particles identified in \(\Delta E\)–E silicon surface barrier detector systems. Eur. Phys. J. A 56, 24 (2020). https://doi.org/10.1140/epja/s10050-020-00021-2

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  • DOI: https://doi.org/10.1140/epja/s10050-020-00021-2

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