Infrared luminescence for real time ionizing radiation detection

  • Ivan Veronese
    Università degli Studi di Milano 1 Dipartimento di Fisica, , Via Celoria 16, 20133 Milano, Italy
  • Cristina De Mattia
    Università degli Studi di Milano 1 Dipartimento di Fisica, , Via Celoria 16, 20133 Milano, Italy
  • Mauro Fasoli
    Università degli Studi di Milano-Bicocca 2 Dipartimento di Scienza dei Materiali, , Via Cozzi 55, 20125 Milano, Italy
  • Norberto Chiodini
    Università degli Studi di Milano-Bicocca 2 Dipartimento di Scienza dei Materiali, , Via Cozzi 55, 20125 Milano, Italy
  • Eleonora Mones
    Azienda Ospedaliera Maggiore della Carità 3 Medical Physics Department, , Corso Mazzini 18, 28100 Novara, Italy
  • Marie Claire Cantone
    Università degli Studi di Milano 1 Dipartimento di Fisica, , Via Celoria 16, 20133 Milano, Italy
  • Anna Vedda
    Università degli Studi di Milano-Bicocca 2 Dipartimento di Scienza dei Materiali, , Via Cozzi 55, 20125 Milano, Italy

書誌事項

公開日
2014-08-11
DOI
  • 10.1063/1.4892880
公開者
AIP Publishing

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説明

<jats:p>Radio-luminescence (RL) optical fiber sensors enable a remote, punctual, and real time detection of ionizing radiation. However, the employment of such systems for monitoring extended radiation fields with energies above the Cerenkov threshold is still challenging, since a spurious luminescence, namely, the “stem effect,” is also generated in the passive fiber portion exposed to radiation. Here, we present experimental measurements on Yb-doped silica optical fibers irradiated with photon fields of different energies and sizes. The results demonstrate that the RL of Yb3+, displaying a sharp emission line at about 975 nm, is free from any spectral superposition with the spurious luminescence. This aspect, in addition with the suitable linearity, reproducibility, and sensitivity properties of the Yb-doped fibers, paves the way to their use in applications where an efficient stem effect removal is required.</jats:p>

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