Characterization of proton and neutron irradiated low resistivity p-on-n magnetic Czochralski ministrip sensors and diodes

Pacifico, Nicola;Dolenc Kittelmann, Irena;Fahrer, Manuel;Moll, Michael;Militaru, Otilia
(2011) Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment — Vol. 658, n° 1, p. 55-60 (2011)

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Authors
  • Pacifico, Nicola
    Author
  • Dolenc Kittelmann, Irena
    Author
  • Fahrer, Manuel
    Author
  • Moll, Michael
    Author
  • Militaru, OtiliaUCLouvain
    Author
Abstract
Transient Current Technique (TCT) and Charge Collection Efficiency (CCE) measurements were performed on low resistivity (280Ωcm) n-bulk, p-readout magnetic Czochralski ministrip sensors and diodes. The detectors were irradiated with neutrons and 24 GeV/c protons up to a total NIEL equivalent fluence of 8×10 <sup>15</sup>/ <sup>cm2</sup>. The study was addressed to assess the radiation tolerance of the detectors up to fluences expected in the next generations of High Energy Physics experiments. The charge collection efficiency after irradiation was found to be much higher than for standard FZ silicon p-in-n sensors. The underlying physics of this remarkable result was investigated by performing Edge-TCT measurements on one of the neutron irradiated ministrip sensors to extract detailed informations about the field and efficiency profiles of the detector. © 2011 Elsevier B.V.
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Pacifico, N., Dolenc Kittelmann, I., Fahrer, M., Moll, M., & Militaru, O. (2011). Characterization of proton and neutron irradiated low resistivity p-on-n magnetic Czochralski ministrip sensors and diodes. Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 658(1), 55-60. https://doi.org/10.1016/j.nima.2011.03.026 (Original work published 2011)