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A prototype personal neutron dosemeter with one silicon diode.

M Luszik-Bhadra1

  • 1Physikalisch-Technische Bundesanstalt Bundesallee 100 38116 Braunschweig, Germany. marlies.luszik-bhadra@ptb.de

Radiation Protection Dosimetry
|October 6, 2001
PubMed
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This study evaluated a personal neutron dosemeter using a silicon diode. The device shows reliable performance across various neutron energies and directions, with a low detection threshold.

Area of Science:

  • Medical Physics
  • Radiation Detection and Measurement

Background:

  • Personal neutron dosimetry is crucial for radiation protection.
  • Existing silicon detector-based dosemeters have varying performance characteristics.

Purpose of the Study:

  • To assess the performance of a novel personal neutron dosemeter utilizing a single silicon diode.
  • To characterize its dosimetric behavior across a wide range of neutron energies and incidence angles.

Main Methods:

  • Utilized pulse height information from a single silicon diode.
  • Evaluated performance with neutrons from thermal to 100 MeV.
  • Tested response to varying directional distributions, from frontal to lateral incidence.

Main Results:

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  • The dosemeter demonstrated photon-insensitivity.
  • Achieved a dose detection threshold of approximately 20 microSv.
  • Performance was compared against commercial silicon detector-based dosemeters.

    • Conclusions:

    • The single silicon diode dosemeter offers a promising solution for personal neutron monitoring.
    • Its photon-insensitivity and low threshold are advantageous for radiation safety applications.