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The electronic neutron/photon dosemeter PTB DOS-2002.

M Luszik-Bhadra1, W Wendt, M Weierganz

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

Radiation Protection Dosimetry
|September 9, 2004
PubMed
Summary

PTB developed the electronic dosemeter DOS-2002, a simple device with a silicon detector. It accurately measures photon and neutron personal dose equivalents with low thresholds and operates across a wide temperature range.

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Area of Science:

  • Metrology
  • Radiation Detection and Measurement

Background:

  • The Physikalisch-Technische Bundesanstalt (PTB) has developed a new electronic dosemeter, the DOS-2002.
  • This device is designed for personal dose equivalent monitoring of photons and neutrons.

Purpose of the Study:

  • To characterize the dosimetric performance of the electronic dosemeter DOS-2002.
  • To evaluate its suitability for radiation protection applications.

Main Methods:

  • The dosemeter's characteristics were determined using a single silicon detector.
  • Measurements were conducted in well-defined neutron fields (thermal to 15 MeV) and photon fields (65 keV to 7 MeV).

Main Results:

  • The DOS-2002 exhibits a low detection threshold for photon personal dose equivalent (0.016 µSv) and neutron personal dose equivalent (10 µSv).

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  • Its dosimetric properties were validated across a broad energy spectrum for both radiation types.
  • The dosemeter functions reliably within a wide temperature range (-20°C to +50°C) and shows minimal electromagnetic interference, though it is sensitive to shock.

    • Conclusions:

    • The electronic dosemeter DOS-2002 is a promising device for personal dosimetry due to its simple design, low detection thresholds, and broad operational range.
    • Its performance characteristics make it suitable for various radiation monitoring applications.