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A personal dosimeter prototype for static magnetic fields

F Cavagnetto1, P Prati, V Ariola

  • 1Servizio di Fisica Sanitaria-XIII USL-Ge 4-Viale Benedetto XV, Genova, Italy.

Health Physics
|August 1, 1993
PubMed
Summary
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A new personal dosimeter prototype uses Hall probes to reliably measure static magnetic fields over a full work shift. This instrument enables detailed personal exposure monitoring by recording operator movements within magnetic field fringes.

Area of Science:

  • Physics
  • Instrumentation
  • Occupational Health

Background:

  • Static magnetic fields are increasingly prevalent in various industries.
  • Accurate personal exposure monitoring is crucial for worker safety.
  • Existing methods for magnetic field measurement may lack long-term or dynamic tracking capabilities.

Purpose of the Study:

  • To design and build a prototype personal dosimeter for static magnetic fields.
  • To provide a reliable instrument for long-term magnetic field exposure analysis.
  • To enable detailed personal exposure monitoring.

Main Methods:

  • Development of a dosimeter prototype incorporating three Hall probes.
  • Filtering, sampling, and buffer memory storage of probe output signals proportional to magnetic flux density.

Related Experiment Videos

  • High data sampling rate to capture operator movements within magnetic field fringes.
  • Data transfer to a personal computer for registration on individual dosimetric cards.

    • Main Results:

    • A functional personal dosimeter prototype for static magnetic fields was successfully built.
    • The system effectively captures magnetic flux density components over a worker's shift.
    • Data acquisition allows for the recording of dynamic operator movements within magnetic field gradients.
    • The dosimeter provides data suitable for individual exposure assessment.

    Conclusions:

    • The developed prototype offers a reliable tool for long-term personal exposure monitoring of static magnetic fields.
    • The system's capability to record dynamic movements enhances exposure assessment accuracy.
    • This dosimeter can contribute to improved occupational safety in environments with static magnetic fields.