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Development of ring radiation dosemeters using 3D printing.

Gabriela T P Melo1, Wlademir C Vasconcelos Filho2, Helen J Khoury1

  • 1Federal University of Pernambuco, Recife, Brazil.

Radiation Protection Dosimetry
|October 11, 2023
PubMed
Summary

This study demonstrates 3D printing for custom extremity radiation monitoring rings. The new ring dosemeters offer improved accuracy and ergonomics for occupational radiation exposure assessment.

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Area of Science:

  • Medical Physics
  • Radiation Protection
  • Materials Science

Background:

  • Extremity radiation monitoring is crucial for assessing occupational radiation exposure in various workplaces.
  • Current methods using thermoluminescent detectors (TLDs) have limitations in accuracy and ergonomics.
  • There is a need for improved, customizable, and user-friendly extremity dosemeters.

Purpose of the Study:

  • To investigate the feasibility of using 3D printing to develop customizable ring dosemeters.
  • To evaluate the performance characteristics of 3D-printed ring dosemeters.
  • To compare the new dosemeters with existing technologies and standards.

Main Methods:

  • Development of customizable ring dosemeters using two types of 3D-printable resins (hard and flexible).

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  • Integration of Beryllium Oxide (BeO) optically stimulated dosemeters within the 3D-printed rings.
  • Testing of energy and angular response across a specified range (24-662 keV, 0°-60°).
  • Sterilization compatibility assessment using various techniques.

    • Main Results:

    • The 3D-printed ring dosemeters demonstrated energy and angular responses within ±20% for the tested ranges.
    • Performance met the criteria outlined in the IEC 62387 Standard.
    • The new dosemeters showed reduced measurement uncertainty compared to traditional TLDs.
    • Improved ergonomic design was noted compared to commercial ring dosemeters.

    Conclusions:

    • 3D printing is a feasible technology for creating customizable and effective extremity ring dosemeters.
    • The developed dosemeters offer enhanced accuracy, reduced uncertainty, and better ergonomics for occupational radiation monitoring.
    • This innovation contributes to improved radiation protection practices in workplaces utilizing ionizing radiation.