EURADOS whole-body dosemeters intercomparisons: lessons learnt from individual results

Area of Science:

• Radiation protection and dosimetry
• Nuclear science and engineering

Background:

• Regular intercomparisons are crucial for assessing dosimetry system performance.
• Eurados Working Group 2 (WG2) has a long-standing program for whole-body dosimeter evaluation.

Purpose of the Study:

• To provide participants with actionable information from whole-body dosimeter intercomparisons.
• To evaluate the performance of individual dosimetry systems in terms of linearity, angular, energy, and mixed-field response.

Main Methods:

• Organizing biennial whole-body dosimeter intercomparisons (IC) in photon and beta fields since 2008.
• Designing irradiation plans to specifically test key performance characteristics of dosimetry systems.
• Analyzing results to identify anomalous responses and potential areas for improvement.

Main Results:

• Participants can extract detailed performance data from their dosimetry systems.
• The study identified specific performance characteristics like linearity and response to mixed fields as areas for participant focus.
• Analysis of anomalous responses suggests that improved calibration procedures can significantly reduce outliers.

Conclusions:

• Participants can gain valuable insights into their dosimetry system's performance through these intercomparisons.
• Improving calibration procedures is a key factor in enhancing the reliability and reducing outliers in whole-body dosimetry.
• The Eurados WG2 intercomparison program provides a vital platform for advancing dosimetry system accuracy.