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EURADOS trial performance test for photon dosimetry.
H Stadtmann1, J M Bordy, P Ambrosi
1Austrian Research Centre Seibersdorf, A-2444 Seibersdorf, Austria. hannes.stadtmann@arcs.ac.at
Radiation Protection Dosimetry
|October 6, 2001
Summary
Trial performance tests for whole-body photon dosemeters showed most services met criteria. Outliers were mainly due to specific high-energy radiation fields not typically encountered in workplaces.
Area of Science:
- Radiation protection
- Metrology
- Personal dosimetry
Background:
- EURADOS Action focused on harmonisation and quality assurance in individual monitoring.
- Trial performance tests are crucial for evaluating dosimetry services.
Purpose of the Study:
- To assess the performance of whole-body photon dosemeters.
- To identify potential issues in dosimetric quality assurance.
Main Methods:
- Conducted trial performance tests involving 26 dosimetry services.
- Utilized 12 different radiation fields simulating workplace conditions.
- Evaluated 312 single results against established performance limits.
Main Results:
- 26 results fell outside the trumpet curve limits.
- 32 results were outside the acceptable range of 1/1.5 to 1.5.
- Most outliers originated from high-energy R-F irradiations without electronic equilibrium.
Conclusions:
- Excluding specific challenging radiation fields, most services met performance criteria.
- The study highlights the importance of considering specific irradiation field characteristics in performance testing.
- Further investigation into high-energy R-F fields may be warranted.