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BS EN ISO 14146:2021

BS EN ISO 14146:2021

$102.76

Radiological protection. Criteria and performance limits for the periodic evaluation of dosimetry services

Published By Publication Date Number of Pages
BSI 2021 20
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The quality of a supplier of a dosimetry service depends on both the characteristics of the approved (typeā€‘tested) dosimetry system1 and the training and experience of the staff, together with the calibration procedures and quality assurance programmes.

This document specifies the criteria and the test procedures to be used for the periodic verification of the performance of dosimetry services supplying personal and/or area dosemeters.

An area dosemeter can be a workplace dosemeter or an environmental dosemeter.

The performance evaluation can be carried out as a part of the approval procedure for a dosimetry system or as an independent check to verify that a dosimetry service fulfils specified national or international type test performance requirements under representative exposure conditions that are expected or mimic workplace fields from the radiological activities being monitored.

This document applies to personal and area dosemeters for the assessment of external photon radiation with a (fluence weighted) mean energy between 8 keV and 10 MeV, beta radiation with a (fluence weighted) mean energy between 60 keV and 1,2 MeV, and neutron radiation with a (fluence weighted) mean energy between 25,3 meV (i.e. thermal neutrons with a Maxwellian energy distribution with kT = 25,3 meV) and 200 MeV.

It covers all types of personal and area dosemeters needing laboratory processing (e.g. thermoluminescent, optically stimulated luminescence, radiophotoluminescent, track detectors or photographic-film dosemeters) and involving continuous measurements or measurements repeated regularly at fixed time intervals (e.g. several weeks, one month).

Active dosemeters (for dose measurement) may also be treated according to this document. Then, they should be treated as if they were passive (i.e. the dosimetry service reads their indicated values and reports them to the evaluation organization).

1 If this document is applied to a dosimetry system for which no approval (pattern or type test) has been provided, then in the following text approval or type test should be read as the technical data sheet provided by the manufacturer or as the data sheet required by the regulatory authority.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 1 Scope
2 Normatives references
8 3 Terms and definitions
10 4 Quantities measured
5 Frequency of evaluation
6 Test conditions
6.1 Standard test conditions and special handling conditions
6.2 Radiation
11 6.3 Dose range
12 7 Performance limits
7.1 Limits
7.1.1 Personal and area dosemeters
13 7.1.2 Environmental dosemeters for Cs-137 and environmental radiation
7.2 Approval criterion
8 Operational procedures
8.1 Evaluation sample size
8.2 Evaluation procedure
14 8.3 Evaluation sequence
9 Test report
16 Annex A (informative) Graphical illustrations of the performance limits
18 Bibliography

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BS EN ISO 14146:2021
$102.76