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BS EN IEC 62387:2022 2023

BS EN IEC 62387:2022 2023

$215.11

Radiation protection instrumentation. Dosimetry systems with integrating passive detectors for individual, workplace and environmental monitoring of photon and beta radiation

Published By Publication Date Number of Pages
BSI 2023 96
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IEC 62387:2020 is available as IEC 62387:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 62387:2020 applies to all kinds of passive dosimetry systems that are used for measuring: – the personal dose equivalent Hp(10) (for individual whole body monitoring), – the personal dose equivalent Hp(3) (for individual eye lens monitoring), – the personal dose equivalent Hp(0,07) (for both individual whole body skin and local skin for extremity monitoring), – the ambient dose equivalent H*(10) (for workplace and environmental monitoring), – the directional dose equivalent H'(3) (for workplace and environmental monitoring), or – the directional dose equivalent H'(0,07) (for workplace and environmental monitoring).This document applies to dosimetry systems that measure external photon and/or beta radiation in the dose range between 0,01 mSv and 10 Sv and in the energy ranges given in Table 1. All the energy values are mean energies with respect to the fluence. The dosimetry systems usually use electronic devices for the data evaluation and thus are often computer controlled.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
10 English
CONTENTS
15 FOREWORD
17 INTRODUCTION
18 1 Scope
Table 1 – Mandatory and maximum energy ranges covered by this document
19 2 Normative references
Tables
20 3 Terms and definitions
30 4 Units and symbols
5 General test procedures
5.1 Basic test procedures
5.1.1 Instructions for use
5.1.2 Nature of tests
5.1.3 Reference conditions and standard test conditions
5.1.4 Production of reference radiation
31 5.1.5 Choice of phantom for the purpose of testing
5.1.6 Position of dosemeter for the purpose of testing
5.2 Test procedures to be considered for every test
5.2.1 Number of dosemeters used for each test
5.2.2 Consideration of the uncertainty of the conventional quantity value
5.2.3 Consideration of non-linearity
5.2.4 Consideration of natural background radiation
5.2.5 Consideration of several detectors or signals in a dosemeter
32 5.2.6 Performing the tests efficiently
6 Performance requirements: summary
33 7 Capability of a dosimetry system
7.1 General
7.2 Measuring range and type of radiation
7.3 Rated ranges of the influence quantities
7.4 Maximum rated measurement time tmax
34 7.5 Reusability
7.6 Model function
7.7 Example for the capabilities of a dosimetry system
35 8 Requirements for the design of the dosimetry system
8.1 General
8.2 Indication of the dose value (dosimetry system)
8.3 Assignment of the dose value to the dosemeter (dosimetry system)
8.4 Information given on the devices (reader and dosemeter)
36 8.5 Retention and removal of radioactive contamination (dosemeter)
8.6 Algorithm to evaluate the indicated value (dosimetry system)
8.7 Use of dosemeters in mixed radiation fields (dosimetry system)
9 Instruction manual
9.1 General
9.2 Specification of the technical data
37 10 Software, data and interfaces of the dosimetry system
10.1 General
38 10.2 Design and structure of the software
10.2.1 Requirements
10.2.2 Method of test
10.3 Identification of the software
10.3.1 Requirements
39 10.3.2 Method of test
10.4 Authenticity of the software and the presentation of results
10.4.1 Requirements
10.4.2 Method of test
10.5 Alarm and stop of system operation under abnormal operating conditions
10.5.1 Requirements
40 10.5.2 Method of test
10.6 Control of input data by the dosimetry system
10.6.1 Requirements
10.6.2 Method of test
10.7 Storage of data
10.7.1 Requirements
41 10.7.2 Method of test
10.8 Transmission of data
10.8.1 Requirements
42 10.8.2 Method of test
10.9 Hardware interfaces and software interfaces
10.9.1 Requirements
10.9.2 Method of test
10.10 Documentation for the software test
10.10.1 Requirements
43 10.10.2 Method of test
11 Radiation performance requirements and tests (dosimetry system)
11.1 General
44 11.2 Coefficient of variation
11.3 Non-linearity
11.3.1 Requirements
11.3.2 Method of test
11.3.3 Interpretation of results
45 11.4 Overload characteristics, after-effects, and reusability
11.4.1 Requirements
Table 2 – Values of c1 and c2 for w different dose values and n indications for each dose value
46 11.4.2 Method of test
11.4.3 Interpretation of the results
47 11.5 Radiation energy and angle of incidence for Hp(10) or H*(10) dosemeters
11.5.1 Photon radiation
Table 3 – Angles of incidence of irradiation for Hp(10) and H*(10) dosemeters
48 Figures
Figure 1 – Stepwise irradiation of an H*(10) dosemeter at 90° angle of incidence
49 11.5.2 Beta radiation
11.6 Radiation energy and angle of incidence for Hp(3) or H'(3) dosemeters
11.6.1 Photon radiation
50 Table 4 – Angles of incidence of irradiation for Hp(3) and H'(3) dosemeters
51 11.6.2 Beta radiation
52 11.7 Radiation energy and angle of incidence for Hp(0,07) or H'(0,07) dosemeters
11.7.1 Photon radiation
53 Table 5 – Angles of incidence of irradiation for Hp(0,07) and H'(0,07) dosemeters
54 11.7.2 Beta radiation
55 11.8 Over indication due to radiation incident from the side of an Hp(10), Hp(3) or Hp(0,07) dosemeter
11.8.1 Requirements
11.8.2 Method of test
56 11.8.3 Interpretation of the results
11.9 Indication of the presence of beta dose for Hp(0,07) whole body dosemeters
12 Response to mixed irradiations (dosimetry system)
12.1 Requirements
57 12.2 Method of test
12.2.1 General
12.2.2 Preparation of the test
12.2.3 Practical test
58 12.3 Interpretation of the results
13 Environmental performance requirements and tests
13.1 General
13.1.1 General requirement
13.1.2 General method of test
59 13.2 Ambient temperature and relative humidity (dosemeter)
13.2.1 General
13.2.2 Requirements
13.2.3 Method of test
13.2.4 Interpretation of the results
60 13.3 Light exposure (dosemeter)
13.3.1 General
13.3.2 Requirements
13.3.3 Method of test
13.3.4 Interpretation of the results
13.4 Dose build-up, fading and self-irradiation (dosemeter)
13.4.1 General
61 13.4.2 Requirements
13.4.3 Method of test
13.4.4 Interpretation of the results
13.5 Sealing (dosemeter)
13.6 Reader stability (reader)
13.6.1 General
62 13.6.2 Requirements
13.6.3 Method of test
13.6.4 Interpretation of the results
13.7 Ambient temperature (reader)
13.7.1 General
13.7.2 Requirements
13.7.3 Method of test
63 13.7.4 Interpretation of the results
13.8 Light exposure (reader)
13.8.1 General
13.8.2 Requirements
13.8.3 Method of test
64 13.8.4 Interpretation of the results
13.9 Primary power supply (reader)
13.9.1 General
13.9.2 Requirements
13.9.3 Method of test
65 13.9.4 Interpretation of the results
14 Electromagnetic performance requirements and tests (dosimetry system)
14.1 General
14.2 Requirements
66 14.3 Method of test
14.4 Interpretation of the results
15 Mechanical performance requirements and tests
15.1 General requirement
67 15.2 Drop (dosemeter)
15.2.1 Requirements
15.2.2 Method of test
15.2.3 Interpretation of the results
68 16 Documentation
16.1 Type test report
16.2 Certificate issued by the laboratory performing the type test
69 Table 6 – Symbols
71 Table 7 – Reference conditions and standard test conditions
72 Table 8 – Performance requirements for Hp(10) dosemeters
73 Table 9 – Performance requirements for Hp(3) dosemeters
74 Table 10 – Performance requirements for Hp(0,07) dosemeters
75 Table 11 – Performance requirements for H*(10) dosemeters
76 Table 12 – Performance requirements for H'(3) dosemeters
77 Table 13 – Performance requirements for H'(0,07) dosemeters
78 Table 14 – Environmental performance requirements for dosemeters and readers
79 Table 15 – Electromagnetic disturbance performance requirements for dosimetry systems according to Clause 14
80 Table 16 – Mechanical disturbances performance requirements for dosemeters
Table 17 – List of abbreviations
81 Annexes
Annex A (normative) Confidence limits
Figure A.1 – Test for confidence interval
82 Table A.1 – Student’s t-value for a double sided 95 % confidence interval
84 Annex B (informative) Causal connection between readout signals, indicated value and measured value
Figure B.1 – Data evaluation in dosimetry systems
85 Annex C (informative) Overview of the necessary actions that have to be performed for a type test according to this document
Table C.1 – Schedule for a type test of a dosemeter for Hp(10) fulfilling the requirements within the mandatory ranges
86 Annex D (informative) Uncertainty of dosimetry systems
87 Annex E (informative) Conversion coefficients hpD(0,07;source;α), h’D(0,07;source;α), hpD(3;source;α), and h’D(3;source;α) from personal absorbed dose in 0,07 mm depth, Dp(0,07), to the corresponding dose equivalent quantities for radiation qualities defined in ISO 6980-1
Table E.1 – Conversion coefficients hpD(0,07;source;α) slab from personal absorbed dose in 0,07 mm depth, Dp(0,07), to the dose equivalent Hp(0,07) for the slab phantom for radiation qualities defined in ISO 6980-1
88 Table E.2 – Conversion coefficients hpD(0,07;source;α) rod from personal absorbed dose in 0,07 mm depth, Dp(0,07), to the dose equivalent Hp(0,07) for the rod phantom for radiation qualities defined in ISO 6980-1
89 Table E.3 – Conversion coefficients h’D(0,07;source;α) from personal absorbed dose in 0,07 mm depth, Dp(0,07), to the dose equivalent H'(0,07) for the ICRU sphere for radiation qualities defined in ISO 6980-1
90 Table E.4 – Conversion coefficients hpD(3;source;α) cylinder from personal absorbed dose in 0,07 mm depth, Dp(0,07), to the dose equivalent Hp(3) for the cylinder phantom for radiation qualities defined in ISO 6980-1
Table E.5 – Conversion coefficients h’D (3;source;α) from personal absorbed dose in 0,07 mm depth, Dp(0,07), to the dose equivalent H'(3) for the ICRU sphere for radiation qualities defined in ISO 6980-1
91 Annex F (informative) Computational method of test for mixed irradiations
Table F.1 – Example of dosemeter response table and range limits
92 Figure F.1 – Flow chart of a computer program to perform tests according to 12.2
93 Bibliography

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BS EN IEC 62387:2022 2023
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