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BS EN 61526:2013

BS EN 61526:2013

$198.66

Radiation protection instrumentation. Measurement of personal dose equivalents Hp(10) and Hp(0,07) for X, gamma, neutron and beta radiations. Direct reading personal dose equivalent meters

Published By Publication Date Number of Pages
BSI 2013 66
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This International Standard applies to personal dose equivalent meters with the following characteristics:

  1. They are worn on the trunk or the extremities of the body.

  2. They measure the personal dose equivalents Hp(10) and Hp(0,07) from external X and gamma, neutron and beta radiations, and may measure the personal dose equivalent rates Hp (10) and Hp (0,07) for the same radiations (for alarming purposes).

  3. They have a digital indication.

  4. They may have alarm functions for the personal dose equivalents or personal dose equivalent rates.

This standard is therefore applicable to the measurement of the following combinations of dose quantities (including the respective dose rates) and radiation

  1. Hp(10) and Hp(0,07) from X and gamma radiations;

  2. Hp(10) and Hp(0,07) from X, gamma and beta radiations;

  3. Hp(10) from X and gamma radiations;

  4. Hp(10) from neutron radiations;

  5. Hp(10) from X, gamma and neutron radiations;

  6. Hp(0,07) from X, gamma and beta radiations.

NOTE 1 When reference is made in this standard to ”dose”, this is meant to indicate personal dose equivalent, unless otherwise stated.

NOTE 2 When reference is made in this standard to ”dosemeter”, this is meant to include all personal dose equivalent meters, unless otherwise stated.

This standard specifies requirements for the dosemeter and, if supplied, for its associated readout system.

This standard specifies, for the dosemeters described above, general characteristics, general test procedures, radiation characteristics as well as electrical, mechanical, safety and environmental characteristics. The only requirements specified for associated readout systems are those which affect its accuracy of readout of the personal dose equivalent and alarm settings and those which concern the influence of the reader on the dosemeter.

This standard also specifies in Annex C usage categories with respect to different measuring capabilities.

This standard does not cover special requirements for accident or emergency dosimetry although the dosemeters may be used for this purpose. The standard does not apply to dosemeters used for measurement of pulsed radiation, such as radiation emanating from most medical diagnostic X-ray facilities, linear accelerators or similar equipment.

PDF Catalog

PDF Pages PDF Title
9 English
CONTENTS
13 INTRODUCTION
14 1 Scope and object
15 2 Normative references
16 3 Terms and definitions
24 4 Units and list of symbols
4.1 Units
4.2 List of symbols
Table 1 – Symbols (and abbreviated terms)
26 5 Mechanical characteristics
5.1 Size
5.2 Mass
5.3 Case
5.4 Switches
6 General characteristics
6.1 Storage of dose information
6.2 Indication
27 6.3 Dosemeter markings
6.4 Retention of radioactive contamination
6.5 Ranges for dose equivalent and dose equivalent rate
6.6 Effective range of measurement
6.7 Rated range of an influence quantity
6.8 Use of more than one dosemeter
28 6.9 Indication due to instrument artefacts
6.10 Dose or dose rate alarms
6.11 Indication of malfunction
7 General test procedures
7.1 Nature of tests
29 7.2 Reference conditions and standard test conditions
7.3 Tests for influence quantities of type F
7.4 Tests for influence quantities of type S
7.5 Phantom for testing
7.6 Position of detector assembly for the purpose of testing
30 7.7 Position of dosemeter during use
7.8 Minimum rated range of influence quantity
7.9 Low dose equivalent rates
7.10 Statistical fluctuations
7.11 Production of reference radiation
8 Additivity of indicated value
8.1 Requirements
31 8.2 Method of test
8.3 Interpretation of the results
9 Radiation performance requirements and tests
9.1 General
32 9.2 Consideration of the uncertainty of the conventional quantity value
9.3 Constancy of the dose response, dose rate dependence and statistical fluctuations
34 9.4 Variation of the response due to photon radiation energy and angle of incidence
35 9.5 Variation of the response due to neutron radiation energy and angle of incidence
36 9.6 Variation of the response due to beta radiation energy and angle of incidence
37 9.7 Retention of dose equivalent reading
38 9.8 Overload characteristics
39 9.9 Alarm
41 9.10 Model function
10 Electrical and environmental performance requirements and tests
10.1 General
10.2 Power supplies
43 10.3 Ambient temperature
44 10.4 Relative humidity
45 10.5 Atmospheric pressure
10.6 Sealing
10.7 Storage
11 Electromagnetic performance requirements and tests
11.1 General
46 11.2 Electrostatic discharge
11.3 Radiated electromagnetic fields
47 11.4 Conducted disturbances induced by fast transients or bursts
11.5 Conducted disturbances induced by surges
11.6 Conducted disturbances induced by radio-frequencies
48 11.7 50 Hz/60 Hz magnetic field
11.8 Voltage dips and short interruptions
12 Mechanical performance, requirements and tests
12.1 General
12.2 Drop test
49 12.3 Vibration test
12.4 Microphonics test
13 Uncertainty
50 14 Documentation
14.1 Type test report
14.2 Certificate
15 Operation and maintenance manual
52 Table 2 – Values of c1 and c2 for w different dose values and n indications for each dose value
53 Table 3 – Reference conditions and standard test conditions
54 Table 4 – Radiation characteristics of Hp(0,07) dosemeters for X, gamma and beta radiation
55 Table 5 – Radiation characteristics of Hp(10) dosemeters for X and gamma radiation
56 Table 6 – Radiation characteristics of Hp(10) dosemeters for neutron radiation
57 Table 7 – Electrical and environmental characteristics of dosemeters
58 Table 8 – Electromagnetic disturbance characteristics of dosemeters
Table 9 – Mechanical disturbances characteristics of dosemeters
59 Annex A (normative) Statistical fluctuations
60 Table A.1 – Number of instrument readings required to detect true differences (95 % confidence level) between two sets of instrument readings on the same instrument TT
61 Annex B (informative) Procedure to determine the variation of the relative response due to radiation energy and angle of radiation incidence
63 Annex C (informative) Usage categories of personal dosemeters
Table C.1 – Usage categories of personal dosemeters
64 Bibliography
BS EN 61526:2013
$198.66