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1、BRITISH STANDARD BS IEC 62244:2006 Radiation protection instrumentation Installed radiation monitors for the detection of radioactive and special nuclear materials at national borders ICS 13.280 ? Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:42:14 GMT+00:0
2、0 2007, Uncontrolled Copy, (c) BSI BS IEC 62244:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2006 BSI 2006 ISBN 0 580 48796 2 National foreword This British Standard reproduces verbatim IEC 62244:2006 and implements it as the
3、UK national standard. The UK participation in its preparation was entrusted to Technical Committee NCE/2, Radiation protection and measurement, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The Bri
4、tish Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This p
5、ublication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible interna
6、tional/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the IEC title
7、page, pages 2 to 25 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:42:14 GMT+00:00 20
8、07, Uncontrolled Copy, (c) BSI IECINTERNATIONAL STANDARD 62244 First edition 2006-06 Radiation protection instrumentation Installed radiation monitors for the detection of radioactive and special nuclear materials at national borders Reference number CEI/IEC 62244:2006 BS IEC 62244:2006 Licensed Cop
9、y: London South Bank University, London South Bank University, Thu Mar 01 06:42:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI CONTENTS 1 Scope and object .4 2 Normative references .4 3 Terms and definitions .5 4 General characteristics.7 4.1 Overview.7 4.2 Pedestrian.7 4.3 Road vehicles (includes ro
10、ad transported containers)8 4.4 Rail vehicles (includes rail transported containers)8 4.5 Conveyor.8 4.6 Configuration.8 4.7 Indication features.9 4.8 Speed control9 5 General test procedures .9 5.1 Nature of tests.9 5.2 Reference conditions and standard test conditions10 5.3 Tests performed under s
11、tandard test conditions 10 5.4 Tests performed with variation of influence quantities10 5.5 Statistical fluctuations .10 5.6 Alarm probability for gamma and neutron radiation10 5.7 Reference radiation.10 6 Radiation characteristics 11 6.1 False alarm test 11 6.2 Background effects11 6.3 Gamma radiat
12、ion detection12 6.4 Neutron radiation detection .12 6.5 Overload characteristics13 7 Electrical characteristics.13 7.1 Mains operation.13 7.2 Occupancy sensor.14 8 Electromagnetic compatibility .14 8.1 External magnetic fields 14 8.2 Radiated electromagnetic fields.14 8.3 Conducted disturbances indu
13、ced by bursts and radio frequencies .15 8.4 Surges and oscillatory waves 15 8.5 Electrostatic discharge 16 9 Mechanical characteristics17 9.1 Areas of application.17 9.2 Mechanical shocks 17 9.3 Vibration test.17 9.4 Microphonics/impact18 2 BS IEC 62244:2006 Licensed Copy: London South Bank Universi
14、ty, London South Bank University, Thu Mar 01 06:42:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 10 Environmental characteristics.18 10.1 Ambient temperature.18 10.2 Relative humidity.19 10.3 Sealing19 11 Documentation .20 11.1 Type test report.20 11.2 Certificate .20 11.3 Operation and maintenance
15、manual 20 Annex A (informative) Standardized special nuclear materials test sources for type testing of installed radiation monitors at national borders24 Figure 1 Example of a two-sided system 23 Table 1 Reference conditions and standard test conditions21 Table 2 Tests performed under standard test
16、 conditions 21 Table 3 Tests performed with variations of influence quantities22 Table A.1 Minimum SNM test sources25 3 BS IEC 62244:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:42:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI RADIATION PROTECTION INS
17、TRUMENTATION INSTALLED RADIATION MONITORS FOR THE DETECTION OF RADIOACTIVE AND SPECIAL NUCLEAR MATERIALS AT NATIONAL BORDERS 1 Scope and object The scope of this International Standard is to define the performance of installed monitors used for the detection of gamma and neutron radiation emitters c
18、ontained in objects/ containers or vehicles, general characteristics, mechanical characteristics, environmental requirements, test procedures and documentation. This standard is applicable to installed monitors designed to detect special nuclear and other radioactive materials by their emitted gamma
19、 and/or neutron radiation. They are used to monitor vehicles, cargo containers, people, or packages and are typically located at national and international borders, but may be used at any location where there is a need for this type of monitoring. This standard does not apply to hand-held monitors.
20、Information regarding the detection of special nuclear material (SNM) is contained in Annex A. This standard provides the purchaser with information that may be used to determine the performance of the monitor in detecting the presence of radioactive sources. This standard does not provide the data
21、needed to determine the performance of the monitor in measuring the quantity of the radioactive material. In this standard, the term radioactive material includes both special nuclear and radioactive material unless otherwise specifically noted. The radioactive material may be transported by vehicle
22、, carried by person, or concealed in a cargo container or in a package moved by conveyor belt, such as international mail parcels. Conformance with the requirements of this standard does not guarantee that a radioactive source will always be discovered. The selection of the location and the configur
23、ation of the monitoring system on each site needs to be optimised to achieve the best performance, however, this is outside the scope of this standard. 2 Normative references The following referenced documents are relevant to the application of this document. For dated references, only the edition c
24、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60038, IEC standard voltages IEC 60050-393, International Electrotechnical Vocabulary (IEV) Part 393: Nuclear instrumentation Physical phenomena and basic concepts 4 BS IEC 622
25、44:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:42:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IEC 60050-394:1995, International Electrotechnical Vocabulary (IEV) Chapter 394: Nuclear instrumentation: Instruments Amendment 1 (1996) Amendment 2 (2000
26、) IEC 60068-2-18, Environmental testing Part 2-18: Tests Test R and guidance: Water IEC 60068-2-27, Environmental testing Part 2: Tests Test Ea and guidance: Shock IEC 60068-2-75, Environmental testing Part 2-75: Tests Test Eh: Hammer tests IEC 60359, Electrical and electronic measurement equipment
27、Expression of performance IEC 61000-4-2, Electromagnetic compatibility (EMC) Part 4-2: Testing and measurement techniques Electrostatic discharge immunity test IEC 61000-4-3, Electromagnetic compatibility (EMC) Part 4-3: Testing and measurement techniques Radiated, radio-frequency, electromagnetic f
28、ield immunity test IEC 61000-4-4, Electromagnetic compatibility (EMC) Part 4-4: Testing and measurement techniques Electrical fast transient/burst immunity test IEC 61000-4-5, Electromagnetic compatibility (EMC) Part 4-5: Testing and measurement techniques Surge immunity test. IEC 61000-4-6, Electro
29、magnetic compatibility (EMC) Part 4-6: Testing and measurement techniques Immunity to conducted disturbances induced by radio-frequency fields IEC 61000-4-12, Electromagnetic compatibility (EMC) Part 4-12: Oscillatory waves immunity test IEC 61187, Electrical and electronic equipment Documentation 3
30、 Terms and definitions For the purposes of this document, the following terms and definitions, as well as those given in IEC 60050-393, IEC 60050-394 and IEC 60359, apply. 3.1 alarm assembly component that provides audio or visual signals or both to call attention 3.2 detection assembly that compone
31、nt of the installed radiation monitor system that contains the detectors and associated electronic devices 5 BS IEC 62244:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:42:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 3.3 detection zone location where r
32、adiation emitted by an object or person may be detected by the detection assembly(s). For two-sided monitors, the detection zone is located between opposing detection assemblies; for single-sided monitors, the detection zone is adjacent to the detection assembly surface 3.4 radioactive material both
33、 special nuclear and radioactive material, unless otherwise specifically noted 3.5 reference point of an assembly physical mark on a piece of equipment or assembly to be used in order to position it at a point where the conventionally true value of the quantity to be measured is known NOTE For this
34、standard, the physical mark may be used to identify where a source is positioned. 3.6 reference point of the detection zone that point that is at the geometrical center of the detection zone for two-sided monitors, or at the geometric center point of the detection zone that is adjacent to a single-s
35、ided detector at a distance from the detection assembly surface that is based on the monitor type 3.7 units units of the International System (SI) 3.8 Test nomenclature 3.8.1 qualification tests tests performed on a representative sample of equipment to verify the adequacy of the design and that the
36、 equipment meets the specifications agreed upon between manufacturer and user under normal, operational conditions and anticipated operation occurrences NOTE Qualification tests are performed in order to verify that the requirements of a specification are fulfilled. 3.8.2 type test conformity test m
37、ade of one or more items representative of the production IEV 394-20-28, modified 3.8.3 routine test test to which every device is subjected by the manufacturer or by the user to confirm compliance with certain criteria. IEV 394-20-08, modified 6 BS IEC 62244:2006 Licensed Copy: London South Bank Un
38、iversity, London South Bank University, Thu Mar 01 06:42:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 3.8.4 acceptance test contractual test to prove to the customer that the device meets certain conditions of its specification IEV 394-20-09 3.8.5 supplementary tests tests intended to provide suppl
39、ementary information on certain characteristics of the assemblies 4 General characteristics 4.1 Overview Monitors addressed by this standard are designed to detect radiation from gamma and/or neutron emitters contained in objects, containers, or vehicles, or carried by a pedestrian. They issue a vis
40、ual and/or audible alarm when the signal from the detection system exceeds an alarm threshold. Measurement occurs when the object passes through the detection zone (dynamic mode) or is placed for some period of time within the detection zone (static mode). Alarms are activated when the measured gamm
41、a or neutron emissions are statistically greater than the photon and/or neutron count rate detected in the absence of radioactive material. According to their use, monitors are classified as pedestrian, road vehicle, rail vehicle, conveyor. If a monitor is designed for use in two or more classificat
42、ions, its associated detection zone shall be appropriate for each classification. The detection zone shall be equivalent in width to the width of the entire detector assembly. The height shall be as required for its specific use and is described in the following subclauses. For example, if the detec
43、tor assembly for a pedestrian monitor is 1 m wide by 2 m high, the detection zone will be 1 m wide and from 0,1 m to 2 m from the floor or ground surface. 4.2 Pedestrian Pedestrian monitors shall provide a detection zone to ensure that people are monitored properly. As a minimum, the height of the d
44、etection zone shall be from 0,1 m to 2 m from the base surface. The width shall be based on the width of the detection assembly. Monitors may use a single detection assembly (single-sided) or multiple opposing detection assemblies (two-sided). The maximum distance of the detection zone shall be no m
45、ore than 1 m from the surface of the detection assembly for single-sided monitors. The detection zone of two-sided monitors is located between the detection assemblies. For evaluation purposes, the distance between each opposing detection assembly is 1 m. For dynamic monitors, the passage speed shal
46、l not exceed 1,2 m/s. 7 BS IEC 62244:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:42:14 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 4.3 Road vehicles (includes road transported containers) Road vehicle monitors shall provide a detection zone that ensur
47、es that the entire vehicle is monitored during passage. The monitoring system should be two-sided. Single-side monitors are discouraged. The detection zone of two-sided monitors is located between the detection assemblies, which should not be greater than 5 m apart. The height of the detection zone
48、shall be from 0,2 m to 4,5 m from the base surface. For dynamic monitors, the passage speed shall not exceed 8 km/h. NOTE The height of the detection zone may be changed on the basis of national requirements. 4.4 Rail vehicles (includes rail transported containers) Rail vehicle monitors shall be two
49、-sided. The detection zone shall be located between the opposing detection assemblies, which should not be more than 6 m apart. The height of the detection zone shall be from 0,3 m (from the rail) to 6 m. For dynamic monitors, the passage speed shall not exceed 8 km/h. NOTE The height of the detection zone may be changed on the basis of national requirements. 4.5 Conveyor Conveyor monitors shall provide a detec