1、BRITISH STANDARD BS IEC 61584:2001 Radiation protection instrumentation Installed, portable or transportable assemblies Measurement of air kerma direction and air kerma rate ICS 17.020 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS IEC 61584:2001 This British Standard, havi
2、ng been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 23 August 2001 BSI 23 August 2001 ISBN 0 580 38395 4 National foreword This British Standard reproduces verbatim IEC 61584
3、:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee NCE/2, Health physics instrumentation, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.
4、 From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-refer
5、ences The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catal
6、ogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the tex
7、t; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cov
8、er, an inside front cover, the IEC title page, pages 2 to 31, and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsNORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 61584 Premire d
9、ition First edition 2001-06 Instrumentation pour la radioprotection Appareils poste fixe, portables ou mobiles Mesures de la direction et du dbit de kerma dans lair Radiation protection instrumentation Installed, portable or transportable assemblies Measurement of air kerma direction and air kerma r
10、ate Numro de rfrence Reference number CEI/IEC 61584:2001 BSIEC61584:200111002:CEI 48516 2 CONTENTS FOREWORD 3 1 General 4 1.1 Scope and object 4 1.2 Normative references 5 1.3 Terms, definitions and units 6 2 Design requirements .10 2.1 General characteristics 10 2.2 Indication facilities .12 3 Test
11、 procedures12 3.1 General test conditions 12 3.2 Radiation characteristics13 3.3 Relative intrinsic error for air kerma rate measurements.13 3.4 Intrinsic errors for direction measurements.15 3.5 Variation of responses with radiation energy.16 3.6 Variation of the air kerma rate response with angle
12、of incidence.17 3.7 Variation of the azimuth angle response with elevation angle incidence 18 3.8 Variation of the elevation angle response with azimuth angle incidence 19 3.9 Response to other ionizing radiation.19 3.10 Overload characteristics.19 3.11 Electrical characteristics 20 3.12 Mechanical
13、characteristics .23 3.13 Environmental characteristics.24 4 Documentation26 4.1 Type test report .26 4.2 Certificate26 4.3 Operation and maintenance manual .26 Bibliography 31 Figure 1 Schematic of beam direction and definition of angles 9 Table 1 Reference conditions and standard test conditions 27
14、 Table 2 Tests performed under standard test conditions 27 Table 3 Tests performed with variations of influence quantities 28 BSIEC61584:20012BSI24August200161584 IEC:2001 4 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ RADIATION PROTECTION INSTRUMENTATION INSTALLED, PORTABLE OR TRANSPORTABLE ASSEMBLI
15、ES MEASUREMENT OF AIR KERMA DIRECTION AND AIR KERMA RATE FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co
16、-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dea
17、lt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determ
18、ined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committ
19、ees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IE
20、C National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC
21、 provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights.
22、The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61584 has been prepared by subcommittee 45B: Radiation protection instrumentation, of IEC technical committee 45: Nuclear instrumentation. The text of this standard is based on the followi
23、ng documents: FDIS Report on voting 45B/308/FDIS 45B/316/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 3. The committee has deci
24、ded that the contents of this publication will remain unchanged until 2005. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. BSIEC61584:20013BSI24August200161584 IEC:2001 5 RADIATION PROTECTION INSTRUMENTATION INSTALLED, PORTABLE OR TRANSPORTAB
25、LE ASSEMBLIES MEASUREMENT OF AIR KERMA DIRECTION AND AIR KERMA RATE 1 General 1.1 Scope and object 1.1.1 This International Standard is applicable to installed, portable or transportable assemblies intended to measure the direction of an X or gamma radiation source in terms of azimuth and elevation
26、angles, as shown in the schema of figure 1; the X or gamma air kerma rate at the equipment location; the attenuation coefficient in a given medium and the related effective energy of the X or gamma beam incident to the equipment location. The energy range of X or gamma radiation is at least between
27、50 keV and 1,5 MeV. 1.1.2 The assemblies considered in this standard comprise at least a detection sub-assembly which could include several detectors; a measuring sub-assembly including a display device, which may be connected together or incorporated into a single assembly or interfaced. This sub-a
28、ssembly could contain a microprocessor equipped with an algorithm to process the measured data. 1.1.3 This standard is applicable to measuring assemblies designed for special applications: e.g. high air kerma rate measurements and direction of the plume following a nuclear accident or, when mounted
29、on a vehicle, to guide it towards the X or gamma sources and to bring it closer to the intervention place. 1.1.4 National regulation or practice may require the measurement of other quantities than air kerma rate (e.g. ambient dose equivalent rate, other dose rate or exposure rate). This standard ma
30、y be applied to performance characteristics of equipment to measure any such quantity. For example, the numerical values given for the radiation characteristics apply to any case but the conventionally true values would be expressed in the appropriate quantity. 1.1.5 This publication specifies gener
31、al characteristics, general test procedures, electrical, safety and environmental characteristics and the identification certificate for assemblies defined in this clause. 1.1.6 This standard does not apply to thermoluminescence dosimetry systems or other passive integrating devices. 1.1.7 This stan
32、dard does not provide specifications for measurements of beta radiation and neutrons. 1.1.8 This standard is not applicable to the operating characteristics of indicating or recording equipments as such (e.g. indicating meters, recorders, alarms etc.). The characteristics of such equipment should be
33、 in conformity with the general requirements appropriate to them. BSIEC61584:20014BSI24August200161584 IEC:2001 6 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated refer
34、ences, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated ref
35、erences, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60038:1983, IEC standard voltages IEC 60050-151: , International Electrotechnical Vocabulary (IEV) Part 151: Electrical and magnetic de
36、vices 1) IEC 60050(393):1996, International Electrotechnical Vocabulary (IEV) Chapter 393: Nuclear instrumentation Physical phenomena and basic concepts IEC 60050(394):1995, International Electrotechnical Vocabulary (IEV) Chapter 394: Nuclear instrumentation Instruments IEC 60068-2-27:1987, Environm
37、ental testing Part 2: Tests. Test Ea and guidance: Shock IEC 60086-2:1997, Primary batteries Part 2: Specification sheets IEC 60359:1987, Expression of the performance of electrical and electronic measuring equipment IEC 60532:1992, Radiation protection instrumentation Installed dose ratemeters, war
38、ning assemblies and monitors X and gamma radiation of energy between 50 keV and 7 MeV IEC 61000-4-3:1995, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 3: Radiated, radio-frequency, electromagnetic field immunity test IEC 61017-1:1991, Portable, transportable
39、 or installed X or gamma radiation ratemeters for environmental monitoring Part 1: Ratemeters IEC 61017-2:1994, Radiation protection instrumentation Portable, transportable or installed equipment to measure X or gamma radiation for environmental monitoring Part 2: Integrating assemblies IEC 61187:19
40、93, Electrical and electronic measuring equipment Documentation ISO 4037-1:1996, X and gamma reference radiation for calibrating dosimeters and doserate meters and for determining their response as a function of photon energy Part 1: Radiation characteristics and production methods ISO 4037-2:1997,
41、X and gamma reference radiation for calibrating dosimeters and doserate meters and for determining their response as a function of photon energy Part 2: Dosimetry for radiation protection over the energy ranges from 8 keV to 1,3 MeV and 4 MeV to 9 MeV _ 1)To be published. BSIEC61584:20015BSI24August
42、200161584 IEC:2001 7 1.3 Terms, definitions and units For the purpose of this standard, the terms defined in IEC 60050(393), IEC 60050(394), IEC 60359, IEC 61017-1 and IEC 61017-2 together with the following apply. Figure 1 gives a schematic representation of terms defining angles related to beam di
43、rection. 1.3.1 portable direction and air kerma rate meter assembly designed to be easily carried (see 2.1.12) and intended to measure the direction and the air kerma rate, at various places, of X and gamma beams incident to detection sub- assembly including several radiation detectors NOTE This ass
44、embly will also include associated sub-assemblies or basic function units. 1.3.2 installed direction and air kerma rate meter assembly normally fixed in position. It may be equipped with means of recording and with remote read-out capabilities 1.3.3 transportable direction and air kerma rate meter r
45、ate meter normally installed in a vehicle. Such equipment may be used for example to guide the vehicle closer to the X or gamma source. It may be equipped with means of recording and with remote read-out capabilities 1.3.4 azimuth angle, angle on the horizontal plane between the direction of the bea
46、m projection on this plane and the reference direction = 0 NOTE The unit of measurement should be degree (or radian). 1.3.5 elevation angle, angle between the direction of the beam and the vertical axis taken as reference direction = 0 NOTE The unit of measurement should be degree (or radian). 1.3.6
47、 attenuation coefficient, 1.3.6.1 linear attenuation coefficient is equal to the probability per photon of given energy of undergoing an interaction per unit absorber thickness expressed in cm 1 1.3.6.2 mass attenuation coefficient is obtained by dividing the linear attenuation coefficient by the de
48、nsity of the medium expressed in cm 2 g 1 NOTE It is assumed in this standard that the dose attenuation, in the detection medium of the detection sub- assembly, is an exponential function of the track length of photons in this medium. If l is the track length (cm) of photons in the medium and the at
49、tenuation coefficient (cm 1 ), then e lis the dose attenuation. BSIEC61584:20016BSI24August200161584 IEC:2001 8 1.3.7 effective energy, E energy deduced from the measurement of the attenuation coefficient using a function relating these two quantities (dose attenuation and attenuation coefficient) 1.3.8 conventionally true value of a quantity best estimate of the value of that qu
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