EN 62387-1-2012 en Radiation protection instrumentation - Passive integrating dosimetry systems for environmental and personal monitoring - Part 1 General characteristics and perfo.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationRadiation protection instrumentation Passive integrating dosimetry systems for environmental and personal monitoringPart 1: General characteristics and performance requirements (

2、IEC 62387-1:2007, modified)BS EN 62387-1:2012BS EN 62387-1:2012National forewordThis British Standard is the UK implementation of EN 62387-1:2012. It is derived from IEC 62387-1:2007.The CEN common modifications have been implemented at the appropriate places in the text. Each common modification is

3、 indicated in the text by a vertical line in the left margin of the text.The UK participation in its preparation was entrusted to A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provision

4、s of a contract. Users are responsible for its correct application. The British Standards Institution 2012.Published by BSI Standards Limited 2012.ISBN 978 0 580 68004 5ICS 13.280 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published und

5、er the authority of the Standards Policy and Strategy Committee on 30 November 2012.Date Text affectedBRITISH STANDARDTechnical Committee NCE/2, Radiation protection and measurement.ELECAmendments/corrigenda issued since publicationEUROPEAN STANDARD EN 62387-1 NORME EUROPENNE EUROPISCHE NORM Februar

6、y 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserv

7、ed worldwide for CENELEC members. Ref. No. EN 62387-1:2012 E ICS 13.280 English version Radiation protection instrumentation - Passive integrating dosimetry systems for environmental and personal monitoring - Part 1: General characteristics and performance requirements (IEC 62387-1:2007, modified) I

8、nstrumentation pour la radioprotection - Systmes dosimtriques intgrs passifs pour la surveillance de lenvironnement et de lindividu - Partie 1: Caractristiques gnrales et exigences de fonctionnement (CEI 62387-1:2007, modifie) Strahlenschutz-Messgerte - Passive, integrierende Dosimetriesysteme zur U

9、mwelt- und Personenberwachung - Teil 1: Allgemeine Eigenschaften und Leistungsanforderungen (IEC 62387-1:2007, modifiziert) This European Standard was approved by CENELEC on 2012-01-02. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for g

10、iving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in thr

11、ee official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national elec

12、trotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swede

13、n, Switzerland, Turkey and the United Kingdom. Contents Foreword . 5Introduction . 61Scope and object . . 72Normative references . 83Terms and definitions . 84Units and symbols . 165General test procedures . . 165.1Basic test procedures 165.2Test procedures to be considered for every test 176Perform

14、ance requirements: summary 187Capability of a dosimetry system 187.1 General . 187.2 Measuring range and type of radiation 187.3 Rated ranges of the influence quantities . . 187.4 Maximum rated measurement time tmax. . 187.5 Reusability . 187.6 Model function . . 187.7 Example for the capabilities o

15、f a dosimetry system 198Requirements for the design of the dosimetry system 198.1 General . 198.2 Indication of the dose value (dosimetry system) 198.3 Assignment of the dose value to the dosemeter (dosimetry system) . . 208.4 Information given on the devices (reader and dosemeter) . 208.5 Retention

16、 and removal of radioactive contamination (dosemeter) . . 208.6 Algorithm to evaluate the indicated value (dosimetry system). 208.7 Use of dosemeters in mixed radiation fields (dosimetry system) . 209Instruction manual. 219.1General . 219.2Specification of the technical data . 2110Software, data and

17、 interfaces of the dosimetry system . 2210.1General . 2210.2Requirements . 2210.3Method of test . 2511Radiation performance requirements and tests (dosimetry system) . 2711.1General . 2711.2Coefficient of variation . 2711.3Non-linearity 2811.4Overload characteristics, after-effects, and reusability

18、. . 2911.5Radiation energy and angle of incidence for Hp(10) or H*(10) dosemeters . 3011.6Radiation energy and angle of incidence for Hp(0,07) dosemeters . . 3211.7Over response to radiation incidence from the side of an Hp(10) or Hp(0,07)dosemeter . . 3411.8Indication of the presence of beta dose f

19、or Hp(0,07) whole body dosemeters . 3512Response to mixed irradiations (dosimetry system) . . 3512.1Requirements . 3512.2Method of test . 35 2 BS EN 62387-1:2012 EN 62387-1:2012 (E)12.3Interpretation of the results . 3613Environmental performance requirements and tests . 3713.1General . 3713.2Ambien

20、t temperature and relative humidity (dosemeter) . . 3713.3Light exposure (dosemeter) 3813.4Dose build-up, fading, self-irradiation, and response to natural radiation (dosemeter) . 3913.5Sealing (dosemeter) . 4013.6Reader stability (reader) . 4013.7Ambient temperature (reader) . . 4113.8Light exposur

21、e (reader) 4113.9Primary power supply (reader) . 4214Electromagnetic performance requirements and tests (dosimetry system) . . 4314.1General . 4314.2Requirement 4314.3Method of test . 4414.4Interpretation of the results . 4415Mechanical performance requirements and tests . 4415.1General requirement

22、4415.2Drop (dosemeter) 4516Documentation . . 4516.1Type test report 4516.2Certificate issued by the laboratory performing the type test . . 45Annex A (normative) Confidence limits . 55A.1General . 55A.2Confidence interval for the mean, x . 56A.3Confidence interval for a combined quantity . 56Annex B

23、 (informative) Causal connection between readout signals, indicated value and measured value 58Annex C (informative) Overview of the necessary actions that have to be performed for a type test according to this standard . . 59Annex D (informative) Usage categories of passive dosemeters . 61Annex ZA

24、(normative) Normative references to international publications with their corresponding European publications . 62Annex ZB (informative) Uncertainty of dosimetry systems . 64Annex ZC (informative) Conversion coefficients hpK(0.07;S,) and hpK(0.07;R,) from air kerma, Ka, to the dose equivalent Hp(0.0

25、7) for radiation qualities defined in ISO 4037-1 and the rod, pillar and slab phantom 65Annex ZD (informative) Computational method of test for mixed irradiations. . 66Bibliography 68Figures Figure A.1 Test for confidence interval . 55Figure B.1 Data evaluation in dosimetry systems . . 58Figure ZD.1

26、 Flow chart of a computer program to perform tests according to 12.2 67 3 BS EN 62387-1:2012 EN 62387-1:2012 (E)Tables Table 1 Symbols . 47Table 2 Reference conditions and standard test conditions . . 49Table 3 Performance requirements for Hp(10) dosemeters . 50Table 4 Performance requirements for H

27、p(0,07) dosemeters 51Table 5 Performance requirements for H*(10) dosemeters . . 52Table 6 Environmental performance requirements for dosemeters and readers . . 53Table 7 Electromagnetic disturbance performance requirements for dosimetry systems according to Clause 14 54Table 8 Mechanical disturbance

28、s performance requirements for dosemeters . 54Table A.1 Students t-value for a double sided 95 % confidence interval . 56Table C.1 Schedule for a type test of a dosemeter for Hp(10) fulfilling the requirements within the mandatory ranges . 59Table D.1 Usage categories of passive dosemeters 61Table Z

29、C.1 Conversion coefficients hpK(0,07;S,) and hpK(0,07;R,) from air kerma, Ka, to the dose equivalent Hp(0.07) for radiation qualities defined in ISO 4037-1 and for the rod, pillar, and slab phantom . 65 4 BS EN 62387-1:2012 EN 62387-1:2012 (E)Foreword This document (EN 62387-1:2012) consists of the

30、text of IEC 62387-1:2007 prepared by IEC/SC 45B, “Radiation protection instrumentation“, of IEC/TC 45, “Nuclear instrumentation“, together with the common modifications prepared by CLC/TC 45B, “Radiation protection instrumentation“. The following dates are fixed: latest date by which this document h

31、as to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-01-02 latest date by which the national standards conflictingwith this document have to be withdrawn (dow) 2015-01-02 Attention is drawn to the possibility that some of the elements o

32、f this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Clauses, subclauses, notes, tables, figures and annexes which are additional to those in IEC 62387-1:2007 are prefixed “Z”. In this document, the commo

33、n modifications to IEC 62387-1:2007 are indicated by a vertical line in the left margin of the text. The main objectives of EN 62387-1 are to specify performance requirements for complete dosimetry systems including detectors, dosemeters, readers, and additional equipment. In addition, the correspon

34、ding methods of test to check that these requirements are met are given in detail, harmonize requirements for all types of passive dosimetry systems detecting external photon and beta radiation, specify the use the operational quantities according to ICRU 51, harmonize tests using radiation with rel

35、evant ISO standards on reference radiation and calibration: ISO 4037 for photon radiation, ISO 6980 for beta radiation and ISO 8529 for neutron radiation. For this reason, no conversion coefficients from air kerma (or absorbed dose or fluence) to the operational quantities are given in this standard

36、, except in case the necessary conversion coefficients are not included in the respective ISO standard. Those given in the ISO-standards are applicable, incorporate basic terms of the concept that a result of a measurement essentially consists of a value and an associated uncertainty, as laid down i

37、n the introductions of IEV 311 and EN 60359 and refer the reader to an IEC technical report for complete uncertainty analysis in radiation protection measurements and to the GUM, align CENELEC performance requirements on dosimetry systems for measuring personal dose equivalents with the recommendati

38、ons on accuracy stated in the ICRP Publication 75: General Principles for the Radiation Protection of Workers. Further information is given in the informative Annex ZB. 5 BS EN 62387-1:2012 EN 62387-1:2012 (E)Introduction A dosimetry system may consist of the following elements: a) a passive device,

39、 referred to here as a detector, which, after the presence of radiation, provides and stores a signal for use in measuring one or more quantities of the incident radiation field; b) a dosemeter, that incorporates some means of identification and contains one or more detectors; c) a reader which is u

40、sed to readout the stored information (signal) from the detector, in order to determine the radiation dose; d) a computer with appropriate software to control the reader, store the signals transmitted from the reader, calculate, display and store the evaluated dose in the form of an electronic file

41、or paper copy; e) additional equipment and documented procedures (instruction manual) for performing associated processes such as deleting stored dose information, cleaning dosemeters, or those needed to ensure the effectiveness of the whole system. 6 BS EN 62387-1:2012 EN 62387-1:2012 (E)1 Scope an

42、d object This European Standard applies to all kinds of passive dosimetry systems that are used for measuring the personal dose equivalent Hp(10) (for whole body dosimetry), the personal dose equivalent Hp(0,07) (for both whole body and extremity dosimetry),or the ambient dose equivalent H*(10) (for

43、 environmental dosimetry). It applies to dosimetry systems that measure external photon or beta radiation in the dose range between 0,01 mSv and 10 Sv and in the energy ranges given in the following Table. All the energy values are mean energies with respect to the prevailing dose quantity. The dosi

44、metry systems usually use electronic devices for the data evaluation and thus are often computer controlled. Measuring quantity Mandatory energy range for photon radiation Maximum energy range for testing photon radiationMandatory energy range for beta-particle radiation Maximum energy range for tes

45、ting beta-particle radiationHp(10), H*(10) 80 keV to 1,25 MeV 12 keV to 7 MeV - - Hp(0,07) 30 keV to 250 keV 8 keV to 7 MeV 0,8 MeV almost equivalent to an Emaxof 2,27 MeV 0,07 MeVato 1,2 MeV almost equivalent to Emaxfrom 0,225 MeV to 3,54 MeVaFor beta-particle radiation, an energy of 0,07 MeV is re

46、quired to penetrate the dead layer of skin of 0,07 mm (almost equivalent to 0,07 mm of ICRU tissue). NOTE 1 In this standard, “dose” means personal or ambient dose equivalent, unless otherwise stated. NOTE 2 For Hp(10) and H*(10) no beta radiation is considered. Reasons: 1) Hp(10) and H*(10) are a c

47、onservative estimate for the effective dose which is not a suitable quantity for beta radiation. 2) No conversion coefficients are available in ICRU 56, ICRU 57 or ISO 6980. NOTE 3 The maximum energy ranges are the energy limits within which type tests according to this standard are possible. In add

48、ition, this standard can be applied for testing neutron dosimetry systems concerning the design (Clause 8), the instruction manual (Clause 9), the software (Clause 10), environmental influences (Clause 13), electromagnetic influences (Clause 14), mechanical influences (Clause 15), and the documentation (Clause 16). The test utilizing radiation (Clauses 13 to 15) shall be done with neutron reference radiation qualities according to the ISO 8529 series. In some countries the presence of beta dose has