Radiation protection instrumentation - Neutron ambient dose equivalent (rate) meters (IEC 61005:2014)

This International Standard is applicable to assemblies designed to measure the ambient dose equivalent (rate) due to neutron radiation in fields that contain neutrons with energies below 20 MeV, and which comprise at least:
a)   a detection assembly, which may, for example, consist of a detector probe for thermal neutrons and an arrangement of neutron moderating and absorbing media surrounding the detector;
b)   a measuring assembly with a display for the measured quantity, which may be incorporated into a single assembly with the detector or connected to it by means of a flexible cable.
Instruments with energy range up to 20 MeV are covered by this standard. If the instrument also provides indication of the neutron dose, it should meet the neutron dose requirements stated in this standard.

Strahlenschutz-Messgeräte - Umgebungsäquivalentdosis(leistungs)-Messgeräte für Neutronenstrahlung (IEC 61005:2014)

Instrumentation pour la radioprotection - Appareils de mesure de l'équivalent de dose ambiant neutron (ou de son débit d'équivalent de dose) (IEC 61005:2014)

L'IEC 61005:2014 spécifie les exigences pour les caractéristiques de performance des appareils de mesure de l'équivalent de dose ambiant neutron (ou de son débit d'équivalent de dose) et prescrit les méthodes d'essai mises en oeuvre pour démontrer la conformité à cette norme. La présente norme spécifie les caractéristiques générales, les procédures générales d'essai, les caractéristiques de rayonnement, les caractéristiques électriques, mécaniques, de sécurité et d'environnement ainsi que le certificat d'identification (voir 13.2). Elle spécifie également les exigences et les procédures d'essai pour les performances des alarmes des appareils de mesure de l'équivalent de dose ambiant neutron (ou de son débit d'équivalent de dose) qui en sont équipés. Cette nouvelle édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - l'énergie des neutrons supérieure des instruments couverts par la norme est portée à 20 MeV; - les exigences de variation de la réponse relative due à l'énergie des neutrons ont été modifiées; - un article relatif à l'additivité de la valeur indiquée (dose neutron/débit de dose) a été introduit; - les méthodes et exigences d'essai d'environnement se réfèrent à l'IEC 62706.

Oprema za zaščito pred sevanjem - Merilniki ekvivalentne doze v prostoru za nevtronsko sevanje (IEC 61005:2014)

Ta mednarodni standard se uporablja za sestave za merjenje ekvivalentne doze v prostoru zaradi nevtronskega sevanja v poljih, ki vsebujejo nevtrone z energijo, manjšo od 20 MeV, in ki vsebujejo vsaj:
a) sestav za zaznavanje, ki je lahko sestavljen na primer iz detektorja termalnih nevtronov in nabora medijev za ublažitev in absorpcijo nevtronov, ki obdajajo detektor;
b) merilni sestav z zaslonom za prikaz izmerjene količine, ki je lahko del enotnega sestava z detektorjem ali priključen nanj z upogljivim kablom.
Instrumenti z razponom energije do 20 MeV so zajeti v tem standardu. Če instrument zagotavlja tudi prikaz nevtronske doze, mora izpolnjevati zahteve glede nevtronske doze, ki so podane v tem standardu.

General Information

Status
Published
Publication Date
05-Feb-2017
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Feb-2017
Due Date
08-Apr-2017
Completion Date
06-Feb-2017

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SLOVENSKI STANDARD
SIST EN 61005:2017
01-april-2017
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SIST EN 61005:2005
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Radiation protection instrumentation - Neutron ambient dose equivalent (rate) meters

(IEC 61005:2014)
Strahlenschutz-Messgeräte - Umgebungsäquivalentdosis(leistungs)-Messgeräte für
Neutronenstrahlung (IEC 61005:2014)

Instrumentation pour la radioprotection - Appareils de mesure de l'équivalent de dose

ambiant neutron (ou de son débit d'équivalent de dose) (IEC 61005:2014)
Ta slovenski standard je istoveten z: EN 61005:2017
ICS:
13.280 Varstvo pred sevanjem Radiation protection
17.240 Merjenje sevanja Radiation measurements
SIST EN 61005:2017 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 61005:2017
---------------------- Page: 2 ----------------------
SIST EN 61005:2017
EUROPEAN STANDARD EN 61005
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2017
ICS 13.280 Supersedes EN 61005:2004
English Version
Radiation protection instrumentation - Neutron ambient dose
equivalent (rate) meters
(IEC 61005:2014 , modified)

Instrumentation pour la radioprotection - Appareils de Strahlenschutz-Messgeräte -

mesure de l'équivalent de dose ambiant neutron (ou de son Umgebungsäquivalentdosis(leistungs)-Messgeräte für

débit d'équivalent de dose) Neutronenstrahlung
(IEC 61005:2014 , modifiée) (IEC 61005:2014 , modifiziert)

This European Standard was approved by CENELEC on 2016-11-14. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving 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 three 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 electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 61005:2017 E
---------------------- Page: 3 ----------------------
SIST EN 61005:2017
EN 61005:2017
European foreword
This document (EN 61005:2017) consists of the text of IEC 61005:2014 prepared by

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:
(dop) 2017-11-14
• latest date by which the document has to be
implemented at national level
by publication of an identical
national standard or by endorsement
(dow) 2019-11-14
• latest date by which the national standards conflicting
with the document have to be withdrawn
This document supersedes EN 61005:2004.

Attention is drawn to the possibility that some of the elements of 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.
Endorsement notice

The text of the International Standard IEC 61005:2014 was approved by CENELEC as a European

Standard with agreed common modifications.
---------------------- Page: 4 ----------------------
SIST EN 61005:2017
EN 61005:2017
COMMON MODIFICATIONS
1 Scope
In the note, replace “realistic field” with “workplace field” twice.
3 Terms and definitions, abbreviations and symbols, quantities and units
3.1 Terms and definitions
3.1.17
minimal rated range of use
Replace “minimal” with “minimum” (in the term an in the note).
6 Radiation detection requirements
6.4 Variation of the response due to neutron energy
6.4.2 Requirements
In the first paragraph, delete “at least” twice.
And, add a dot above the H in the second term r .
H*(10)
6.4.3 Test method
In the second paragraph, add at the end of item b) “(one of them 144 keV)”.
252 241

And in item c), replace “one broad source (e.g. Cf or Am-Be)” with “two broad sources

252 252 241
(D2O-moderated Cf and e.g. Cf or Am-Be)”.

Replace the fourth paragraph starting with “The test distance should be at least 3 times …”

with “The test distance should be at least 3 times the sum of the largest linear dimension of

the source and the detector. In case of neutron fields according to ISO 8529, the scatter

contribution to the indicated value shall be determined in compliance with ISO 8529-2 and the

indicated value shall be corrected for scattered neutrons.”
In the note, replace “realistic work place” with “workplace”.
6.6 Variation of the response due to angle of incidence
6.6.3 Test method

Replace the fourth and fifth sentence starting with “The scatter contribution to the indicated

value …” with “In case of neutron fields according to ISO 8529, the scatter contribution to the

indicated value shall be determined in compliance with ISO 8529-2 and the indicated value

shall be corrected for scattered neutrons.”
6.13 Response to other external ionizing radiations

Replace the paragraph by “If the detector’s cover does not shield alpha and beta radiation,

the response due to alpha and beta radiation should be measured – and the results should be

documented.”
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SIST EN 61005:2017
EN 61005:2017
7 Additivity of indicated value
7.2 Test method
H +−HH
iK iL
iK+L
( )
Replace the equation with ∆=H
imix
iK+L
( )
9 Electrical characteristics
9.3 Power supplies – battery operation
9.3.3 Test method
9.3.3.3 Test using power supply
9.3.3.3.3 Interpretation of the results
Replace “0,91” with “0,9”.
Table 1 – Reference conditions and standard test conditions

In the first line (Reference neutron radiation), replace “L(p,n)” with “Li(p,n)” twice.

Table 2 – Radiation characteristics of ambient neutron dose (rate) equivalent meters

In the fourth line (Overload), replace “until unit is reset of switched off” with “until unit is reset

or is switched off”.
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SIST EN 61005:2017
EN 61005:2017
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu
Publication Year Title EN/HD Year
IEC 60050 Series International Electrotechnical Vocabulary - -
IEC 60086-1 2011 Primary batteries - EN 60086-1 2011
Part 1: General
IEC 60086-2 2011 Primary batteries - EN 60086-2 2011
Part 2: Physical and electrical
specifications
IEC 60529 - Degrees of protection provided by EN 60529 -
enclosures (IP Code)
IEC 61187 - Electrical and electronic measuring EN 61187 -
equipment - Documentation
IEC 62706 - Radiation protection instrumentation - - -
Environmental, electromagnetic and
mechanical performance requirements
ISO 8529-1 2001 Reference neutron radiations - - -
Part 1: Characteristics and methods of
production
ISO 8529-2 2000 Reference neutron radiations - - -
Part 2: Calibration fundamentals of
radiation protection devices related to the
basic quantities characterizing the radiation
field
ISO 8529-3 1998 Reference neutron radiations - - -
Part 3: Calibration of area and personal
dosimeters and determination of response
as a function of energy and angle of
incidence
Superseded by EN 60086-1:2015 (IEC 60086-1:2015): DOW=2018-09-01.
Superseded by EN 60086-2:2016 (IEC 60086-2:2015): DOW=2018-12-03.
---------------------- Page: 7 ----------------------
SIST EN 61005:2017
EN 61005:2017
Publication Year Title EN/HD Year
ISO 11929 2010 Determination of the characteristic limits - -
(decision threshold, detection limit and
limits of the confidence interval) for
measurements of ionizing radiation -
Fundamentals and application
ISO 12789-1 2008 Reference radiation fields - Simulated - -
workplace neutron fields -
Part 1: Characteristics and methods of
production
ISO 12789-2 2008 Reference radiation fields - Simulated - -
workplace neutron fields -
Part 2: Calibration fundamentals related to
the basic quantities
---------------------- Page: 8 ----------------------
SIST EN 61005:2017
IEC 61005
Edition 3.0 2014-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation – Neutron ambient dose equivalent
(rate) meters
Instrumentation pour la radioprotection – Appareils de mesure de l'équivalent
de dose ambiant neutron (ou de son débit d'équivalent de dose)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XA
ICS 13.280 ISBN 978-2-8322-1676-7

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 9 ----------------------
SIST EN 61005:2017
– 2 – IEC 61005:2014 © IEC 2014
CONTENTS

FOREWORD ........................................................................................................................... 6

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms and definitions, abbreviations and symbols, quantities and units ........................... 9

3.1 Terms and definitions.............................................................................................. 9

3.2 Test nomenclature ................................................................................................ 15

3.3 Abbreviations and symbols ................................................................................... 15

3.4 Quantities and units .............................................................................................. 16

4 General test procedure .................................................................................................. 16

4.1 Test requirements ................................................................................................. 16

4.2 Tests performed with variation of influence quantities ........................................... 16

4.2.1 General ......................................................................................................... 16

4.2.2 Tests for influence quantities of type F .......................................................... 16

4.2.3 Tests for influence quantities of type S .......................................................... 17

4.3 Consideration of non-linearity ............................................................................... 17

4.4 Consideration of several detectors or signals in a dose (rate) meter ..................... 17

4.5 Statistical fluctuations ........................................................................................... 17

4.6 Radiation sources ................................................................................................. 17

4.7 Work place neutron fields ..................................................................................... 18

5 General requirements .................................................................................................... 18

5.1 Summary of requirements ..................................................................................... 18

5.2 General characteristics ......................................................................................... 18

5.2.1 Effective range of measurement .................................................................... 18

5.2.2 Minimum range of measurement .................................................................... 19

5.2.3 Rated range of an influence quantity ............................................................. 19

5.2.4 Minimum rated range of influence quantity ..................................................... 19

5.2.5 Indication of the assembly ............................................................................. 19

5.3 Mechanical characteristics .................................................................................... 19

5.3.1 IP classification ............................................................................................. 19

5.3.2 Assembly labels and markings ....................................................................... 19

5.3.3 Ease of decontamination ............................................................................... 20

5.4 Interface requirements .......................................................................................... 20

5.5 Algorithm to evaluate the indicated value .............................................................. 20

6 Radiation detection requirements .................................................................................. 20

6.1 General ................................................................................................................. 20

6.2 Consideration of the uncertainty of the conventional quantity value ....................... 20

6.3 Constancy of the dose rate response, dose dependence and statistical

fluctuations ........................................................................................................... 20

6.3.1 General ......................................................................................................... 20

6.3.2 Requirements ................................................................................................ 21

6.3.3 Test method using sources ............................................................................ 21

6.3.4 Interpretation of the results of the test using sources ..................................... 21

6.3.5 Test procedure with variation of the calibration distance ................................ 21

6.3.6 Equivalent electrical test method ................................................................... 22

6.3.7 Interpretation of the equivalent electrical test results ..................................... 22

6.4 Variation of the response due to neutron energy ................................................... 22

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SIST EN 61005:2017
IEC 61005:2014 © IEC 2014 – 3 –

6.4.1 General ......................................................................................................... 22

6.4.2 Requirements ................................................................................................ 23

6.4.3 Test method .................................................................................................. 23

6.4.4 Interpretation of the results ............................................................................ 24

6.5 Monte Carlo calculation of the instrument response .............................................. 24

6.5.1 General ......................................................................................................... 24

6.5.2 Requirements ................................................................................................ 24

6.5.3 Test method .................................................................................................. 24

6.5.4 Interpretation of the results ............................................................................ 24

6.6 Variation of the response due to angle of incidence .............................................. 25

6.6.1 General ......................................................................................................... 25

6.6.2 Requirements ................................................................................................ 25

6.6.3 Test method .................................................................................................. 25

6.6.4 Interpretation of the results ............................................................................ 25

6.7 Overload characteristics ....................................................................................... 25

6.7.1 Dose equivalent meters ................................................................................. 25

6.7.2 Dose rate equivalent meters .......................................................................... 26

6.8 Response time ...................................................................................................... 26

6.8.1 Requirements ................................................................................................ 26

6.8.2 Test method .................................................................................................. 27

6.8.3 Interpretation of the results ............................................................................ 27

6.9 Relationship between response time and statistical fluctuations ............................ 27

6.10 Dose equivalent rate alarm ................................................................................... 28

6.10.1 Requirements ................................................................................................ 28

6.10.2 Test method .................................................................................................. 28

6.10.3 Interpretation of the results ............................................................................ 28

6.11 Dose equivalent alarm .......................................................................................... 28

6.11.1 Requirements ................................................................................................ 28

6.11.2 Test method .................................................................................................. 28

6.11.3 Interpretation of the results ............................................................................ 28

6.12 Response to photon radiation ............................................................................... 29

6.12.1 Requirements ................................................................................................ 29

6.12.2 Test method .................................................................................................. 29

6.12.3 Interpretation of the results ............................................................................ 29

6.13 Response to other external ionizing radiations ...................................................... 29

7 Additivity of indicated value ........................................................................................... 30

7.1 Requirements ....................................................................................................... 30

7.2 Test method .......................................................................................................... 30

7.3 Interpretation of the results ................................................................................... 30

8 Software ........................................................................................................................ 31

8.1 General ................................................................................................................. 31

8.2 Requirements ....................................................................................................... 31

8.2.1 General requirements .................................................................................... 31

8.2.2 Design and structure of the software.............................................................. 31

8.2.3 Protection of the software and data ............................................................... 31

8.2.4 Documentation .............................................................................................. 32

8.3 Test method .......................................................................................................... 32

8.3.1 General ......................................................................................................... 32

8.3.2 Testing the documentation ............................................................................. 32

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SIST EN 61005:2017
– 4 – IEC 61005:2014 © IEC 2014

9 Electrical characteristics ................................................................................................ 33

9.1 Stability of zero indication with time ...................................................................... 33

9.1.1 Requirements ................................................................................................ 33

9.1.2 Test method .................................................................................................. 33

9.1.3 Interpretation of the results ............................................................................ 33

9.2 Warm-up time ....................................................................................................... 33

9.2.1 Requirements ................................................................................................ 33

9.2.2 Test method .................................................................................................. 33

9.2.3 Interpretation of the results ............................................................................ 33

9.3 Power supplies – battery operation ....................................................................... 33

9.3.1 General ......................................................................................................... 33

9.3.2 Requirements ................................................................................................ 34

9.3.3 Test method .................................................................................................. 34

9.4 Power supplies – Mains operations ....................................................................... 35

9.4.1 Requirements ................................................................................................ 35

9.4.2 Test method .................................................................................................. 35

9.4.3 Interpretation of the results ............................................................................ 36

10 Environmental requirements .......................................................................................... 36

10.1 General ................................................................................................................. 36

10.2 Ambient temperature ............................................................................................ 36

10.3 Temperature shock ............................................................................................... 36

10.4 Relative humidity .................................................................................................. 37

10.5 Atmospheric pressure ........................................................................................... 37

10.6 Protection against moisture and dust (IP classification) ......................................... 37

10.7 Storage and transport ........................................................................................... 37

11 Mechanical requirements ............................................................................................... 37

11.1 General ................................................................................................................. 37

11.2 Drop test ............................................................................................................... 38

11.3 Vibration test ........................................................................................................ 38

11.4 Microphonics impact ............................................................................................. 38

11.5 Mechanical shock ................................................................................................. 38

12 Electromagnetic requirements ....................................................................................... 39

12.1 General ................................................................................................................. 39

12.2 Emission of electromagnetic radiation ................................................................... 39

12.3 Electrostatic discharge .......................................................................................... 39

12.4 Radio frequency disturbance ................................................................................. 39

12.5 Magnetic fields ...................................................................................................... 39

12.6 Alternating current powered equipment requirements ............................................ 40

13 Documentation .............................................................................................................. 40

13.1 Operation and maintenance manual ...................................................................... 40

13.2 Identification certificate ......................................................................................... 40

13.3 Type test report .................................................................................................... 41

Annex A (informative) Neutron fluence-to-ambient dose equivalent conversion

coefficients ........................................................................................................................... 47

Bibliography .......................................................................................................................... 50

Figure A.1 – Neutron fluence-to-ambient dose equivalent conversion coefficients for

mono-energetic neutrons [5] ................................................................................................. 48

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SIST EN 61005:2017
IEC 61005:2014 © IEC 2014 – 5 –

Table 1 – Reference conditions and standard test conditions ................................................ 41

Table 2 – Radiation characteristics of ambient neutron dose (rate) equivalent meters ........... 42

Table 3 – Values of c and c for w different dose rate values and n indications for

1 2

each dose rate value [8] ....................................................................................................... 43

Table 4 – Electrical and environmental characteristics of ambient dose equivalent

(rate) meters ......................................................................................................................... 44

Table 5 – Maximum values of deviation due to mechanical requirements .............................. 44

Table 6 – Maximum values of deviation due to electromagnetic disturbances ....................... 45

Table 7 – Emission frequency range .................................................................................... 45

Table 8 – Symbols and abbreviations used in this standard .................................................. 46

Table A.1 – Neutron fluence-to-ambient dose equivalent conversion coefficients for

mono-energetic neutrons ([5],[6]) .......................................................................................... 47

Table A.2 – Neutron fluence-to-ambient dose equivalent conversion coefficients for

the neutron reference radiation sources ([5] and ISO 8529-3) ............................................... 49

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SIST EN 61005:2017
– 6 – IEC 61005:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIATION PROTECTION INSTRUMENTATION –
NEUTRON AMBIENT DOSE EQUIVALENT (RATE) METERS
FOREWORD
1) The International Electrotechnical C
...

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