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IEC TR 62461:2015

Current
Current

The latest, up-to-date edition.

Radiation protection instrumentation - Determination of uncertainty in measurement
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

01-23-2015

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 List of symbols
5 The GUM and the GUM S1 concept
6 Results below the decision threshold of the measuring
  device
7 Overview of the annexes
Annex A (informative) - Example of an uncertainty analysis
        for a measurement with an electronic ambient dose
        equivalent rate meter according to IEC 60846-1:
Annex B (informative) - Example of an uncertainty analysis
        for a measurement with a passive integrating dosimetry
        system according to IEC 62387:
Annex C (informative) - Example of an uncertainty analysis
        for a measurement with an electronic direct reading
        neutron ambient dose equivalent meter according to
        IEC 61005:2003
Annex D (informative) - Example of an uncertainty analysis
        for a calibration of radon activity monitor according
        to the IEC 61577 series
Annex E (informative) - Example of an uncertainty analysis for
        a measurement of surface emission rate with a
        contamination meter according to IEC 60325:2002
Bibliography

IEC TR 62461:2015(E) gives guidelines for the application of the uncertainty analysis according to ISO/IEC Guide 98-3:2008 and its Supplement 1:2008 for measurements covered by standards in the field of radiation protection instrumentation. It does not include the uncertainty associated with the concept of the measuring quantity. This Technical Report explains the principles of the ISO/IEC Guide 98-3:2008 (GUM), its Supplement 1:2008 (GUM S1) and the special considerations necessary for radiation protection at an example taken from individual dosimetry of external radiation. This Technical Report is intended to assist the understanding of the ISO/IEC Guide 98-3:2008 (GUM), its Supplement 1: 2008 (GUM S1). The main changes with respect to the previous edition are as follows:
- add to the analytical method for the determination of uncertainty the Monte Carlo method for the determination of uncertainty according to supplement 1 of the Guide to the Expression of uncertainty in measurement (GUM S1), and
- add a very simple method to judge whether a measured result is significantly different from zero based on ISO 11929.

Committee
TC 45/SC 45B
DevelopmentNote
Stability Date: 2018. (01/2015)
DocumentType
Technical Report
Pages
60
PublisherName
International Electrotechnical Committee
Status
Current
Supersedes

13/30244707 DC : 0 BS IEC 61005 ED 3.0 - RADIATION PROTECTION INSTRUMENTATION - NEUTRON AMBIENT DOSE EQUIVALENT (RATE) METERS
09/30118876 DC : 0 ISO 20785-2 - DOSIMETRY FOR EXPOSURES TO COSMIC RADIATION IN CIVILIAN AIRCRAFT - PART 2: CHARACTERIZATION OF INSTRUMENT RESPONSE
16/30332952 DC : 0 BS ISO 14146 - RADIATION PROTECTION - CRITERIA AND PERFORMANCE LIMITS FOR THE PERIODIC EVALUATION OF DOSIMETRY SERVICES
BS ISO 20785-2 : 2011 DOSIMETRY FOR EXPOSURES TO COSMIC RADIATION IN CIVILIAN AIRCRAFT - PART 2: CHARACTERIZATION OF INSTRUMENT RESPONSE
07/30150067 DC : 0 BS IEC 60846-1 - RADIATION PROTECTION INSTRUMENTATION - AMBIENT AND/OR DIRECTIONAL DOSE EQUIVALENT (RATE) METERS AND/OR MONITORS FOR BETA, X AND GAMMA RADIATION - PART 1: PORTABLE WORKPLACE AND ENVIRONMENTAL METERS AND MONITORS
BS EN 62387:2016 Radiation protection instrumentation. Passive integrating dosimetry systems for individual, workplace and environmental monitoring of photon and beta radiation
EN ISO 20785-2:2017 Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 2: Characterization of instrument response (ISO 20785-2:2011)
BS EN ISO 20785-2:2017 Dosimetry for exposures to cosmic radiation in civilian aircraft Characterization of instrument response
I.S. EN 62387-1:2012 RADIATION PROTECTION INSTRUMENTATION - PASSIVE INTEGRATING DOSIMETRY SYSTEMS FOR ENVIRONMENTAL AND PERSONAL MONITORING - PART 1: GENERAL CHARACTERISTICS AND PERFORMANCE REQUIREMENTS (IEC 62387-1:2007 (MOD))
EN 62387-1:2012 Radiation protection instrumentation - Passive integrating dosimetry systems for environmental and personal monitoring - Part 1: General characteristics and performance requirements
EN 62387 : 2016 RADIATION PROTECTION INSTRUMENTATION - PASSIVE INTEGRATING DOSIMETRY SYSTEMS FOR INDIVIDUAL, WORKPLACE AND ENVIRONMENTAL MONITORING OF PHOTON AND BETA RADIATION (IEC 62387:2012, MODIFIED)
11/30245877 DC : 0 BS EN 62387 - RADIATION PROTECTION INSTRUMENTATION - PASSIVE INTEGRATING DOSIMETRY SYSTEMS FOR PERSONAL AND ENVIRONMENTAL MONITORING
I.S. EN 61005:2017 RADIATION PROTECTION INSTRUMENTATION - NEUTRON AMBIENT DOSE EQUIVALENT (RATE) METERS
BS EN 61005:2004 Radiation protection instrumentation. Neutron ambient dose equivalent (rate) meters
BS ISO 20785-1 : 2012 DOSIMETRY FOR EXPOSURES TO COSMIC RADIATION IN CIVILIAN AIRCRAFT - PART 1: CONCEPTUAL BASIS FOR MEASUREMENTS
CEI EN 61526 : 2013 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
IEC 61526:2010 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
IEC 61005:2014 Radiation protection instrumentation - Neutron ambient dose equivalent (rate) meters
DIN ISO 18589-1:2009-02 MEASUREMENT OF RADIOACTIVITY IN THE ENVIRONMENT - SOIL - PART 1: GENERAL GUIDELINES AND DEFINITIONS
I.S. EN 60846-1:2014 RADIATION PROTECTION INSTRUMENTATION - AMBIENT AND/OR DIRECTIONAL DOSE EQUIVALENT (RATE) METERS AND/OR MONITORS FOR BETA, X AND GAMMA RADIATION - PART 1: PORTABLE WORKPLACE AND ENVIRONMENTAL METERS AND MONITORS
ISO 20785-1:2012 Dosimetry for exposures to cosmic radiation in civilian aircraft Part 1: Conceptual basis for measurements
DIN ISO 18589-3:2009-02 MEASUREMENT OF RADIOACTIVITY IN THE ENVIRONMENT - SOIL - PART 3: MEASUREMENT OF GAMMA-EMITTING RADIONUCLIDES
DIN ISO 20785-2:2016-08 Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 2: Characterization of instrument response (ISO 20785-2:2011)
IEC 60846-1:2009 Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation - Part 1: Portable workplace and environmental meters and monitors
DIN EN ISO 29661 : 2018 COR 1 2018 REFERENCE RADIATION FIELDS FOR RADIATION PROTECTION - DEFINITIONS AND FUNDAMENTAL CONCEPTS (ISO 29661:2012, INCLUDING AMD 1:2015)
17/30309590 DC : 0 BS IEC 61563 ED 2.0 - RADIATION PROTECTION INSTRUMENTATION - EQUIPMENT FOR MEASURING SPECIFIC ACTIVITY OF GAMMA-EMITTING RADIONUCLIDES IN FOODSTUFFS
BS EN 62387-1:2012 Radiation protection instrumentation. Passive integrating dosimetry systems for environmental and personal monitoring General characteristics and performance requirements
08/30157876 DC : 0
17/30347905 DC : 0 BS ISO 11929-1 - DETERMINATION OF THE CHARACTERISTIC LIMITS (DECISION THRESHOLD, DETECTION LIMIT AND LIMITS OF THE COVERAGE INTERVAL) FOR MEASUREMENTS OF IONIZING RADIATION - FUNDAMENTALS AND APPLICATION - PART 1: ELEMENTARY APPLICATIONS
BS EN 61526:2013 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
BS EN ISO 20785-1:2017 Dosimetry for exposures to cosmic radiation in civilian aircraft Conceptual basis for measurements
IEC 62387-1:2007 Radiation protection instrumentation - Passive integrating dosimetry systems for environmental and personal monitoring - Part 1: General characteristics and performance requirements
ISO 20785-2:2011 Dosimetry for exposures to cosmic radiation in civilian aircraft Part 2: Characterization of instrument response
EN 61526:2013 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
BS EN 60846-1:2014 Radiation protection instrumentation. Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation Portable workplace and environmental meters and monitors
DIN ISO 20785-2 E : 2016 DOSIMETRY FOR EXPOSURES TO COSMIC RADIATION IN CIVILIAN AIRCRAFT - PART 2: CHARACTERIZATION OF INSTRUMENT RESPONSE (ISO 20785-2:2011)
VDE 0412-661 : 2018 COR 1 2018 REFERENCE RADIATION FIELDS FOR RADIATION PROTECTION - DEFINITIONS AND FUNDAMENTAL CONCEPTS (ISO 29661:2012, INCLUDING AMD 1:2015)
DIN ISO 18589-2:2009-02 MEASUREMENT OF RADIOACTIVITY IN THE ENVIRONMENT - SOIL - PART 2: GUIDANCE FOR THE SELECTION OF THE SAMPLING STRATEGY, SAMPLING AND PRE-TREATMENT OF SAMPLES
I.S. EN ISO 20785-1:2017 DOSIMETRY FOR EXPOSURES TO COSMIC RADIATION IN CIVILIAN AIRCRAFT - PART 1: CONCEPTUAL BASIS FOR MEASUREMENTS (ISO 20785-1:2012)
I.S. EN ISO 20785-2:2017 DOSIMETRY FOR EXPOSURES TO COSMIC RADIATION IN CIVILIAN AIRCRAFT - PART 2: CHARACTERIZATION OF INSTRUMENT RESPONSE (ISO 20785-2:2011)
I.S. EN 62387:2016 RADIATION PROTECTION INSTRUMENTATION - PASSIVE INTEGRATING DOSIMETRY SYSTEMS FOR INDIVIDUAL, WORKPLACE AND ENVIRONMENTAL MONITORING OF PHOTON AND BETA RADIATION
UNE-EN ISO 20785-2:2018 Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 2: Characterization of instrument response (ISO 20785-2:2011)
EN ISO 20785-1:2017 Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 1: Conceptual basis for measurements (ISO 20785-1:2012)
I.S. EN 61526:2013 RADIATION PROTECTION INSTRUMENTATION - MEASUREMENT OF PERSONAL DOSE EQUIVALENTS H[P](10) AND H[P](0,07) FOR X, GAMMA, NEUTRON AND BETA RADIATIONS - DIRECT READING PERSONAL DOSE EQUIVALENT METERS (IEC 61526:2010 (MOD))
EN 61005:2017 Radiation protection instrumentation - Neutron ambient dose equivalent (rate) meters
EN 60846-1:2014 Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation - Part 1: Portable workplace and environmental meters and monitors

IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
ISO/IEC Guide 98-1:2009 Uncertainty of measurement — Part 1: Introduction to the expression of uncertainty in measurement
IEC 61005:2014 Radiation protection instrumentation - Neutron ambient dose equivalent (rate) meters
IEC 60846-1:2009 Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation - Part 1: Portable workplace and environmental meters and monitors
IEC 61577-1:2006 Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 1: General principles
IEC 61577-2:2014 Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 2: Specific requirements for <sup>222</sup>Rn and <sup>220</sup>Rn measuring instruments
ISO 21909:2005 Passive personal neutron dosemeters Performance and test requirements
IEC 60325:2002 Radiation protection instrumentation - Alpha, beta and alpha/beta (beta energy >60 keV) contamination meters and monitors
IEC 61526:2010 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
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
IEC 61577-3:2011 Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments
IEC 60050-300:2001 International Electrotechnical Vocabulary (IEV) - Part 300: Electrical and electronic measurements and measuring instruments - Part 311: General terms relating to measurements - Part 312: General terms relating to electrical measurements - Part 313: Types of electrical measuring instruments - Part 314: Specific terms according to the type of instrument
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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