IEC 62755:2012

IEC 62755 ®
Edition 1.1 2020-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Radiation protection instrumentation – Data format for radiation instruments
used in the detection of illicit trafficking of radioactive materials

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IEC 62755 ®
Edition 1.1 2020-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Radiation protection instrumentation – Data format for radiation instruments

used in the detection of illicit trafficking of radioactive materials

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.280 ISBN 978-2-8322-8650-0

IEC 62755 ®
Edition 1.1 2020-07
REDLINE VERSION
colour
inside
Radiation protection instrumentation – Data format for radiation instruments
used in the detection of illicit trafficking of radioactive materials

– 2 – IEC 62755:2012+AMD1:2020 CSV
© IEC 2020
CONTENTS
FOREWORD . 9
1 Scope and object . 11
2 Normative references . 11
3 Terms, definitions, abbreviations, quantities and units . 12
3.1 Terms and definitions . 12
3.2 Abbreviations . 16
3.3 Quantities and units . 17
4 General characteristics . 17
4.1 Design principles used in this International Standard . 17
4.2 Characteristics of the data format . 18
4.3 General description of the N42 data format . 18
4.3.1 Basic concepts . 18
4.3.2 Example data documents . 21
5 Requirements . 22
5.1 Data types . 22
5.1.1 Standard data types . 22
5.1.2 Derived data types. 23
5.1.3 Nuclide name format . 23
5.2 Code lists . 25
5.2.1 General . 25
5.2.2 AnalysisResultStatusCode . 25
5.2.3 CompressionCode . 25
5.2.4 FaultSeverityCode . 25
5.2.5 ImagePerspectiveCode . 26
5.2.6 MeasurementClassCode . 26
5.2.7 MultimediaDeviceCategoryCode . 26
5.2.8 NuclideSourceGeometryCode . 27
5.2.9 RadAlarmCategoryCode . 27
5.2.10 RadDetectorCategoryCode . 27
5.2.11 RadDetectorKindCode . 27
5.2.12 RadInstrumentClassCode . 28
5.2.13 RadInstrumentModeCode . 28
5.3 Schema outline . 29
5.4 Element descriptions . 45
5.4.1 . 45
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5.5 Attribute reference . 110
5.5.1 compressionCode . 110
5.5.2 datum . 110
5.5.3 derivedDataReferences . 110
5.5.4 energyCalibrationReference . 110
5.5.5 energyWindowsReference . 111
5.5.6 fullEnergyPeakEfficiencyCalibrationReference. 111
5.5.7 FWHMCalibrationReference . 111
5.5.8 groupOutOfLimits . 111
5.5.9 id . 111
5.5.10 intrinsicDoubleEscapePeakEfficiencyCalibrationReference . 111
5.5.11 intrinsicFullEnergyPeakEfficiencyCalibrationReference . 112
5.5.12 intrinsicSingleEscapePeakEfficiencyCalibrationReference . 112
5.5.13 n42DocDateTime . 112
5.5.14 n42DocUUID . 112
5.5.15 originReference . 112
5.5.16 radDetectorInformationReference . 112
5.5.17 radDetectorInformationReferences . 112
5.5.18 radInstrumentInformationReference . 113
5.5.19 radItemInformationReference . 113
5.5.20 radItemInformationReferences . 113
5.5.21 radMeasurementGroupReferences . 113
5.5.22 radMeasurementGroupUUID . 113
5.5.23 radMeasurementReferences . 113
5.5.24 radRawDoseRateReferences . 113
5.5.25 radRawExposureRateReferences . 114
5.5.26 radRawGrossCountsReferences . 114
5.5.27 radRawSpectrumReferences . 114
5.5.28 radRawTotalDoseReferences . 114
5.5.29 radRawTotalExposureReferences . 114
5.5.30 sequenceNumber . 114
5.5.31 totalEfficiencyCalibrationReference . 115
5.5.32 units . 115
5.5.33 valueDateTime . 115
5.5.34 valueOutOfLimits . 115
5.6 Possible data elements by class of radiation measurement instrument . 115
Annex A (normative) N42 XML Schema . 116

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© IEC 2020
Annex B (informative) Example: A simple spectrometer . 172
Annex C (informative) Example: A radionuclide identifier . 174
Annex D (informative) Example: A gross counting portal monitor . 178
Annex E (informative) Example: A spectroscopic radiation portal monitor . 185
Annex F (informative) Example: A personal radiation detector . 199
Annex G (informative) Example: A mobile spectroscopic instrument . 202
Annex H (informative) Example: A neutron handheld . 206
Annex I (informative) Example: A spectroscopic personal radiation detector . 208
Annex J (informative) Conversion factors for exposure and dose equivalent . 212
Annex K (normative) Description of location and orientation. 213
Annex L (informative) Creating extensions to the standard. 217
Annex M (informative) Supplemental data validation rules . 221
Annex N (informative) N42 ISO Schematron schema . 225
Bibliography . 234

Figure K.1 – Orientation of an object . 214
Figure K.2 – Location of an object with respect to a reference point . 215

Table J.1 – Roentgen to Gy conversion equations for air . 212
Table J.2 – Conversion coefficients from air-kerma to H*(10) . 212
Table M.1 – Universal data validation rules . 221

© IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIATION PROTECTION INSTRUMENTATION –
DATA FORMAT FOR RADIATION INSTRUMENTS USED IN THE DETECTION
OF ILLICIT TRAFFICKING OF RADIOACTIVE MATERIALS

FOREWORD
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This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 62755 edition 1.1 contains the first edition (2012-10) [documents 45B/739/FDIS and
45B/748/RVD] and its amendment 1 (2020-07) [documents 45B/953/CDV and
45B/964/RVC].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions are in green text, deletions are in strikethrough
red text. A separate Final version with all changes accepted is available in this
publication.
– 10 – IEC 62755:2012+AMD1:2020 CSV
© IEC 2020
International Standard IEC 62755 has been prepared by subcommittee 45B: Radiation
protection instrumentation, of IEC technical committee 45: Nuclear instrumentation.
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© IEC 2020
RADIATION PROTECTION INSTRUMENTATION –
DATA FORMAT FOR RADIATION INSTRUMENTS USED IN THE DETECTION
OF ILLICIT TRAFFICKING OF RADIOACTIVE MATERIALS

1 Scope and object
The purpose of this International Standard is to provide a uniform format for data to be output
from radiation measurement instruments for use in detection of illicit trafficking of radioactive
materials. This enables interpretation of data without reference to manufacturer’s
documentation.
This standard specifies the data format used for both required and optional data available at
the output of radiation measurement instruments that are used for the detection of illicit
trafficking of radioactive materials. The performance requirements for these types of radiation
measurement instruments are described in other standards such as IEC 62401, IEC 62533,
IEC 62694, IEC 62244, IEC 62327, IEC 62484, and IEC 62618 [26] .
The output c
...