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IEC 62694:2022

(Main)

Radiation protection instrumentation - Backpack-type radiation detector (BRD) for the detection of illicit trafficking of radioactive material

Radiation protection instrumentation - Backpack-type radiation detector (BRD) for the detection of illicit trafficking of radioactive material

IEC 62694:2022 applies to backpack-type radiation detectors (BRDs) that are primarily used for the detection of illicit trafficking of radioactive material. BRDs are portable instruments designed to be worn during use. BRDs detect gamma radiation and may include neutron detection and the ability to identify gamma-ray emitting radionuclides.
This document establishes the operational and testing requirements associated with radiation measurements and the expected electrical, mechanical, and environmental conditions while in use.
This second edition cancels and replaces the first edition, published in 2014. This edition includes the following significant technical changes with respect to the previous edition:
a. making the standard consistent with the new standards for detection of illicit trafficking of radioactive material;
b. creating unformed functionality test for all environmental, electromagnetic and mechanical tests and a requirement for the coefficient of variation of each nominal mean reading;
c. revised radiological requirements including the simplification of radionuclide identification acceptance criteria;
d. reference to IEC 62706 for the environmental, electromagnetic and mechanical test conditions.

Instrumentation pour la radioprotection - Détecteur de rayonnement de type sac à dos (BRD) pour la détection du trafic illicite des matières radioactives

IEC 62694:2022 s'applique aux détecteurs de rayonnement de type sac à dos (BRD, Backpack-type Radiation Detector) essentiellement destinés à la détection du trafic illicite des matières radioactives. Les BRD sont des instruments portables conçus pour être portés pendant leur utilisation. Les BRD ont pour objet de détecter les rayonnements gamma; ils peuvent intégrer une fonction de détection des rayonnements neutroniques et être capables d'identifier les radionucléides émetteurs de rayons gamma.
Le présent document établit les exigences fonctionnelles et d'essai associées au mesurage des rayonnements, ainsi que les conditions électriques, mécaniques et ambiantes attendues lors de l'utilisation de ces détecteurs.
Cette deuxième édition annule et remplace la première édition parue en 2014. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a. alignement de la norme sur les nouvelles normes relatives à la détection du trafic illicite des matières radioactives;
b. création d'un essai de fonctionnalité brut pour l'ensemble des essais électromagnétiques, mécaniques et d'environnement, et ajout d'une exigence pour le coefficient de variation de chaque relevé de moyenne nominal;
c. révision des exigences radiologiques, dont la simplification des critères d'acceptation pour l'identification des radionucléides;
d. référence à l'IEC 62706 pour les conditions d'essais électromagnétiques, mécaniques et d'environnement.

General Information

Status
Published
Publication Date
28-Nov-2022
ICS
13.280 - Radiation protection
Technical Committee
SC 45B - Radiation protection instrumentation
Drafting Committee
WG 15 - TC 45/SC 45B/WG 15
Current Stage
PPUB - Publication issued
Start Date
16-Dec-2022
Completion Date
29-Nov-2022
Ref Project

Relations

Revises
IEC 62694:2014 - Radiation protection instrumentation - Backpack-type radiation detector (BRD) for the detection of illicit trafficking of radioactive material
Effective Date
05-Sep-2023

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IEC 62694:2022 - Radiation protection instrumentation - Backpack-type radiation detector (BRD) for the detection of illicit trafficking of radioactive material Released:11/29/2022IEC 62694:2022 - Radiation protection instrumentation - Backpack-type radiation detector (BRD) for the detection of illicit trafficking of radioactive material Released:11/29/2022
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IEC 62694:2022 - Radiation protection instrumentation - Backpack-type radiation detector (BRD) for the detection of illicit trafficking of radioactive material Released:11/29/2022
English and French language
74 pages
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IEC 62694 ®
Edition 2.0 2022-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Radiation protection instrumentation – Backpack-type radiation detector (BRD)
for the detection of illicit trafficking of radioactive material

Instrumentation pour la radioprotection – Détecteur de rayonnement de type sac
à dos (BRD) pour la détection du trafic illicite des matières radioactives

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IEC 62694 ®
Edition 2.0 2022-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Radiation protection instrumentation – Backpack-type radiation detector (BRD)

for the detection of illicit trafficking of radioactive material

Instrumentation pour la radioprotection – Détecteur de rayonnement de type

sac à dos (BRD) pour la détection du trafic illicite des matières radioactives

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.280 ISBN 978-2-8322-6053-1

– 2 – IEC 62694:2022 © IEC 2022
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions, abbreviated terms and symbols, quantities and units . 9
3.1 Terms and definitions . 9
3.2 Abbreviated terms and symbols . 10
3.3 Quantities and units . 10
4 General test procedure . 11
4.1 General . 11
4.2 Standard test conditions . 11
4.3 Uncertainties. 11
4.4 Statistical fluctuations . 11
4.5 Background radiation during testing . 12
4.6 Radiation sources . 12
4.7 Special nuclear material (SNM) and depleted uranium (DU) sources . 12
4.8 BRD set up . 12
4.9 Speed of moving sources including scaling of speed and distance . 14
4.10 Functionality tests . 14
4.10.1 General . 14
4.10.2 Pre-test measurements . 15
4.10.3 Intermediate-test measurements . 15
4.10.4 Post-test measurements . 16
4.10.5 Acceptance criteria . 16
5 General requirements . 17
5.1 Design requirements . 17
5.2 Markings . 17
5.3 Switches . 17
5.4 Effective range of dose rate measurement – photons . 17
5.5 Explosive atmospheres . 17
5.6 Power supply . 17
5.6.1 Requirements . 17
5.6.2 Method of test. 17
5.7 Data format . 18
5.7.1 Requirements . 18
5.7.2 Method of test. 18
5.8 Data transfer . 18
5.9 User interface – Indications . 19
5.10 Alarms . 19
5.10.1 Alarm indication . 19
5.10.2 Personal protection alarm . 19
5.10.3 Audible indication for searching . 19
5.10.4 Audible alarms . 19
6 Radiation detection requirements . 19
6.1 False alarm test . 19
6.1.1 Requirements . 19

6.1.2 Method of test. 19
6.2 Alarm response to gamma radiation . 20
6.2.1 Requirements . 20
6.2.2 Method of test. 20
6.3 Alarm response to neutron radiation, if provided . 20
6.3.1 Requirements . 20
6.3.2 Method of test. 20
6.4 Personal radiation protection alarm and response time . 21
6.4.1 Requirements . 21
6.4.2 Method of test. 21
6.5 Gamma-ray ambient dose equivalent rate indication . 21
6.5.1 Requirements . 21
6.5.2 Method of test. 21
6.6 Over range test . 21
6.6.1 Requirements . 21
6.6.2 Method of test. 21
6.7 Neutron indication in the presence of photons, if applicable . 22
6.7.1 Requirements . 22
6.7.2 Method of test. 22
6.8 Detection of gradually increasing radiation levels . 22
6.8.1 Requirements . 22
6.8.2 Method of test. 22
6.9 Radionuclide identification, when provided . 23
6.9.1 Single radionuclide identification . 23
6.9.2 Simultaneous identification . 24
6.9.3 False identification.
...

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