oSIST prEN IEC 63121:2021

Radiation protection instrumentation - Vehicle-mounted mobile systems for the detection of illicit trafficking of radioactive materials

This document applies to vehicle-mounted mobile systems (also known as mobile systems or mobile monitors) that are used for the detection of illicit trafficking of radioactive materials; these instruments may also be used for protection of major public events and for rapid screening of large areas. These vehicle-mounted mobile systems consist of one or more radiation detectors mounted in a vehicle, e.g., car or van, which travels predominantly on public roads.

Strahlenschutz-Messgeräte - Fahrzeuggestützte mobile Systeme zum Aufspüren von unerlaubt transportiertem radioaktivem Material

Instrumentation pour la radioprotection - Systèmes mobiles montés sur véhicules pour la détection du trafic illicite des matières radioactives

Instrumenti za zaščito pred sevanjem - Vozila z vgrajenimi mobilnimi sistemi za odkrivanje nedovoljene trgovine z radioaktivnimi snovmi

General Information

• Status: Not Published
• Public Enquiry End Date: 16-Sep-2021
• ICS: 13.280 - Radiation protection
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 01-Jul-2021
• Due Date: 18-Nov-2021
• Ref Project: prEN IEC 63121 - Radiation protection instrumentation - Vehicle-mounted mobile systems for the detection of illicit trafficking of radioactive materials

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN IEC 63121:2021
01-september-2021
Instrumenti za zaščito pred sevanjem - Vozila z vgrajenimi mobilnimi sistemi za
odkrivanje nedovoljene trgovine z radioaktivnimi snovmi

Radiation protection instrumentation - Vehicle-mounted mobile systems for the detection

of illicit trafficking of radioactive materials
Strahlenschutz-Messgeräte - Fahrzeuggestützte mobile Systeme zum Aufspüren von
unerlaubt transportiertem radioaktivem Material

Instrumentation pour la radioprotection - Systèmes mobiles montés sur véhicules pour la

détection du trafic illicite des matières radioactives
Ta slovenski standard je istoveten z: prEN IEC 63121
ICS:
13.280 Varstvo pred sevanjem Radiation protection
oSIST prEN IEC 63121:2021 en

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

---------------------- Page: 1 ----------------------
oSIST prEN IEC 63121:2021
---------------------- Page: 2 ----------------------
oSIST prEN IEC 63121:2021
EUROPEAN STANDARD DRAFT
prEN IEC 63121
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2021
ICS 13.280
English Version
Radiation protection instrumentation - Vehicle-mounted mobile
systems for the detection of illicit trafficking of radioactive
materials
(IEC 63121:2020)

Instrumentation pour la radioprotection - Systèmes mobiles Strahlenschutz-Messgeräte - Fahrzeuggestützte mobile

montés sur véhicules pour la détection du trafic illicite des Systeme zum Aufspüren von unerlaubt transportiertem

matières radioactives radioaktivem Material
(IEC 63121:2020) (IEC 63121:2020)
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2021-09-17.
The text of this draft consists of the text of IEC 63121:2020.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 73958 Ref. No. prEN IEC 63121 E
---------------------- Page: 3 ----------------------
oSIST prEN IEC 63121:2021
prEN IEC 63121:2021 (E)
European foreword

This document (prEN IEC 63121:2021) consists of the text of IEC 63121:2020 prepared by IEC/SC 45B

“Radiation protection instrumentation” of IEC/TC 45 "Nuclear instrumentation".
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this document (doa) dor + 6 months
has to be announced at national level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be withdrawn (to be confirmed or
modified when voting)
---------------------- Page: 4 ----------------------
oSIST prEN IEC 63121:2021
prEN IEC 63121:2021 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content constitutes

requirements of this document. For dated references, only the edition cited applies. For undated references,

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

NOTE 1 Where 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 60050-395 2014 International Electrotechnical Vocabulary - - -
Part 395: Nuclear instrumentation: Physical
phenomena, basic concepts, instruments,
systems, equipment and detectors
IEC 61187 - Electrical and electronic measuring EN 61187 -
equipment - Documentation
IEC 62706 - Radiation protection instrumentation - - -
Environmental, electromagnetic and
mechanical performance requirements
IEC 62755 - Radiation protection instrumentation - Data - -
format for radiation instruments used in the
detection of illicit trafficking of radioactive
materials
---------------------- Page: 5 ----------------------
oSIST prEN IEC 63121:2021
---------------------- Page: 6 ----------------------
oSIST prEN IEC 63121:2021
IEC 63121
Edition 1.0 2020-01
INTERNATIONAL
STANDARD
colour
inside
Radiation protection instrumentation –
Vehicle-mounted mobile systems for the detection of illicit trafficking of
radioactive materials
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.280 ISBN 978-2-8322-7706-5

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

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 7 ----------------------
oSIST prEN IEC 63121:2021
– 2 – IEC 63121:2020 © IEC 2020
CONTENTS

INTRODUCTION ..................................................................................................................... 7

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

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

3 Terms and definitions, abbreviated terms and symbols, quantities and units .................... 8

3.1 Terms and definitions .............................................................................................. 8

3.2 Abbreviated terms and symbols ............................................................................ 10

3.3 Quantities and units .............................................................................................. 11

4 General test procedure .................................................................................................. 11

4.1 General ................................................................................................................. 11

4.2 Standard test conditions ....................................................................................... 11

4.3 Uncertainties......................................................................................................... 12

4.4 Statistical fluctuations ........................................................................................... 12

4.5 Background radiation during testing ...................................................................... 12

4.6 Operating parameters and set up .......................................................................... 12

4.7 Setup and test parameters .................................................................................... 12

4.8 Dynamic testing .................................................................................................... 13

4.9 Static testing ......................................................................................................... 13

4.10 Radiation sources ................................................................................................. 14

4.11 Special nuclear material (SNM) and depleted uranium (DU) sources ..................... 15

4.12 Functionality test and test acceptance range requirements ................................... 16

4.12.1 General requirements .................................................................................... 16

4.12.2 Pre-test measurements .................................................................................. 17

4.12.3 Intermediate-test measurements .................................................................... 18

4.12.4 Post-test measurements ................................................................................ 18

4.12.5 Acceptance criteria ........................................................................................ 19

5 General requirements .................................................................................................... 19

5.1 General characteristics ......................................................................................... 19

5.2 Physical configuration ........................................................................................... 20

5.3 Data storage and data files ................................................................................... 20

5.3.1 Requirements ................................................................................................ 20

5.3.2 Method of test................................................................................................ 21

5.4 Communications protocol ...................................................................................... 21

5.4.1 Requirements ................................................................................................ 21

5.4.2 Method of test................................................................................................ 21

5.5 Indication and alarm features ................................................................................ 21

5.5.1 Requirements ................................................................................................ 21

5.5.2 Method of test................................................................................................ 21

5.6 Markings ............................................................................................................... 22

5.6.1 Requirements ................................................................................................ 22

5.6.2 Method of test................................................................................................ 22

5.7 Power supply ........................................................................................................ 22

5.7.1 Requirements ................................................................................................ 22

5.7.2 Method of test................................................................................................ 22

5.8 User interface ....................................................................................................... 22

5.8.1 User accessible controls requirements ........................................................... 22

5.8.2 Supervisory-user accessible indications and functions requirements.............. 22

5.8.3 User display and visual indicators requirements ............................................ 23

---------------------- Page: 8 ----------------------
oSIST prEN IEC 63121:2021
IEC 63121:2020 © IEC 2020 – 3 –

5.8.4 Warning indicators requirements.................................................................... 23

5.8.5 Method of test................................................................................................ 23

6 Radiological tests .......................................................................................................... 24

6.1 False alarm test .................................................................................................... 24

6.1.1 Requirements ................................................................................................ 24

6.1.2 Method of test................................................................................................ 24

6.2 Gamma radiation alarm ......................................................................................... 24

6.2.1 Requirements ................................................................................................ 24

6.2.2 Method of test................................................................................................ 25

6.3 Neutron radiation alarm ........................................................................................ 25

6.3.1 Requirements ................................................................................................ 25

6.3.2 Method of test................................................................................................ 25

6.4 Over-range indication ............................................................................................ 25

6.4.1 Requirements ................................................................................................ 25

6.4.2 Method of test................................................................................................ 26

6.5 Neutron indication in the presence of photons ....................................................... 26

6.5.1 Requirements ................................................................................................ 26

6.5.2 Method of test................................................................................................ 26

6.6 Slowly approaching source—vehicle-mounted mobile system is stationary

during use ............................................................................................................. 27

6.6.1 Requirements ................................................................................................ 27

6.6.2 Method of test................................................................................................ 27

6.7 Background effects—vehicle-mounted mobile system is mobile during use ........... 27

6.7.1 Requirements and background information .................................................... 27

6.7.2 Method of test................................................................................................ 28

6.8 Radionuclide identification—when provided .......................................................... 30

6.8.1 Radionuclide categorisation ........................................................................... 30

6.8.2 Single radionuclide identification ................................................................... 31

6.8.3 Simultaneous radionuclide identification ........................................................ 32

6.8.4 Radionuclide not in library ............................................................................. 32

7 Climatic requirements .................................................................................................... 33

7.1 General ................................................................................................................. 33

7.2 Ambient temperature............................................................................................. 34

7.2.1 Requirements ................................................................................................ 34

7.2.2 Method of test................................................................................................ 34

7.3 Relative humidity .................................................................................................. 34

7.3.1 Requirements ................................................................................................ 34

7.3.2 Method of test................................................................................................ 34

7.4 Dust and moisture protection ................................................................................ 35

7.4.1 Requirements ................................................................................................ 35

7.4.2 Method of test—dust ...................................................................................... 35

7.4.3 Method of test—moisture ............................................................................... 35

8 Mechanical requirements ............................................................................................... 35

8.1 Microphonics/impact ............................................................................................. 35

8.1.1 Requirements ................................................................................................ 35

8.1.2 Method of test................................................................................................ 36

8.2 Vibration ............................................................................................................... 36

8.2.1 Requirements ................................................................................................ 36

8.2.2 Method of test................................................................................................ 36

---------------------- Page: 9 ----------------------
oSIST prEN IEC 63121:2021
– 4 – IEC 63121:2020 © IEC 2020

9 Electrical and electromagnetic requirements .................................................................. 36

9.1 Electrostatic discharge (ESD) ............................................................................... 36

9.1.1 Requirements ................................................................................................ 36

9.1.2 Method of test................................................................................................ 36

9.2 Radio frequency (RF) ............................................................................................ 37

9.2.1 Requirements ................................................................................................ 37

9.2.2 Method of test................................................................................................ 37

9.3 Radiated emissions ............................................................................................... 37

9.3.1 Requirements ................................................................................................ 37

9.3.2 Method of test................................................................................................ 37

9.4 Battery lifetime ...................................................................................................... 37

9.4.1 Requirements ................................................................................................ 37

9.4.2 Method of test................................................................................................ 37

10 Documentation .............................................................................................................. 38

10.1 Report................................................................................................................... 38

10.2 Operation and maintenance manual ...................................................................... 38

Annex A (informative) Uranium/plutonium detection and identification guidance ................... 39

Bibliography .......................................................................................................................... 40

Figure 1 – Reference point diagram for a two-sided vehicle-mounted mobile system

(top down view) .................................................................................................................... 14

Figure 2 – Increasing background with source ...................................................................... 29

Figure 3 – Decreasing background with source ..................................................................... 29

Table 1 – ........................................................................................ 11

Standard test conditions

Table 2 – Setup and test parameters .................................................................................... 13

Table 3 – Test radionuclides and materials used for Clause 6 of this document ................... 15

Table 4 – SNM fluence rates ................................................................................................. 16

Table 5 – Test results analysis .............................................................................................. 19

Table 6 – Radionuclide library ............................................................................................... 30

Table 7 – Radionuclide decay products and impurities .......................................................... 30

---------------------- Page: 10 ----------------------
oSIST prEN IEC 63121:2021
IEC 63121:2020 © IEC 2020 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIATION PROTECTION INSTRUMENTATION –
VEHICLE-MOUNTED MOBILE SYSTEMS FOR THE DETECTION
OF ILLICIT TRAFFICKING OF RADIOACTIVE MATERIALS
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with an IEC Publication.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 63121 has been prepared by subcommittee 45B: Radiation

protection instrumentation, of IEC technical committee 45: Nuclear instrumentation.

The text of this standard is based on the following documents:
FDIS Report on voting
45B/946/FDIS 45B/955/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

---------------------- Page: 11 ----------------------
oSIST prEN IEC 63121:2021
– 6 – IEC 63121:2020 © IEC 2020

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 12 ----------------------
oSIST prEN IEC 63121:2021
IEC 63121:2020 © IEC 2020 – 7 –
INTRODUCTION

Illicit and inadvertent movement of radioactive materials in the form of radiation sources and

contaminated metallurgical scrap has become a problem of increasing importance.

Radioactive sources out of regulatory control, so-called “orphan sources”, have frequently

caused serious radiation exposures and widespread contamination. Although illicit trafficking

of nuclear and other radioactive materials is not a new problem, concern about a nuclear

“black market” has increased, particularly in view of its terrorist potential.

In response to the technical policy of the International Atomic Energy Agency (IAEA), the

World Customs Organization (WCO), and the International Criminal Police Organization

(Interpol) related to the detection and identification of special nuclear materials and security

trends, radiation instrumentation companies have developed and manufactured instruments to

assist in the detection of illicit movement of radioactive and special nuclear materials. This

type of instrumentation is widely used for security purposes at nuclear facilities, border control

checkpoints, and international seaports and airports.

To ensure that measurement results made at different locations are consistent, it is imperative

that radiation instrumentation be designed to rigorous specifications based upon agreed

performance requirements stated in this document. IEC standards have also been developed

to address personal radiation detectors, radiation portal monitors, highly sensitive gamma and

neutron detection systems, spectrometric personal radiation detectors, and backpack-based

radiation detection and identification systems. Those standards are listed below.

Type of IEC
Title of the standard
instrumentation number
Radiation protection instrumentation – Alarming Personal Radiation Devices
62401
(PRDs) for the detection of illicit trafficking of radioactive material
Radiation protection instrumentation – Spectroscopy-Based Alarming Personal

Body-worn 62618 Radiation Devices (SPRD) for the detection of illicit trafficking of radioactive

material

Radiation protection instrumentation – Backpack-type radiation detector (BRD) for

62694
the detection of illicit trafficking of radioactive material

Radiation protection instrumentation – Hand-held instruments for the detection and

62327 identification of radionuclides and for the estimation of ambient dose equivalent

rate from photon radiation
Portable or

Radiation protection instrumentation – Highly sensitive hand-held instruments for

62533
hand-held
photon detection of radioactive material

Radiation protection instrumentation – Highly sensitive hand-held instruments for

62534
neutron detection of radioactive material

Radiation protection instrumentation – Installed radiation portal monitors (RPMs)

62244
for the detection of illicit trafficking of radioactive and nuclear materials
Portal
Radiation protection instrumentation – Spectroscopy-based portal monitors used
62484

for the detection and identification of illicit trafficking of radioactive material

Radiation protection instrumentation – Vehicle-mounted mobile systems for the
Mobile system 63121
detection of illicit trafficking of
...