Radiation protection instrumentation - Installed personnel surface contamination monitors

This document applies to contamination monitors that include warning assembles and meters used for the monitoring of radioactive contamination on the surface of personnel whether they be clothed or not. The document is applicable only to that type of equipment where the user stays at the monitor. It is not applicable to the user passes quickly through the monitor. It is also not applicable to any peripheral equipment which may be associated with a particular type of equipment such as small article monitors. Probes (friskers) for measuring clothes or body by the person under monitoring or someone else are included in this document.

Strahlenschutz-Messgeräte - Fest installierte Personenkontaminationsmonitore

Instrumentation pour la radioprotection - Moniteurs fixes pour la surveillance de la contamination de surface du personnel

IEC 61098:2023 s'applique aux moniteurs qui comprennent des ensembles de prévention et appareils de mesure utilisés pour la surveillance de la contamination radioactive en surface des personnels, que ceux-ci soient habillés ou non. Le document ne s'applique qu'aux équipements dont les utilisateurs restent au niveau du moniteur. Le présent document s'applique à la surveillance du corps entier (y compris la tête), des mains et des pieds, mais certaines parties du présent document peuvent être utilisées pour des moniteurs conçus uniquement pour la surveillance de la contamination radioactive des mains et/ou des pieds. Cette troisième édition annule et remplace la deuxième édition parue en 2003. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a. le titre a été modifié; b. en lieu et place des petites sources zonales, des sources zonales ont été ajoutées pour les méthodes d'essai concernant les variations de la réponse en fonction de la position de la source, le rendement réel d'un instrument, la limite de détection (DL, Detection Limit) et la variation de la réponse en fonction de l'énergie; c. la limite de détection (DL) est conforme à la série ISO 11929; d. les descriptions des grandeurs d'influence de type F et de type S ont été ajoutées; e. la cohérence avec l'IEC 62706 a été améliorée pour les exigences d'environnement, les exigences mécaniques, la compatibilité électromagnétique et les méthodes d'essai; f. des descriptions de détecteurs aériens ont été ajoutées; g. des descriptions de Friskers ont été ajoutées pour la surveillance des mains et des pieds; h. les figures ont été simplifiées pour comprendre la relation entre la position du détecteur et la réponse, ainsi que la relation de position entre la surface du détecteur et la source

Instrumenti za zaščito pred sevanjem - Vgrajeni monitorji osebne površinske kontaminacije (IEC 61098:2023)

Ta dokument se uporablja za monitorje kontaminacije, ki vključujejo opozorilne sklope in merilnike za spremljanje radioaktivne površinske kontaminacije na oblačilih ali koži oseb. Ta dokument se uporablja samo za vrsto opreme, kjer uporabnik stoji pri monitorju. Ne uporablja se v primerih, kjer uporabnik bežno pogleda na monitor. Prav tako se ne uporablja za kakršno koli periferno opremo, ki jo je mogoče povezati s posebno vrsto opreme, kot so monitorji za male predmete. Sonde (detektorji) za izvajanje meritev na oblačilih ali telesu osebe, ki se jo spremlja, ali druge osebe, so vključene v ta dokument. Sonde (detektorji) so vedno povezani z monitorjem.
Ta dokument se uporablja za monitoring celotnega telesa (vključno z glavo), rok in nog, vendar je mogoče dele tega dokumenta uporabiti za monitorje, ki so zasnovani za spremljanje radioaktivne kontaminacije samo na rokah in nogah. Ta dokument ne vključuje merjenja prisotnosti tritija.
Ta dokument se uporablja za:
– monitor, nameščen na osebo (uporabljajo se vse točke);
– prenosni monitor za osebe (uporabljajo se vse točke);
– monitor za spremljanje rok (glej naslednje točke in podtočke: 2, 3, 4, 5, 6, 7.1.3, 7.2, 7.3.4, b), 7.4.3,,, b), 7.5, 7.6, 7.7, 8, 9, 10, 11, 12, 13 in 14);
– monitor za spremljanje nog (glej naslednje točke in podtočke: 2, 3, 4, 5, 6, 7.1.4, 7.2, 7.3.5, c), 7.4.3,,, c), 7.5, 7.6, 7.7, 8, 9, 10, 11, 12, 13 in 14); in
– monitor za spremljanje rok in nog (vključno s sondo (detektorjem) za merjenje celotnega telesa) (glej naslednje točke in podtočke: 2, 3, 4, 5, 6, 7.1.3, 7.1.4, 7.1.5, 7.2, 7.3.4, 7.3.5, 7.3.6, b), c), d), 7.4.3,,, b), c), d),7.5, 7.6, 7.7, 8, 9, 10, 11, 12, 13 in 14).
Cilj tega dokumenta je določiti mehanske in operativne lastnosti, minimalne lastnosti delovanja in splošne preskusne postopke za monitorje za osebe.

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Standards Content (Sample)

Instrumenti za zaščito pred sevanjem - Vgrajeni monitorji osebne površinske
kontaminacije (IEC 61098:2023)
Radiation protection instrumentation - Installed personnel surface contamination
monitors (IEC 61098:2023)
Strahlenschutz-Messgeräte - Fest installierte Personenkontaminationsmonitore (IEC
Instrumentation pour la radioprotection - Moniteurs fixes pour la surveillance de la
contamination de surface du personnel (IEC 61098:2023)
Ta slovenski standard je istoveten z: EN IEC 61098:2024
13.280 Varstvo pred sevanjem Radiation protection
17.240 Merjenje sevanja Radiation measurements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.


ICS 13.280; 17.240 Supersedes EN 61098:2007
English Version
Radiation protection instrumentation - Installed personnel
surface contamination monitors
(IEC 61098:2023)
Instrumentation pour la radioprotection - Moniteurs fixes Strahlenschutz-Messgeräte - Fest installierte
pour la surveillance de la contamination de surface du Personenkontaminationsmonitore
personnel (IEC 61098:2023)
(IEC 61098:2023)
This European Standard was approved by CENELEC on 2024-01-22. 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, 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,
Türkiye and the United Kingdom.

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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61098:2024 E
European foreword
This document (EN IEC 61098:2024) consists of the text of IEC 61098:2023 prepared by IEC/SC 45B
“Radiation protection instrumentation” of IEC/TC 45 "Nuclear instrumentation".
The following dates are fixed:
• latest date by which this document has to be (dop) 2025-01-22
implemented at national level by publication of
an identical national standard or by
• latest date by which the national standards (dow) 2027-01-22
conflicting with this document have to be
This document supersedes EN 61098:2007 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61098:2023 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
ISO 11929 (series) NOTE Approved as EN ISO 11929 (series)
Annex ZA
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-395 - International Electrotechnical Vocabulary - - -
Part 395: Nuclear instrumentation: Physical
phenomena, basic concepts, instruments,
systems, equipment and detectors
IEC 61000-4-2 - Electromagnetic compatibility (EMC) - Part 4- EN 61000-4-2 -
2: Testing and measurement techniques -
Electrostatic discharge immunity test
IEC 61000-4-3 - Electromagnetic compatibility (EMC) - Part 4- EN IEC 61000-4-3 -
3 : Testing and measurement techniques -
Radiated, radio-frequency, electromagnetic
field immunity test
IEC 61000-4-5 - Electromagnetic compatibility (EMC) - Part 4- EN 61000-4-5 -
5: Testing and measurement techniques -
Surge immunity test
IEC 61000-4-6 - Electromagnetic compatibility (EMC) - Part 4- - -
6: Testing and measurement techniques -
Immunity to conducted disturbances, induced
by radio-frequency fields
IEC 61000-4-8 - Electromagnetic compatibility (EMC) - Part 4- EN 61000-4-8 -
8: Testing and measurement techniques -
Power frequency magnetic field immunity test
IEC 61000-4-12 - Electromagnetic Compatibility (EMC) - Part 4- EN 61000-4-12 -
12: Testing and measurement techniques -
Ring wave immunity test
IEC 62706 - Radiation protection instrumentation - - -
Environmental, electromagnetic and
mechanical performance requirements
ISO 8769 2020 Measurement of radioactivity - Alpha-, beta- EN ISO 8769 2022
and photon emitting radionuclides - Reference
measurement standard specifications for the
calibration of surface contamination monitor

IEC 61098 ®
Edition 3.0 2023-02
Radiation protection instrumentation – Installed personnel surface

contamination monitors
Instrumentation pour la radioprotection – Moniteurs fixes pour la surveillance de

la contamination de surface du personnel

ICS 13.280; 17.240 ISBN 978-2-8322-6527-7

– 2 – IEC 61098:2023 © IEC 2023
1 Scope . 8
2 Normative references . 8
3 Terms, definitions, units and symbols . 9
3.1 Terms and definitions . 9
3.2 Units . 14
3.3 Symbols (see Table 1) . 15
4 Classification of monitors . 16
4.1 According to type of radiation to be measured . 16
4.2 According to body surface being monitored . 16
4.3 According to background compensation method . 16
5 Design characteristics . 16
5.1 Positioning of the person being monitored . 16
5.2 Size of the person being monitored . 16
5.3 Hand monitoring facilities . 17
5.4 Foot monitoring facilities . 17
5.5 Body monitoring facilities . 17
5.6 Frisker . 17
5.7 Visual display. 18
5.7.1 For the user . 18
5.7.2 For maintenance purposes . 18
5.8 Audible indicators . 18
5.9 Monitoring period . 18
5.10 Ease of decontamination . 18
5.11 Detectors used . 19
5.12 Seismic consideration . 19
6 Performance requirements and test procedures . 19
6.1 General test procedure . 19
6.1.1 Nature of tests . 19
6.1.2 Tests performed under standard test conditions . 19
6.1.3 Tests performed with variation of influence quantities . 19
6.1.4 Type F influence test . 20
6.1.5 Type S influence test . 20
6.2 Functionality test . 20
6.2.1 General . 20
6.2.2 Pre-test . 20
6.2.3 Post-test . 21
6.3 Statistical fluctuations . 21
6.4 Reference sources . 21
6.5 Requirements for use of gas flow detectors . 22
7 Radiation measurement characteristics . 22
7.1 Variation of response with source position . 22
7.1.1 General . 22
7.1.2 For clothing or the body . 22
7.1.3 For hand monitoring. 27
7.1.4 For foot monitoring . 28

IEC 61098:2023 © IEC 2023 – 3 –
7.1.5 Contamination measurement of cloth or body by friskers . 30
7.2 Background. 33
7.2.1 General . 33
7.2.2 Subtraction of pre-determined background . 33
7.2.3 Simultaneous subtraction of determined background . 33
7.2.4 No background subtraction . 33
7.2.5 Gamma monitoring systems . 34
7.3 Detection limit (DL) . 34
7.3.1 General . 34
7.3.2 For clothing or body . 36
7.3.3 The effective instrument efficiency at the specific operating point . 36
7.3.4 For hand monitoring.

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