EN 12679:2018
(Main)Non-destructive testing - Radiographic testing - Determination of the size of industrial radiographic gamma sources
Non-destructive testing - Radiographic testing - Determination of the size of industrial radiographic gamma sources
This document specifies the determination of the size of gamma radiographic sources of 0,5 mm or greater, made from the radionuclides Iridium 192, Ytterbium 169, Selenium 75 or Cobalt 60, by a method of radiography with X-rays. The source size of a gamma radiography source is an important factor which affects the image quality of gamma ray images.
The source size is determined with an accuracy of ± 10 % but typically not better than ± 0,1 mm.
The source size is provided by the manufacturer as the mechanical dimension of the source insert. A measurement may be required if the manufacturing process is validated or monitored after implementation of the source into the holder.
This document can be used for other radionuclides after validation.
The standard test method ASTM E1114 provides further information on the measurement of the Ir-192 source size, the characterization of the source shape, and its correct assembly and packaging.
Zerstörungsfreie Prüfung - Durchstrahlungsprüfung - Bestimmung der Strahlergrößen von industriell genutzten Radio-Nukliden
Dieses Dokument legt die Bestimmung der Strahlergröße von Gammastrahlern von 0,5 mm oder größer der Radionuklide Iridium 192, Ytterbium 169, Selen 75 oder Cobalt 60 mit Hilfe eines Durchstrahlungs¬ver¬fahrens mit Röntgenstrahlen fest. Die Strahlergröße eines Gammastrahlers ist ein wesentlicher Parameter, der die Bildqualität von Durchstrahlungsbildern beeinflusst.
Die Strahlergröße wird mit einer Unsicherheit von ± 10 % bzw. höchstens ± 0,1 mm gemessen.
Die Strahlergröße wird vom Hersteller als mechanisches Maß des Strahlereinsatzes angegeben. Eine Messung kann erforderlich sein, wenn der Herstellungsprozess nach Befestigung des Strahlers im Halter überprüft oder überwacht wird.
Dieses Dokument kann auch für andere Radionuklide Anwendung finden, wenn die Machbarkeit überprüft wurde.
Das Standard Prüfverfahren ASTM E1114 enthält weitere Informationen zur Bestimmung der Strahlergröße des Radionuklids Ir 192, zur Charakterisierung der Form des Strahlers und zu seiner ordnungsgemäßen Montage und Verpackung.
Essais non destructifs - Contrôle radiographique - Détermination de la dimension des sources de radiographie industrielle gamma
Le présent document traite de la détermination, par une méthode de radiographie aux rayons X, des dimensions des sources de rayonnement gamma de 0,5 mm ou plus, fabriquées à partir des radionucléides iridium 192, ytterbium 169, sélénium 75 ou cobalt 60. La dimension d'une source de rayonnement gamma est un facteur important qui affecte la qualité des images obtenues par rayonnement gamma.
La dimension d'une source est déterminée avec une exactitude de ± 10 %, mais généralement de 0,1 mm au maximum.
La dimension de la source est fournie par le fabricant comme la dimension mécanique de la garniture de la source. Un mesurage peut être requis si le processus de fabrication est validé ou contrôlé après la mise en place de la source dans le porte‐source.
Le présent document peut être utilisé pour d'autres radionucléides après validation.
La méthode d'essai normalisée de l'ASTM E1114 fournit des informations supplémentaires sur le mesurage de la dimension de la source d'Ir‐192, la caractérisation de la forme de la source ainsi que des instructions pour la monter et l'emballer correctement.
Neporušitvene preiskave - Radiografsko preskušanje - Ugotavljanje velikosti industrijskih radiografskih gama izvorov
Ta dokument določa ugotavljanje velikosti radiografskih gama izvorov 0,5 mm ali večjih, izdelanih iz radionuklidov (iridija 192, iterbija 169, selena 75 ali kobalta 60) z metodo radiografije z rentgenskim sevanjem. Velikost radiografskega gama izvora je pomemben dejavnik, ki vpliva na kakovost gama slik.
Velikost izvora je ugotovljena z natančnostjo ±10 %, vendar običajno ne več kot ±0,1 mm.
Velikost izvora posreduje proizvajalec kot mehansko dimenzijo vstavka izvora. Če je proizvodni postopek potrjen ali nadzorovan po uvedbi izvora v držalo, je morda potrebno merjenje.
Ta dokument je mogoče uporabiti za druge radionuklide po potrjevanju.
Standardna preskusna metoda ASTM E 1114 podaja nadaljnje informacije o merjenju velikosti izvora Ir-192, opredelitev oblike izvora ter njegovo pravilno sestavljanje in pakiranje.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2019
1DGRPHãþD
SIST EN 12679:2000
Neporušitvene preiskave - Radiografsko preskušanje - Ugotavljanje velikosti
industrijskih radiografskih gama izvorov
Non-destructive testing - Radiographic testing - Determination of the size of industrial
radiographic gamma sources
Zerstörungsfreie Prüfung - Durchstrahlungsprüfung - Bestimmung der Strahlergrößen
von industriell genutzten Radio-Nukliden
Essais non destructifs - Contrôle radiographique - Détermination de la dimension des
sources de radiographie industrielle gamma
Ta slovenski standard je istoveten z: EN 12679:2018
ICS:
19.100 Neporušitveno preskušanje Non-destructive testing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12679
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2018
EUROPÄISCHE NORM
ICS 19.100 Supersedes EN 12679:1999
English Version
Non-destructive testing - Radiographic testing -
Determination of the size of industrial radiographic
gamma sources
Essais non destructifs - Contrôle radiographique - Zerstörungsfreie Prüfung - Durchstrahlungsprüfung -
Détermination de la dimension des sources de Bestimmung der Strahlergrößen von industriell
radiographie industrielle gamma genutzten Radio-Nukliden
This European Standard was approved by CEN on 18 July 2018.
CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12679:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Test procedure . 5
4.1 Test alignment . 5
4.2 Test practice . 6
5 Requirements to digital equipment . 6
5.1 Digital Detectors . 6
5.2 Test parameters for digital radiography . 7
6 Measurement and determination of source size d . 7
6.1 Measurement with film . 7
6.2 Measurement with digital detectors . 7
6.3 Determination of source size . 9
7 Test report . 9
Bibliography . 10
European foreword
This document (EN 12679:2018) has been prepared by Technical Committee CEN/TC 138 “Non-
destructive testing”, the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2019, and conflicting national standards shall be
withdrawn at the latest by April 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12679:1999.
In the framework of its scope, Technical Committee CEN/TC 138 entrusted CEN/TC 138/WG 1
“Radiographic testing” with preparing the following standard:
EN 12679, Non-destructive testing — Radiographic testing — Determination of the size of industrial
radiographic gamma sources.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This document specifies the determination of the size of gamma radiographic sources of 0,5 mm or
greater, made from the radionuclides Iridium 192, Ytterbium 169, Selenium 75 or Cobalt 60, by a
method of radiography with X-rays. The source size of a gamma radiography source is an important
factor which affects the image quality of gamma ray images.
The source size is determined with an accuracy of ± 10 % but typically not better than ± 0,1 mm.
The source size is provided by the manufacturer as the mechanical dimension of the source insert. A
measurement may be required if the manufacturing process is validated or monitored after
implementation of the source into the holder.
This document can be used for other radionuclides after validation.
The standard test method ASTM E1114 provides further information on the measurement of the Ir-192
source size, the characterization of the source shape, and its correct assembly and packaging.
2 Normative references
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.
EN ISO 19232-5, Non-destructive testing — Image quality of radiographs — Part 5: Determination of the
image unsharpness value using duplex wire-type image quality indicators (ISO 19232-5)
ISO 16371-1, Non-destructive testing — Industrial computed radiography with storage phosphor imaging
plates — Part 1: Classification of systems
ASTM E2002 - 15, Standard Practice for Determining Total Image Unsharpness and Basic Spatial
Resolution in Radiography and Radioscopy
ASTM E2597M - 14, Standard Practice for Manufacturing Characterization of Digital Detector Arrays
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
source size
d
maximum
...
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