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Zouboff, Vadim; Darnault, Claude; Leloup, J.-C.
Laboratoire Central des Ponts et Chaussees, 75 - Paris (France)
Laboratoire Central des Ponts et Chaussees, 75 - Paris (France)
AbstractAbstract
[en] The device comprises a common gamma source, located on one side of the concrete block to be examined on the opposite side, a detecting unit comprising a collimator and a photo-multiplier detector connected to a display unit and moving along rails parallel to the concrete block face. That device is used for displaying concrete defects in particular injection deficiencies in the pre-stress sheaths of concrete used for the building of bridges or tunnels
[fr]
On decrit un dispositif qui comporte une source emettrice commune de rayonnement gamma place d'un cote d'un bloc de beton a etudier et un ensemble de detection situe de l'autre cote du block compose d'un collimateur et d'un detecteur photo-multiplicateur raccorde a un organe d'affichage et mobile sur des rails parallelement a la face du bloc de beton. Le dispositif est destine a mettre en evidence les defauts des betons en particulier les manques d'injection dans les gaines de precontrainte de beton destine aux ouvrages d'artOriginal Title
Dispositif destine a mettre en evidence les defauts des betons; non-destructive gamma control
Primary Subject
Source
26 Apr 1973; 8 p; FR PATENT DOCUMENT 2227791/D/; Available from Institut National de la Propriete Industrielle, Paris (France).
Record Type
Patent
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AbstractAbstract
[en] The lecture traces gamma radiography from its inception by Robert Mehl in 1928 to 1941. The lecture was presented at the first and organizational meeting of the American Industrial Radium and X-Ray Society, Inc., at Massachusetts Institute of Technology on Oct. 17, 1942
Primary Subject
Source
1. meeting of the American Industrial Radium and X-Ray Society, Inc; Cambridge, MA, USA; 17 Oct 1941; 1941 Mehl lecture.
Record Type
Journal Article
Literature Type
Conference
Journal
Materials Evaluation; v. 34(3); p. vp
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AbstractAbstract
No abstract available
Original Title
Self-propelled vehicle carrying a radiation source inside the pipe
Primary Subject
Source
9 Oct 1973; 8 p; US PATENT DOCUMENT 3,764,806
Record Type
Patent
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AbstractAbstract
[en] A radiography apparatus attachable to the exterior surface of an object which is to be radiographed where the exterior surface is underwater is described. (U.S.)
Original Title
Patent; underwater equipment
Primary Subject
Source
24 Jun 1975; 8 p; US PATENT DOCUMENT 3,891,845
Record Type
Patent
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AbstractAbstract
No abstract available
Original Title
Etude de l'influence des conditions geometriques de pose sur la qualite d'image en gammagraphie
Primary Subject
Record Type
Journal Article
Journal
Bulletin d'Information sur les Applications Industrielles des Radioelements; (no.105); p. 16-33
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AbstractAbstract
[en] This Decree, amending Article R 233-83 of the Labour Code, applies to gamma-ray industrial radiography equipment whether mobile or fixed. It contains specific technical conditions concerning the equipment, in particular, safety devices located at the entry and exit points of the source's shield. The equipment must carry a notice mentioning''Radioactive''prepared by the constructor or the importer of the source, which explains the conditions for handling, setting-up, use and maintenance of the source, including the frequency of revisions. The Decree entered into force on 1 June 1986. (NEA)
[fr]
Ce Decret qui modifie l'article R 233-83 du Code du travail, s'applique aux appareils de radiographie industrielle utilisant le rayonnement gamma, qu'ils soient a partie portative, fixe ou mobile. Il contient des prescriptions techniques detaillees concernant l'appareillage, s'agissant en particulier des dispositifs de securite relatifs a la sortie et a la rentree de la source dans sa protection. Chaque exemplaire de l'appareil doit porter la mention ''radioactivite''et doit etre accompagne d'une notice etablie par le constructeur ou l'importateur indiquant les conditions de manutention, d'installation, d'utilisation et d'entretien y compris la frequence des revisions. Le decret est entre en vigueur le 1er juin 1986Original Title
Decret no 85-968 du 27 aout 1986 modifiant l'article R.233-83 du Code du travail et definissant les conditions d'hygiene et de securite auxquelles doivent satisfaire les appareils de radiographie industrielle utilisant le rayonnement gamma
Primary Subject
Source
14 Sep 1986; 3 p; Published in Journal Officiel de la Republique francaise.
Record Type
Miscellaneous
Literature Type
Legislative Material
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AbstractAbstract
[en] A device is suggested for defectoscopy based upon gamma-translucency. The defectoscope involves a protective container with a curvilinear channel for the radiation source and a flexible directing ampule conductor with a rope. At the end of the rope there is an ampule with the radiation source and a drive for the rope displacement along the conductor. To reduce the displacement force the defectoscope has a vibration device, which supplies low frequency oscillations to the moving rope in the plane normal to the displacement direction. The scheme of the rope displacement drive is given
Original Title
Ustrojstvo dlya defektoskopii izdelij na osnove prosvechivaniya ikh gamma-izlucheniyami
Primary Subject
Source
13 Aug 1973; 2 p; SU PATENT DOCUMENT 463896/A/
Record Type
Patent
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AbstractAbstract
[en] The apparatus and a method for the inspection of tubes in a steam generator include a film-bearing cassette probe insertable into a target tube to a predetermined region to be inspected and a source of radiation, preferably a radioisotope, insertable into a tube adjacent the target tube to a position laterally adjacent the region to be inspected on the target tube. The cassette probe is sufficiently flexible to transit regions of tight tube curvature. 8 claims, 12 drawing figures
Original Title
Patent
Primary Subject
Source
18 May 1976; 14 p; US PATENT DOCUMENT 3,958,120
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Patent
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AbstractAbstract
[en] Because of its practical aspect digital radiography is more and more used in the industrial sector. There are 2 kinds of digital radiography. First, the 'computed radiography' that uses a photon-stimulated screen, and after radiation exposure this screen must be read by an analyser to get a digit image. The second type is the 'direct radiography' that allows one to get a digit radiograph of the object directly. Digital radiography uses the same radioactive nuclides as radiography with silver films: cobalt, iridium or selenium. The spatial resolution of digital radiography is less good than with classical silver film radiography but digital radiography offers a better visual contrast. (A.C.)
Original Title
Les avancees de la radiographie numerique
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Record Type
Journal Article
Journal
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AbstractAbstract
No abstract available
Original Title
Patent
Primary Subject
Source
10 Sep 1974; 8 p; US PATENT DOCUMENT 3,835,324
Record Type
Patent
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