NDT 2007 Abstracts: 5B-6B
Thursday 20 September
Session 5B – Panel Session: The NDT Career Development Ladder
Session 6B – Advanced Radiography
Replace conventional film radiography with high definition digital computed radiography
S Sood CEng, MIEEE, M.TECH, B.TECH
Chairman/Managing Director, Computerised Information Technology Limited, UK. E: scsood@btconnect.com
With the compliance requirements EC directives, such as, for environmental liability, reference 80/1107/EEC –(ALARA), health and safety at work directive 89/391/EEC/COD99/0085; International Commission on Radiological Protection Publication ICRP26-Council directive 80/836/Euratom(BSS80) and in addition there is Petroleum Act 1998 and EU directive 96/61/EC, the high definition digital computed radiography technology is fulfilling the key objectives of environmental, social and economic policies. This is a non-destructive inspection technology that is replacing the traditional film radiographic methods. Computed digital radiography is much faster, effective and safer for the manufacturer, site radiography applications during maintenance and operational of product plant and equipment for aerospace, nuclear, petrochemical, shipbuilding, construction and service industries. The EC funded FilmFree project consortium of 31 European partners are developing, and validating the technology for the requirement of the above markets. Converting to the digital computed radiography the organisation will meet the above-stipulated objectives, enjoy the commercial benefits by reducing the inspection costs and at the same time retain the current radiography facilities and the skill sets of the inspectors. This presentation will disseminate information vital to each individual industrial sector to enable them to decide whether they should replace their conventional film methods for digital computed radiography.
CIT is the lead SME and the exploitation manager of the FilmFree project. The worldwide customers can approach the FilmFree consortium for the total deployment prospects and the procedures to fulfil their challenging needs
FilmFree is a collaboration between the following organisations: TWI Ltd, CIT Ltd, Innospexion ApS, OY AJAT Ltd, Advanced Technology Group s.r.o., Isotest Engineering S.r.l., Tecnitest Ingenieros SL, Trueflaw Ltd, Kingston Computer Consultancy Ltd, NDT Consultants Ltd, Technic Control Ltd Co, Industrial Control Machines SA, X-Tek Systems Ltd, Compra GmbH, Nexus Engineering Ltd, Airbus UK Ltd, EADS CCR - Groupement d’Interet Economique, Wytwornia Sprzetu Komunikacyjnego PZL – Rzeszow SA, Total France, Rolls Royce plc, DB AG, Helenic Society of Non Destructive Testing, Castings Technology International, Bulgarian Welding Society, Commissariat a l’energie atomiique, Federal Institute for Materials Research and Testing, Technical University of Sofia and Politechnika Szcezinska. The Project is co-ordinated and managed by TWI Ltd. and is partly funded by the EC under the IP SME programme ref: Number NMP2-CT-2005-515746.
Accuracy of steel pipe wall thickness measurement with computed radiography
J Opdekamp
GE Inspection Technologies
The use of Computed Radiography in NDT has largely increased over the last years. One important application of computed radiography is corrosion monitoring and wall thickness measurement in the oil & gas industry. Over the last decade several software algorithms have been developed and are available commercially now.
One important advantage of a wall thickness measurement using software tools is the consistency of the measurement that is also objective, not being subject to pure visual interpretation. In this paper we will give an overview of all the advantages of wall thickness determination with computed Radiography. Some of the existing algorithms will be discussed as well as the accuracy of the different calculation methods.
The German BAM Institute has done an independent 3rd party validation study of the wall thickness measurement in collaboration with BASF. The results of this validation report will be presented in this paper.
The transition from conventional RD to digital RD
Ron Pincu
NDT Division Manager – Vidisco Ltd
Digital radiography is earning its place in the NDT market, as specialists realise this technology does not fall from film X-ray but even surpasses it.
Digital RD provides many economical benefits to users: fast images upon request for immediate analysis save time, reduce costs and enlarge the profits of NDT testing providers. The article will elaborate regarding two examples of NDT testing with a field operated X-ray inspection system.
The first, a research commissioned by the Environmental Protection Agency and conducted by Dr Glenn Light of the South West Research Institute, USA. Dr Light's compared between Isotope Ir-192 and the Vidisco system with a portable pulsed X-ray source, when inspecting various pipes and defects. His results indicate that Vidisco system provides a higher level of detection in less time and at considerable savings.
The second, pipe inspection conducted by Inspecta: NDT testing company, in Finland. The combined use of isotope energy and the Vidisco foX-Rayzor X-ray inspection system enables penetration of thick steel pipes with Gama energy while cutting the exposure time radically and increasing employee safety. The Inspecta examples show various tests with the Vidisco system in the field.
