[en] The multi volume proceedings of the 14th World Conference on Nondestructive Testing (NDT) cover the applications of Nondestructive Evaluation (NDE) in a wide range of industries, viz. aerospace, chemical, defence, manufacturing, nuclear etc. and for different materials. The major topics covered under it are NDE in nuclear industry, NDE of tubes and bars, non destructive evaluation of composites, NDE of concrete, non destructive evaluation of stresses, NDE of defects, condition monitoring, vibration monitoring, life prediction and NDE for medical applications. Papers relevant to INIS from this volume are indexed separately

[en] An ultrasonic technique for the estimation of residual acrylamide monomer during the polymerization of aqueous acrylamide solution has been investigated. Polyacrylamide gel medium serves as a sensitive medium for detection and dosimetry of fast and thermal neutrons. This technique is based on the fact that the velocity of ultrasonic wave increases with the increase in elasticity due to polymerization. The percentage of residual acrylamide monomer is estimated using ultraviolet spectrophotometric analysis. The ultrasonic velocity is correlated with the residual monomer concentration

[en] Reference defects are used in non-destructive testing (NDT) for the calibration of ultrasonic and Eddy current test requirement. The size and shapes of reference defects vary according to the size of the object examined and the sensitivity of detection desired. This paper describes the development work carried out in the manufacturing and inspection techniques used to machine reference defects on the inside and outside surfaces of a small bore stainless steel tube which is to be used as a calibration standard for ultrasonic examination of a similar tubes. (author)

[en] Utmost importance is given to the in-service inspection of critical components of a reactor to ensure its reliable performance during the reactor operation. This paper describes a cast taking device using cold setting resin to take impression of the grooves being made in the tube sheet for sparger tube installation in pressurised heavy water reactor. (author)

[en] X-ray diffraction has been used as a tool to characterize Bi₂S₃, PbS, CdS and their alloy films. Nickel silicide films grown on silicon substrate have also been characterized for their phase identification. It has been found that Ni₃Si₂ phase grows even at low temperature in presence of some impurities in the film. (author)

[en] Material samples can be obtained from a tubular component by a sliver sample scraping technique without affecting integrity and residual service life of an operating system. These samples may be used for chemical analysis and determination of material properties, dimensional deviations, corrosion and microstructure. This information could provide an indication of remaining useful life of a component. This paper highlights the developmental goals, qualification of sliver sample scraping technique, typical profiles of sliver samples, determination of operating parameters, and evaluation of scraped regions and sliver samples. (author)

[en] The objective of this paper is to analyse the existing energy system of Bangladesh and its testing inspection and maintenance needs under varying conditions and to examine the safety considerations of in-service welding, complexity evaluation of NDT application and applicability of alternative methods. A case study for such application is also included. Indications are also made about the preparatory needs in meeting future demand in terms of manpower, technology, equipment and activities by the turn of the century, so far as the bodies operating in these sectors are concerned. This is done keeping in view of the fact that NDT area is not in a static condition as sophisticated equipment, improved procedures and new innovations keep springing up. (author)

[en] Film based x-ray colour radiography has been developed for the homogeneity evaluation of Al-U alloy nuclear fuel plates. The development of the technique is briefly described. Typical colour radiographs obtained during the fuel homogeneity evaluation are illustrated. (author)

[en] In Pressurized Heavy Water Reactor fuel fabrication, the end cap welding is an important process. Till date about 16,000 welds have been studied ultrasonically. This paper discusses the experimental results and the design of a semi automatic ultrasonic equipment incorporating features for both backward and forward integration. (author)

[en] Through reliable Non Destructive Testing and Evaluation (NDT and E) methods, if the health of a component can be assessed and its remaining life is evaluated, then it is possible to extend the life of such a component. This paper discusses about the assessment of degradation of a conical inlet of a Waste Heat Boiler in a chemical plant. Results obtained through various NDT recommendations for rectification of the component are also discussed. (author)