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- W2357730411 abstract "This paper describes the international development and application status of digital radiography(DR) using flat panel detector and computed radiography(CR) using flexible phosphor image plates,for X-ray real-time imaging inspection and quality evaluation of butt welds in major components of pressure equipment such as boilers.A comparison is made between digital radiography and conventional film radiography.The experimental results showed that DR technology can successfully replace RTR with image intensifier for inspecting the girth weld in boiler tubes with single wall thickness up to 12mm.The obtainable resolution was better than 3 lps/mm when using the flat panels with 200 μm pixel pitch at MTF20%.And CR technology is suitable not only for radiographic inspection of welds with thin and medium thickness,but also for pressure equipment components with thick wall welds more than 100 mm,using radiation sources from a conventional X-ray machine less than 400kV to a linear accelerator up to 6 MeV or from an isotope source Ir~(192) to Co~(60),with special resolution better than 25 μm,conforming to the ASME Code requirement i.e.2% radiographic sensitivity." @default.
- W2357730411 created "2016-06-24" @default.
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- W2357730411 date "2009-01-01" @default.
- W2357730411 modified "2023-09-23" @default.
- W2357730411 title "Recent International Advances in use of CR and DR Technology for Welds of Pressure Equipment" @default.
- W2357730411 hasPublicationYear "2009" @default.
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