10.14489/td.2023.11.pp.052-057

2023, 11 November

DOI: 10.14489/td.2023.11.pp.052-057

Dekopov A. S., Lukyanov A. A., Mikhailov S. V., Lobzhanidze T. K.
RREGULARITIES OF OPTICAL DENSITY OF RADIOGRAPHIC IMAGES OF WELDED TUBULAR ELEMENTS OF HEAT EXCHANGERS. COMPENSATION METHOD IN THE MODE OF PANORAMIC DYNAMIC SLIT RADIOGRAPHY
(pp. 52-57)

Abstract. With regard to the technological problem of leveling irregularities in the optical density of the image, due to differences in the radiation thicknesses of the profile of the welded joint and a narrow dynamic range of film detectors in the radiography of axisymmetric annular welded joints of tubular elements of heat exchangers in one exposure from the axial point of the internal cavity of the welded tubular element, a method of dynamic fanshaped slit radiography, which adaptively compensates for the imbalance in the levels of penetrating γ-radiation fluxes recorded by the detector, taking into account changes in the parameters of radiation thicknesses based on formalized analytical patterns for various zones of the welded joint.

Keywords: radiographic method, axisymmetric circumferential welded joints, steam generator, welded tubular elements, dynamic multislit radiography.

+ - About the Authors Click to collapse

A. S. Dekopov, A. A. Lukyanov, S. V. Mikhailov (JSC “Energomontazh International”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
T. K. Lobzhanidze (JSC “Research Institute of Technical) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

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7. Dekopov A. S., Mihaylov S. V., Lobzhanidze T. K. (2019). Method and diagram of a device for radiographic monitoring of the macrostructure of axisymmetric annular welded joints of welded tubular elements. Ru Patent No. RU 2700364. Russian Federation. [in Russian language]

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