UDC
620.179.1
DOI
10.18577/2307-6046-2026-0-7-203-214
Article PDF (Russian) (1.49 MB)
How to cite
N.V. Osiyanenko, M.A. Dalin, E.I. Kosarina, A.A. Demidov Microdensitometer and determination of granularity of radiographic technical films // Proceedings of VIAM. 2026. No. 7. DOI: 10.18577/2307-6046-2026-0-7-203-214. URL: https://viam-works.ru/en/journal/2026/7/16

Microdensitometer and determination of granularity of radiographic technical films

N.V. Osiyanenko, M.A. Dalin, E.I. Kosarina, A.A. Demidov
Abstract

The article presents the functional scheme and external appearance of a microdensitometer, which can be used to obtain information about the granularity of an X-ray film and determine whether it belongs to a specific class regulated by GOST R ISO 11699-1–2023. The technological sequence of obtaining a sensitogram and an optical density matrix, as well as the procedure for its statistical processing and the calculating the granularity of an X-ray film is given. An experimental verification of the developed technology was carried out on a certified D5 Agfa radiographic film with a known value of its grain size and full compliance with the declared and experimentally obtained grain size was obtained.

Keywords
X-ray non-destructive testing, radiographic film, sensitogram, granularity, linear regression, filtering, statistical processing of readings
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