Reconstructing Signals of Scintillation Detectors

• Published in: Russian journal of nondestructive testing Vol. 58; no. 6; pp. 466 - 478
• Main Authors: Osipov, S. P., Shchetinkin, S. A., Usachev, E. Yu, Chakhlov, S. V., Osipov, O. S.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.06.2022; Springer Nature B.V
• Subjects: Algorithms; Amplitudes; Characterization and Evaluation of Materials; Chemistry and Materials Science; Digital imaging; Materials Science; Mathematical models; Parameters; Radiation; Radiation Methods; Scintillation; Scintillation counters; Sensors; Signal processing; Signal reconstruction; Structural Materials; X ray sources; digital radiography; simulation modeling; signal reconstruction after scintillator; mathematical modeling; X-ray radiation; fast and slow components of flashing; scintillation detectors
• ISSN: 1061-8309; 1608-3385
• DOI: 10.1134/S1061830922060080

A mathematical model of distortion of the initial radiometric signal by a scintillation detector is proposed for the case of recording continuous X-ray radiation during the formation of digital radiographic images. The model takes into account the distribution of the initial signal over time, the time of radiation registration, the bit depth of the ADC, and the time and amplitude parameters of the fast and slow components of the flashing process in the scintillation detector. An algorithm has been developed for signal reconstruction after a scintillator based on preliminary information about the parameters of a scintillation detector for continuous X-ray radiation. Algorithms for estimating the amplitude and time parameters of the fast and slow components of the flashing process in a scintillation detector for X-ray sources are proposed. A series of computational experiments was carried out and, based on the analysis of its results, the effectiveness of the developed algorithms was demonstrated.