Comparison of the Effect of the Time Under the Three Primary Color Lighting of Led Production Before Scanning of Phosphorus Plates

Year 2022, Volume: 49 Issue: 3, 131 - 138, 31.12.2022

Hakan Amasya , Kaan Orhan , Afra Alkan

https://doi.org/10.52037/eads.2022.0040

Abstract

Purpose
This study aims to compare the effect of light exposure in red, green and blue (RGB) colors prior to scanning of the PSP plates.
Materials & Methods
An Arduino-based system is produced for standardized light exposure to the irradiated PSP plates. The system consisted of an Arduino Mega 2560 developer board, 2 RGB LED light sources, a TSL2591 digital light sensor and a DHT11 temperature and humidity sensor. A light-tight platform is produced with additive manufacturing and electronical units are integrated into this platform. A two-step alloy was used to create contrast. PSP system (VistaScan, Dürr Dental, Germany) is irradiated with fixed parameters of 70 kV, 8 mA and 0.5 seconds. Scanning of the PSPs were delayed for 1-,3-,5-, and 10-minutes, and half of the active surfaces are exposed to RGB lights independently in full brightness (PWM) and calibrated with lux while the rest is protected. MGVs are measured in 6 regions per image. The MGV differences in regions between conditions were examined by Kruskal-Wallis test. A p-value<0.05 was considered statistically significant.
Results
In PWM setup, signal loss was higher in blue color at 1-,3-, and 5-minutes, but at 10-minutes, only the green light produced half-image. In LUX setup, signal loss was lower in green light. Contrast loss was lower in green light with LUX calibration. (p<0.05)
Conclusion
Among three colors compared, effect of exposure to green light prior to scanning of the irradiated PSP plates is found to be lower than the other colors.

Keywords

digital radiology, material science, photostimulable phosphor plate

Supporting Institution

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Project Number

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Thanks

The 3D manufactured platform is designed, produced, and combined in Cerrahpaşa Research, Simulation and Design Center (CAST).

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