Development and characterization of the efficient portable X-ray imaging device based on Raspberry Pi camera
Abstract
This study reports the development and characterization of an efficient portable X-ray imaging device built from Raspberry Pi components, including a high-quality 12.3-megapixel camera configured for indirect detection with a Gd2O2S:Tb scintillation screen. The device was evaluated under both ambient light and X-ray exposure conditions. Initial characterization under ambient light ensured proper optical focusing; subsequently, camera settings (ISO and exposure time) were evaluated and optimized for X-ray imaging performance. Spatial resolution of the developed device was quantified using the Slanted-Edge method to derive the Modulation Transfer Function (MTF). Besides the low-noise feature, the device achieves MTF20 values of 68 lp/mm under ambient light and 25 lp/mm under X-ray irradiation (50 and 70 kV). Moreover, the modularity of the developed device was confirmed by conducting the tests with LYSO:Ce and GAGG:Ce screens. The results demonstrate that this efficient, scientific-grade, compact platform achieves spatial resolution comparable to that of clinical radiography systems, highlighting its potential for applications in scientific, educational, and medical contexts where efficient and portability are critical considerations.
Cite
@article{arxiv.2602.20668,
title = {Development and characterization of the efficient portable X-ray imaging device based on Raspberry Pi camera},
author = {Nguyen Duc Ton and Nguyen Thanh Luan and Faizan Anjum and D. Joseph Daniel and Sunghwan Kim and Suchart Kothan and Jakrapong Kaewkhao and Hong Joo Kim},
journal= {arXiv preprint arXiv:2602.20668},
year = {2026}
}