Development of a Digital Panoramic X-Ray Imaging System of Adaptive Image Layers for Dental Applications
As a continuation of our digital radiographic sensor R&D, we have developed a prototyped digital panoramic X-ray imaging system for dental applications. The imaging system consists of a slit-collimated X-ray generator with a 0.4 mm focal spot size and a 3.5 mm Al filtration, a linear-array typed CMOS imager with a 48×48 µm2 pixel size and a 128 (in the scan direction)×3072 (in the vertical direction) pixel format, a series of microstep motors for the precise motion control of the imaging system, and the designed sequences for the motion control and pixel readout required to make a specific plane of interest (POI) to be focused. With the several test phantoms we designed, we obtained useful digital panoramic X-ray images by moving the X-ray generator and the CMOS imager along a continuously sliding rotational center. In this study, we demonstrated that the prototype system can be applicable to any shaped POI or multi-POIs simultaneously to be focused, provided that adequate sequences for motion control and pixel readout are designed. We expect that the imaging system will be useful for our ongoing applications of dental panoramic radiography and nondestructive testing. © 2010 Elsevier B.V.
S. I. Choi and Y. O. Park and H. S. Cho and J. E. Oh and H. M. Cho and D. K. Hong and M. S. Lee and Y. J. Yang and U. K. Je and D. S. Kim and H. Lee, "Development of a Digital Panoramic X-Ray Imaging System of Adaptive Image Layers for Dental Applications," Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, Jan 2011.
The definitive version is available at http://dx.doi.org/10.1016/j.nima.2010.09.101
Mining and Nuclear Engineering
Keywords and Phrases
Adaptive Image Layer; Dental Imaging; Digital X-Ray Image; Panoramic Imaging System
Article - Conference proceedings
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