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14 November 2007 Design of wireless triggering pulse generation for x-ray medical system
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Proceedings Volume 6789, MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques; 67890O (2007) https://doi.org/10.1117/12.748982
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China
Abstract
Digital x-ray imaging system is composed of an x-ray generator and a digital image acquisition system. In this paper, we designed a wireless trigger pulse generation circuit, detection trigger board, to capture the image accurately by established the synchronization between x-ray generator and digital image acquisition system and we analyzed its performance and compared to conventional method. There are two pulses generated by this study, the ACQ_START pulse, which indicates the detection of x-ray radiation from x-ray generator, and the ACQ_END pulse, which indicates the x-ray disappearance from x-ray generator. These trigger the image acquisition system of digital x-ray imaging system, to start the image capturing or to stop. Geiger tube were used to detect x-ray radiation from the air. Image acquisition is activated only this time between ACQ_START and ACQ_END signal. By detecting the x-ray radiation signal from the air and generate the trigger pulses, we can get more accurate timing for capturing the x-ray image. Also, owing to omitting the installation wire between x-ray generator and digital image acquisition system, Installation will be very easy. In addition to that, any type of x-ray generator can be installed without incompatibility. With this experiment, we tried to capture images of the resolution chart to compare the experimental result. We got 3.5 line pair / mm resolution at 20 mAs of x-ray level with resolution chart. This is same or better image comparing to conventional way.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dae-Sik Ko and Jae-Cheol Lee "Design of wireless triggering pulse generation for x-ray medical system", Proc. SPIE 6789, MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, 67890O (14 November 2007); https://doi.org/10.1117/12.748982
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