1 May 2007 Design and theoretical investigation of a digital x-ray detector with large area and high spatial resolution
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Proceedings Volume 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine; 65342A (2007) https://doi.org/10.1117/12.741290
Event: Fifth International Conference on Photonics and Imaging in Biology and Medicine, 2006, Wuhan, China
Abstract
X-ray phase contrast imaging is a promising new technology today, but the requirements of a digital detector with large area, high spatial resolution and high sensitivity bring forward a large challenge to researchers. This paper is related to the design and theoretical investigation of an x-ray direct conversion digital detector based on mercuric iodide photoconductive layer with the latent charge image readout by photoinduced discharge (PID). Mercuric iodide has been verified having a good imaging performance (high sensitivity, low dark current, low voltage operation and good lag characteristics) compared with the other competitive materials (α-Se,PbI2,CdTe,CdZnTe) and can be easily deposited on large substrates in the manner of polycrystalline. By use of line scanning laser beam and parallel multi-electrode readout make the system have high spatial resolution and fast readout speed suitable for instant general radiography and even rapid sequence radiography.
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Jianbao Gui, Jinchuan Guo, Qinlao Yang, Xin Liu, Hanben Niu, "Design and theoretical investigation of a digital x-ray detector with large area and high spatial resolution", Proc. SPIE 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine, 65342A (1 May 2007); doi: 10.1117/12.741290; https://doi.org/10.1117/12.741290
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