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FU Guo-tao, CAO Da-quan, ZHAO Wei, TANG Xiao, SUN Cui-li, WEI Cun-feng, WANG Yan-fang, QUE Jie-min, SHU Hang, MA Chuang-xin, WEI Long, YU Zhong-qiang. Measurement of Contrast Sensitivity of Micro-CT System[J]. Atomic Energy Science and Technology, 2012, 46(10): 1270-1273. DOI: 10.7538/yzk.2012.46.10.1270
Citation: FU Guo-tao, CAO Da-quan, ZHAO Wei, TANG Xiao, SUN Cui-li, WEI Cun-feng, WANG Yan-fang, QUE Jie-min, SHU Hang, MA Chuang-xin, WEI Long, YU Zhong-qiang. Measurement of Contrast Sensitivity of Micro-CT System[J]. Atomic Energy Science and Technology, 2012, 46(10): 1270-1273. DOI: 10.7538/yzk.2012.46.10.1270
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Measurement of Contrast Sensitivity of Micro-CT System

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  • Contrast sensitivity describes the ability of the micro-CT system to reproduce object composition, which mainly depends on the noise of the image. The method of measuring the contrast sensitivity was introduced. A phantom with 50 mm diameter was measured on the system 225 kV-3D-micro ICT and it is found the contrast sensitivity is about 1% at the range of 0.3 mm×0.3 mm×0.3 mm. In addition, the system stability, beam hardening and the reconstruction parameter which affect the measurement result were studied.
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