Chinese Physics C > 2004, Vol. 28 > Issue(10): 1131-1134

Uniformity Calibration for ICT Image

Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039,China

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Abstract：
The uniformity of ICT image is impaired by beam hardening and the inconsistency of detector units responses. This paper analyzes the beam hardening and the nonlinearity of the detector's output. The correction factors are determined experimentally by the detector's responses with different absorption length. The artifacts in the CT image of a symmetrical aluminium cylinder have been eliminated after calibration.

References

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ZENG Gang, LIU Li, QUE Jie-Min, ZHANG Ying-Ping, YIN Yin, WANG Yan-Fang, YU Zhong-Qiang and YAN Yong-Lian. Uniformity Calibration for ICT Image[J]. Chinese Physics C, 2004, 28(10): 1131-1134.

ZENG Gang, LIU Li, QUE Jie-Min, ZHANG Ying-Ping, YIN Yin, WANG Yan-Fang, YU Zhong-Qiang and YAN Yong-Lian. Uniformity Calibration for ICT Image[J]. Chinese Physics C, 2004, 28(10): 1131-1134. shu

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Received: 2004-03-18
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Uniformity Calibration for ICT Image

Corresponding author:ZENG Gang,

Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039,China

Received Date:2004-03-18
Accepted Date:1900-01-01
Available Online:2004-10-05

Abstract:The uniformity of ICT image is impaired by beam hardening and the inconsistency of detector units responses. This paper analyzes the beam hardening and the nonlinearity of the detector's output. The correction factors are determined experimentally by the detector's responses with different absorption length. The artifacts in the CT image of a symmetrical aluminium cylinder have been eliminated after calibration.