X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2004-05-18
2009-06-23
Kao, Chih-Cheng G (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S057000, C378S087000
Reexamination Certificate
active
07551709
ABSTRACT:
In CSCT, by using a fan-shaped primary beam, combined with a 2D detector, single-slice transmission tomography and scatter tomography can be measured simultaneously. In such a System blurred scatter functions are measured unless a monochromatic source of radiation is used. According to the present invention, an energy resolving 1D or 2D detector System is proposed, which, in combination with a tomographic reconstruction, provides a good spectral resolution, even with a polychromatic primary beam. Furthermore, according to an aspect of the present invention, only one energy resolving detector-line is required to achieve the fall spectrum. Advantageous applications of the system and method according to the present invention are in medical imaging and material analysis, such as baggage inspection.
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Harding Geoffrey
Schlomka Jens-Peter
Kao Chih-Cheng G
Koninklijke Philips Electrions N.V.
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