Comparison of simulated and measured spectra of an industrial 450 kV X-ray tube
Comparison of simulated and measured spectra of an industrial 450 kV X-ray tube
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DOI：
10.1016/j.nima.2007.05.025
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发表时间：
2007-09
影响因子：
1.4
通讯作者：
A. Miceli;R. Thierry;M. Bettuzzi;A. Flisch;J. Hofmann;U. Sennhauser;F. Casali
中科院分区：
文献类型：
--
作者：
A. Miceli;R. Thierry;M. Bettuzzi;A. Flisch;J. Hofmann;U. Sennhauser;F. Casali
An accurate knowledge of the X-ray source spectrum is required in order to optimize X-ray Computed Tomography systems. A simulation model based on the Monte Carlo code GEANT4 was developed to determine the X-ray spectrum generated by a 450kV tube. The X-ray spectra were measured using a Cadmium Telluride stack detector. The measured spectra were corrected for spurious detector effects and detector efficiency. The X-ray spectra simulated by GEANT4 were validated by comparison with X-ray spectra measured at 350, 400 and 450kV. We observed a good agreement between the simulated and the measured X-ray spectra. In addition, we simulated and measured attenuation curves using aluminium and copper filtration. The comparison of the attenuation curves shows an excellent agreement.
