MOLYBDENUM TARGET X-RAY-SPECTRA - A SEMIEMPIRICAL MODEL

被引:93
作者
TUCKER, DM [1 ]
BARNES, GT [1 ]
WU, XZ [1 ]
机构
[1] UNIV ALABAMA,UNIV ALABAMA HOSP & CLIN,DEPT RADIOL,BIRMINGHAM,AL 35294
关键词
D O I
10.1118/1.596686
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
A semiempirical model for generating molybdenum target x-ray spectra is presented. The model is an extension of a previous model developed by the authors for tungsten and takes into account the depth of production for both bremsstrahlung and characteristic x-ray photons. As in the previous work, the optimal model parameters were determined using nonlinear least-squares fits to experimental data. Good agreement between the two was obtained. By varying target angle, off-axis angle, and filtration in the model in accordance with the x-ray tube and geometry of interest, results consistent with tabulated spectra for different conditions have been obtained.
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页码:402 / 407
页数:6
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