Abstract：As one of the important parameters of the X-ray tube, the filament emission characteristic
curve used currently shall be stored in the generator, and then the filament current can be loaded to a
predetermined value when the X-ray exposure is prepared. There are two methods to store the curve
in the generator: data table format and curve equation method. The former has rapid access to the data
and more storage space; and the latter is just opposite. Under the high calculating speed of the modern
computers, the generator has adequate speed to acquire the data from the curve equation. This paper
uses the VB software interface, and sample the filament emission curve of X-ray tube by point-by-point
manner, then applies linear least-squares method to perform curve fitting. Finally, the filament emission
characteristic curve is acquired so as to provide the value of X-ray tube filament heating current for the
generator.
王晓明，闫伟，徐泽林，陈荣，
崔少康. X射线管灯丝发射特性曲线的拟合算法[J]. 中国医疗设备, 2016, 31(9): 50-53.
WANG Xiao-ming, YAN Wei,
XU Ze-lin, CHEN Rong,
CUI Shao-kang. Fitting Algorithm of the Filament Emission Characteristic Curve for
X-Ray Tube. China Medical Devices, 2016, 31(9): 50-53.
