US 11,751,838 B2
Systems and methods for controlling an X-ray tube filament
Hua Li, Shanghai (CN); Jiawen Zhou, Shanghai (CN); Yifeng Jiang, Shanghai (CN); Tao He, Shanghai (CN); and Yong Yang, Shanghai (CN)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Dec. 28, 2020, as Appl. No. 17/134,552.
Application 17/134,552 is a continuation of application No. 15/798,568, filed on Oct. 31, 2017, granted, now 10,874,372.
Application 15/798,568 is a continuation of application No. PCT/CN2017/074306, filed on Feb. 21, 2017.
Claims priority of application No. 201610096480.5 (CN), filed on Feb. 22, 2016.
Prior Publication US 2021/0113177 A1, Apr. 22, 2021
Int. Cl. A61B 6/03 (2006.01); H05G 1/34 (2006.01); A61B 6/00 (2006.01); H05G 1/26 (2006.01)
CPC A61B 6/582 (2013.01) [A61B 6/032 (2013.01); H05G 1/265 (2013.01); H05G 1/34 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for preheating a filament of an X-ray tube, comprising:
determining a value of tube voltage, a value of tube current, a start time for emission, and a start time for preheating;
determining, based on the start time for emission and the start time for preheating, a time length of preheating of the filament;
establishing a heating model, wherein the heating model includes a corresponding relationship of the value of the tube current, the time length of preheating of the filament, and a filament preheating current at a given tube voltage, and the heating model includes a time length of a first standard preheating and a time length of a second standard preheating;
determining a filament preheating plan according to the value of the tube voltage, the value of the tube current, the time length of preheating of the filament, and the heating model, wherein the determining the filament preheating plan according to the value of the tube voltage, the value of the tube current, the time length of preheating of the filament, and the heating model includes:
determining a filament preheating current of the filament preheating plan by comparing the time length of the preheating of the filament with the time length of the first standard preheating and the time length of the second standard preheating; and
performing, based on the filament preheating plan, a filament-preheating operation.