Calibration method and system for filament current of X-ray tube

A filament current and X-ray tube technology, applied in the field of medical equipment, can solve problems such as insufficient current accuracy, anode heating, and long calibration time, and achieve the effects of short calibration time, high current accuracy, and reduced exposure times

Active Publication Date: 2017-05-10
深圳市深图医学影像设备有限公司
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system for calibrating the filament current of an X-ray tube, aiming to solve the problem of insuffi

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  • Calibration method and system for filament current of X-ray tube
  • Calibration method and system for filament current of X-ray tube
  • Calibration method and system for filament current of X-ray tube

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051]figure 1 A method for calibrating the filament current of an X-ray tube provided by an embodiment of the present invention is shown, including:

[0052] S101, collect the current value of the X-ray tube multiple times, and calculate the average current value;

[0053] S102, judging according to the average current value whether the current filament current value is suitable for the preset current value of the current gear to be calibrated of the X-ray tube;

[0054] S103, if not suitable, calibrate the filament current value, and return to step S101;

[0055] S104. If applicable, save the c...

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Abstract

The invention is applicable to the field of medical instruments and provides a calibration method for filament current of an X-ray tube. The calibration method comprises the following steps: acquiring current values of the X-ray tube for multiple times, calculating an average current value, judging whether the current filament current value conforms to a preset current value of a current level to be calibrated of the X-ray tube according to the average current value, if the current filament current value does not conform to the preset current value, calibrating the filament current value, carrying out the step of acquiring the current values of the X-ray tube for multiple times and calculating the average current value again, if the current filament current value conforms to the preset current value, saving the filament current value, and ending the calibration. According to the calibration method for the filament current of the X-ray tube, whether the current filament current value conforms to the preset current value of the X-ray tube can be judged only according to the average current value, and a user can know whether the filament current value is proper without a large number of tests; the calibration time is short, and the number of times of anode exposure is reduced; meanwhile, judgment and calibration are carried out according to the average current value obtained by multiple samplings and calculation; the precision of the calibrated current is high.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a method and system for calibrating the filament current of an X-ray tube. Background technique [0002] X-ray tomography (Computed Tomography, CT for short) equipment is a commonly used medical diagnostic equipment. By irradiating X-rays to the subject's body and receiving the X-rays that penetrate the subject's body, CT equipment can form photographic pictures that can present the shape of organs and tissues in the subject's body. In CT equipment, X-rays are generated and emitted by an X-ray tube. [0003] The X-ray tube is actually a large high vacuum cathode ray diode with a cathode and an anode on which a filament is arranged. During the working process of the X-ray tube, by applying current to the cathode filament, the filament is heated and free electrons gather, and then a high voltage is applied to the cathode and anode. Due to the sharp increase in the potential differe...

Claims

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Application Information

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IPC IPC(8): G01N23/04
CPCG01N23/046G01N2223/303
Inventor 黄炜钦饶玉明郑伟斌王益民
Owner 深圳市深图医学影像设备有限公司
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