x射线球管的基本包括结构参数和电参数方面。结构参数是指射线球管结构所决定的各种参数，如靶面倾斜角度,焦点,尺寸,质量,管壁的滤过铅当量,阳极转速,工作温度,冷却和绝缘强度等.电参数是指射线球管电特性的规格参数,如最大管电流,最大管电压，最长曝光时间，最大允许功率等。特别是以下几项参数。
The X ray tube includes structural parameters and electrical parameters. The structural parameters are the parameters determined by the structure of the ray tube, such as the angle of the target surface, the focus, the size, the quality, the lead equivalent of the tube wall, the speed of the anode, the working temperature, the cooling and the insulation strength. The electrical parameters, such as the maximum tube current, the maximum tube voltage, the maximum exposure time, and the maximum exposure time, are the largest. Allow power and so on. In particular, the following parameters.
最大管电压：射线球管两极之间的最高电压值，单位为kV，这是射线球管长、形状、绝缘介质的种类以及管套的形式等决定的。如果超过最大管电压将导致管壁放电或击穿。
The maximum voltage of the tube: the maximum voltage between the two poles of a ray tube. The unit is kV, which is determined by the length, shape, type of insulating medium and the form of the tube. If the maximum tube voltage is exceeded, the discharge or breakdown of the tube wall will occur.
最大管电流是指某一管电压和曝光时间内所允许的最大电流平均值，单位为mA，在调整管电流时不可以超过额定值。否则将导致焦点面过热而损坏或缩短灯丝的寿命。
The maximum tube current is the maximum average current allowed for a certain tube voltage and exposure time, the unit is mA, which can not exceed the rated value when adjusting the tube current. Otherwise, it will cause overheating of the focus surface and damage or shorten the life of the filament.
最长曝光时间是指在某一管电压和管电流条件下所允许的最长曝光时间。单位为秒，使用中若超过此值，热量的积累将使焦点面过热而损坏。
The longest exposure time is the maximum exposure time allowed under a certain tube voltage and tube current. If the unit is in seconds, if the value exceeds this value, the accumulation of heat will cause the focus surface to overheat and damage.