The difference between the big and small seconds of the DR machine
The milliamp second is the number of milliamps * exposure time, in MAS. KV and mA represent the relationship between the quality and quantity of X-rays. When taking an X-ray film, the resolution of its blackness (sharpness) directly affects the doctor’s diagnosis of the lesion, which is the quality of the film. The so-called quality refers to kV, which represents the penetrating power of rays. Different parts have different requirements for the kV value. For example, the wrist joint is generally required to be around 50kV, while the chest radiograph is selected to be around 60~70kV. The main reason is to choose different conditions according to the patient’s location and physical size, which is usually referred to as quality.
So what about “quantity”: to have penetrating power, there must be a certain amount of radiation, which is composed of milliamps and time. mA/s (mA/s) mA is inversely proportional to seconds. The longer the time, the smaller the mA used, and vice versa.
Depends on the location of the slice.
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