High kilovolt photography conditions

The conditions for high-kilovolt photography are as follows:

High-kilovolt photography is a special X-ray photography method that uses higher tube voltage (above 120kV) to produce higher energy Big X-ray. This type of X-ray can penetrate thicker tissues and obtain X-ray images that display rich levels within a smaller density range. The following are the conditions for high-kilovolt photography:

High-kilovolt tube voltage: High-kilovolt photography requires the use of tube voltages above 120kV. This is because a higher tube voltage can produce X-rays with greater energy, allowing them to penetrate thicker tissue and obtain clearer images.

Appropriate exposure time: Exposure time is an important factor affecting the amount of X-rays. When the tube voltage is constant, an exposure time that is too long will result in excessive accumulation of X-rays and blurred images; an exposure time that is too short will result in insufficient X-rays and unclear images. Therefore, appropriate exposure time needs to be selected.

Appropriate focal distance: The focal distance refers to the distance between the X-ray tube and the film. This distance will affect the distribution of X-rays and the quality of the image. Generally speaking, high-kilovolt photography requires a smaller focal length to obtain a more uniform X-ray distribution.

Appropriate filters: High-kilovolt photography requires the use of filters to filter out low-energy X-rays to improve image quality. Commonly used filters include aluminum filters, copper filters, etc. It is necessary to select the appropriate filter according to the specific situation.

Appropriate irradiation field and exposure conditions: The irradiation field refers to the range of X-ray irradiation, and the exposure conditions include parameters such as irradiation field and tube current. These factors will affect the dose and distribution of X-rays, and appropriate irradiation fields and exposure conditions need to be selected.

In short, high-kilovolt photography is a special X-ray photography method. It is necessary to select appropriate conditions such as tube voltage, exposure time, focal distance, filter, and irradiation field in order to obtain high-quality X-ray images.