The amount of CT radiation is 100 times higher than that of a chest X-ray. When taking a chest X-ray, the exposure is instantaneous and ends in one time, which is particularly fast and short, and the amount of radiation received by the body is also particularly small. When taking a chest CT, it is a continuous exposure process, which lasts about 10-15 seconds, so the amount of radiation from a chest CT is much higher than that from a chest X-ray, and the preliminary statistics should be about 100 times higher. However, for normal medical checkups, an occasional chest CT does not affect a person’s health, so please rest assured.