Abstract
Some patients kept away from portable x-ray camera when taking photographs in our hospital ward, they said "I was irradiated!" even at their far stand points. Most people were afraid of irradiation and felt anxiety about taking X-ray photographs. For one reason that miserable Chernobyl nuclear power plant accident occurred on April 26, 1986. However, taking x-ray photographs is no risky as they anxiously think. So we investigated into the influence of irradiation by taking a chest and abdominal x-ray photographs. In fact, a portable x-ray camera emitted little radiation. Taking photographs with portable camera was almost no risk, if the people near the camera keep away from 2 meter at chest and 3 m at abdominal setting. From these points of view, the visitor need not go out from the room except merely want to leave with anxiety.
