During an x-ray exposure, the operator should stand______feet away from the source of radiation.

The recommended distance for an operator to stand away from the source of radiation during an x-ray exposure is based on the principle of reducing radiation exposure. Standing at least 6 feet away helps minimize the risk of radiation exposure to the operator.

The purpose of this distance is to take advantage of the inverse square law, which states that the intensity of radiation reduces significantly as the distance from the source increases. By maintaining a distance of 6 feet, the operator can greatly lower their chances of receiving a potentially harmful dose of radiation while still being close enough to monitor the x-ray procedure effectively.

Other distances listed, such as 4 feet, 8 feet, and 10 feet, may not provide the same level of safety as the recommended 6 feet. While standing further away (10 feet) may offer additional safety, it may not be practical during the operation of dental x-ray equipment, making 6 feet a balanced choice between safety and operational efficiency.