According to NCRP regulations, what is the maximum allowable leakage radiation from an x-ray tube?

The maximum allowable leakage radiation from an x-ray tube, as set by the National Council on Radiation Protection and Measurements (NCRP) regulations, is indeed 100 mR/h at a distance of one meter from the x-ray tube. This standard is in place to ensure the safety of patients and healthcare personnel by limiting the amount of radiation exposure to individuals who are not directly receiving the procedure.

Radiation leakage refers to the x-ray emissions that escape directly from the x-ray tube housing rather than through the collimated beam intended for the patient. By setting this limit, NCRP aims to keep unnecessary radiation exposure as low as reasonably achievable, thereby protecting individuals from potential radiation-related health risks.

The regulation is part of a broader framework that includes other safety measures and guidelines in diagnostic radiology and radiation therapy, emphasizing the importance of monitoring and maintaining equipment to prevent excess radiation exposure.