What is the maximum permissible leakage radiation from a diagnostic x-ray tube at 1 meter from the housing?

The maximum permissible leakage radiation from a diagnostic x-ray tube at a distance of 1 meter from its housing is set at 100 mR per hour. This limit is established to ensure the safety of both patients and healthcare workers by minimizing their exposure to unnecessary radiation during x-ray procedures.

Diagnostic x-ray tubes are designed with protective shielding to contain as much of the radiation as possible. The regulatory guidelines specify this leakage limit to account for any radiation that escapes the housing while ensuring that the risk of harm due to radiation exposure remains low. The standard operates under the principle of radiation safety, which emphasizes the importance of keeping exposure as low as reasonably achievable (ALARA).

Other potential options like 50 mR, 200 mR, and 25 mR per hour do not align with established regulations and safety standards in the field of radiology, which is why they are not considered correct responses to this question. Understanding these standards is crucial for maintaining safe practices in medical imaging.