What is the maximum permissible leakage exposure from the radiographic tube housing?

The maximum permissible leakage exposure from the radiographic tube housing is set to ensure the safety of both patients and healthcare workers by limiting radiation exposure. The correct answer indicates that the allowable level of leakage radiation is 1 mGya/hour at a distance of 1 meter from the tube housing.

This standard reflects the regulatory limits established to minimize unnecessary radiation exposure. The designation of 1 mGya/hour signifies a safe threshold, emphasizing the importance of controlling radiation emission from the equipment when it is in use or even when it is off. Staying within this limit protects individuals from the potential harmful effects of ionizing radiation over time, particularly in environments where multiple exposures might occur.

In contrast, the other options represent much higher levels of exposure, which would not comply with safety regulations designed to ensure minimal risk to personnel and patients. Hence, understanding the significance of the permissible leakage limit is critical for maintaining a safe working environment in radiographic settings.