Why are X-ray tubes often enclosed in a shockproof casing?

The primary reason X-ray tubes are often enclosed in a shockproof casing is to protect the operator from high-voltage shock. The operation of X-ray tubes involves high-voltage systems that can be dangerous if proper precautions are not taken. The casing acts as a safety barrier, shielding the operator from accidental contact with live electrical components and reducing the risk of electric shock.

While considerations like image quality, thermal regulation, and longevity of the tube might be important in the overall design and operation of radiographic equipment, the critical safety function of the shockproof casing is to ensure the wellbeing of personnel working with or near the X-ray machines. This safety feature is essential in maintaining a secure working environment in radiographic testing situations.