The latitude is the range between the minimum and maximum x-ray exposure to an image receptor that yields a diagnostic image of structures.

A lead apron is a shield of lead and rubber, used to protect patients and staff. This apron protects the reproductive and other vital body organs against high exposure of ionizing radiation.

The thickness of lead affording the same attenuation, under specified conditions, as the material in question. Used as shielding value for e.g. control windows, protective wear, etc.

A leaded glove is used to reduce radiation hazards. Leaded gloves made of materials containing metallic lead or lead compounds, a radiation absorbing material.

See also Glove-Box, Absorber, Radiation Shielding, and Lead Equivalence.

Leakage radiation is all radiation escaping from within the source assembly except for the useful beam. It is primarily controlled through the design of the tube housing and proper collimator filtering.