A simple eye-lens shielding technique compatible with independent jaws of a linear accelerator.

A technique, compatible with accelerators having independent collimators, is presented, which greatly simplifies alignment of pencil eye-lens shields. The patient is placed so that the eye to be shielded is on the central axis of the beam and the accelerator's collimators are adjusted independently to define the field. A divergent lead shield 14 cm long is… CONTINUE READING