Modern high-performance angle measuring systems based on monolithic optics [Invited].

We describe modern angle measuring systems based on monolithic optics and modern information theory. These systems have a large field of view, no moving parts, small size, low weight, and the lowest possible costs in high-volume applications. In addition, the accuracy and precision of these angle measuring systems can be on the order of arc seconds or micro radians.

A guide to design of radiation therapy facilities.

The design technique outline provides the information needed to develop a layout for a new or renovated radiation therapy department. The department described is a medium-sized facility with two megavoltage linear accelerators and a single simulator. The plans for an expansion to include another linear accelerator and a neutron generator also are presented.