Medical radiation treatment appts. - has radiation sources distributed so that beams cross at tissue to be changed e.g. cancer, calculus

摘要

At least two beams of high energy waves or particles are directed to meet or cross at the substance or tissue zone to be treated without surgery. A drum-like housing (2) surrounds the patient (1). The radiation sources (3,4), as well as X-ray source (5) and detectors (6) are distributed around the drum wall. Optical deflectors (7) can be in the form of rotary mirrors or polygonal reflectors. The radiastors and rotatable and movable in all directions (4). The beams meet at a point of intersection (8) in the patient's body. ADVANTAGE - Can apply strong radiation without causing damage to surrounding tissue.