X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1997-10-16
2000-08-15
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Absorption
378206, A61N 510
Patent
active
061047783
ABSTRACT:
After a target region for an x-ray treatment is determined by a preliminary examination, a line which indicates the position and shape of this target region is marked on the patient's body by projecting a laser beam on such a line. This is accomplished by means of a laser light source and an optical system with two mirrors which are rotatable around mutually transverse axes of rotation. Thus, the region-indicating line can be made visible without causing the brightness of the environment to be reduced.
REFERENCES:
patent: 5080100 (1992-01-01), Trotel
Church Craig E.
Varian Systems, Inc.
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