Radiotherapy apparatus with two light beam localizers

Details Radiotherapy apparatus with two light beam localizers Radiotherapy apparatus with two light beam localizers

1979-08-24

1981-03-17

Anderson, Bruce C.

Radiant energy

Means to align or position an object relative to a source or...

250492B, G01N 2100, G01N 2300

Patent

active

042569664

ABSTRACT:
The radiation emitting apparatus contains a radiation source which projects a beam of radiation along a central axis onto a surface to be irradiated. There are provided a first and a second light-beam localizer for emitting a first and a second plane light fan, respectively, towards the surface to be irradiated. The second light fan intersects the first light fan in an intersecting line which coincides with the central axis of the emitted radiation. A scale may be projected towards the surface along with one of the light fans. In a preferred embodiment the radiation source is an electron accelerator and the surface is the skin of a patient to be treated.

REFERENCES:
patent: 2204465 (1940-06-01), Baier
patent: 2474422 (1959-05-01), Reininger
patent: 2887586 (1959-05-01), Reininger
patent: 3757118 (1973-09-01), Hodge
patent: 4123660 (1978-10-01), Horwitz
patent: 4132900 (1979-01-01), Smith et al.

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