Achromatic and uncoupled medical gantry

Details Achromatic and uncoupled medical gantry Achromatic and uncoupled medical gantry

2009-03-13

2011-11-22

Kim, Robert (Department: 2881)

Radiant energy

With charged particle beam deflection or focussing

Magnetic lens

C250S492100, C250S492300, C250S505100, C250S3960ML, C315S500000, C315S501000, C315S503000

Reexamination Certificate

active

08063381

ABSTRACT:
A medical gantry that focus the beam from the beginning of the gantry to the exit of the gantry independent of the rotation angle of the gantry by keeping the beam achromatic and uncoupled, thus, avoiding the use of collimators or rotators, or additional equipment to control the beam divergence, which may cause beam intensity loss or additional time in irradiation of the patient, or disadvantageously increase the overall gantry size inapplicable for the use in the medical treatment facility.

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