Method of calibrating a radiation therapy system

Details Method of calibrating a radiation therapy system Method of calibrating a radiation therapy system

2011-05-03

2011-05-03

Thomas, Courtney (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Absorption

C378S205000

Reexamination Certificate

active

07936859

ABSTRACT:
The present invention concerns a method, a system, a measurement tool and computer readable medium for determining a predetermined position of a positioning system in a radiation therapy system comprising a radiation therapy unit relatively a fixed radiation focus point of the radiation therapy unit. The method comprises positioning (73) a diode element, obtaining (75) measurement data at each of a predetermined number of measurement points from a radiation intensity curve, determining (76) a three-dimensional centre coordinate of the obtained coordinates, and determining (76) the predetermined position of a patient positioning unit (20) relatively to a fixed focus point of a radiation unit (10) using the determined three-dimensional centre coordinate.

REFERENCES:
patent: 4780898 (1988-10-01), Sundqvist
patent: 5792146 (1998-08-01), Cosman
patent: 2005/0109939 (2005-05-01), Engler et al.
patent: 0514971 (1992-11-01), None
patent: WO-2006/108634 (2006-10-01), None

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