Radiation therapy apparatus

Details Radiation therapy apparatus Radiation therapy apparatus

2008-02-22

2010-11-02

Song, Hoon (Department: 2882)

X-ray or gamma ray systems or devices

Beam control

Collimator

C378S065000, C378S153000

Reexamination Certificate

active

07826596

ABSTRACT:
A radiation therapy apparatus has a multi-leaf collimator device having a pair of collimator components which respectively comprise a plurality of leaves arranged close to one another such that the leaves face one another across an irradiation axis, and configured to set a desired irradiation field by individually moving the leaves. One of the collimator components is arranged with an offset with respect to the other collimator component, within a range of a leaf-width.

REFERENCES:
patent: 6814489 (2004-11-01), Jensen et al.
patent: 2005/0185766 (2005-08-01), Tsujita
patent: 07-067491 (1995-07-01), None
patent: 2002-210026 (2002-07-01), None
English language translation of JP07-067491B.

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