X-ray or gamma ray systems or devices – Beam control – Collimator
Patent
1996-07-23
1998-05-05
Wong, Don
X-ray or gamma ray systems or devices
Beam control
Collimator
378147, 378148, 378153, G21C 102
Patent
active
057487030
ABSTRACT:
This invention relates to a novel dynamic collimator which can be adapted to a linear accelerator (LINAC). The collimator is such that the shape of the jaw arrangement, and therefore the collimated beam of X radiation from the LINAC, can be changed and conformed in a very flexible and versatile way. In a preferred embodiment of the invention, the collimator has three pairs of opposing, parallel jaws, each pair of jaws being moveable, under control, to open and close in variable amounts. Each set of pairs may be oriented at a 60.degree. orientation such that the open transmission area of the collimator has a hexagonal shape. Variations on this sixth jaw collimator, including larger numbers of jaws, also are included within the invention. The variety of shapes with such a variable hexagonal collimator is enormous. Irregular target volumes can be filled by beams of radiation that can be nested because of the hexagonal nature of the jaw configuration, giving it added conformal shaping capabilities. Variable angles of orientation between the jaw pairs are also included within the invention so that rectangular shapes may also be achieved.
REFERENCES:
patent: 5237599 (1993-08-01), Gunji et al.
Birch Richard J.
Wong Don
LandOfFree
Dynamic collimator for a linear accelerator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dynamic collimator for a linear accelerator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic collimator for a linear accelerator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-63726