X-ray or gamma ray systems or devices – Beam control – Collimator
Reexamination Certificate
2006-04-14
2009-12-01
Song, Hoon (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Collimator
C378S147000
Reexamination Certificate
active
07627089
ABSTRACT:
The invention is related to a method for producing a collimator comprising an X-ray transparent substrate. The innovative method comprises the steps of: forming a slit in the substrate, wherein the slit has first and second side walls; filling the slit with an X-ray absorbing material so that the absorbing material extends from the first side wall to the second side wall; removing part of the X-ray absorbing material thereby forming a second slit that extends from the remaining absorbing material to the second side wall; filling the second slit with X-ray transparent material; removing part of the X-ray transparent material, thereby forming a third slit extending from the remaining transparent material to the second side wall; and finally filling the third slit with X-ray absorbing material. In accordance with the present invention a collimator can be produced having any desired aspect ratio.
REFERENCES:
patent: 5581592 (1996-12-01), Zarnoch et al.
patent: 6556657 (2003-04-01), Tybinkowski et al.
patent: 2002/0064252 (2002-05-01), Igarashi et al.
patent: 2005/0111627 (2005-05-01), Leppert
patent: 2005/0243422 (2005-11-01), Distler et al.
International Type Search Report for corresponding Swedish Application No. 0600694-4 dated Sep. 19, 2006.
Harness & Dickey & Pierce P.L.C.
Song Hoon
XCounter AB
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