X-ray or gamma ray systems or devices – Beam control – Antiscatter grid
Patent
1998-03-04
2000-12-26
Bruce, David V.
X-ray or gamma ray systems or devices
Beam control
Antiscatter grid
378154, G21K 100
Patent
active
061671150
ABSTRACT:
By providing a movable grid for eliminating the scattered component of radiation entering a radiation image pickup unit and a controller for controlling the moving speed of the movable grid corresponding to variation of the intensity of the radiation, the grid can be controlled based on a predetermined radiation irradiating time.
REFERENCES:
patent: 4382184 (1983-05-01), Wernikoff
patent: 4803716 (1989-02-01), Ammann et al.
patent: 4829552 (1989-05-01), Rossi et al.
patent: 5379335 (1995-01-01), Griesmer et al.
patent: 5666395 (1997-09-01), Tsukamoto et al.
Bruce David V.
Canon Kabushiki Kaisha
Hobden Pamela R.
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