X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1993-06-09
1995-02-28
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Absorption
378150, A61N 510
Patent
active
053944526
ABSTRACT:
A radiation therapy apparatus includes a compensator with moving leaves to attenuate a radiation beam and a compensator verification system to determine if the attenuating leaves are moving in accordance with desired position signals. Two radiation intensity monitoring chambers, one chamber on either side of a patient within a radiation beam, produce beam fluence data used by a computer to construct radiation absorption images and to evaluate the functionality of the compensator. The absorption image can be used for both radiation dose verification and planning of suitable subsequent therapy sessions.
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Holmes Timothy
Mackie Thomas R.
Swerdloff Stuart
Church Craig E.
Wisconsin Alumni Research Foundation
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