Back to results
US 9,849,307 B2Granted
System and method for dose verification and gamma ray imaging in ion beam therapy
AssigneeThe Regents of the University of California
InventorLucian Mihailescu
Life of this patent
Estimating the term…
Abstract
This disclosure provides systems, methods, and apparatus related to ion beam therapy. In one aspect, a system includes a position sensitive detector and a collimator. The position sensitive detector configured to detect gamma rays generated by an ion beam interacting with a target. The collimator is positioned between the target and the position sensitive detector. The collimator includes a plurality of knife-edge slits, with a first knife-edge slit intersecting with a second knife-edge slit.
Claims20
A system comprising:
- a position sensitive detector configured to detect gamma rays generated by an ion beam interacting with a target;
- and
- a collimator positioned between the target and the position sensitive detector, the collimator including a first plurality of knife-edge slits and a second plurality of knife-edge slits, the first plurality of knife-edge slits being substantially parallel to one another, the second plurality of knife-edge slits being substantially parallel to one another, the first plurality of knife-edge slits not being parallel to the second plurality of knife-edge slits, a first knife-edge slit of the first plurality of knife-edge slits intersecting with a first knife-edge slit of the second plurality of knife-edge slits at an angle other than 90°.
A method comprising:
- providing a system including:
- a position sensitive detector configured to detect gamma rays generated by an ion beam interacting with a target;
- and
- a collimator positioned between the target and the position sensitive detector, the collimator including a first plurality of knife-edge slits and a second plurality of knife-edge slits, the first plurality of knife-edge slits being substantially parallel to one another, the second plurality of knife-edge slits being substantially parallel to one another, the first plurality of knife-edge slits not being parallel to the second plurality of knife-edge slits, a first knife-edge slit of the first plurality of knife-edge slits intersecting with a first knife-edge slit of the second plurality of knife-edge slits at an angle other than 90°;
- detecting the gamma rays with the position sensitive detector to generate a data set;
- and
- generating a two-dimensional image of emission of the gamma rays from the target with calculations using the data set.
4 more elements
A collimator comprising:
- a first plurality of knife-edge slits;
- and
- a second plurality of knife-edge slits, the first plurality of knife-edge slits being substantially parallel to one another, the second plurality of knife-edge slits being substantially parallel to one another, the first plurality of knife-edge slits not being parallel to the second plurality of knife-edge slits, a first knife-edge slit of the first plurality of knife-edge slits intersecting with a first knife-edge slit of the second plurality of knife-edge slits at an angle other than 90°.
Dependencies are inferred from the claim text.