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US 2023/0210476 A1Published application
Acquisition of proton computed tomography images
AssigneeRhode Island Hospital
InventorUlrich LANGNER
Life of this patent
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Abstract
A method includes providing a proton computed tomography (CT) scanner, and measuring sigma with a scintillator screen at an exit beam for each pencil beam scanned across an object for each gantry angle necessary to determine a total energy loss as the beam traverses an object of unknown thickness or material.
Claims5
A method comprising:
- providing a proton computed tomography (CT) scanner;
- and
- measuring sigma with a scintillator screen at an exit beam for each pencil beam scanned across an object for each gantry angle necessary to determine a total energy loss as the beam traverses an object of unknown thickness or material.
A method comprising:
- providing a proton computed tomography (CT) scanner;
- for a proton pencil beam of known energy entering an object, measuring a sigma at a beam exit with a scintillator screen;
- modeling sigma for proton beams traversing objects of different thickness and composition with a Monte Carlo model;
- establishing correlations with the exiting energy of the beam;
- scanning the beam over the object in a plane and over 360 degrees around the object;
- measuring the sigma of each pencil beam at the exit;
- and
- determining a total energy loss for each beam path.
5 more elements
Dependencies are inferred from the claim text.