System and method for radiation beam measurement normalization

摘要

A radiotherapy system includes a radiotherapy device, such as a LINAC, operable to direct a radiation beam from a head thereof during operation, a field detector positioned to be within the radiation beam during operation of the radiotherapy device and operable to generate a beam measurement signal, a reference detector positioned to be outside of the radiation beam during operation of the radiotherapy device and operable to generate a reference signal, and at least one computer in signal communication with the field detector and the reference detector and configured with software to normalize the beam measurement signal based on the reference signal and to output a normalized beam measurement.

主权项

1. A computer program product comprising a non-transient machine-readable medium storing instructions that, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
receiving a beam measurement signal from a field detector, the beam measurement signal being representative of a radiation beam directed from a head of a radiotherapy device during operation of the radiotherapy device; receiving a reference signal from a reference detector positioned outside of the radiation beam during operation of the radiotherapy device; and normalizing the beam measurement signal based on the reference signal.