Back to results
US 11,633,628 B2Granted
Monitor for high dose rate electron therapy, system and method
AssigneeVarian Medical Systems, Inc.
InventorDaniel Pawlak
Life of this patent
Estimating the term…
Abstract
A radiotherapy dose rate monitor system includes an electrode configured to be impinged by radiotherapy radiation, and a current measurement circuit configured to measure a current through the electrode. An emission of secondary electrons emitted from the electrode provides a majority of current through the electrode.
Claims20
A radiotherapy dose rate monitor system comprising:
- an electrode configured to be impinged by radiotherapy radiation;
- a current measurement circuit configured to measure a current through said electrode, and
- wherein emission of secondary electrons emitted from said electrode provides a majority of current through said electrode.
A radiotherapy dose rate monitor system comprising:
- an electrode configured to be impinged by radiotherapy radiation;
- a resistor coupled to said electrode and to relative ground;
- a voltage measurement device configured to measure a voltage through said resistor corresponding to a radiotherapy dose rate,
- wherein said dose rate monitor system is operable in a first mode or a second mode,
- wherein said first mode corresponds to a dose rate characteristic of FLASH radiotherapy, and
- wherein said second mode corresponds to a dose rate of less than 40 Gy/s.
3 more elements
A radiotherapy dose rate monitor system comprising:
- a first electrode;
- a first resistor configured to couple said first electrode to relative ground;
- a first voltage sensor configured to measure a first voltage across said first resistor,
- wherein said first voltage is indicative of a first radiation dose passing through said first electrode, and
- wherein said radiotherapy dose rate monitor system is configured to measure radiotherapy dose rates of greater than or equal to 40 Gy/s to an accuracy of better than 98% during patient treatment.
2 more elements
Dependencies are inferred from the claim text.