Precision dosimetry in an intensity modulated radiation treatment system

US6240162A · kind A · utility

Assignee

• Siemens Medical Systems,Inc. · US

Inventors

• Francisco Miguel Hernandez-Guerra · Concord, US
• Edward Lewis Calderon · Pittsburg, US
• Simon John Forknall · Concord, US
• David L. Pond · Novato, US
• Hussein Alaifai · Pleasant Hill, US
• Randall V. Tarr · Concord, US

Key dates

• Filing date: Oct 23, 1998
• Grant date: May 29, 2001
• Expiry date: Oct 23, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N5/1048
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system and method for radiation therapy delivery. Known errors are compensated for by applying an offset factor to the dose at the start of the beam cycle. According to one embodiment of the invention, a dosimetry controller is configured to provide the offset connection and sense radiation on (RAD ON) and monitor the dose rate at the beginning of the beam cycle.