Water tank apparatus
AssigneeElekta Limited
InventorNikolas Marinos
Life of this patent
Estimating the term…
Abstract
A water tank apparatus for use with a radiotherapy system, comprising a base, side walls, end walls, and a top wall, together defining a tank structure, wherein an aperture is defined in the top wall near one end wall, and an upstanding rim surrounding the aperture; and a sensor mounting body fixed within the tank structure, and having formations by which a radiation sensor can be located in a fixed position within the tank structure so as to detect radiation at a point equidistant from the side wall and top wall and base.
Claims14
A water tank apparatus for use with a radiotherapy system, comprising:
- a base, a first side wall and an opposing second side wall, a first end wall and an opposing second end wall, and a top wall, wherein the first end wall, the second end wall, the first side wall, and the second side wall extend between the base and the top wall to define a tank structure, wherein an aperture is defined in the top wall adjacent to at least one of the first end wall or the second end wall, and wherein an upstanding rim surrounds the aperture;
- and
- a sensor mounting body fixed within the tank structure configured to position a sensor measurement point of a radiation sensor at a predetermined fixed position within the tank structure that is located at a point equidistant from the first side wall, the second the side wall, the top wall, and the base to detect radiation.
A method of detecting radiation from a radiotherapy system, comprising:
- connecting a dosimeter sensor to an apparatus, the apparatus including:
- a base, a first side wall, a second side wall, a first end wall, a second end wall, and a top wall, together defining a tank structure, wherein an aperture is defined in the top wall adjacent to at least one of the first end wall or the second end wall, and an upstanding rim surrounding the aperture;
- and
- a sensor mounting body fixed within the tank structure, the sensor mounting body configured to position a sensor measurement point of a radiation sensor, the radiation sensor located in a fixed position within the tank structure such that the sensor measurement point of the radiation sensor is located at a point equidistant from the first side wall, the second side wall, the top wall, and the base;
- and wherein the dosimeter sensor is connected to the sensor mounting body;
- filling the tank structure with water to a level within the upstanding rim that is higher than the top wall;
- positioning the apparatus in the radiotherapy system such that the radiation detection point is located at an isocentre of a radiation beam of the radiotherapy system;
- measuring the radiation with the beam directed through the top wall and the base;
- and
- measuring the radiation with the beam directed through at least one of the first side wall or the second the side wall.
Dependencies are inferred from the claim text.