| 摘要 |
A system is disclosed for producing images representing radiation dose distribution in order to verify the radiation dose applied to a large area. The system uses a phantom assembly (10) constructed of material that is radiological equivalent to live tissue. The phantom assembly has slits (32, 34 and 36) where radiation sensitive film can be inserted and can include a channel for an insertable radiation generating device (20). The treatment dose is then applied to the phantom and the radiation sensitive film records the dose. A CCD camera microdensitometer is then used to read the exposed radiation sensitive film. The CCD camera microdensitometer includes a computer system which processes the image to remove artifacts and generates isodose contours for the radiation treatment applied. In addition, several pieces of radiation sensitive film in different planes can be exposed and processed in order to produce images representing the radiation dose distribution in three dimensions.
|
