| 摘要 |
A general purpose, re-usable, multiple-leaf radiation intensity modulation compensator device comprising of multiple layers (14, 24, 34,...N4) that allows manual and/or systematically controlled radiation intensity as a function of position in the cross-section of a radiotherapy beam (2), providing both field shape and cross-field intensity modulation (101) for photon (X-ray and gamma -ray) sources. |
