Elizabeth BOWMAN,Roberto LUEVANO,Stephen MOHR,Cody HELLSTERN,Borislav DJUROVIC
申请号：
US15842693
公开号：
US20180161600A1
申请日:
2017.12.14
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A beam modifier shapes the distribution of a dose delivered to a target by a radiation beam emitted from a beam emitter of a radiotherapy device, particularly a beam that delivers a high radiation dose within a single, short period of time (e.g., less than a second). Elements of the beam modifier (e.g., rods) include material that can block or attenuate the beam. The elements can be dynamically and quickly configured to form an opening or transparent area through which a portion of the beam can pass unimpeded and to present different thicknesses of material to block or attenuate other portions of the beam, in this manner shaping the dose distribution at the target while protecting surrounding tissue.
