Corneliu Stefan PENCEA,Janus HARASIMOWICZ,Nikolas MARINOS,Julian Peter David BYRNE
申请号：
US15785344
公开号：
US20180117361A1
申请日:
2017.10.16
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A method for measurement of dose distribution in a radiotherapy apparatus includes providing a detector holder situated at least partially within a tank, the detector holder comprising a radio-opaque marker and a visual reference point, the marker and the reference point being separated and in a fixed spatial relationship to each other； locating the tank within a bore of the radiotherapy apparatus； rotating a gantry and monitoring the position of the detector holder with an imaging apparatus； vertically displacing the detector holder until the reference point is positioned at a desired level, and adding liquid to or removing liquid from the tank until the surface of the liquid is level with the reference point. Features of the detector holder and tank are also described.
