Young Kyung Lim,Jung Won Kwak,Yeon-Joo Kim,Sung Ho Moon,Dong Ho Shin,Se Byeong Lee,Kwanghyun Jo,Ui-Jung Hwang
申请号：
US14483466
公开号：
US20150202463A1
申请日:
2014.09.11
申请国别(地区):
US
年份:
2015
代理人:
摘要：
In an apparatus for laser alignment and a method of aligning laser using the same, the apparatus for laser alignment is used in a radiation therapy system. The radiation therapy system includes a rotatable gantry having a radiation source generating radiation, a radiation shaping unit and a crosshair indicating a radiation field center, a couch on which a patient is disposed and a laser device disposed adjacent to the gantry to irradiate a laser for aiming. A light source irradiates light being mounted in the gantry. The couch is disposed adjacent to the gantry. Position and direction of the couch are controllable. The apparatus for laser alignment includes the plural alignment marks spaced apart from each other to be projected, thereby simultaneously checking alignment status by the irradiation of the light in at least one direction and a level and a level adjusting part.
