KNOX CHRISTOPHER,BOURNE DUNCAN,OVERWEG JOHAN,RIETMA JAN
申请号：
IN4945/CHENP/2013
公开号：
IN2013CN04945A
申请日:
2013.06.24
申请国别(地区):
IN
年份:
2016
代理人:
摘要：
This application deals with practical problems relating to the delivery of power to a radiotherapeutic source that is being operated in conjunction with a magnetic imaging device. Given that the source needs to rotate around the patient this power will usually be delivered by way of a slip ring arrangement that may create stray magnetic fields that degrade the image quality. We therefore provide a radiotherapeutic apparatus comprising a patient support magnetic coils disposed around the patient support for creating a magnetic field therewithin a radiation source producing a beam of radiation directed toward the patient support and mounted on a rotatable support thereby to rotate the radiation source around the patient support a slip ring for conveying electrical power to the radiation source and located around the patient support including at least one electrical interruption therein. This creates a slip ring in which there is no continuous circumferential path and one in which the current is therefore forced to take a route via one side or the other. A corresponding treatment planning apparatus and method of generating a treatment plan are also disclosed.
