David H. Whittum;Steven W. Prince;John R. Adler, Jr.;James E. Clayton;John R. Adler; Jr.
发明人:
John R. Adler, Jr.,David H. Whittum,Steven W. Prince,James E. Clayton
申请号：
US13310582
公开号：
US09308395B2
申请日:
2011.12.02
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A radiation system includes a support, a capsule rotatably coupled to the support, a radiation source movably coupled to the capsule, wherein the radiation source is configured to provide a treatment radiation beam, and is capable of being turned on or off in response to a control signal, and a collimator located next to the radiation source, wherein the capsule defines a space for accommodating a portion of a patient, and includes a shielding material for attenuating radiation resulted from an operation of the radiation source, and wherein the shielding material is configured to limit a radiation exposure level to 5 mR/hr or less within 3 meters from an isocenter.
