This Part of YY 0831 specifies the scope, terms, definitions, requirements, and test methods of the multi-source stereotactic radiotherapy system with gamma beam for head lesion. This Part applies to the multi-source stereotactic radiotherapy system with gamma beam for head lesion. The system simultaneously uses multiple 60Co sealed radioactive sources (it may be dynamic or static) to conduct beaming.Calculate the absorbed doses at 3 reference points. Calculate the relative deviation according to Formula (6); Where: IP a Relative deviation between focus planned dose and measured dose, %; P0a Planned dose at die body center (i.e., anbsp;...
|Title||:||YY 0831.1-2011: Translated English PDF of Chinese Standard YY0831.1-2011|
|Publisher||:||www.ChineseStandard.net - 2015-02-02|