Safety Notice for Clinac® C-Series and Novalis Tx, Varian medical systems
2009.12.09
Product group Radiotherapy / Radiation protection
Reference 04062/09
Varian medical systems has issued a field safety notice concerning a problem for treating with symmetric electron beam with Clinac® C-Series and Novalis Tx. An anomaly was discovered in which, under certain circumstances of control circuit adjustments and component failure, a C-Series Clinac can beam on with an asymmetric electron beam, which is undetected by the interlocks intended to prevent it.