Patent ID: 9694207
Date: 2017-07-04
CPC Classifications: A61N

Claim:
1. A control device for scanning electromagnet to be used for controlling a scanning electromagnet that is used for scanning irradiation so as to form a particle beam supplied from an accelerator into an irradiation field matched to a treatment plan, said control device for scanning electromagnet being placed under an environment where neutrons are produced and comprising: a command-value processing unit that generates a command value for driving the scanning electromagnet on a basis of the treatment plan, and outputs the generated command value in synchronization with the accelerator; and an error detection unit that detects a processing error in the command-value processing unit; wherein a circuit that constitutes at least a part of the command-value processing unit is made redundant, and the error detection unit detects occurrence of the processing error when outputs from the circuit made redundant are unmatched to each other.