Patent ID: 6897644

Claim:
An apparatus for monitoring a signal that exhibits sudden, grossly excessive peak values related to an instantaneous fast extraction particle beam pulse of a synchrotron, comprising: a first detector ( 10 ) to which the signal is supplied at an input side and which, when the signal exceeds a predetermined first threshold value, emits a trigger signal at an output side; a second detector ( 20 ) to which the signal is also supplied at an input side and which, when the signal exceeds a predetermined second threshold value, emits an exceed signal at an output side; a signal generator ( 30 ) to which the output of the first detector ( 10 ) is supplied at an input side and which starts to emit a window signal of a predetermined duration as soon as the trigger signal appears at an input side; and an AND gate ( 40 ) to which the output of the second detector ( 20 ) and the output of the signal generator ( 30 ) are supplied at an input side and which generates a peak-detection signal at an output side when the window signal and the exceed signal are present at its input side.