Proton Meter for NAL External Beam Lines

Accurate beam intensity and total charge per accelerator pulse are important data for a number of experiments performed at NAL. The beam-current transformer and its electronics are operable in a beam intensity of 1010 protons, or more, delivered within a time interval of 100 ¿s. Special features of the design include both analog and digital outputs. The beam toroid is completely external to the vacuum pipe, giving optimum vacuum conditions. In situ test-signal injection and toroidalcore degaussing are incorporated.