A CCD camera probe for a superconducting cyclotron

摘要

The authors developed a probe for a K1200 superconducting cyclotron based on a charge coupled device (CCD) TV camera that works in a 6 T magnetic field. The camera looks at the beam spot on a scintillating screen. The TV image is processed by a frame grabber that digitizes and displays the image in pseudocolor in real time. This probe has much better resolution that traditional probes. Beams can be seen with total currents as low as 0.1 pA, with a position resolution of about 0.05 mm.