Precise Intensity Monitoring at CRYRING@ESR: On Designing a Cryogenic Current Comparator for FAIRHYBRID

The Cryogenic Current Comparator (CCC) is a superconducting device in use at metrological institutes to compare electric currents with highest precision. At CRYRING@ESR it was used as a non-interceptive beam diagnostic device to monitor deviations of the DC beam current with a resolution of nano-ampere. This is particularly useful at small de-bunched ion currents below 1 μA where a calibrated absolute beam intensity is difficult to obtain across different ion species and beam conditions.

https://gsi-fair.zoom.us/j/63856816325
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