Operation of a Cryogenic Current Comparator for continuous beam intensity measurements in the Antiproton Decelerator

by Miguel Filipe Abreu Fernandes (University of Liverpool (GB))

Friday 30 Nov 2018, 16:00 → 18:00 Europe/Zurich

866/2-D05 (CERN)

Low-intensity charged particle beams are particularly challenging for non-perturbative beam diagnostics due to the small amplitude of induced electromagnetic fields. In the Antiproton Decelerator (AD) and Extra Low ENergy Antiproton (ELENA) rings at CERN, an absolute intensity measurement of circulating beams with about 5x107 antiprotons is essential to monitor operational efficiency. This seminar will cover the functioning and design of an operational Cryogenic Current Comparator (CCC) monitor based on Superconducting QUantum Interference Device (SQUID) for current and intensity monitoring in the AD. Such a system, relying on a stand-alone cryogenic infrastructure based on a pulse-tube cryocooler, has been installed in the AD, and its system performance will also be presented.

Miguel's Farewell will take place after the seminar !

 

20181130_BI-seminar.pdf

20181130_BI-seminar.pptx