Use of Permanent Magnets in Multiple Projects at CERN

In the past, the use of permanent magnets in the CERN Accelerator Complex was marginal. In the recent years, specific attention is being devoted to fit, where possible, permanent magnets in new projects either in case of consolidation or for the upgrade of existing accelerators and experimental areas. This paper describes and analyzes the design and manufacture of some of these projects, particularly the permanent-magnet quadrupoles with adjustable gradient installed in Linac4, a permanent sextupole magnet for the ASACUSA experiment, and a large dipole for the nTof experimental area.