Title :
Experimental characterization of permanent magnets used in periodic structures
Author :
Sircilli, Francisco ; Serrão, Valdir A. ; Passaro, Angelo ; Stopa, Carlos R S ; Cardoso, José R.
Author_Institution :
Centro Tecnico Aeroespacial, Sao Jose dos Campos, SP, Brazil
fDate :
5/1/2001 12:00:00 AM
Abstract :
In a periodic structure, the magnetic flux density profile of a hybrid undulator depends strongly on the characteristics of its permanent magnets. A simple procedure to select the best permanent magnets for periodic magnetic structures is presented here. We used a very simple apparatus for the magnetic field measurements. We tested this by assembling periodic structure prototypes formed by brick-shaped permanent magnets
Keywords :
free electron lasers; laser accessories; magnetic flux; permanent magnets; wigglers; brick-shaped permanent magnets; free electron laser; hybrid undulator; magnetic field measurements; magnetic flux density profile; periodic magnetic structures; periodic structures; permanent magnets; Assembly; Free electron lasers; Magnetic field measurement; Magnetic fields; Magnetization; Periodic structures; Permanent magnets; Prototypes; Testing; Undulators;
Journal_Title :
Magnetics, IEEE Transactions on
