Title :
FNAL Main Injector γt-jump system beamtube design
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
The design of the FNAL Main Injector γt-jump system calls for a special beamtube that is to be placed inside the pulsed magnets. The requirements for this beamtube include: an elliptical shaped tube that mates with the existing vacuum system, high electrical resistivity for reducing the eddy current effects, high strength for withstanding the vacuum load, and a design that facilitates simple fabrication and installation. Inconel 718 was selected to meet these criteria. Results obtained from analytical calculations, 2-D and 3-D finite element modeling, and testing of prototypes were in general agreement. The design process, analysis results, and final specifications are discussed
Keywords :
accelerator magnets; beam handling equipment; electromagnets; finite element analysis; particle beam injection; proton accelerators; synchrotrons; 2D finite element modeling; 3D finite element modeling; CrNi; FNAL Main Injector γt-jump system beamtube; Inconel 718; analytical calculations; eddy current effects; elliptical shaped tube; final specifications; prototypes testing; pulsed magnets; Eddy currents; Electric resistance; Electron tubes; Fabrication; Finite element methods; Magnets; Process design; Prototypes; Testing; Vacuum systems;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.753287
