Title :
Tune control in the Fermilab Main Injector
Author :
Wu, G. ; Brown, B.C. ; Capista, D.P. ; Flora, R.H. ; Johnson, D.E. ; Martin, K.S.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
We describe methods used to measure and control tunes in the Fermilab Main Injector (FMI). Emphasis is given to software implementation of the operator interface, to the front-end embedded computer system, and handling of hysteresis of main dipole and quadrupole magnets. Techniques are developed to permit control of tune of the Main Injector through several acceleration cycles: from 8.9 GeV/c to 120 GeV/c, from 8.9 GeV/c to 150 GeV/c, and from 150 GeV/c to 8.9 GeV/c. Systems which automate the complex interactions between tune measurement and the variety of ramping options are described. Some results of tune measurements and their comparison with the design model are presented
Keywords :
accelerator control systems; computerised control; embedded systems; proton accelerators; synchrotrons; 8.9 to 150 GeV; Fermilab Main Injector; acceleration cycles; dipole magnets; front-end embedded computer system; quadrupole magnets; ramping options; software implementation; tune control; tune measurement; Acceleration; History; Lattices; Magnetic field measurement; Magnetic fields; Magnets; Particle beam injection; Particle beams; Physics; Protons;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.795331
