Title :
Chromaticity modelling in the Fermilab Main Ring
Author :
Goodwin, J.E. ; Pruss, S.M.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
As computer simulations of accelerators improve, it becomes important to measure the properties of existing machines better to verify that the simulations are indeed accurate. The Fermilab Main Ring magnets are known to be rich in harmonic content, but they were not individually measured. The authors have measured the nonlinear dependence of tune vs. momentum error and they interpret these data in terms of the octupole content of the main quadrupoles and the decapole content of the dipoles.<>
Keywords :
beam handling equipment; particle beam diagnostics; synchrotrons; Fermilab Main Ring; chromaticity modelling; computer simulations; decapole content; dipoles; harmonic content; magnets; nonlinear dependence; octupole content; quadrupoles; Computational modeling; Computer errors; Computer simulation; Current measurement; Eddy currents; Extraterrestrial measurements; Laboratories; Magnets; Particle beams; Position measurement;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164279
