Simulation of a programmed frequency shift near extraction from the Fermilab Booster

Title: Simulation of a programmed frequency shift near extraction from the Fermilab Booster

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Abstract

The longitudinal phase space program ESME has been used to simulate the effects of a linear shift in RF frequency away from that appropriate for the accelerator guide field. This shift takes place in the new Booster low level RF and is used to position the particle bunches in Main Ring buckets in a reproducible fashion. Shifts in frequency are found to generate synchrotron oscillations; however, the simulations show that these can be reduced to acceptable levels by introduction of jumps in RF phase preceding the programmed frequency changes. Lowering the RF voltage near extraction from the Booster, a desirable operational feature, has also been investigated.

Authors:: Lucas, P; Kerns, Q

Publication Date:: 1987-03-01

Research Org.:: Fermi National Accelerator Lab., Batavia, IL (USA)

OSTI Identifier:: 6506184

Report Number(s):: FNAL-TM-1445; CONF-870302-148
ON: DE87009029

DOE Contract Number:: AC02-76CH03000

Resource Type:: Conference

Resource Relation:: Conference: Particle accelerator conference, Washington, DC, USA, 16 Mar 1987; Other Information: Paper copy only, copy does not permit microfiche production. Original copy available until stock is exhausted

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; PARTICLE BOOSTERS; COMPUTERIZED SIMULATION; FREQUENCY SELECTION; PHASE SPACE; SYNCHROTRON OSCILLATIONS; BEAM DYNAMICS; MATHEMATICAL SPACE; OSCILLATIONS; SIMULATION; SPACE; 430200* - Particle Accelerators- Beam Dynamics, Field Calculations, & Ion Optics

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                    Lucas, P, and Kerns, Q. Simulation of a programmed frequency shift near extraction from the Fermilab Booster.  United States: N. p., 1987. 
        Web.

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                    Lucas, P, & Kerns, Q. Simulation of a programmed frequency shift near extraction from the Fermilab Booster.  United States.

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                    Lucas, P, and Kerns, Q. Sun .  
        "Simulation of a programmed frequency shift near extraction from the Fermilab Booster".  United States.  https://www.osti.gov/servlets/purl/6506184.

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@article{osti_6506184,

  title        = {Simulation of a programmed frequency shift near extraction from the Fermilab Booster},

  author       = {Lucas, P and Kerns, Q},

  abstractNote = {The longitudinal phase space program ESME has been used to simulate the effects of a linear shift in RF frequency away from that appropriate for the accelerator guide field. This shift takes place in the new Booster low level RF and is used to position the particle bunches in Main Ring buckets in a reproducible fashion. Shifts in frequency are found to generate synchrotron oscillations; however, the simulations show that these can be reduced to acceptable levels by introduction of jumps in RF phase preceding the programmed frequency changes. Lowering the RF voltage near extraction from the Booster, a desirable operational feature, has also been investigated.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/6506184},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1987},

  month        = {3}

}

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