A beam tracking of a compact storage ring using superconducting bending magnets

Tanaka, H; Nakanishi, T

doi:10.1063/1.1142660

Title: A beam tracking of a compact storage ring using superconducting bending magnets

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Abstract

The tolerances of imperfections of superconducting bending magnets in a compact storage ring have been estimated. The storage ring, which is under construction, is a race-tracked type with combined function bending magnets. A tracking code PROVIDENCE,'' which calculates a particle's orbit with a numerical integration of exact equations of motion has been used. The results of calculating dynamic apertures with modelized three-dimensional (3-D) magnetic fields show that multipole errors must be suppressed with (sextupole errors) {le}20(T/m{sup 2}), (octupole errors) {le}110(T/m{sup 3}), where the dynamic aperture is defined as a stable amplitude area with nominal aperture limitation in this paper. The dynamic aperture with actual magnetic fields has been also calculated. The result shows that the superconducting bending magnets have enough good field regions, and that the ring has a sufficient dynamic aperture: {vert bar}{ital x}{vert bar}{congruent}30 mm and {vert bar}{ital y}{vert bar}{congruent}50 mm.

Authors:

Tanaka, H; Nakanishi, T ^[1]

Advanced Electrotechnology Department, Central Research Laboratory, Mitsubishi Electric Corporation, 8-1-1 Tsukaguchi-honmachi, Amagasaki 661 (Japan)

Publication Date:: Wed Jan 01 00:00:00 EST 1992

OSTI Identifier:: 5521376

Resource Type:: Journal Article

Journal Name:: Review of Scientific Instruments; (United States)

Additional Journal Information:: Journal Volume: 63:1; Journal ID: ISSN 0034-6748

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; STORAGE RINGS; BEAM BENDING MAGNETS; BEAM DYNAMICS; APERTURES; COMPUTER CALCULATIONS; COMPUTERIZED SIMULATION; P CODES; SUPERCONDUCTING MAGNETS; COMPUTER CODES; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; EQUIPMENT; MAGNETS; OPENINGS; SIMULATION; SUPERCONDUCTING DEVICES; 430200* - Particle Accelerators- Beam Dynamics, Field Calculations, & Ion Optics; 430400 - Particle Accelerators- Storage Rings

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                    Tanaka, H, and Nakanishi, T. A beam tracking of a compact storage ring using superconducting bending magnets.  United States: N. p., 1992. 
        Web.  doi:10.1063/1.1142660.

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                    Tanaka, H, & Nakanishi, T. A beam tracking of a compact storage ring using superconducting bending magnets.  United States.  https://doi.org/10.1063/1.1142660

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                    Tanaka, H, and Nakanishi, T. 1992.  
        "A beam tracking of a compact storage ring using superconducting bending magnets".  United States.  https://doi.org/10.1063/1.1142660.

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@article{osti_5521376,

  title        = {A beam tracking of a compact storage ring using superconducting bending magnets},

  author       = {Tanaka, H and Nakanishi, T},

  abstractNote = {The tolerances of imperfections of superconducting bending magnets in a compact storage ring have been estimated. The storage ring, which is under construction, is a race-tracked type with combined function bending magnets. A tracking code PROVIDENCE,'' which calculates a particle's orbit with a numerical integration of exact equations of motion has been used. The results of calculating dynamic apertures with modelized three-dimensional (3-D) magnetic fields show that multipole errors must be suppressed with (sextupole errors) {le}20(T/m{sup 2}), (octupole errors) {le}110(T/m{sup 3}), where the dynamic aperture is defined as a stable amplitude area with nominal aperture limitation in this paper. The dynamic aperture with actual magnetic fields has been also calculated. The result shows that the superconducting bending magnets have enough good field regions, and that the ring has a sufficient dynamic aperture: {vert bar}{ital x}{vert bar}{congruent}30 mm and {vert bar}{ital y}{vert bar}{congruent}50 mm.},

  doi          = {10.1063/1.1142660},

  url          = {https://www.osti.gov/biblio/5521376},
  journal      = {Review of Scientific Instruments; (United States)},

  issn         = {0034-6748},

  number       = ,

  volume       = 63:1,

  place        = {United States},

  year         = {Wed Jan 01 00:00:00 EST 1992},

  month        = {Wed Jan 01 00:00:00 EST 1992}

}

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