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

Journal Article · Wed Jan 01 00:00:00 EST 1992 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1142660· OSTI ID:5521376

Tanaka, H; Nakanishi, T ^[1]

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

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.

• OSTI ID: 5521376
• Journal Information: Review of Scientific Instruments; (United States), Vol. 63:1; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

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