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Title: 3D field harmonics

We have developed an harmonic representation for the three dimensional field components within the windings of accelerator magnets. The form by which the field is presented is suitable for interfacing with other codes that make use of the 3D field components (particle tracking and stability). The field components can be calculated with high precision and reduced cup time at any location (r,{theta},z) inside the magnet bore. The same conductor geometry which is used to simulate line currents is also used in CAD with modifications more readily available. It is our hope that the format used here for magnetic fields can be used not only as a means of delivering fields but also as a way by which beam dynamics can suggest correction to the conductor geometry. 5 refs., 70 figs.
Authors:
; ;
Publication Date:
OSTI Identifier:
5232433
Report Number(s):
LBL-30313; SC-MAG--328
ON: DE92000657; TRN: 91-028739
DOE Contract Number:
AC03-76SF00098
Resource Type:
Technical Report
Research Org:
Lawrence Berkeley Lab., CA (United States)
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; MAGNETIC FIELDS; HARMONICS; BEAM DYNAMICS; MAGNETIC DIPOLES; MAGNETS; THREE-DIMENSIONAL CALCULATIONS; DIPOLES; MULTIPOLES; OSCILLATIONS 430200* -- Particle Accelerators-- Beam Dynamics, Field Calculations, & Ion Optics