Magnetic Field Calculations for CESR-c Superferric Wiggler Magnet Designs
This page serves to catalog and archive results from magnetic field calculations of various CESR-c wiggler magnet designs obtained
from the
Vector Fields Software for
Electromagnetic Design (OPERA version 8.500 Size 3).
- Review talk (html, postscript, pdf) at the CESR-c Operations Review and Planning Meeting on 27 March 2003
- Talks at CESRc Working Group Meetings
- Bx vs x in Wiggler 10 Model and Effect of Azimuthal Tilt 6 February 2004
- Effect of Fwd/Bkwd Tilt and Wiggler 14 Coil Selection 16 January 2004
- Modelling Wigglers 10, 12, and 13 9 January 2004
- Modelling the Skew Quad Component 17 November 2003
- Comparison of Transfer Function Calculations and Progress Report on Injection Simulation 11 April 2003
- Search for Skew Quad Component in 7-Pole Wiggler: Effect of a Tilt 21 February 2003
- Wiggler Nr 3 Comparison to Measurements, Wiggler Nr 4 Coil Offsets, Effect of Increasing Single Pole Current by One Turn, Coil Extensions and Parabolic Coil Shapes 7 February 2003
- Predictions for Field Integrals in Wiggler Nr 3 31 January 2003
- Peak Fields and Trim Current for Wiggler Nr 2, Transfer Functions for Wiggler Nr 3 with Measured Coil Offsets 10 January 2003
- Predicted Field Integrals for Wiggler Nr 2, Transfer Functions for Wiggler Nr 2 at 1.9 T, Present Fit Function Disallows Skew Quad Component 6 December 2002
- Trim Currents for 7-Pole Wiggler Nr 2 and 8/8 Model of Skew Quad Component 22 November 2002 (This talk was prepared for a cancelled meeting.)
- Effects of Bolt and Dowel-Pin Holes in 8-Pole Model, New 7-pole 1.9 T Fit, Progress on 7-pole 8/8 Model 8 November 2002
- Linear Integrals for Skew Quad Components, Improved Field Calculation and 8-Pole Model including Dowel-Pin Holes 1 November 2002
- Geometrical Errors, Coil Deformation and Skew Quad Component 25 October 2002
- Geometrical Errors and Skew Quad Component, New Method of Field Calculation 18 October 2002
- Updated 8-Pole Design and First Model of Single-Pole Test Setup 13 September 2002
- 7-Pole Field Integral vs. Kick and 7-, 8-Pole Transfer Function Comparisons 23 August 2002
- Sign Mistake in BX, 8-Pole Designs, Complete Transfer Functions 16 August 2002
- 2-D Fourier Transforms of Wiggler Fields and Comparison of 3.5 mm and 3.6 mm End-Pole Lowerings 2 August 2002 (This talk was not held owing to time constraints)
- Trimming 7-pole and 8-pole fields and tracking results for peak fields of 1.7 T and 2.1 (2.3) T 9 July 2002
- 7-pole and 8-pole field calculations and fits for peak fields of 1.7 T and 2.1 T 28 June 2002
- 7-pole wiggler field boundary conditions and tracking results for 7-pole and 8-pole fields 24 May 2002
- Fourier transform of 7-pole field and 8-pole field calculations 3 May 2002
- 3-pole and 7-pole wiggler field calculations and MINUIT fit results 26 April 2002
- Progress report on 7-pole wiggler field calculations 12 April 2002
- Progress report on 3-pole and 7-pole wiggler field calculations 5 April 2002
- Wiggler field calculations 29 March 2002
- First results on wiggler field calculations with Vector Fields Software 22 March 2002
- Developmental Magnetic Field Calculations
A tabular summary of the pole geometries and currents for which field calculations have been performed is available in postcript and html formats.
- 7-Pole 40-cm Period Wiggler Design
- 8-Pole 40-cm Period Wiggler Design
- Wiggler Single-Pole Test Setup
- 3-Pole 40-cm Period Wiggler Design
- 3-D Graphics of Geometrical Design
- Standard Design and Current
- 3-Pole 20-cm Period Wiggler Design
- 3-D Graphics of Geometrical Design
- Standard Design and Current
- Studies of various modifications to permeability curves
- Comparison to field measurement on prototype
- Transfer Functions for 1.8 GeV Electrons Obtained from OPERA Tracking
The vertical scales for the plots of transfer functions
have been chosen to have the same span but
different midpoints for the four cases,
so the observed variation with x or y can be directly compared.
Comparisons of all transfer functions for the 7-pole and 8-pole fields.
Horizontal and vertical kicks and displacements as functions of x and y.
Curves for 7- and 8-pole fields shown together
- 7-, 8-Pole Transfer Function Comparison for 2.1 T Peak Field (Versions 26 and 20) [html, ps])
- 7-, 8-Pole Transfer Function Comparison for 1.9 T Peak Field (Versions 30 and 18) [html,ps]
- 7-, 8-Pole Transfer Function Comparison for 1.7 T Peak Field (Versions 28 and 12) [html,ps]
- Transfer Function Comparison for 2.1 T 7-Pole Field and 2.3 T 8-Pole Fields (Versions 26 and 10) [html,ps]
- Transfer Function Comparison for 2.1 T 8-Pole Field to that with new coil design (Versions 20 and 25) [html,ps]
- General Documentation
- Relevant Links
critten@lns.cornell.edu
Jim Crittenden
Wilson Synchrotron Laboratory
Room 212
Phone:(607) 255-4882
FAX:(607) 255-8062
Last modified 27 March 2003