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Orbit Measurement and Correction

  • Michiko G. Minty
  • Frank Zimmermann
Part of the Particle Acceleration and Detection book series (PARTICLE)

Abstract

In practice, there are many uncertainties whose presence must be appreciated when correcting the beam orbit in both linear and circular accelerators. Such uncertainties include the variations in the electronic and/or mechanical centers of the beam position monitors (BPMs), in the magnetic center of the quadrupoles (inside which the position monitors are often mounted), or in the electromagnetic center of accelerating structures. Consider the case illustrated in Fig. 3.1.

References

  1. 1.
    J. Turner: private communication (1998)Google Scholar
  2. 2.
    D. Robin, G. Portmann, L. Schachinger: Automated Beam Based Alignment of the ALS Quadrupoles. SLAC internal report, NLC-Note 18 (1995)Google Scholar
  3. 3.
    R. Brinkmann, M. Böge: Beam-Based Alignment and Polarization Optimization in the HERA Electron Ring. In: Proc. of EPAC 94, London, 1994 ( World Scientific, Singapore 1994 ) p. 938Google Scholar
  4. 4.
    J. Corbett, R.O. Hettel, H.-D. Nuhn: Quadrupole Shunt Experiments at SPEAR. In: Proc. of 7th Beam Instrumentation Workshop (BIW96), Argonne, Illinois, 1996Google Scholar
  5. 5.
    P. Emma: Beam-Based Alignment of Sector-1 of the SLAC Linac. In: Proc. of EPAC 92, Berlin, 1992 (Ed. Frontieres, Gif-sur-Yvette 1992) and SLAC-PUB5787Google Scholar
  6. 6.
    I. Reichel: Beam Position Measurement by Modulation of Quadrupole Strengths. CERN SL note/95–50 (1995)Google Scholar
  7. 7.
    M. Kikuchi, K. Egawa, H. Fukuma, M. Tejima: Beam-Based Alignment of Sextupoles with the Modulation Method. In: Proc. of 1995 IEEE PAC, Dallas, 1995 ( IEEE, Piscataway 1995 ) p. 603Google Scholar
  8. 8.
    S. Kamada: Overview on Experimental Techniques and Observations. In: Proc. of Workshop on Nonlinear Dynamics in Particle Accelerators: Theory and Experiments, Arcidosso, Italy, 1994Google Scholar
  9. 9.
    N. Yamamoto, S. Kamada, Y. Kobayashi, H. Koiso, S. Matsumoto: Beam-Based Alignment of Sextupole Magnets with a 7r-Bump Orbit. KEK Preprint 96–74 (1996)Google Scholar
  10. 10.
    S. Herb, G.B. Jaczko, F. Willeke: ‘Beam-Based Calibration of Beam Position Monitor Offsets in the HERA Proton Ring using Strong Sextupole Fields’. In: Proc. of Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, Travemiinde, 1995, DESY Int. Rep. M-95–07Google Scholar
  11. 11.
    T. Raubenheimer: In: Zeroth Order Design Report for the Next Linear Collider, SLAC Report 474, 1996, pp. 227–228Google Scholar
  12. 12.
    P. Emma, J. Irwin, N. Phinney, P. Raimondi, N. Toge, N.J. Walker, V. Ziemann: Beam Based Alignment of the SLC Final Focus Sextupoles. In: Proc. of 1993 IEEE PAC, Washington, DC, 1993 ( IEEE, Piscataway 1993 ) p. 116Google Scholar
  13. 13.
    P. Emma, J. Irwin, N. Phinney, P. Raimondi, N. Toge, N.J. Walker, V. Ziemann: Beam Based Alignment of the SLC Final Focus Sextupoles. In: Proc. of IEEE PAC 93, Washington, D.C., 1993 ( IEEE, Piscataway 1993 )Google Scholar
  14. 14.
    P.G. Tenenbaum: Expanded Studies of Linear Collider Final Focus Systems at the Final Focus Test Beam. Ph.D. thesis, Stanford University, SLAC-R-95–475 (1995)Google Scholar
  15. 15.
    C. Adolphsen, K. Bane, T. Higo et al.: Phys. Rev. Lett. 74, 2475 (1995)ADSCrossRefGoogle Scholar
  16. 16.
    M. Seidel, C. Adolphsen, K.L.F. Bane, R.M. Jones, N.M. Kroll, R.H. Miller, D.H. Whittum: Nucl. Instr. Meth. A 404, 31 (1998)CrossRefGoogle Scholar
  17. 17.
    K. Thompson, T. Himel, S. Moore et al.: ‘Operational experience with Model Based Steering in the SLC Linac’. In: Proc. Part. Acc. Conf., Chicago, Illinois 1989, pp. 1675–1677Google Scholar
  18. 18.
    T. Barklow, P. Emma, P. Krejcik, N. Walker: Review of Lattice Measurement Techniques at the SLC. In: Proc. 5th ICFA Advanced Beam Dynamics Workshop, Corpus Christi, Texas, 1991Google Scholar
  19. 19.
    T. Lohse, P. Emma. Linear Fitting of BPM Orbits and Lattice Parameters. SLAC Single Pass Collider Memo CN-371 (1989)Google Scholar
  20. 20.
    T. Himel, K. Thompson: Energy Measurements from Betatron Oscillations. In: Proc. of the 1989 IEEE Part. Acc. Conf., Chicago, Illinois, 1989Google Scholar
  21. 21.
    C. Adolphsen, T.L. Lavine, W.B. Atwood et al.: ‘Beam Based Alignment Technique for the SLC Linac’. In: Proc. of the 1989 IEEE Part. Acc. Conf., Chicago, Illinois, 1989, pp. 977–979Google Scholar
  22. 22.
    V. Ziemann: Corrector Ironing. SLAC internal report Single-Pass Collider Note CN-393 (1992)Google Scholar
  23. 23.
    W.H. Press, B.P. Fannery, S.A. Teukolsky, W.T. Vetterling: Numerical Recipes: The Art of Scientific Computing, Section 2. 9 ( Cambridge University Press, Cambridge 1986 )Google Scholar
  24. 24.
    The MathWorks Inc., http://www.mathworks.com (1994)Google Scholar
  25. 25.
    W.J. Corbett, F. Fong, M. Lee, V. Ziemann: Optimum Steering of Photon Beam Lines in SPEAR. In: Proc. of 1993 IEEE PAC Washington, 1993 ( IEEE, Piscataway 1993 ) p. 1483Google Scholar
  26. 26.
    T. Limberg, J. Seeman, W.L. Spence: Effects and Tolerances of Injection Jitter in the SLC and Future Linear Colliders. In: Proc. of EPAC 90, Nice, France, 1990 (Ed. Frontieres, Gif-sur-Yvette 1990 ) p. 1506Google Scholar
  27. 27.
    A.W. Chao, B. Richter, C.Y. Yao: Nucl. Instr. Meth. 178, 1–24 (1980)CrossRefGoogle Scholar
  28. 28.
    P. Emma, T.H. Fieguth, T. Lohse: Nucl. Instr. Meth. A 288, 313–334 (1990)ADSCrossRefGoogle Scholar
  29. 29.
    V. Balakin, A. Novokhatsky, V. Smirnov: In: Proc. 12th International Conference on High Energy Accelerators, Fermilab, 1983 ( IEEE, New York, 1983 )Google Scholar
  30. 30.
    J.T. Seeman, F.-J. Decker, I. Hsu: The Introduction of Trajectory Oscillations to Reduce Emittance Growth in the SLC Linac. In: Proc. 15th Intl. Conf. High Energy Acc., Hamburg, Germany, 1992 (World Scientific, 1992 ) pp. 879–881Google Scholar
  31. 31.
    R. Assmann, C. Adolphsen, K. Bane et al.: LIAR — A Computer Program for the Modeling and Simulation of High Performance Linacs. SLAC/AP-103, 1997Google Scholar
  32. 32.
    R. Assmann: Beam dynamics in the SLC. In: Proc. of 1997 IEEE Part. Acc. Conf., Vanouver, BC, Canada, 1997Google Scholar
  33. 33.
    R. Assmann, F.-J. Decker, P. Raimondi: Improvements in Emittance Wakefield Optimization for the SLAC Linear Collider. In: Proc. EPAC 98, Stockholm, Sweden, 1998 ( IOP, Bristol 1999 )Google Scholar
  34. 34.
    R.W. Assmann, F.J. Decker, L.J. Hendrickson et al.: ‘Beam Based Monitoring of the SLC Linac Optics with a Diagnostic Pulse’. In: Proc. 17th Part. Acc. Conf., Vancouver, Canada, 1997, pp. 497–499Google Scholar
  35. 35.
    T.O. Raubenheimer, R.D. Ruth: Nucl. Instr. Meth. A302, 191–208 (1991)ADSCrossRefGoogle Scholar
  36. 36.
    R.W. Assmann, T. Chen, F.J. Decker et al.: ‘Quadrupole Alignment and Trajectory Correction for Future Linear Colliders: SLC Tests of a Dispersion-Free Steering Algorithm’. In: Proc. 4th Int. Workshop on Acc. Alignment, Tsukuba, Japan, 1995Google Scholar
  37. 37.
    F.-J. Decker, R. Brown, J.T. Seeman: Beam Size Measurements with Noninterceptive Ff Axis Screens. In Proc. of Part. Acc. Conf., Washington, DC, 1993, pp. 2507–2509Google Scholar
  38. 38.
    R. Assmann, T. Chen, F.-J. Decker, M. Minty, P. Raimondi, T.O. Raubenheimer, R. Siemann: Simultaneous Trajectory and Dispersion Correction in the SLC Linac. Unpublished draft (1996)Google Scholar
  39. 39.
    D. McCormick, M. Ross, T. Himel, N. Spencer: Thermal Stabilization of Low Level RF Distribution Systems at SLAC. In: Proc. of Part. Acc. Conf., Washington, DC, 1993 ( IEEE, Piscataway 1993 ) pp. 1975–1977Google Scholar
  40. 40.
    F.-J. Decker, R. Akre, M. Byrne, et al.: ‘Effects of Temperature Variation on the SLC Linac Rf System’. In: Proc. of Part. Acc. Conf., Dallas, Texas, 1995 ( IEEE, Piscataway 1995 ) pp. 1821–1823Google Scholar
  41. 41.
    J. Bogart, R.W. Assmann, M. Breidenbach et al.: ‘A Fast and Accurate Phasing Algorithm for the RF Accelerating Voltages of the SLAC Linac’. In: Proc. EPAC 98, Sweden, 1998 ( IOP, Bristol 1999 ) pp. 22–26Google Scholar
  42. 42.
    T. Himel: Ann. Rev. Nucl. Part. Sci. 47, 157 (1997)ADSCrossRefGoogle Scholar
  43. 43.
    M. Minty, C. Adolphsen, L.J. Hendrickson, R. Sass, T. Slaton, M. Woodley: Feedback Performance at the Stanford Linear Collider. In: Proc. of IEEE PAC 95, Dallas, 1995 ( IEEE, Piscataway 1995 )Google Scholar
  44. 44.
    M. Bai, S.Y. Lee, J.W. Glenn et al.: Phys. Rev. E 56, 5, 6002 (1997)ADSCrossRefGoogle Scholar
  45. 45.
    M. Bai, L. Ahrens, J. Alessi et al.: Phys. Rev. Lett. 80, 21, 4673 (1998)ADSCrossRefGoogle Scholar
  46. 46.
    O. Berrig, W. Hofle, R. Jones et al.: ‘Excitation of Large Transverse Beam Oscillations without Emittance Blow-Up using AC-Dipole Principle’. In: Proc. 5th European Workshop on Diagnostics and Beam Instrumentation, Grenoble, 2001, and CERN-SL-2001–019-BIGoogle Scholar

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© The Author(s) 2003

Open Access This chapter was originally published with exclusive rights reserved by the Publisher in 2003 and was licensed as an open access publication in November 2019 under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license if changes were made.

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Authors and Affiliations

  • Michiko G. Minty
    • 1
  • Frank Zimmermann
    • 2
  1. 1.DESY - MDEHamburgGermany
  2. 2.AB Division, ABP GroupCERNGeneva 23Switzerland

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