Abstract
In this chapter we describe various techniques used to control the longitudinal properties of particle beams We concentrate on the manipulation of the second moments of the longitudinal distribution; that is, on the bunch length and energy spread. As will be shown, the bunch length can be varied using accelerating cavities to compress, coalesce, split, and lengthen stored bunches. The energy spread of the beam can also be adjusted (usually to be a minimum) by proper phasing of the rf, by invoking cancellations between the applied and beam-induced rf, and by more sophisticated techniques for the case of long bunch trains. A practical application of the use of rf systems to affect the beam’s transverse emittance is presented lastly.
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References
R. Erickson (ed.): The SLC Design Handbook, Stanford Linear Accelerator Center (1984)
The NLC Study Group: Zeroth-Order Design Report for the Next Linear Collider. LBNL-PUB-5424, SLAC Report 474, UCRL-ID-124161 (1996)
N. Akasaka, M. Akemoto, S. Anami et al.: JLC Design Study. KEK-REPORT97–1 (1997)
D.A. Edwards (ed.): ‘TESLA Test Facility Linac — Design Report’, DESY Report: TESLA 95–01 (1995)
C. Pellegrini, J. Rosenzweig, H.D. Nuhn et al.: ‘A 2-nm to 4-nm High Power FEL on the SLAC Linac’, Nucl. Instr. Meth. A331, 223–227 (1993)
P. Emma, T. Raubenheimer, F. Zimmermann: A Bunch Compressor for the Next Linear Collider, In: Proc. IEEE Part. Acc. Conf., Dallas, Texas, 1995 704–706. SLAC-PUB-6787 (1995)
M.G. Minty et al.: Operation and Performance of Bunch Precompression for Increased Current Transmission at the SLC, In: Proc. IEEE Part. Acc. Conf., Vancouverr, Canada, 1997. SLAC-PUB-7477 (1997)
W. Kriens: Petra Bunch Rotation. DESY-M-97–10N (1997)
G. Wiesenfeldt: Untersuchungen zur longitudinalen Strahlanpassung beim Protonentransfer von PETRA nach HERA. Diplomarbeit, Universitaet Hamburg (1995)
I. Kourbanis, G.P. Jackson, X. Lu: Performance and Comparison of the Different Coalescing Schemes Used in the Fermilab Main Ring. In: Proc. IEEE Part. Acc. Conf., Washington, DC, 1993, pp. 3799–3801
P.S. Martin, D.W. Wildman: Bunch Coalescing and Bunch Rotation in the Fermilab Main Ring: Operational Experience and Comparison with Simulations. In: Proc. EPAC88, Rome, Italy, 1988 (IOP, 1989 ) p. 785
V. Bharadwaj: private communication (1999)
J. Dey, I. Kourbanis, D. Wildman: Improvements in Bunch Coalescing in the Fermilab Main Ring. In: Proc. Pac95, Dallas, TX, 1995 ( IEEE, Piscataway 1995 ) p. 3312
M. Benedikt, A. Blas, J. Borburgh et al.: ‘The PS Complex Produces the Nominal LHC Beam’. In: Proc. EPAC, Vienna, Austria, 2000 ( European Phys. Soc., Geneva 2000 )
R. Garoby: Status of the Nominal Proton Beam for LHC in the PS. In: Proc. of the Workshop on LEP-SPS Performance, Chamonix I X, 1999
R. Garoby: Multiple Splitting in the PS: Results and Alternative Filling Schemes. In: Proc. of Chamonix XI CERN-SL-2001–003 DI
See for example A. Blas, R. Cappi, R.Garoby, S. Hancock, K. Schindl, J-L. Val-let: Beams in the CERN PS Complex After the rf Upgrades for LHC. In: Proc. EPAC98, Stockholm, 1998 ( IOP, Bristol 1999 )
G. Jackson: Phase Space Tomography (PST) Monitor for Adjusting Bunch Rotation during Coalescing. FERMILAB-FN-469 (1987)
S. Hancock, P. Knaus, M. Lindroos: Tomographic Measurements of Longitudinal Phase Space Density. CERN/PS 98–030 (RF) (1998)
R. Garoby, S. Hancock, J.L. Vallet: Demonstration of Bunch Triple Splitting in the CERN PS. In: Proc. of Eur. Part. Acc. Conf., Vienna, Austria, 2000 ( European Phys. Soc., Geneva 2000 )
R. Garoby: Status of the Nominal Proton Beam for LHC in the PS. In: Proc. of the Workshop on LEP-SPS Performance, Chamonix IX, 1999. CERN/PS 99013 (RF)
H. Huang, M. Ball, B. Brabson et al.: Phys. Rev. E 48, 4678–4688 (1993)
D. Li, M. Ball, B. Brabson, et al.: Phys. Rev. E 48, 1638–1641 (1993)
D. Li, M. Ball, B. Brabson et al.: Nucl. Instr. Meth. A 364, 205–223 (1995)
J.M. Byrd, W.H. Cheng, F. Zimmermann: Phys. Rev. E 57, 4706–4712 (1998)
J.E. Griffin. New Method for Control of Longitudinal Emittance During Transition in Proton Synchrotrons. In: Proc. of IEEE Part. Acc. Conf., Washington, DC, 1993, pp. 408–410
C.M. Bhat, J. Dey, J. Griffin, I. Kourbanis, J. MacLachlan, M. Martens, K. Meisner, K.Y. Nig, J. Shan, D. Wildman: Operational Experience with Third Harmonic RF Cavity for Improved Beam Acceleation Through Transition in the Fermilab Main Ring. In: Proc. of IEEE Part. Acc. Conf., Washington, DC, 1993, pp. 405–407
J.M. Kats, W.T. Weng: Effects of the Second Harmonic Cavity on RF Capture and Transition Crossing. In: 15th Int. Conf. on High-Energy Acc., Hamburg, Germany, 1992 vol. 2 (World Scientific, 1992 ) pp. 1052–1054
J.M. Byrd, K. Baptiste, S. De Santis et al.: Nucl. Instr. Meth. A 439, 15–25 (2000)
J.M. Byrd, M. Georgson: PRST-AB 4, 030701 (2001)
S. Bartalucci, M. Migliorati, L. Palumbo, B. Spartaro, M. Zobov: A 3rd Harmonic Cavity for Daphne. In: Proc. of 4th EPAC, London, England, 1994 ( World Scientific, Singapore 1994 )
M. Migliorati, L. Palumbo, M. Zobov: Nucl. Instr. Meth. A 354, 215–223 (1995)
P. Bramham, A. Hofmann, P.B. Wilson: CERN-LEP-70/25 (1977)
P.B. Wilson: Rough Design of a Third Harmonic RF Cavity for LEP. CERNLEP-70/60 (1978)
C. Bernardini, G.F. Corazza, G. Di Giugno et al.: Phys. Rev. Lett. 10, 407–409 (1963)
A. Piwinski: The Touschek Effect in Strong Focusing Storage Rings. DESY 98–179 (1998)
A. Piwinski: Touschek Effect and Intrabeam Scattering. In: A. Chao, M. Tigner(eds.): Handbook of Accelerator Physics and Engineering, second edition ( World Scientific, Singapore, 2002 )
J.M. Byrd, S. De Santis, M. Georgsson et al.: Nucl. Instr. Meth. A 455, 271–282 (2000)
K. Bane, J. Bowers, A. Chao et al.: ‘High Intensity Single Bunch Instability Behavior in the New SLC Damping Ring Vacuum Chamber’. In: Proc. IEEE Part. ‘Acc. Conf., Dallas, TX, 1995, pp. 3109–3111
J.T. Seeman: Observations and Cures of Wakefield Effects in the SLC Linac. In: Proc. 5th ICFA Adv. Beam Dyn. Wkshp on Effects of Errors in Accelerators, Their Diagnosis and Correction, Corpus Christi, TX, 1991, pp. 339–346
J.T. Seeman, N. Merminga: Mutual Compensation of Wakefield and Chromatic Effects of Intense Linac Bunches. In: Proc. 1990 Linac Conf., Albuquerque, NM, 1990, pp. 387–389
G.A. Loew, J.W. Wang: Minimizing the Energy Spread within a Single Bunch by Shaping its Charge Distribution. SLAC/AP-025 (1984)
F.-J. Decker, R. Holtzapple, T. Raubenheimer: Overcompression, a Method to Shape the Longitudinal Bunch Distribution for a Reduced Energy Spread. In: Proc. 17th Intl. Linear Acc. Conf., Tsukuba, Japan, 1994, pp. 47–49
K.L.F. Bane, F.-J. Decker, J.T. Seeman, F. Zimmermann: Measurement of the Longitudinal Wakefield and the Bunch Shape in the SLAC Linac. In: Proc. IEEE Part. Acc. Conf., Vancouver, Canada, 1997
K.L.F. Bane, F.-J. Decker, F. Zimmermann: Obtaining the Bunch Shape in a Linac from Beam Spectrum Measurement. In: Proc. IEEE Part. Acc. Conf., New York, NY, 1999
J.E. Clendenin, R. H. Helm, R. K. Jobe, A. Kulikov, J.C. Sheppard: Energy Matching of 1.2 GeV Positron Beam to the SLC Damping Ring. In: Proc. XIV Intl. Conf. on High Energy Accelerators, Tsukuba, Japan, 1989
P. Wilson: High Energy Electron Linacs; Application to Storage Ring RF Systems and Linear Colliders, SLAC-PUB-2884 (1982)
F.-J. Decker, C. Adolphsen, R. Assmann et al.: ‘Long-Range Wakefields and Split-Tune Lattice at the SLC’. In: Proc. Linac96, Geneva, Switzerland, 1996
C. Adolphsen, K. Bane, R. Jones et al.: ‘Wakefield and Beam Centering Measurements of a Damped and Detuned X-Band Accelerator Structure’. In: Proc. IEEE Part. Acc. Conf., New York, NY, 1999
T. Kageyama, K. Akai, N. Akasaka et al.: ‘The ARES Cavity for the KEK B Factory’. In: Proc. Eur. Part. Acc. Conf., Sitges, Spain, 1996
T. Raubenheimer: In: Zeroth Order Design Report for the Next Linear Collider. SLAC Report 474, (1995) pp. 227–228
F. Hinode, S. Kawabata, H. Matsumoto et al.: Accelerator Test Facility—Design and Study Report, KEK Internal Report 95–4 (1995)
S. Kashiwagi, H. Hayano, F. Hinode et al.: ‘Preliminary Test of ±f Energy Compensation System’. In: Proc. LINAC96, Geneva, 1996
M. Sands: The Physics of Electron Storage Rings. SLAC-121 (1970)
R.D. Kohaupt, G.A. Voss: Ann. Rev. Nucl. and Part. Sci. 33, 67 (1983)
I. Reichel: private communication (1997)
M.G. Minty, R. Brown, F.-J. Decker et al.: ‘Using a Fast-Gated Camera for Measurements of Transverse Beam Distributions and Damping Times’. In: J.A. Hinkson, G. Stover (eds.): Proc. Accelerator Instrumentation Workshop, Berkeley AIP Conf. Proc. 281, 1992, p. 158
K. Oide: SAD Accelerator Modelling Code, unpublished
R. Akre, F.J. Decker, M.G. Minty et al.: ‘;RF Frequency Shift during Beam Storage in the SLC Damping Rings’, In: Proc. IEEE Part. Acc. Conf., New York, NY, 1999
G. Hoffstätter: private communication (1999)
M.G. Minty, R. Akre, F.-J. Decker, J. Frisch, S. Kuroda, F. Zimmermann: Emittance Reduction via Dynamic RF Frequency Shift at the SLC Damping Rings. In: Proc. 17th Intl. Conf. on High-Energy Acc., Dubna, Russia, 1998
D. Schulte: Study of Electromagnetic and Hadronic Background in the Interaction Region of the TESLA Collider. Ph.D. thesis, University of Hamburg (1996)
G. Hoffstätter, F. Willeke: Electron Dynamics in the HERA Luminosity Upgrade Lattice of the Year 2000. In: Proc. IEEE Part. Acc. Conf., New York, NY, 1999
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Minty, M.G., Zimmermann, F. (2003). Longitudinal Phase Space Manipulation. In: Measurement and Control of Charged Particle Beams. Particle Acceleration and Detection. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-08581-3_8
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