Beam extraction - 50th anniversary of the CERN Proton Synchrotron

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Fig. 38: Magnetic field (black) and RF voltage (h=8, blue; h=16, red) for the whole magnetic cycle. The shaded area corresponds to the transverse splitting gymnastics. References [1] A. Citron, On a possible ejection scheme, CERN PS/AC-5 (1954). [2] B. Kuiper and G. Plass, On the Fast Extraction of Particles from a 25 GeV Synchrotron, CERN 59-30 (1959). [3] R. Bertolotto, H. Van Breugel, L. Caris, E. Consigny, H. Dijkhuisen, J. Goni, J. J. Hirsbrunner, B. Kuiper, S. Milner, S. Pichler, and G. Plass, The fast ejection system of the CERN 25 GeV Protron Synchrotron, in Proceedings of the Fourth International Conference on High-Energy Accelerators, Dubna, Soviet Union, 1963, edited by A. Kolomenskij, A. B. Kuznetsov and A. N. Lebedev (Atomizdat, Moscow, 1964), p. 869. [4] R. Bossart, H. Van Breugel, L. Caris, H. Dijkhuisen, I. Kamber, B. Kuiper, J. Leroux, S. Milner, B. Nicolai, and E. M. Williams, Multishot and multichannel fast ejection, IEEE Trans. Nucl. Sci. 16 (1969) 286. [5] K. Hübner, 50 years of research at CERN, from past to future: the accelerators, in CERN-2006-004 (2006), pp. 1–26 and CERN-AB-2005-031 (2005). [6] D. Fiander, Hardware for a full aperture kicker system for the CPS, in Proceedings of the 1971 Particle Accelerator Conference, Chicago, Ill., USA, 1971, 1022–3. [7] R. L. Keizer, Dipole Septum Magnets, CERN 74-13 (1974). [8] J. Borburgh, M. Hourican, and M. Thivent, A new set of magnetic septa in the CERN PS complex, in Proceedings of the 1999 Particle Accelerator Conference, New York, NY, USA, 2283–5. [9] H. G. Hereward, The possibility of resonant extraction from the CPS, AR/Int. GS/61-5 (1961). [10] H. G. Hereward, The CPS resonant extraction system, in Proceedings of the Fourth International Conference on High Energy Accelerators, Dubna, Soviet Union, 1963, edited by A. Kolomenskij, A. B. Kuznetsov, and A. N. Lebedev (Atomizdat, Moscow, 1964), p. 690. [11] C. Bovet, G. R. Lambertson, and K. H. Reich, Measurements on Slow Beam-Ejection from the CPS, CERN 64-25 (1964). [12] P. Strolin, Third order resonance slow extraction from alternating gradient synchrotrons, ISR/TR/66- 40 (1966). [13] W. Kubischta, Multiple target extraction sharing scheme at the CPS, in Proceedings of the Eighth International Conference on High-Energy Accelerators, CERN, Geneva, Switzerland, 1971, edited by M. H. Blewett and N. Vogt-Nilsen (CERN, Geneva, Switzerland, 1971), p. 110. [14] W. Kubischta, Layout of elements for SE 16, CERN/MPS/DL 71-5 (1971). [15] C. Steinbach, Proposal for a new PS slow extraction, PS/OP/Note 86-24 (1986). 32
[16] F. Galluccio, T. Risselada, Ch. Steinbach and M. Tanaka, Simulation of the PS slow extraction 62 with the MAD program, CERN-PS-88-77-OP-PA (1988). [17] C. Steinbach, Beam optics at resonant extraction septa, in Proceedings of the Third European Particle Accelerator Conference, Berlin, Germany, 1992, edited by H. Henke, H. Homeyer, and C. Petit-Jean-Genaz (Editions Frontières, Gif-sur-Yvette, France, 1992), p. 857. [18] C. Steinbach, H. Stucki, and M. Thivent, The new slow extraction system of the CERN PS, in Proceedings of the 1993 Particle Accelerator Conference, Washington, DC, USA, 1993, edited by C. W. Leemann and J. Bisognano (IEEE, Piscataway, NJ, 1994), p. 339. [19] R. Cappi and C. Steinbach, Low frequency duty factor improvement for the CERN PS slow extraction using RF phase displacement techniques, in Proceedings of the 1981 Particle Accelerator Conference, Washington, DC, USA, 1991, edited by R. C. Placious, IEEE Trans. Nucl. Sci. 28 (1981) 2806. [20] K. H. Reich, Decaturn beam extraction for synchrotrons, BNL AADD-100 (1966). [21] C. Bovet, Continuous transfer from CPS to 300 GeV: a numerical analysis of fast shaving ejection, CERN 300-DI-PA/INS-2 (1971). [22] F. Schäff, Arrangement of elements in the PS for continuous ejection tests, CERN 300-DI-PA/71-7 (1971). [23] D. Grier, Proposal for a staircase pulse generator for continuous transfer from the CPS to the SPS, CERN MPS/SR/Note 71-36 (1971). [24] D. Fiander, The fast bumper magnets and associated pulse generators for 11 turn extraction of the PS, CERN MPS/SR 72-2 (1972). [25] C. Bovet, D. Fiander, L. Henny, A. Krusche, and G. Plass, The fast shaving ejection for beam transfer from the CPS to the CERN 300 GeV machine, in Proceedings of the 1973 Particle Accelerator Conference, San Francisco, CA, USA, 1973, edited by D. W. Dupen, IEEE Trans. Nucl. Sci. 20 (1973) 438. [26] D. C. Fiander, D. Grier, K. D. Metzmacher, and P. Pearce, A modulated fast bump for the CPS continuous transfer, in Proceedings of the 1977 Particle Accelerator Conference, Chicago, IL, USA, 1977, edited by D. W. Dupen, IEEE Trans. Nucl. Sci. 24 (1977) 1340. [27] D. Bloess, J. Boucheron, D. Fiander, D. Grier, A. Krusche, F. Ollenhauer, P. Pearce, H. Riege, and G. C. Schneider, The Control System for the CERN Proton Synchrotron Continuous Transfer Ejection, CERN 78-04 (1978). [28] L. R. Evans, A phase plane exchange section for the SPS antiproton injection beam line, CERN SPS (DI) 80-2 (1980). [29] R. Cappi and M. Giovannozzi, Computation of betatron mismatch and emittance blow-up for multiturn extraction, CERN-PS (AE) 2002-083 (2002). [30] K. Elsener (Ed.) et al., The CERN Neutrino Beam to Gran Sasso (Conceptual Technical Design), CERN 98-02 (1998). [31] R. Cappi (Ed.), K. Cornelis, J.-P. Delahaye, R. Garoby, H. Haseroth, K. Hübner, T. Linnecar, S. Myers, K. Schindl, and C. Wyss, Increasing proton intensity of PS and SPS, CERN-PS (AE) 2001- 041 (2001). [32] Home page of the High Intensity Protons Working Group, http://ab-div.web.cern.ch/abdiv/Projects/hip/. [33] M. Benedikt, Estimation of beam losses for nominal CNGS operation, see http://abdiv.web.cern.ch/ab-div/Projects/hip/Presentations/HIP-20Oct03-MBenedikt.pdf. [34] R. Cappi and M. Giovannozzi, Novel method for multi-turn extraction: trapping charged particles in islands of phase space, Phys. Rev. Lett. 88 (2002) 104801. 33
Page 1 and 2: Beam extraction 1 Introduction In t
Page 3 and 4: high-quality cable used for the PFN
Page 5 and 6: 3.1 Integer resonance extraction 3.
Page 7 and 8: A last improvement came in 1971 wit
Page 9 and 10: the semi-quadrupole began to raise
Page 11 and 12: Fig. 11: Left: electrostatic septum
Page 13 and 14: 3.3.3 Performance of the SE61 extra
Page 15 and 16: After the proposal, an experimental
Page 17 and 18: 80 70 60 β x β y D x SS31 50 40 S
Page 19 and 20: 3.3×10 13 protons per PS batch. Am
Page 21 and 22: Fig. 25: 3D view of the beamlets al
Page 23 and 24: Fig. 27: Sequence of beam profile d
Page 25 and 26: they were done over two consecutive
Page 27 and 28: Fast pulsed magnets (kickers), to b
Page 29 and 30: Fig. 34: Upper: Cross-section of th
Page 31: Fig. 36: Intensity of a MTE de-bunc

Beam extraction - 50th anniversary of the CERN Proton Synchrotron

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