| Paper |
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| TUXG02 |
High Luminosity Operation, Beam-Beam Effects and Their Compensation in TEVATRON
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951 |
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- V. D. Shiltsev
Fermilab, Batavia, Illinois
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During the recent years a remarkable increase of the TEVATRON luminosity was achieved. The presentation discusses the collider performance, how this was achieved and illustrates today's limitations. The TEVATRON will shutdown soon but many ideas that emerged from the TEVATRON are of great interest for future (hadron) colliders. As an example, the experience gained at the TEVATRON in understanding of beam-beam effects in hadron colliders and their compensation is highly relevant for future projects. Experimental results of the Tevatron Electron Lenses will be presented and possible use of similar lenses in LHC and RHIC will be discussed.
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Slides
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| WEXG01 |
Performance of KEKB with Crab Cavities
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1893 |
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- Y. Funakoshi
KEK, Ibaraki
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20 years after they were initially proposed, in February 2007 crab cavities are for the first time installed in an operating collider, KEKB. The commissioning of KEKB with crab cavities is presented, and the performance of the collider is compared to the performance without crab cavities. Lessons learned from the operation with such cavities for future projects are discussed.
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Slides
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| WEXG02 |
Crabbed Waist Collisions in DAΦNE and Super-B Design
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1898 |
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- P. Raimondi, D. Alesini, M. E. Biagini, C. Biscari, R. Boni, M. Boscolo, F. Bossi, B. Buonomo, A. Clozza, G. O. Delle Monache, T. Demma, E. Di Pasquale, G. Di Pirro, A. Drago, A. Gallo, A. Ghigo, S. Guiducci, C. Ligi, F. Marcellini, G. Mazzitelli, C. Milardi, F. Murtas, L. Pellegrino, M. A. Preger, L. Quintieri, R. Ricci, U. Rotundo, C. Sanelli, M. Serio, F. Sgamma, B. Spataro, A. Stecchi, A. Stella, S. Tomassini, C. Vaccarezza, M. Zobov
INFN/LNF, Frascati (Roma)
- N. Arnaud, D. Breton, P. Roudeau, A. Stocchi, V. Variola, B. F. Viaud
LAL, Orsay
- S. Bettoni
CERN, Geneva
- P. Branchini
roma3, Rome
- M. Esposito
Rome University La Sapienza, Roma
- I. Koop, E. B. Levichev, P. A. Piminov, D. N. Shatilov, V. V. Smaluk
BINP SB RAS, Novosibirsk
- K. Ohmi
KEK, Ibaraki
- E. Paoloni
University of Pisa and INFN, Pisa
- M. Schioppa
INFN Gruppo di Cosenza, Arcavacata di Rende (Cosenza)
- D. Teytelman
SLAC, Menlo Park, California
- P. Valente
INFN-Roma, Roma
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The new idea of increasing the luminosity of a collider with crabbed waist collisions and first experimental results from DAΦNE using this concept are presented. Consequences for the design of future factories will be discussed. An outlook to the performance reach with crabbed waist collisions is given, with emphasis on future B Factories.
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Slides
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| WEPP016 |
FEL-based Coherent Electron Cooling for High-energy Hadron Colliders
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2560 |
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- V. Litvinenko
BNL, Upton, Long Island, New York
- Y. S. Derbenev
Jefferson Lab, Newport News, Virginia
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Cooling intense high-energy hadron beams remains a major challenge in modern accelerator physics. Synchrotron radiation of such beams is too feeble and two common methods, stochastic and electron cooling, are not efficient in providing significant cooling for high energy hadron, especially proton, colliders. In this paper we discuss a practical scheme of Coherent Electron Cooling, which promises short cooling times (below one hour) for intense proton beams in RHIC at 250 GeV or in LHC at 7 TeV*. Coherent Electron Cooling was suggested early 1980s as a possibility for using various microwave instabilities in an electron beam to enhance its interaction with hadrons**. The capabilities of present-day accelerator technology, ERLs, and high-gain Free-Electron Lasers (FELs), finally caught up with the idea and provided the all necessary ingredients for realizing such a process at energies typical for modern high energy hadron colliders. In this paper, we discuss the principles, the main limitations of this scheme and present some predictions for Coherent Electron Cooling in RHIC and the LHC operating with ions or protons.
*V. N. Litvinenko, Y. S. Derbenev, Proc. 29th Int. FEL Conference, Novosibirsk, August, 2007.
**Y. S. Derbenev, Proc. of 7th All-Union Conf. on Charged Particle Accelerators, October 1980, Dubna, 269.
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