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194 results on '"Brouzet, E"'

1. The SPS as lead-ion accelerator

Author

Altuna, X, Arduini, Gianluigi, Arimatea, C, Bailey, R, Blanchard, R R, Bohl, T, Brouzet, E, Burkhardt, H, Collier, Paul, Cornelis, Karel, de Rijk, G, Faugier, A, Ferioli, F, Hilaire, A, Jonker, M, Lamont, M, Linnecar, Trevor Paul R, Normann, L, Niquille, C, Roy, G, and Wenninger, J

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, Accelerators and Storage Rings
Abstract

In 1995 the CERN SPS was used during two months to accelerate fully stripped ions of the Pb208 isotope from the equivalent proton momentum of 13 GeV/c to 400 GeV/c. The radio frequency swing which is needed in order to keep the synchronism during acceleration is too big to have the SPS cavities deliver enough voltage for all frequencies. In a first stage, the beam is accelerated from 13 GeV/c to 26 GeV/c using the fixed frequency mode. During this stage the beam is grouped in four 2msec batches, separated by 3msec holes during which the frequency is changed in order to keep synchronism. At 26 GeV the beams are de-bunched and recaptured in order to fill the 3msec holes. From there on the lead ions are then accelerated up to 400 GeV/c with the normal frequency program. The de-bunching and recapture at 26 GeV improved the effective spill at extraction by a factor of three. Intensities up to 3.9 1010 charges could be obtained at 400 GeV/c. The total efficiency of the two RF captures was 64%.

Published
1996

7. The SPS as accelerator of Pb$^{82+}$ ions

Author

Faugier, A, Altuna, X, Bailey, R, Blanchard, R R, Bohl, T, Brouzet, E, Burkhardt, H, Collier, Paul, Cornelis, Karel, de Rijk, G, Ferioli, F, Hilaire, A, Lamont, M, Linnecar, Trevor Paul R, Jonker, M, Niquille, C, Roy, G, and Schmickler, Hermann

Subjects
Physics::Instrumentation and Detectors, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, Accelerators and Storage Rings
Abstract

In 1994 the CERN SPS was used for the first time to accelerate fully stripped ions of the Pb208 isotope from the equivalent proton momentum of 13 GeV/c to 400 GeV/c. In the CERN PS, which was used as injector, the lead was accelerated as Pb53+ ions and then fully stripped in the transfer line from PS to SPS. The radio frequency swing which is needed in order to keep the synchronism during acceleration is too big to have the SPS cavities deliver enough voltage for all frequencies. For that reason a new technique of fixed frequency acceleration was used. With this technique up to 70% of the injected beam could be captured and accelerated up to the extraction energy, the equivalent of 2.2 1010 charges. The beam was extracted over a 5 sec. long spill and was then delivered to different experiments at the same time.

Published
1995

12. Heavy ions in the LHC

Author

Brouzet, E and Schindl, Karlheinz

Subjects
Accelerators and Storage Rings
Published
1993

14. Minutes of the PPC Meeting held on 15 September 1992

Author

Boillot, J, Brouzet, E, Cappi, R, Chohan, V, Daems, G, Dumollard, D, Garoby, R, Hancock, S, Hill, C, Hübner, K, Manglunki, Django, Martini, M, Metzmacher, K, Pace, A, Paoluzzi, M, Potier, J P, Rasmussen, N, Riunaud, J P, Saulnier, Cl, Schindl, Karlheinz, Schönauer, H O, Schulte, E, Steinbach, C, Têtu, P, Vretenar, M, and Wildner-Malandain, E

Subjects
Accelerators and Storage Rings
Published
1992

20. LEP energy calibration

Author

Bailey, R, Baudrenghien, P, Beetham, C G, Billan, J, Bohl, T, Bordry, Frederick, Borer, J, Brouzet, E, Cappi, R, Ciapala, Edmond, Collier, Paul, Cornelis, Karel, Dahlerup-Petersen, K, de Rijk, G, Defert, Philippe, Fassò, A, Faugier, A, Frammery, Bertrand, Garoby, R, Gourber, J P, Guignard, Gilbert, Hand, L, Hatton, V W, Henrichsen, K N, Hofmann, A, Juillard, J C, Koutchouk, Jean-Pierre, Linnecar, Trevor Paul R, Lohmann, K D, Miles, J, Myers, S, Péraire, S, Perrot, A, Peschardt, E, Placidi, Massimo, Plane, D, Poole, John, Richter, Burton, Risselada, Thys, Riunaud, J P, Saban, R I, Schmickler, Hermann, Siegel, N, Sladen, Jonathan P H, Spinks, Alan, Stevenson, Graham Roger, Van de Plassche, D, and Weihreter, E

Subjects
Accelerators and Storage Rings
Published
1990

22. High intensity options for the CERN heavy ion programme

Author

Brandt, D, Brouzet, E, Cappi, R, Gareyte, Jacques, Garoby, R, Haseroth, H, Lefèvre, P, Maury, S, Möhl, D, Pedersen, F, Schindl, Karlheinz, Sherwood, T R, Thorndahl, L, and Warner, D

Subjects
Accelerators and Storage Rings
Published
1990

26. Linac-PSB-PS MD

Author

Boutheon, M, Brouzet, E, Boussard, D, Gareyte, J, Haseroth, H, Lefèvre, P, Pedersen, F, Potier, JP, Sacherer, F, Schiudi, K, and Têtu, P

Subjects
Accelerators and Storage Rings
Published
1974

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