Zobrazeno 1 - 10
of 27
pro vyhledávání: '"C. Laspalles"'
Autor:
J. Frehaut, G. Haouat, M.A. Beuve, Ph. Guimbal, J.P. Laget, P. Balleyguier, S. Striby, H. Leboutet, J. Raimbourg, C. Couillaud, S. Joly, F. Schumann, J.P. Blésès, Y. Pranal, M. Guilloud, J.G. Marmouget, Cl. Bonetti, C. Laspalles, J.P. De Brion, D. Iracane, R. Joly, R. Dei-Cas, P. Fourdin, R. Bois, A. Binet, J. Vouillarmet, F. Sabary
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 331:199-203
The ELSA free-electron laser has delivered its first FEL photons at a wavelength of about 23 μm. Electron bunches were produced by a 144 MHz photoinjector, accelerated to 16.5 MeV by a 433 MHz linac and transported through a three-dipole U-turn into
Autor:
J. Di Crescenzo, M.A. Beuve, J.-M. Dolique, J.P. Blésès, G. Haouat, J. Frehaut, P. Michaud, M. Guilloud, Y. Pranal, Cl. Bonetti, C. Laspalles, A. Bloquet, S. Joly, J.G. Marmouget, S. Striby, J.P. Laget, S. Seguin, P. Balleyguier, D. Iracane, J.P. De Brion, R. Dei-Cas, F. Schumann, R. Joly, D. Masseron, J. Brisset, A. Binet, J. Vouillarmet, P. Fourdin, R. Bois, R. Faujour, H. Leboutet
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 318:IN5-126
The residual vacuum pressure of the 144 MHz RF-gun cavity has been improved significantly ( p r ≈ 5 × 10 −10 bar ). However, when running with RF power we still observe a vacuum degradation which is responsible for the limited photocathode lifet
Autor:
H. Leboutet, R. Joly, J. Frehaut, J.-M. Dolique, M.A. Beuve, Y. Pranal, S. Joly, R. Faujour, J. Di Crescenzo, F. Schumann, J.G. Marmouget, D. Masseron, Y. De Penquer, J.P. De Brion, C. Laspalles, P. Fourdin, G. Haouat, Cl. Bonetti, D. Iracane, M. Guilloud, P. Michaud, S. Sequin, R. Bois, J. Brisset, J.P. Blésès, J.P. Laget, S. Striby, P. Balleyguier, A. Bloquet, A. Binet, R. Dei-Cas, J. Vouillarmet
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 304:215-218
A near-infrared FEL experiment (ELSA) based on a 20 MeV rf linac is being constructed at Bruyeres-le-Châtel. To reach high peak power, we have chosen nonstandard technologies, namely: a low-frequency photoinjector (144 MHz), a low-frequency accelera
Autor:
Ph. Gorodetzky, R. Babinet, A. Le Merdy, D. Qassoud, A. Rahmani, J. Gosset, C. Laspalles, C. Racca, Nicole Bastid, J. Arnold, J. Girard, F. Brochard, J. P. Alard, F. Biagi, W. Schimmerling, L. Fraysse, Gerard Montarou, Z. Fodor, Pascal Dupieux, P. Charmensat, O. Valette, Y. Terrien, J. Poitou, M.C. Lemaire, J. Augerat, M.J. Parizet, B. Lucas, M. Crouau, J. Marroncle, D. L'Hôte
Publikováno v:
Nuclear Physics A. 506:637-654
Emission of light fragments at small angles is studied in relativistic heavy ion collisions using the Diogene plastic wall for both symmetrical and non-symmetrical target-projectile systems with 400 MeV per nucleon and 800 MeV per nucleon incident ne
Autor:
M. Guilloud, J. Frehaut, A. Bertin, G. Le Meur, D. Veron, J. Di Crescenzo, F. Cocu, H. Leboutet, S. Striby, Y. Pranal, M.A. Beuve, J. Aucouturier, J.C. Adam, Cl. Bonetti, C. Laspalles, A. Binet, J.G. Marmouget, S. Joly, G. Haouat, J. Vouillarmet, R. Dei-Cas, M. Simon, D. Masseron, J. Sigaud, A. Herscovici, J.C. Jouys, P. Fourdin, R. Bois, J.P. Laget, A. Heron, P. Balleyguier, J.P. De Brion, D. Iracane, Y. De Penquer, A. Bensussan, A. Dubrovin, A. Bloquet, R. Joly
Publikováno v:
Proceedings of the Eleventh International Free Electron Laser Conference.
The photo-injector presented at the FEL-88 Conference is now completely assembled. Performances of the main components will be outlined. The photo-injector beam dynamics has been simulated by using different codes and the results will be compared. By
Autor:
P. Fourdin, A. Bloquet, C. Laspalles, J.P. De Brion, G. Haouat, S. Joly, R. Dei-Cas, R. Joly, J. Brisset, J.P. Laget, Cl. Bonetti, J. Vouillarmet, H. Leboutet, P. Balleyguier, J. Di Crescenzo, F. Schumann, J.P. Blésès, S. Striby
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 304:308-310
The photo-injector built at Bruyeres-le-Châtel for the production of high-brightness electron beams is running routinely. Electron bunches containing up to 20 nC charge have been extracted from a CsK2Sb photocathode illuminated by a Nd:YAG laser and
Autor:
J. Poitou, M.C. Lemaire, Jacques Vandermeulen, J. Gosset, C. Laspalles, F. Brochard, J. P. Alard, Joseph Cugnon, Zoltan Fodor, B. Lucas, J. Augerat, M. J. Parizet, Gerard Montarou, J. Girard, W. Schimmerling, Ph. Gorodetzky, Y. Terrien, R. Babinet, D. L'Hôte, L. Fraysse, C. Racca
Publikováno v:
Physical review. C, Nuclear physics. 44(1)
Deuteron spectra at laboratory angles from 30\ifmmode^\circ\else\textdegree\fi{} to 90\ifmmode^\circ\else\textdegree\fi{} were measured in \ensuremath{\alpha}+(Pb, Cu, and C) collisions at 800, 600, and 200 MeV/nucleon, and \ensuremath{\alpha}+(Pb an
Autor:
J. Poitou, F. Brochard, J. P. Alard, M.C. Lemaire, Ph. Gorodetzky, Y. Terrien, R. Babinet, J. Gosset, Nicole Bastid, N. De Marco, J. P. Costilhes, M. Crouau, C. Laspalles, D. L'Hôte, J. Arnold, C. Racca, Pascal Dupieux, J. Girard, A. Papineau, Zoltan Fodor, M. Drouet, J. Valero, O. Valette, J. C. Tamain, H. Fanet, L. Fraysse, Gerard Montarou, W. Schimmerling, J. Augerat, M.J. Parizet, B. Lucas
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 261:379-398
Diogene, an electronic 4 pi detector, has been built and installed at the Saturne synchrotron in Saclay. The forward angular range (0 degree-6 degrees) is covered by 48 time-of-flight scintillator telescopes that provide charge identification. The tr
Publikováno v:
Nuclear Instruments and Methods. 111:77-81
A drift counter used to localize particles in the 1 GeV proton experiment at Saclay is described. A spatial resolution going from 0.6 mm for 10 cm drift to 1 mm for 30 cm drift and 1.6 mm for 50 cm drift is obtained. The 7 μs memory time of the drif
Publikováno v:
Nuclear Instruments and Methods. 46:229-232
A spark chamber to localize particles on the focal plane of a magnetic spectrometer is described. The linear resolution over a total range of 22 cm is about 1.5 mm, counting rates up to 100 cps are used without trouble.