Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Yves Sacquin"'
Autor:
Michel Crozon, Yves Sacquin
Aujourd'hui impliquée dans la plupart des phénomènes physiques, la théorie quantique reste profondément marquée par les épisodes de son élaboration, tout au long du XXe siècle. Au cours des sixièmes rencontres « Physique et interrogations
Autor:
Laurent Hilico, Yves Sacquin
Publikováno v:
Reflets de la physique. :12-18
Au Cern, trois expériences (ALPHA-g, AEg- IS et GBAR) sont en concurrence pour mesurer le comportement gravitationnel de l’antimatière. Ces collaborations rassemblent des chercheurs et ingénieurs aux compétences extrêmement variées en physiqu
Autor:
Yves Sacquin, Jean-Pierre Bard, Jean-Pierre Pansart, P. Perez, P. Debu, Michel Combet, Xavier Coppolani, B. Vallage, Daniel Desforges, Ph. Legou, Pascal Le Bourlout
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 912:386-388
One step of the IRFU GBAR project aims at producing a dense low temperature positronium gaz. In order to characterize the positronium cloud we have tested a detector able to measure gamma energies in the 511 keV domain or lower, which is compact, fas
Autor:
Yves Sacquin
Publikováno v:
The European Physical Journal D. 68
Measuring the gravitational behaviour of antimatter is a crucial test of the Weak Equivalence Principle. However, the gravitational force is so weak that the experiment requires a cooling of antimatter never achieved so far. The GBAR experiment aims
Autor:
Nicolas Ruiz, Aline Curtoni, Mickael Carty, Tomoko Muranaka, Valentin Blideanu, Pierre Dupré, P. Perez, Laszlo Liszkay, Olivier Delferrierre, Jean-Michel Rey, Yves Sacquin
Publikováno v:
physica status solidi c. 6:2462-2464
We have installed in Sac lay a demonstration setup for an intense positron source in November 2008. It is based on a compact 6 MeV electron linac to produce positrons via pair production on a tungsten target. A relatively high current of 0.15 mA comp
Autor:
B. Vallage, Yves Sacquin, P. Perez, Jean-Michel Rey, P. Debu, P. Comini, N. Ruiz, J.-M. Reymond, Laszlo Liszkay, P. Grandemange, C. Corbel
Publikováno v:
Journal of Physics: Conference Series. 505:012036
A new slow positron beamline featuring a large acceptance positronium lifetime spectrometer has been constructed and tested at the linac-based slow positron source at IRFU CEA Saclay, France. The new instrument will be used in the development of a de
Autor:
Laszlo Liszkay, P. Grandemange, P. Perez, Yves Sacquin, C. Corbel, P. Dupré, Jean-Michel Rey, P. Comini, P. Debu, N. Ruiz
Publikováno v:
Journal of Physics: Conference Series. 443:012006
The aim of the recently approved GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment is to measure the acceleration of neutral antihydrogen atoms in the gravitational field of the Earth. The experimental scheme requires a high density p
Autor:
Jean-Michel Rey, P. Debu, P. Hardy, P. Lotrus, C. Noel, O. Pierret, P. Perez, N. Ruiz, T. Muranaka, G. Coulloux, H. Dzitko, Yves Sacquin, Laszlo Liszkay
Publikováno v:
Journal of Physics: Conference Series. 443:012077
Low energy positron beams are of major interest for fundamental science and materials science. IRFU has developed and built a slow positron source based on a compact, low energy (4.3 MeV) electron linac. The linac-based source will provide positrons
Autor:
Yves Sacquin, P. Perez
Publikováno v:
Classical and Quantum Gravity. 29:184008
The recently recommended experiment GBAR is foreseen to run at CERN at the AD/ELENA antiproton source. It aims at performing the first measurement of the Earth's gravitational acceleration on antimatter by observing the free-fall of antihydrogen atom