5 Papers
6 Citations
B. Leger is an academic researcher from University of Colorado Colorado Springs. The author has contributed to research in topics: Atomic Clock Ensemble in Space & Atomic clock. The author has an hindex of 2, co-authored 4 publications.
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Papers
The ACES mission: System development and test status
M. P. Heß,Luca Stringhetti,B. Hummelsberger,K. Hausner,R. Stalford,Rosario Nasca,Luigi Cacciapuoti,R. Much,S. Feltham,T. Vudali,B. Leger,F. Picard,Didier Massonnet,P. Rochat,D. Goujon,Wolfgang Schäfer,P. Laurent,Pierre Lemonde,André Clairon,Patrick D. Wolf,Christophe Salomon,Ivan Prochazka,Ulrich Schreiber,Oliver Montenbruck +23 more
TL;DR: Atomic Clock Ensemble in Space (ACES) is an ESA mission in fundamental physics based on a new generation of clocks operated in the microgravity environment of the International Space Station.
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PHARAO : le premier étalon primaire de fréquence, à atomes froids, spatial
Ph. Laurent,Michel Abgrall,I. Moric,Pierre Lemonde,Giorgio Santarelli,André Clairon,S. Bize,D. Rovera,J. Guéna,Christophe Salomon,M. Aubourg,F. Picard,Ph. Chatard,S. Leon,Ch. Sirmain,Didier Massonnet,O. Grosjean,Ch. Delaroche,J.F. Vega,N. Ladiette,M. Chaubet,B. Leger,Ch.M. de Graeve,S. Julien,Muriel Saccoccio,D. Blonde,Benoit Faure,A. Ratsimandresy,S. Béraud,Fabrice Buffe,Isabelle Zenone,Ph. Larivière,C. Escandes,B. Vivian,C. Luitot,F. Gonzalez,J.-P. Granier,Ph. Guillemot,Ch. Macé,Stéphane Thomin,J. P. Lelay,T. Potier,Y. Cossart,Th. Nauleau,A. Granget +44 more
- 10 Jul 2014
TL;DR: In this article, the performance of the PHARAO clock has been compared with the primary frequency standard, the mobile fountain of SYRTE, and the main results are a frequency stability of 3.3× 10−13t−1/2.
4
Results of the ACES engineering model system test
B. Leger,Luca Stringhetti,Didier Massonnet,Ch. Delaroche,F. Picard,M. P. Hess,Luigi Cacciapuoti,S. Feltham,R. Much,R. Nasca,T. Vudali,Christophe Salomon,Ph. Laurent +12 more
- 13 Apr 2010
TL;DR: A dedicated test campaign has recently verified the performance of the ACES system, where PHARAO and SHM, locked together via the AC ES servo loops, are operated as a unique oscillator to generate the ACes frequency reference.
2
PHARAO space clock : Preliminary tests on ground
Michel Abgrall,P. Laurent,Ch. Jentsch,André Clairon,Pierre Lemonde,Giorgio Santarelli,Christophe Salomon,C. Sirmain,F. Picard,Ch. Delaroche,O. Grosjean,D. Blonde,M. Chaubet,B. Leger,J.F. Vega,Zenone,N. Ladiette +16 more
- 17 Jun 2007
TL;DR: The PHARAO cold atom clock is developed by the French space agency CNES and the first clock model which is used to validate the flight model design is been assembled at CNES, Toulouse.
Syndrome d’Eagle révélé par un syndrome de Claude Bernard-Horner douloureux
B. Leger,Aurélien Freiherr von Seckendorff,C. Carreau,A. Boutelier,Michael Obadia,Candice Sabben +5 more
TL;DR: In this article , the authors describe a case of a patient with a cervical girdectomies associated with a syndrome d’Eagle, without dissection carotidienne.