Zobrazeno 1 - 10
of 110
pro vyhledávání: '"F Hartemann"'
Autor:
F Hartemann, S Q Wu
Thermally induced vacuum polarization stemming from QED radiative corrections to the electromagnetic field equations is studied. The physical behavior of thermal radiation, in the nonlinear QED vacuum first described by Heisenberg and Euler, is a pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3fb7d23d2e8ff5bd51dbd0d66a9c50d
https://doi.org/10.2172/1037846
https://doi.org/10.2172/1037846
Autor:
S Q Wu, F Hartemann
The standard Big Bang universe model is mainly based on linear interactions, except during exotic periods such as inflation. The purpose of the present proposal is to explore the effects, if any, of vacuum polarization in the very high energy density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::badfee4d2e6f8597f9680a8951f83316
https://doi.org/10.2172/1012718
https://doi.org/10.2172/1012718
Autor:
T. Trémeau, F. Hartemann, G. Faillon, M. Bres, Tak Sum Chu, Richard J. Temkin, P.P. Legorburu, B.G. Danly, G. Mourier
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 318:94-100
Single-mode, high-power operation of a free-electron maser (FEM) oscillator with a Bragg cavity is reported. The beam is produced by a 0.27 μperv thermionic electron gun which was successfully operated up to 580 kV and 120 A. compressed to a nominal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66f91da0fc9855fe969a283c9113a4e3
https://doi.org/10.1016/0168-9002(92)91030-d
https://doi.org/10.1016/0168-9002(92)91030-d
Autor:
T. Trémeau, M. Bres, F. Hartemann, G. Mourier, Tak Sum Chu, B.G. Danly, Richard J. Temkin, G. Faillon, P.P. Legorburu
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 318:87-93
Results of the design and operation of a 35 GHz high gain, long pulse free-electron maser (FEM) amplifier are presented and discussed. The electron beam used in this experiment is produced by a thermionic electron gun which was successfully operated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::060f1ab256f016c6c0933d256beb18d7
https://doi.org/10.1016/0168-9002(92)91029-9
https://doi.org/10.1016/0168-9002(92)91029-9
Autor:
F. Hartemann, B.G. Danly, G. Faillon, W. L. Menninger, G. Mourier, T.S. Chu, Richard J. Temkin, P.P. Legorburu
Publikováno v:
Physics of Fluids B: Plasma Physics. 4:2307-2314
Experimental results on high‐power long‐pulse free‐electron laser (FEL) and cyclotron autoresonance maser (CARM) experiments are summarized. Single‐mode operation of a free‐electron laser oscillator at 27.4 GHz with a Bragg resonator has be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d34177b9e061c6d9fb87c2815898defb
https://doi.org/10.1063/1.860201
https://doi.org/10.1063/1.860201
Autor:
F Albert, F Hartemann
Nuclear resonance fluorescence-based isotope-specific detection and imaging is a powerful new technology that can enable access to new mission spaces for DNDO. Within this context, the development of advanced mono-energetic gamma ray sources plays an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61a16250d7629f063bb60d9452472c26
https://doi.org/10.2172/967742
https://doi.org/10.2172/967742
Autor:
G. Mourier, F. Hartemann
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 296:516-520
The stimulated refraction effect (optical guiding) in a free-electron laser (FEL) is studied theoretically. The analysis of the 3-dimensional FEL wave equation is performed according to two different thermal methods. First, the microwave field is exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1b66f884f86b220035b59cad69a8edf
https://doi.org/10.1016/0168-9002(90)91258-d
https://doi.org/10.1016/0168-9002(90)91258-d
Publikováno v:
Physics Letters A. 147:495-501
The stimulated refraction effect (optical guiding) in a free-electron laser (FEL) is studied theoretically. The analysis of the three-dimensional FEL wave equation is performed according to two different formal methods. First, the microwave field is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf3eeee2456e03037939c37521496e5b
https://doi.org/10.1016/0375-9601(90)90614-t
https://doi.org/10.1016/0375-9601(90)90614-t
Autor:
Zeno Toffano, F Hartemann
Publikováno v:
Physical Review A
Physical Review A, American Physical Society, 1990, 41 (9), pp.5066-5073. ⟨10.1103/PhysRevA.41.5066⟩
Physical Review A, American Physical Society, 1990, 41 (9), pp.5066-5073. ⟨10.1103/PhysRevA.41.5066⟩
The relativistic transform of electromagnetic fields and inductions in a nonlinear medium is studied theoretically, within the framework of classical electrodynamics. A covariant formulation of the electrodynamics of nonlinear media is presented. Thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2472df96845132cc0df56c5bdb24bb69
https://doi.org/10.1103/physreva.41.5066
https://doi.org/10.1103/physreva.41.5066
Autor:
B. Favre, F. Hartemann
Publikováno v:
Vehicle Electronics in the 90's: Proceedings of the International Congress on Transportation Electronics.
Using an in-car instrumentation may sometimes even conflict with driving requirements. Drivers can easily solve such problems provided designers have taken the necessary precautions by providing for optimum display location, and clear organization, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26ddb945bcc2283d623b6d8ffbf4e089
https://doi.org/10.1109/icte.1990.713021
https://doi.org/10.1109/icte.1990.713021