Zobrazeno 1 - 10
of 20
pro vyhledávání: '"J. Marilleau"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 304:297-299
There is a great interest in developing simulation methods that are more appropriate to the geometrical complexity of real devices. To approach geometric realism, we have investigated two different numerical methods to solve Maxwell's equations in r
Publikováno v:
1990 Plasma Science IEEE Conference Record - Abstracts.
Summary form only given, as follows. Fully electromagnetic simulations of the beam dynamics in a relativistic photocathode injector have been made using a PIC (particle-in-cell) code developed for the FEL program at CEA/France. This code solves the c
Autor:
C. Bazin, Y. Lapierre, M. Billardon, M. Bergher, J. Marilleau, Y. Petroff, J. M. Ortega, P. Elleaume
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 250:26-34
A modification of the operating point of the machine is reported. Smaller transverse sizes of the electron beam have been achieved producing a higher optical gain, and a laser tunability ranging from 5700 to 6400 A. The dependence of the temporal and
Autor:
John F. Clauser, B. W. Stallard, J. H. Foote, S.L. Allen, T. A. Casper, L.V. Berzins, W.E. Nexsen, T. Romesser, B.H. Failor, W. L. Pickles, W.C. Turner, D. P. Grubb, G.W. Leppelmeier, R. G. Kerr, T. Nash, M.R. Carter, G. Dimonte, F. H. Coensgen, C. C. Damm, R. A. James, G.D. Porter, J. M. Moller, J.D. Barter, D.L. Correll, M. Flammer, C.J. Lasnier, E. B. Hooper, T. L. Yu, T. C. Simonen, P. Poulsen, Richard Ellis, A.W. Molvik, A. L. Hunt, W.F. Cummins, R.S. Hornady, T. Christensen, S. Falabella, E.H. Silver, D. N. Hill, R. K. Goodman, C. A. Clower, W. L. Hsu, J. Marilleau
Publikováno v:
Physical Review Letters. 53:783-786
In thermal-barrier experiments in the tandem mirror experiment upgrade axial confinement times of 50 to 100 ms have been achieved. During enhanced confinement we measured the thermal-barrier potential profile using a neutral-particle-beam probe. The
Publikováno v:
High Speed Photography ISBN: 9781461333791
A camera composed by an electrostatic deflexion tube, coupled with optic-fibers to a “Nocticon” tube used in slow scanning mode, provides a video signal electronicaly treated and recorded on a numeric tape. Data are computed, and synthesis images
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5382eedde2d95ab58251b677204569b9
https://doi.org/10.1007/978-1-4613-3377-7_67
https://doi.org/10.1007/978-1-4613-3377-7_67
Autor:
J. Marilleau
Publikováno v:
SPIE Proceedings.
an electrooptical image detector.The performance of the electro-optical image detectors are evaluat-ed in terms of quantum efficiency,noise factor, resolution.Some possibilities of the linacare recalled and applied to thecineradiographic field; these
Autor:
J. Marilleau
Publikováno v:
SPIE Proceedings.
As soon as radiography was discovered, one looked forward on applications to see through objects, that is to say: -either, to see an object behind another one which is considered as a mask. -or, to observe an internal part of an object. But it is sur
Publikováno v:
SPIE Proceedings.
We present a system fitted for digitizing pictures coming from high speed cinematography systems as well as pulsed radiography. The system is built around a slow scanning television tube which provides a resolution of 1024 x 1024 -512 x 512 or 256 x
Publikováno v:
SPIE Proceedings.
We study the 3D reconstruction of simple objects from transmitted radiographs on the basis of computed tomography. We consider a limited number of projections (about ten) and give a comparison for different algorithms (convolution and algebraic recon
Autor:
Y. Petroff, Y. Lapierre, J. Marilleau, J. M. Ortega, C. Bazin, M. Bergher, P. Elleaume, M. Billardon, M. Velghe
Publikováno v:
SPIE Proceedings.
In this paper we describe the different goals of the Orsay optical Klystron : free electron laser, coherent harmonic generation, tool for beam diagnostics, source for spin polarized photoemission of solids, optical experiments on clusters and hologra