Academic literature on the topic 'Processus radiatif collisionnel'
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Journal articles on the topic "Processus radiatif collisionnel"
Seaton, M. J. "New Atomic Data for Astronomy: An Introductory Review." Highlights of Astronomy 10 (1995): 570–71. http://dx.doi.org/10.1017/s1539299600012065.
Full textPeltz, Csaba, László Drahos, and Károly Vékey. "SORI excitation: Collisional and radiative processes." Journal of the American Society for Mass Spectrometry 18, no. 12 (December 2007): 2119–26. http://dx.doi.org/10.1016/j.jasms.2007.09.011.
Full textBacchus-Montabonel, M. C. "Radiative and collisional processes in space chemistry." Rendiconti Lincei 22, no. 2 (February 22, 2011): 95–103. http://dx.doi.org/10.1007/s12210-011-0115-7.
Full textLister, Graeme G. "Collisional and radiative processes in fluorescent lamps." Physics of Plasmas 10, no. 5 (May 2003): 2136–41. http://dx.doi.org/10.1063/1.1555829.
Full textHalpern, Joshua B., Yuhui Huang, and Tatiana Titarchuk. "Radiative and collisional processes in CNA 2? i." Astrophysics and Space Science 236, no. 1 (1996): 11–17. http://dx.doi.org/10.1007/bf00644317.
Full textKogan, V. I., A. B. Kukushkin, and V. S. Lisitsa. "Kramers electrodynamics and electron-atomic radiative-collisional processes." Physics Reports 213, no. 1-2 (April 1992): 1–116. http://dx.doi.org/10.1016/0370-1573(92)90161-r.
Full textBradshaw, Stephen J., and John Raymond. "Collisional and Radiative Processes in Optically Thin Plasmas." Space Science Reviews 178, no. 2-4 (March 15, 2013): 271–306. http://dx.doi.org/10.1007/s11214-013-9970-0.
Full textCopeland, Richard A., and David R. Crosley. "Radiative, collisional and dissociative processes in triplet acetone." Chemical Physics Letters 115, no. 4-5 (April 1985): 362–68. http://dx.doi.org/10.1016/0009-2614(85)85149-6.
Full textBecker, Kurt H., Peter F. Kurunczi, and Karl H. Schoenbach. "Collisional and radiative processes in high-pressure discharge plasmas." Physics of Plasmas 9, no. 5 (May 2002): 2399–404. http://dx.doi.org/10.1063/1.1449464.
Full textMartus, K., N. Masoud, and K. Becker. "Collisional and radiative processes in high-pressure Ne/N2discharges." Plasma Sources Science and Technology 15, no. 2 (April 26, 2006): S84—S90. http://dx.doi.org/10.1088/0963-0252/15/2/s11.
Full textDissertations / Theses on the topic "Processus radiatif collisionnel"
Benchehida, Mohamed. "Spectroscopie optogalvanique dans la flamme : étude des mécanismes collisionnels." Paris 11, 1989. http://www.theses.fr/1989PA112036.
Full textFluorescence and ionization measurements are performed for the elements Pb, Tl, In in an air-acetylene flame burning at atmospheric pressure in order to establish a useful criterion of choice of the best excitation/ionization scheme for analytical purposes. The experimental data were obtained with the use of a pulsed excitation (10 ns) provided by two tunable dye lasers pumped by the same excimer laser. Whenever necessary, frequency doubling was used and the two laser beams where directed in temporal and spatial coincidence into the flame, where fluorescence and ionisation measurements could be made in the usual way, i. E. , by collecting the fluorescence radiation at 90° and with an immersed electrode for the ionization. As expected, even during the short interaction time provided by the lasers, a substancial fraction of atome can accumulate into a metastable trap, whose population will therefore be greatly enhanced, resulting in a significant analytical gain of the optogalvanic signal and of the sensitivity of the technique. The enhancement was found to be directly proportional to the energy gap between the metastable level and the ground state. This is understandable in terms of the effective level lifetime, which decreases when the energy gap decreases (Pb > Tl > In). The lifetime of the excited level was calculated by using the saturation curve, i. E. , the curve obtained by plotting the fluorescence signal versus laser energy, since it is known from the theory that the saturation energy is related to the level lifetime. By measuring also the branching ratios between the different radiative transitions, it was possible to evaluate the collisional rate coefficients governing the depopulation of the excited states. By considering all the experimental difficulties and constraints and some necessary theoretical assumptions, the agreement between the theoretical predictions and the experimental data was satisfactory. As a result, it is felt that with this approach, the analytical usefulness of a given excitation/ionization scheme in an atmospheric pressure flame for a particular element can be successfully predicted
Dafiri, Brahim. "Taux des processus et populations atomiques dans un plasma laser non-maxwellien : application a un plasma d'hydrogene traite par un modele collisionnel-radiatif." Orléans, 1990. http://www.theses.fr/1990ORLE2005.
Full textHammami, Ramzi. "Modélisation par des processus stochastiques de l'intensité et du spectre des atomes dans un plasma." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4711/document.
Full textThe study of radiative properties of the plasmas (spectra and line intensities) is an important tool for achieving the diagnostic of plasmas. This thesis analyses diagnostic modeling using a stochastic approach. The method consists in modeling a fluctuating plasma parameter by a stepwise constant evolution separated by instantaneous jumps. The plasma parameter is sampled according to a probability density function (PDF), and its evolution is governed by a waiting time (WTD) which is related to the autocorrelation function of the considered plasma parameter. After presenting the theoretical foundations of our stochastic model, we are interested in a second part to the application of the latter for the kinetics of atomic populations in a turbulent plasma and to the Stark broadening of hydrogen line shapes. We apply our model to study the effect of temperature fluctuations on the ion abundances of carbon in conditions that may be encountered in thermonuclear fusion machines (tokamaks) and to a simplified atomic system of Balmer lines, with the aim of preparing a turbulence diagnostic based on line ratios. Our results and show that retaining fluctuations modifies the atomic populations of the system studied.We focus our interest on Stark profiles in a plasma assumed to be in thermodynamic equilibrium for our second application. In this case, it is the electric plasma microfield which is modeled by a stochastic process. The distinctive feature of this study is that it explores, for temperatures of the order of the eV, the intermediate regime between the static approximation at high density, and the impact approximation at low density
Essoltani, Abdelaziz. "Modelisation d'un plasma d'oxygene homogene et stationnaire a la pression atmospherique 2000 k <- t <- 15000 k." Toulouse 3, 1988. http://www.theses.fr/1988TOU30104.
Full textHedley, John. "Collisional and radiative processes in atomic spectra." Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295500.
Full textMuseur, Luc. "Réalisation d'un laser pour l'ultraviolet lointain et application à l'étude des processus de relaxation radiatifs et collisionnels de dimères et d'agrégats gaz rares." Paris 13, 1994. http://www.theses.fr/1994PA132032.
Full textBook chapters on the topic "Processus radiatif collisionnel"
Beyer, Heinrich F., H. Jürgen Kluge, and Viatcheslav P. Shevelko. "Collisional Processes." In X-Ray Radiation of Highly Charged Ions, 127–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-662-03495-8_6.
Full textGriem, H. R. "Tutorial Lecture — Radiative and Collisional Processes in Plasmas." In Radiative Processes in Discharge Plasmas, 7–26. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4684-5305-8_2.
Full textBradshaw, Stephen J., and John Raymond. "Collisional and Radiative Processes in Optically Thin Plasmas." In Microphysics of Cosmic Plasmas, 195–230. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4899-7413-6_8.
Full textAstapenko, V. A., L. A. Bureyeva, and V. S. Lisitsa. "Plasma Models of Atom and Radiative-Collisional Processes." In Reviews of Plasma Physics, 1–207. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0027-8_1.
Full textConference papers on the topic "Processus radiatif collisionnel"
Preval, S. P., N. R. Badnell, and M. G. O’Mullane. "The Tungsten Project: Dielectronic recombination data for collisional-radiative modelling in ITER." In ATOMIC PROCESSES IN PLASMAS APIP 2016: Proceedings of the 18th and 19th International Conference on Atomic Processes in Plasmas. Author(s), 2017. http://dx.doi.org/10.1063/1.4975714.
Full textOkamoto, Atsushi. "Ion collision effect in collisional radiative processes in magnetized plasma." In PROCEEDINGS OF THE 14TH ASIA-PACIFIC PHYSICS CONFERENCE. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0037007.
Full textBadnell, N. R., W. J. Dickson, D. C. Griffin, M. S. Pindzola, and H. P. Summers. "Density and field effects on dielectronic recombination in a generalized collisional-radiative model." In The 9th American Physical Society topical conference on atomic processes in plasmas. AIP, 1995. http://dx.doi.org/10.1063/1.47080.
Full textKogan, V. I., A. B. Kukushkin, V. S. Lisitsa, Malcolm Haines, and Andrew Knight. "Analytic Methods for Radiative-Collisional Processes in Plasmas with Multiply Charged Ions." In DENSE Z-PINCHES: Third International Conference. AIP, 1994. http://dx.doi.org/10.1063/1.2949143.
Full textNomachi, Kentaro, Tomohiro Iwahori, Kensuke Oki, Bei Ma, Ken Morita, and Yoshihiro Ishitani. "Introducing of biexciton processes into exciton dynamics simulation for GaN based on collisional phononic and radiative model." In 2016 Compound Semiconductor Week (CSW) [Includes 28th International Conference on Indium Phosphide & Related Materials (IPRM) & 43rd International Symposium on Compound Semiconductors (ISCS)]. IEEE, 2016. http://dx.doi.org/10.1109/iciprm.2016.7528839.
Full textReports on the topic "Processus radiatif collisionnel"
Rhodes, Charles, and Ting S. Luk. Studies of Collisional and Nonlinear Radiative Processes for Development of Coherent UV and XUV Sources. Fort Belvoir, VA: Defense Technical Information Center, June 1991. http://dx.doi.org/10.21236/ada253402.
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