Laser isotope separation in atomic vapor [[electronic resource] /] / P.A. Bokhan ... [et al.]

• Record Nr.: UNINA9910144715903321
• Pubbl/distr/stampa: Weinheim, : Wiley-VCH, 2006
• ISBN: 1-280-72305-X; 9786610723058; 3-527-60894-X; 3-527-60867-2
• Descrizione fisica: 1 online resource (202 p.)
• Altri autori (Persone): BokhanP. A
• Disciplina: 541.388
• Soggetti: Lasers in isotope separation; Isotope separation; Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Laser Isotope Separation in Atomic Vapor; Foreword; Preface; Contents; 1 Laser Isotope Separation in Atomic Vapors; 1.1 Introduction; 1.2 Brief Description of the AVLIS Process as Applied to Uranium; 1.3 General Description of the AVLIS Process; 1.4 Theoretical Description of the AVLIS Process; 1.4.1 Theoretical Description of the Method for Incoherent Interaction Between Radiation and Atoms; 1.4.2 Features of Coherent Two-Photon Excitation; 1.4.3 Evaporation of Separated Material, Collimation of an Atomic Beam, and Ion Extraction; 1.5 Photochemical Laser Isotope Separation in Atomic Vapors; 1.6 Other Methods of Isotope Separation2 Laser Technique for Isotope Separation; 2.1 Introduction; 2.2 General Requirements for a Laser System in the AVLIS Process; 2.3 Laser Complex; 2.3.1 Pumping Lasers; 2.3.2 Tunable Lasers; 2.4 Complexes for Laser Isotope Separation; 3 Chemical Reactions of Atoms in Excited States; 3.1 General View of Photochemical Reactions; 3.2 Experimental Study of Photochemical Reactions Between Atoms and Molecules; 3.3 Collisional Quenching of Excited Atomic States by Molecules; 3.4 Resonance Transfer of Excitation in Collisions; 3.5 Collisional Processes with Rydberg Atoms3.6 Isotope Exchange Reactions; 3.7 Radical Reactions in Collisions; 4 Isotope Separation by Single-Photon Isotope-Selective Excitation of Atom; 4.1 Description of the Method; 4.2 Mathematical Model of the Method; 4.3 Calculation Results on Isotope-Selective Excitation of Zinc Atoms; 4.3.1 Transversal Gas Circulation; 4.3.2 Longitudinal Gas Circulation; 4.4 Output Parameters Versus the Detuning of Radiation Frequency; 4.5 Influence of the Radiation Line Profile on Output Characteristics of the Separation Process; 4.6 Experiments on Laser Separation of Zn Isotopes by the Photochemical Method4.7 Experiments on Laser Separation of Rubidium Isotopes by the Photochemical Method; 5 Coherent Isotope-Selective Two-Photon Excitation of Atoms; 5.1 Brief Description of Two-Photon Excitation and the Mathematical Model; 5.2 Two-Photon Excitation of Led Atoms; 5.3 Two-Photon Excitation of Boron and Silica Atoms; 5.4 Photochemical Separation of Zinc Isotopes by Means of the Two-Photon Excitation; 5.4.1 Description of the Method; 5.4.2 Polarization of Radiation; 5.4.3 Mathematical Model of Cascade Superluminescence; 5.4.4 Calculation Results5.4.5 Experimental Results; 5.5 Zinc Isotope Separation by Evaporating Material from Chamber Walls; 5.5.1 Problem Statement; 5.5.2 Physical Analysis; 5.5.3 Calculation Results and Their Analysis; 5.5.4 Influence of Diffusion Processes on the Selectivity of Isotope Separation; 6 Prospects for Industrial Isotope Production by Methods of Laser Isotope Separation; 6.1 Microelectronics and Optoelectronics; 6.2 Nuclear Fuel Cycle; 6.3 Medicine and Biology; 7 Appendix A: Mathematical Description of the Processes Based on Kinetic Equations; 8 Appendix B: Operation Features of Copper-Vapor Laser Complexes
• Sommario/riassunto: Written by leading Russian scientists, including Nobel laureate, A.M. Prokhorov (1916-2002), this first book on this important technology allows an understanding of the physics of atomic vapor laser isotope separation and new photochemical methods of laser isotope separation. One entire chapter is devoted to chemical reactions of atoms in excited states, while further chapters deal with the separation of isotopes by one photon isotope-selective and coherent isotope-selective two photon excitation of atoms. A final chapter looks at the prospects for the industrial production of isotope prod

André Gide / a cura di Vito Carofiglio

• Record Nr.: UNISALENTO991003612089707536
• Autore: Gide, André
• Pubbl/distr/stampa: Milano : Nuova Accademia, c1964
• Descrizione fisica: 160 p. ; 18 cm
• Collana: I cristalli
• Altri autori (Persone): Carofiglio, Vito
• Disciplina: 843.9
• Lingua di pubblicazione: Italiano
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Contiene una selezione di poesie con testo orig. a fronte

Bertrand de Jouvenel (1903-1987), pionnier méconnu de l'écologie politique / / Ivo Rens

• Record Nr.: UNINA9910132622603321
• Autore: Rens Ivo
• Pubbl/distr/stampa: Chicoutimi : , : J.-M. Tremblay, , 2008
• ISBN: 1-4123-6337-3
• Descrizione fisica: 1 online resource (31 pages)
• Collana: Classiques des sciences sociales ; ; 3260
• Disciplina: 304.2
• Soggetti: Political ecology; Green movement
• Lingua di pubblicazione: Francese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di contenuto: Résumé; Intoduction.
• Sommario/riassunto: Bien que l'historiographie de la science écologique et de l'écologie politique se soit enrichie ces années dernières de nombreuses études ; qui en ont mis en lumière les sources multiples, il s'en faut de beaucoup que tout ait été dit, notamment en ce qui concerne la genèse de l'écologie politique. Cet article tend à établir que le politologue, économiste et prospectiviste français Bertrand de Jouvenel fut, dès 1957, l'un des premiers sinon le premier à avoir lancé l'expression d'"écologie politique" dans le sens qui lui est actuellement conféré et à avoir proposé que l'économie politique s'intègre dans cette discipline plus vaste et plus fondamentale.