Download or read book PROBLEMES POSES PAR L ACCELERATION D IONS RADIOACTIFS DANS LE PROJET SPIRAL REGLAGE ET STABILISATION DE L ACCELERATEUR written by LIONEL.. BOY and published by . This book was released on 1997 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE ETUDE S'INSCRIT DANS LE CADRE DU PROJET SPIRAL QUI CONSISTE A PRODUIRE, PUIS A L'ACCELERER AVEC UN CYCLOTRON, DES FAISCEAUX D'IONS RADIOACTIFS CREES DANS UNE CIBLE EPAISSE PAR LE FAISCEAU PRIMAIRE DU GRAND ACCELERATEUR NATIONAL D'IONS LOURDS. LA FAIBLE INTENSITE DE CES FAISCEAUX RADIOACTIFS ET LA PRESENCE DE POLLUANTS D'INTENSITE EGALE OU SUPERIEURE A CELLE DU FAISCEAU DESIRE IMPLIQUE LA MISE AU POINT DE NOUVELLES METHODES DE REGLAGE ET DES DIAGNOSTICS QUI Y SONT ASSOCIES. AINSI, L'ENSEMBLE DU POST-ACCELERATEUR SERA PREREGLE SUR UN FAISCEAU D'IONS STABLES, DIFFERENTES METHODES PERMETTANT ENSUITE DE PASSER CE CET ION STABLE A L'ION RADIOACTIF DESIRE. NOUS PRESENTONS UNE ETUDE THEORIQUE DE CE PROCESSUS AINSI QU'UNE SIMULATION NUMERIQUE DETAILLEE DU REGLAGE DE CINQ FAISCEAUX RADIOACTIFS DIFFERENTS A L'AIDE DE TROIS METHODES. LE COMPORTEMENT DU FAISCEAU EST SIMULE DANS LA LIGNE D'INJECTION ET DANS LE CYCLOTRON JUSQU'AU DEFLECTEUR ELECTROSTATIQUE D'EJECTION. NOUS DECRIVONS AUSSI DANS LE CONTEXTE DE CES METHODES L'ENSEMBLE DES DIAGNOSTICS DE FAISCEAU INSTALLES SUR SPIRAL. UNE ATTENTION PARTICULIERE EST PORTEE A LA CONCEPTION ET AU TEST D'UN CAPTEUR, BASE SUR UN SCINTILLATEUR PLASTIQUE, PERMETTANT DE MESURER LA PHASE D'UN FAISCEAU D'IONS DE FAIBLE INTENSITE EN COURS D'ACCELERATION DANS LE CYCLOTRON.
Download or read book PRODUCTION DE FAISCEAUX D IONS RADIOACTIFS MULTICHARGES POUR SPIRAL written by LAURENT.. MAUNOURY and published by . This book was released on 1998 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE S'INSCRIT DANS LE CADRE DU PROJET SPIRAL QUI CONSISTE A PRODUIRE PUIS A ACCELERER UN FAISCEAU D'IONS RADIOACTIFS MULTICHARGES. CE TRAVAIL A PORTE ESSENTIELLEMENT SUR LA PARTIE PRODUCTION ET IONISATION DU FAISCEAU D'IONS RADIOACTIFS. UN PREMIER ENSEMBLE CIBLE-SOURCE (NANOGAN II) A ETE ETUDIE, REALISE PUIS TESTE. IL EST DESTINE UNIQUEMENT A LA PRODUCTION DE FAISCEAUX D'IONS RADIOACTIFS MULTICHARGES DE TYPE GAZ. DES TESTS HORS LIGNE ET EN LIGNE ONT MONTRE QUE CET ENSEMBLE REPOND AU CAHIER DES CHARGES DU PROJET SPIRAL ET QU'IL EST FIN PRET A ETRE MIS EN FONCTIONNEMENT DANS LA CASEMATE DE PRODUCTION. A PARTIR DE CES TESTS, LES INTENSITES DISPONIBLES DES FUTURS FAISCEAUX DE SPIRAL ONT ETE CALCULEES. UNE ETUDE DETAILLEE DE LA DIFFUSION D'UN ATOME DANS UNE CIBLE DE CARBONE A ETE FAITE. L'EXPRESSION DE L'EFFICACITE DE DIFFUSION, A PARTIR DES EQUATIONS DE LA DIFFUSION (LOIS DE FICK), A ETE DEDUITE. CETTE EFFICACITE DEPEND DES PARAMETRES SUIVANTS : LA TEMPERATURE, LA TAILLE DES GRAINS COMPOSANT LA CIBLE, LES COEFFICIENTS D'ARRHENIUS ET LA PERIODE RADIOACTIVE. LE DEVELOPPEMENT DE TROIS METHODES EXPERIMENTALES ET LA CONFRONTATION EXPERIENCE / THEORIE ONT PERMIS DE COMPRENDRE CE PROCESSUS DANS LA CIBLE DE PRODUCTION ET DE DEDUIRE LES COEFFICIENTS D'ARRHENIUS POUR LES GAZ RARES. UNE AUTRE ETUDE DES CIBLES DE PRODUCTION EST PRESENTEE. ELLE CONCERNE LA DISTRIBUTION DE TEMPERATURE PERMETTANT LEUR UTILISATION PENDANT PLUS D'UN MOIS A UNE TEMPERATURE DE 2400 K. DEUX DEVELOPPEMENTS ONT ETE ETUDIES POUR LE FUTUR DE SPIRAL. LE PREMIER (1+/N+) CONSISTE EN LA TRANSFORMATION D'UN FAISCEAU MONOCHARGE EN UN FAISCEAU MULTICHARGE GRACE A UNE SOURCE R.C.E. CECI PERMETTRA D'UTILISER LA SOURCE MULTICHARGEE HORS DE LA CASEMATE DE PRODUCTION ET AINSI D'AVOIR DES SOURCES MONOCHARGEES ADAPTEES A DE NOMBREUX TYPES D'ELEMENTS. L'AUTRE DEVELOPPEMENT (SPIRAL-II) EST DESTINE A LA PRODUCTION D'ATOMES RADIOACTIFS RICHES EN NEUTRONS CREES PAR LA FISSION DE L'URANIUM INDUITE PAR DES NEUTRONS RAPIDES. LE FAISCEAU DE NEUTRONS EST PRODUIT PAR LE STRIPPING/BREAK-UP D'UN FAISCEAU DE DEUTONS DANS UN CONVERTISSEUR. CETTE SOLUTION, TRES PROMETTEUSE, EST EN COURS D'ETUDE ET FAIT PARTIE D'UN PROGRAMME DE RECHERCHE EUROPEEN.
Download or read book Analytical Methods in the Nuclear Fuel Cycle written by and published by . This book was released on 1972 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantum Theory of Finite Systems written by Jean-Paul Blaizot and published by Mit Press. This book was released on 1986 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and pedagogical account of the various methods used in the quantum theory of finite systems, including molecular, atomic, nuclear, and particle phenomena. Covering both background material and advanced topics and including nearly 200 problems, Quantum Theory of Finite Systems has been designed to serve primarily as a text and will also prove useful as a reference in research. The first of the book's four parts introduces the basic mathematical apparatus: second quantization, canonical transformations, Wick theorems and the resulting diagram expansions, and oscillator models. The second part presents mean field approximations and the recently developed path integral methods for the quantization of collective modes. Part three develops perturbation theory in terms of both time-dependent Feynman diagrams and time-independent Goldstone diagrams. A fourth part discusses variational methods based on correlated wavefunctions, including spin correlations. The approximation schemes are formulated for fermions and bosons at eigher zero or non-zero temperature. Although the formalism developed applies to both finite and infinite systems, the book stresses those aspects of the theory that are specific to the description of finite systems. Thus special attention is given to mean field approximations, the ensuing broken symmetries, and the associated collective motions such as rotations. Conversely, some specific features of systems with infinite numbers of degrees of freedom (such as the thermodynamic limit, critical phenomena, and the elimination of ultraviolet divergencies) are deliberately omitted. Jean-Paul Blaizot and Georges Ripka are associated with the Centre d'Etudes Nucleaires de Saclay.
Download or read book Applied Reactor Physics written by Alain Hébert and published by Presses inter Polytechnique. This book was released on 2009 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transport Theory written by James J. Duderstadt and published by John Wiley & Sons. This book was released on 1979 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Problems after each chapter
Download or read book Africa Since 1935 written by Unesco. International Scientific Committee for the Drafting of a General History of Africa and published by Univ of California Press. This book was released on 1999 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hardcover edition of volume 8 was published in 1994. This paperback edition is the eighth and final volume to be published in the UNESCO General History of Africa. Volume 8 examines the period from 1935 to the present, and details the role of African states in the Second World War and the rise of postwar Africa. This is one of the most important books in the entire series, and as such, it is an unabridged paperback.
Download or read book Nuclear Computational Science written by Yousry Azmy and published by Springer Science & Business Media. This book was released on 2010-04-15 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear engineering has undergone extensive progress over the years. In the past century, colossal developments have been made and with specific reference to the mathematical theory and computational science underlying this discipline, advances in areas such as high-order discretization methods, Krylov Methods and Iteration Acceleration have steadily grown. Nuclear Computational Science: A Century in Review addresses these topics and many more; topics which hold special ties to the first half of the century, and topics focused around the unique combination of nuclear engineering, computational science and mathematical theory. Comprising eight chapters, Nuclear Computational Science: A Century in Review incorporates a number of carefully selected issues representing a variety of problems, providing the reader with a wealth of information in both a clear and concise manner. The comprehensive nature of the coverage and the stature of the contributing authors combine to make this a unique landmark publication. Targeting the medium to advanced level academic, this book will appeal to researchers and students with an interest in the progression of mathematical theory and its application to nuclear computational science.
Download or read book Polymers for Gas Separation written by Naoki Toshima and published by Wiley-VCH. This book was released on 1992 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sisters Super Creeps and Slushy Gushy Love Songs written by Karen McCombie and published by . This book was released on 2011 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ally knows her super-efficient big sis Linn finds their chaotic family a bit ... exasperating. But when Linn falls for Q, the tearaway lead singer in a local band, all her sensible ways go out of the window. Everyone else can see that Q's a creep, but does Ally have the courage to burst Linn's heart-shaped bubble?
Download or read book The Physics of Nuclear Reactors written by Serge Marguet and published by Springer. This book was released on 2018-02-26 with total page 1462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume offers readers a progressive and highly detailed introduction to the complex behavior of neutrons in general, and in the context of nuclear power generation. A compendium and handbook for nuclear engineers, a source of teaching material for academic lecturers as well as a graduate text for advanced students and other non-experts wishing to enter this field, it is based on the author’s teaching and research experience and his recognized expertise in nuclear safety. After recapping a number of points in nuclear physics, placing the theoretical notions in their historical context, the book successively reveals the latest quantitative theories concerning: • The slowing-down of neutrons in matter • The charged particles and electromagnetic rays • The calculation scheme, especially the simplification hypothesis • The concept of criticality based on chain reactions • The theory of homogeneous and heterogeneous reactors • The problem of self-shielding • The theory of the nuclear reflector, a subject largely ignored in literature • The computational methods in transport and diffusion theories Complemented by more than 400 bibliographical references, some of which are commented and annotated, and augmented by an appendix on the history of reactor physics at EDF (Electricité De France), this book is the most comprehensive and up-to-date introduction to and reference resource in neutronics and reactor theory.
Download or read book Yvain written by Chretien de Troyes and published by Yale University Press. This book was released on 1987-09-10 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: A twelfth-century poem by the creator of the Arthurian romance describes the courageous exploits and triumphs of a brave lord who tries to win back his deserted wife's love
Download or read book Selected Measurement Methods for Plutonium and Uranium in the Nuclear Fuel Cycle written by Clement James Rodden and published by . This book was released on 1972 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Mechanisms of Hormone Action written by Gesellschaft für Biologische Chemie. Colloquium and published by . This book was released on 1989 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reactor Dosimetry written by Harry Farrar and published by ASTM International. This book was released on 1994 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 8th ASTM-Euratom Symposium, held in Vail, Colorado, Aug.-Sept. 1993, to provide a forum for experts to discuss their latest results under the broad theme of dosimetry for the correlation of radiation effects. Preceded by a summary of the keynote presentations and followed by summa
Download or read book Charles Pettigrew First Bishop elect of the North Carolina Episcopal Church written by Bennett H Wall and published by Hassell Street Press. This book was released on 2021-09-10 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
