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Etude Experimentale De Lemission Electronique Secondaire De Cibles Minces De Carbone Sous Limpact De Projectiles Rapides
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Book Synopsis ETUDE EXPERIMENTALE DE L'EMISSION ELECTRONIQUE SECONDAIRE DE CIBLES MINCES DE CARBONE SOUS L'IMPACT DE PROJECTILES RAPIDES by : ANNICK.. BILLEBAUD
Download or read book ETUDE EXPERIMENTALE DE L'EMISSION ELECTRONIQUE SECONDAIRE DE CIBLES MINCES DE CARBONE SOUS L'IMPACT DE PROJECTILES RAPIDES written by ANNICK.. BILLEBAUD and published by . This book was released on 1995 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE THEME CENTRAL DE CE TRAVAIL EST L'ETUDE DE L'EMISSION ELECTRONIQUE PAR LES SURFACES D'UNE CIBLE SOLIDE MINCE LORSQU'ELLE EST TRAVERSEE PAR DES PROJECTILES CHARGES RAPIDES. LE RALENTISSEMENT DANS LA MATIERE D'UN ION RAPIDE SE FAIT ESSENTIELLEMENT PAR DES PROCESSUS D'INTERACTION INELASTIQUES AVEC LES ELECTRONS DU MILIEU (IONISATIONS, EXCITATIONS): CE TRANSFERT D'ENERGIE AUX ELECTRONS DU SOLIDE EST A L'ORIGINE DU PHENOMENE D'EMISSION ELECTRONIQUE SECONDAIRE. LA DESCRIPTION PHENOMENOLOGIQUE ET THEORIQUE DE CE PHENOMENE FAIT L'OBJET DU PREMIER CHAPITRE. NOUS NOUS SOMMES INTERESSES A L'EMISSION ELECTRONIQUE DE FEUILLES MINCES DE CARBONE BOMBARDEES PAR DIFFERENTS TYPES DE PROJECTILES. LA MESURE DE L'EMISSION ELECTRONIQUE INDUITE PAR L'IMPACT D'AGREGATS D'HYDROGENE ENTRE 40 ET 120 KEV/PROTON FAIT L'OBJET DU SECOND CHAPITRE. CES PROJECTILES, CONSTITUES DE PLUSIEURS ATOMES, NOUS ONT PERMIS DE METTRE EN EVIDENCE ET D'ETUDIER LES EFFETS COLLECTIFS D'UNE TELLE INTERACTION. NOUS AVONS ETENDU NOTRE ETUDE DE L'EMISSION ELECTRONIQUE A DES PROJECTILES D'HYDROGENE MOLECULAIRE ET ATOMIQUE, AINSI QU'A DES IONS HYDROGENE NEGATIFS, A DES ENERGIES INFERIEURES A 2 MEV: GRACE A LA MISE AU POINT D'UN DISPOSITIF EXPERIMENTAL PERMETTANT DE MESURER LA STATISTIQUE DES ELECTRONS SECONDAIRES, NOUS AVONS PU ETUDIER, ENTRE AUTRES, LE ROLE JOUE PAR LES ELECTRONS DU PROJECTILE SUR L'EMISSION D'ELECTRONS. NOUS DECRIVONS CETTE EXPERIENCE DANS LE CHAPITRE TROIS. ENFIN, LE CHAPITRE QUATRE DECRIT LA MESURE DE RENDEMENTS ELECTRONIQUES INDUITS PAR DES IONS ARGON TRES ENERGETIQUES (13 MEV/U) ET HAUTEMENT CHARGES DELIVRES PAR LA SORTIE MOYENNE ENERGIE (SME) DU GANIL DE CAEN, QUE NOUS AVONS ANALYSEE DANS LE CADRE D'UN MODELE SEMI-EMPIRIQUE DE L'EMISSION ELECTRONIQUE SECONDAIRE. L'ENSEMBLE DE CES EXPERIENCES APPORTE DE NOUVEAUX RESULTATS SUR L'INTERACTION DE PROJECTILES COMPOSES DE PLUSIEURS CONSTITUANTS AVEC LA MATIERE, AINSI QUE SUR LES CONSEQUENCES D'IMPORTANTS DEPOTS D'ENERGIE DANS LES SOLIDES
Book Synopsis ETUDE DE L'EMISSION ELECTRONIQUE DE CIBLES DE CARBONE IRRADIEES PAR DES IONS LOURDS RAPIDES by : Matthias Jung
Download or read book ETUDE DE L'EMISSION ELECTRONIQUE DE CIBLES DE CARBONE IRRADIEES PAR DES IONS LOURDS RAPIDES written by Matthias Jung and published by . This book was released on 1997 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS AVONS MESURE LES RENDEMENTS D'EMISSION ELECTRONIQUE VERS L'AVANT ET VERS L'ARRIERE DE CIBLES MINCES DE CARBONE SOUMISES A UN BOMBARDEMENT D'IONS LOURDS RAPIDES, EN FONCTION DE L'EPAISSEUR DES CIBLES AINSI QUE DU NUMERO ATOMIQUE ET DE L'ENERGIE DES PROJECTILES (6 ZP 92 ; 3,7 EP 74 MEV/U). AFIN DE CARACTERISER LE TRANSPORT D'ELECTRONS (ET DONC LE TRANSPORT DE L'ENERGIE) DANS LE SOLIDE, NOUS AVONS ANALYSE LES RENDEMENTS MESURES DANS LE CADRE DU MODELE PHENOMENOLOGIQUE DE STERNGLASS. COMME LA VERSION INITIALE DE CE MODELE NE PERMETTAIT PAS DE DECRIRE CORRECTEMENT L'EVOLUTION DES RENDEMENTS ARRIERE EN FONCTION DE L'EPAISSEUR, DESACCORD QUE NOUS AVONS ATTRIBUE A LA RETRODIFFUSION D'ELECTRONS RAPIDES DECLENCHANT DES CASCADES D'ELECTRONS VERS L'ARRIERE, NOUS AVONS MODIFIE LE MODELE DE FACON A TENIR COMPTE DE CE PHENOMENE. LE MODELE MODIFIE PERMET DE DECRIRE PARFAITEMENT L'EVOLUTION DES RENDEMENTS ET CONSTITUE UN OUTIL PUISSANT POUR LA COMPARAISON ET L'ESTIMATION DES RENDEMENTS ELECTRONIQUES INDUITS PAR UNE GRANDE VARIETE D'IONS D'ENERGIE ET DE NUMERO ATOMIQUE DIFFERENTS. NOUS AVONS MIS EN EVIDENCE UNE ANISOTROPIE IMPORTANTE DANS LE COMPORTEMENT DES RENDEMENTS AVANT ET ARRIERE EN FONCTION DU NUMERO ATOMIQUE ET DE L'ENERGIE DES PROJECTILES. CELLE-CI TRADUIT L'EVOLUTION DE LA DISTRIBUTION EN ANGLE ET EN ENERGIE DES ELECTRONS AU MOMENT DE LEUR LIBERATION DANS LE SOLIDE EN FONCTION DE CES PARAMETRES ET A POUR CONSEQUENCE LE FAIT QUE DANS LE CAS DES IONS LOURDS LES RENDEMENTS ELECTRONIQUES NE VARIENT PAS COMME LE POUVOIR D'ARRET, CONTRAIREMENT A CE QUI EST OBSERVE DANS UNE TRES GRANDE GAMME D'ENERGIE POUR DES PROTONS. NOUS AVONS ENFIN CONCU, REALISE, MIS AU POINT ET TESTE UN NOUVEAU DISPOSITIF DE SPECTROSCOPIE D'ELECTRONS SOUS ULTRAVIDE QUI PERMETTRA D'ABOUTIR A UNE CONNAISSANCE PLUS PRECISE DE L'EMISSION ELECTRONIQUE AINSI QU'A UNE MEILLEURE COMPREHENSION DE L'INTERACTION DES IONS LOURDS RAPIDES AVEC LA MATIERE.
Book Synopsis ETUDE DE L'EMISSION IONIQUE SECONDAIRE SOUS IMPACT D'AGREGATS. INFLUENCE DE LA VITESSE DU NOMBRE D'ATOMES DANS LE PROJECTILE ET DE L'EPAISSEUR DE LA CIBLE by : KARIMA.. BOUSSOFIANE-BAUDIN
Download or read book ETUDE DE L'EMISSION IONIQUE SECONDAIRE SOUS IMPACT D'AGREGATS. INFLUENCE DE LA VITESSE DU NOMBRE D'ATOMES DANS LE PROJECTILE ET DE L'EPAISSEUR DE LA CIBLE written by KARIMA.. BOUSSOFIANE-BAUDIN and published by . This book was released on 1993 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS AVONS ETUDIE L'EMISSION IONIQUE SECONDAIRE A PARTIR DE FILMS ORGANIQUES ET METALLIQUES BOMBARDES PAR DES AGREGATS DE 10 A 60 KEV D'ENERGIE. LES PARAMETRES ESSENTIELS DE CETTE ETUDE SONT LA VITESSE DES PROJECTILES, LE NOMBRE DE CONSTITUANTS DU PROJECTILE ET LA PROFONDEUR D'EMISSION DES IONS SECONDAIRES. NOUS MONTRONS QUE POUR DES AGREGATS A FAIBLES NOMBRES DE CONSTITUANTS COMME LES AGREGATS D'OR (AU#N#+ N=1 A 5) LES TAUX D'EMISSION IONIQUE SECONDAIRE AUGMENTENT NON LINEAIREMENT AVEC LE NOMBRE D'ATOMES DANS LE PROJECTILE. LES RENDEMENTS D'EMISSION IONIQUE SECONDAIRE VERIFIENT LA RELATION SIMPLE Y=K.N#.VI#2 OU VI EST LA VITESSE DU PROJECTILE ET DEPEND DES IONS SECONDAIRES EMIS. LORSQUE LE NOMBRE D'ATOMES DANS L'AGREGAT AUGMENTE COMME DANS LE CAS DES PROJECTILES POLYATOMIQUES C#2#4H#1#2#+, C#3#7#+, C#6#0#+ ET C#7#0#+ L'EFFET NON LINEAIRE SATURE. LES TAUX D'EMISSION IONIQUE SECONDAIRE S'EXPRIMENT SIMPLEMENT EN FONCTION DE L'ENERGIE DU PROJECTILE PAR LA RELATION Y=K.E. NOUS MONTRONS QUE LORSQUE LE VOLUME D'INTERACTION EST PLUS FAIBLE QUE LE VOLUME D'EMISSION, ALORS UNE TRES GRANDE DENSITE D'ENERGIE EST DEPOSEE PRES DE LA SURFACE. CECI ENTRAINE D'UNE PART L'AUGMENTATION DES TAUX D'EMISSION IONIQUE SECONDAIRE ET D'AUTRE PART LA SATURATION DES EFFETS NON LINEAIRES. LA PROFONDEUR D'EMISSION DES IONS SECONDAIRES A ETE ETUDIEE SUR DES CIBLES LANGMUIR-BLODGETT ET SOUS IMPACT D'AGREGATS D'OR. ELLE EST PROCHE DE 10 NM POUR UNE ENERGIE DU PROJECTILE AU#+ DE 20 KEV DE 7 NM POUR LES AGREGATS AU#2#+ ET AU#3#+ ET SEULEMENT DE 5 NM POUR LES AGREGATS LES PLUS GROS AU#4#+ ET AU#5#+
Book Synopsis Etude comparée de l'émission électronique secondaire consécutive à l'impact de particules chargées ou neutres de faible énergie sur une surface métallique by : Ali Katrib
Download or read book Etude comparée de l'émission électronique secondaire consécutive à l'impact de particules chargées ou neutres de faible énergie sur une surface métallique written by Ali Katrib and published by . This book was released on 1969 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis INFLUENCE DE LA TRANSITION CRISTAL-AMORPHE SUR L'EMISSION ELECTRONIQUE SECONDAIRE ET L'EMISSION AUGER DU SILICIUM IRRADIE PAR DES IONS DE GAZ RARES by : PASCAL.. HECQUET
Download or read book INFLUENCE DE LA TRANSITION CRISTAL-AMORPHE SUR L'EMISSION ELECTRONIQUE SECONDAIRE ET L'EMISSION AUGER DU SILICIUM IRRADIE PAR DES IONS DE GAZ RARES written by PASCAL.. HECQUET and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CE MEMOIRE CONCERNE L'ETUDE DE L'EMISSION ELECTRONIQUE SECONDAIRE (INCLUANT L'EMISSION AUGER) OBSERVEE LORS DE L'IRRADIATION DE CIBLES DE SI(111) PAR DES IONS DE GAZ RARES DE MOYENNE ENERGIE (5-80 KEV). SUR LE PLAN EXPERIMENTAL, L'EXPLOITATION DES DISTRIBUTIONS D'ENERGIE DES ELECTRONS SECONDAIRES CONDUIT A L'OBTENTION DES COEFFICIENTS D'EMISSION ELECTRONIQUE (NOMBRE D'ELECTRONS PAR ION INCIDENT) ET DES VALEURS ABSOLUES DES RENDEMENTS AUGER. LA VARIATION DE CES GRANDEURS EN FONCTION DE LA TEMPERATURE DE LA CIBLE PERMET DE DETERMINER LES TEMPERATURES DE TRANSITION DE PHASE CRISTAL-AMORPHE SOUS IRRADIATION. L'INFLUENCE DE L'ENERGIE, DE LA NATURE ET DE L'ANGLE D'INCIDENCE DU FAISCEAU SONT ETUDIEES. UN MODELE DE SIMULATION NUMERIQUE DE L'EMISSION AUGER A ETE ELABORE. IL EST BASE SUR LE DEVELOPPEMENT DES CASCADES DE COLLISIONS ATOMIQUES DANS LES SOLIDES (CODE MARLOWE). LA 1ERE PARTIE DE CE TRAVAIL FAIT LE POINR SUR LES CONNAISSANCES THEORIQUES ACTUELLES CONCERNANT L'INTERACTION D'IONS LOURDS ENERGETIQUES AVEC LA MATIERE CONDENSEE. L'ACCENT EST MIS PARTICULIEREMENT SUR LES PROBLEMES D'AMORPHISATION DE CIBLES SEMICONDUCTRICES. L'ENSEMBLE EXPERIMENTAL, DECRIT DANS LA 2EME PARTIE, SE COMPOSE D'UN ACCELERATEUR DE PARTICULES ET D'UNE ENCEINTE DE MESURE A ULTRAVIDE. UN SYSTEME D'ANALYSE A POTENTIEL RETARDATEUR AVEC DERIVATION ELECTRONIQUE ET DETECTION SYNCHRONE DONNE LA DISTRIBUTION D'ENERGIE DES ELECTRONS SECONDAIRES EMIS AVEC UNE ENERGIE COMPRISE ENTRE 0 ET QUELQUES CENTAINES EV. DANS UNE DERNIERE PARTIE, LES RESULTATS EXPERIMENTAUX SONT PRESENTES ET DISCUTES EN COMPARAISON AVEC LES DONNEES DU MODELE DE SIMULATION NUMERIQUE
Book Synopsis Etude de l'émission secondaire d'électrons de cibles épais ses, soumises au bombardement de protons d'énergie 1 MeV by : Anne-Marie Bergdolt (née Eschmann)
Download or read book Etude de l'émission secondaire d'électrons de cibles épais ses, soumises au bombardement de protons d'énergie 1 MeV written by Anne-Marie Bergdolt (née Eschmann) and published by . This book was released on 1963 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ETUDE DE COUCHES MINCES DE CARBONE ET DE LEURS PROPRIETES D'EMISSION ELECTRONIQUE APPLICATION AUX ECRANS PLATS A EFFET DE CHAMP by : JACQUES.. BAYLET
Download or read book ETUDE DE COUCHES MINCES DE CARBONE ET DE LEURS PROPRIETES D'EMISSION ELECTRONIQUE APPLICATION AUX ECRANS PLATS A EFFET DE CHAMP written by JACQUES.. BAYLET and published by . This book was released on 2000 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL CONCERNE L'ETUDE DE COUCHES MINCES DE CARBONE ET DE LEURS PROPRIETES D'EMISSION ELECTRONIQUE, EN VUE DE LEUR UTILISATION COMME EMETTEURS D'ELECTRONS DANS DES ECRANS PLATS A EFFET DE CHAMP (FED). NOS MESURES D'EMISSION FROIDE SUR DES FILMS DE DIAMANT POLYCRISTALLIN ET DE CERTAINS CARBONES AMORPHES (A-C) DEPOSES PAR CVD OU PVD MONTRENT QUE CE NE SONT PAS DE BONS EMETTEURS D'ELECTRONS. NOUS AVONS PAR CONTRE OBTENU DE BONS RESULTATS AVEC DES COUCHES DE A-C DEPOSEES PAR ABLATION LASER, ET AVEC DES COUCHES DE GRAPHITE NERVURE DEPOSEES PAR RCE-MWCVD OU PAR RFCVD (CHAMPS SEUILS RESPECTIFS DE 15, 30 ET 35 V/M). NOUS AVONS MIS AU POINT UN PROCEDE ORIGINAL DE DEPOT UTILISANT CETTE DERNIERE TECHNIQUE. L'ANALYSE DES TESTS I(E) ET LES RESULTATS DES CARACTERISATIONS PHYSICO-CHIMIQUES (RAMAN, XPS, MET, MEB, RX, ERDA) SONT UTILISES POUR ETUDIER LES DIFFERENCES DE STRUCTURE ENTRE LES MATERIAUX TESTES, ET POUR COMPRENDRE LE MECANISME D'EMISSION FROIDE DEPUIS CES COUCHES : - LES COUCHES DE A-C CONTIENNENT QUELQUES GRAINS DE GRAPHITE ET SONT COUVERTES D'ESCARBILLES GRAPHITIQUES, CE QUI NOUS CONDUIT A EXPLIQUER L'EMISSION PAR LA FORMATION DE NANOSTRUCTURES CONDUCTRICES, QUI JOUENT LE ROLE DE CANAUX POUR LE TRANSPORT DES ELECTRONS, ET DE POINTES POUR L'AMPLIFICATION DU CHAMP A LEUR EXTREMITE. - LES COUCHES DE GRAPHITE NERVURE ONT UNE MORPHOLOGIE DE SURFACE TRES MARQUEE, AVEC DES PROTRUSIONS D'ENVIRON 10 NM DE RAYON DE COURBURE, ET CONSTITUEES DE PLANS DE GRAPHITE. NOUS ATTRIBUONS LEUR EMISSION A L'EFFET DE POINTE SUR CES PROTRUSIONS ET A UNE EMISSION FROIDE DE TYPE FOWLER-NORDHEIM. DES CATHODES D'ECRANS PLATS SONT TESTEES, AVEC DES EMETTEURS CONSTITUES DE PLOTS DE CARBONE EN LIEU ET PLACE DES MICROPOINTES METALLIQUES. LES MEILLEURS RESULTATS SONT OBTENUS AVEC LES COUCHES DE GRAPHITE NERVURE, DONT LES PERFORMANCES (QUELQUES A/CM 2 POUR UNE TENSION DE GRILLE DE 80 V, BONNE UNIFORMITE SUR L'ENSEMBLE DE LA SURFACE EMETTRICE) SONT PROCHES DE CELLES DES FED A MICROPOINTES.
Author :International Atomic Energy Agency Publisher :International Atomic Energy Agency ISBN 13 :9789201063205 Total Pages :72 pages Book Rating :4.0/5 (632 download)
Book Synopsis In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 by : International Atomic Energy Agency
Download or read book In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Book Synopsis Microdosimetry by : Lennart Lindborg
Download or read book Microdosimetry written by Lennart Lindborg and published by CRC Press. This book was released on 2017-07-06 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental microdosimetry deals with the measurement of charged particle energy deposition in tissue equivalent volumes, ranging in size from nanometres to micrometres. Microdosimetry is employed to improve our understanding of the relationship between radiation energy deposition, the resulting biological effects, and the appropriate quantities to be used in characterizing and quantifying radiation quality. Although many reviews and contributions to the field have been published over the past fifty years, this new book is the first to provide a single, up to date, and easily accessible account of experimental microdosimetry. This book is designed to be used in medical, radiation, and health physics courses and by Master’s and PhD students. In addition to serving as an introductory text to the field for graduate students, this book will also be of interest as a teaching and reference resource for graduate supervisors and established researchers. Drs. Lennart Lindborg and Anthony Waker have spent a life-time career in experimental microdosimetry research in academic, industrial and regulatory environments and have observed the development of the field from its early days as a recognized discipline; they bring to this book particular knowledge and experience in the design, construction, operation and use of tissue equivalent gas ionization counters and chambers.
Book Synopsis Applied Reactor Physics by : Alain Hébert
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:
Book Synopsis Transport Theory by : James J. Duderstadt
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
Book Synopsis American Military Technology by : Barton C. Hacker
Download or read book American Military Technology written by Barton C. Hacker and published by JHU Press. This book was released on 2007-11-29 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of American engineering and science has affected military technology, organization, and practice from the colonial era to the present day—even as military concerns have influenced, and often funded, domestic engineering programs and scientific development. American Military Technology traces the interplay of technology and science with the armed forces of the United States in terms of what Hacker and Vining view as epochs: 1840–1865, the introduction of modern small arms, steam power, and technology, science, and medicine; 1900–1914, the naval arms race, torpedoes and submarines, and the signal corps and the airplane; and 1965–1971, McNamara's Pentagon, technology in Vietnam, guided missiles, and smart bombs. The book is an excellent springboard for understanding the complex relationship of science, technology, and war in American history.
Book Synopsis Nuclear Computational Science by : Yousry Azmy
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.
Book Synopsis The Physics of Nuclear Reactors by : Serge Marguet
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.
Book Synopsis Technology and Military Doctrine by : I. B. Holley, Jr.
Download or read book Technology and Military Doctrine written by I. B. Holley, Jr. and published by Createspace Independent Pub. This book was released on 2012-07-31 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author's interest in Air Force doctrine was first aroused when he was a sergeant serving as an aerial gunnery instructor in early 1943. When the operational research people revealed that what we were teaching was faulty, he came to realize that the Air Force system for developing doctrine was flawed. The problem continued to interest him and later, after he was commissioned and serving on the faculty of the Industrial College of the Armed Forces, he wrote his book Ideas and Weapons using the experience of the air arm to expound the need for a more systematic procedure for developing doctrine. Because the doctrinal materials gathered on World War II were still highly classified, he reverted to World War I to put across his thesis without violating security. The author's real concern was to contribute to the soon to be established US Air Force in the search for a more effective means of formulating doctrine. The essays that follow reflect how his ideas developed over the 30-odd years of my Air Force career. Inevitably there are some overlaps and repetitions given the origin of these essays as articles and lectures spread over many years. The main themes are evident. He repeatedly made the case for the importance of doctrine and the need to perfect the technological advances in equipment. He was concerned to see that doctrine was continually perfected in peacetime and not just in wartime when the pressure of enemy performance provides a powerful incentive to do this. Another theme repeatedly stated was the need for officers suitably educated to see the importance of doctrine and realize that doctrine is literally “everybody's business” and not just the concern of a handful of individuals assigned to the formal task of compiling doctrinal manuals. These people are important, but they cannot perform effectively if officers throughout the service fail to write after-action reports summarizing their valuable experiences, not just in air operations but in all aspects of the air arm activities, procurement, personnel administration, logistics, and legislative liaison. One can easily make the case that improving the ability of the Air Force to cope with Congress is just as important as suggesting the best possible doctrine for aerial combat. One can't just assume that every newly promoted flag officer will instinctively understand the best way of testifying on Capitol Hill. Much of the doctrinal problem within the Air Force stems from the professional education of officers. Unless they are rigorously educated to undertake the objective analysis of recorded historical experience, all the most carefully edited doctrinal manuals will avail little. One of the author's insistent themes is the need to make doctrinal manuals not only more readable but more memorable. To this end several of the following essays are addressed to those who are assigned as doctrinal writers.
Book Synopsis High- LET Radiations in Clinical Radiotherapy by :
Download or read book High- LET Radiations in Clinical Radiotherapy written by and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technology in War by : Kenneth Macksey
Download or read book Technology in War written by Kenneth Macksey and published by Pocket Books. This book was released on 1986 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
