conception est un apport consid?rable pour la mission. ...... accidentelle laisse appara?tre la d?gradation que peut causer le rayonnement EUV solaire. Des ...
NASA Website
Les trois lois de Kepler sur le mouvement plan?taire" Revue g?n?rale ? l' intention des ... La constante de Planck : Rayonnement des objets chauds ...
Preliminary results of experiments studying X-ray emission around critical density, to better understand laser wave parametric instabilities and resonant absorption mechanism, processes at the origin of locally intense energy buildups, are presented. Duri...
National Technical Information Service (NTIS)
People are ever submitted to natural ionizing radiations. But nuclear power plant workers have this natural exposure and one complementary irradiation, in case of nuclear installation serious accident. In normal running, people, people, particularly those...
For several years, new analysis and observation techniques have been developed, which have considerably improved material research. Almost all these techniques are based on the interaction of a beam of 'primary particles' (electrons, photons, ions, partic...
Thin nuclear detectors using epitaxial silicon technology are described. The following manufacturing procedures are presented: the planar technology, which consists in the passivation of the surface for the background noise minimization and in ion implant...
The development and optimization of a microwave technique, concerning the high frequency (electronic cyclotron frequency) plasma heating is presented. The experiments are effectuated on the Fontenay-aux-Roses TFR tokamak, with 660 kw whole power, during 1...
Trois m�thodes ont �t� utilis�es pour caract�riser la rugosit� de quelques �chantillons. Deux de ces m�thodes sont bas�es sur la mesure du rayonnement diffus� (visible et X). La troisi�me utilise la microscopie en champ proche (MCP). Dans un premier temps, une comparaison des deux premi�res techniques a �t� men�e en utilisant une m�me th�orie ...
NASA Astrophysics Data System (ADS)
In radiation therapy, there is low LET rays: photons of 60Co, photons and electrons to 4 at 25 MV created in a linac, photons 137Cs, of 192Ir and of 125I. To know the most exactly possible the dose to the tissu by this rays, software and measurements are used. With the development of the power and the capacity of computers, the application of Monte Carlo codes expand to the radiation therapy which ...
Sentivity of murin CFU-C progenitor cells was detennined in vitro for mixed radiations fields composed of variable ?-rays and neutron components. Five ? ratios D?/D_{total} were obtained (from 0.95 to 0.09). CFU-C radiosensitivity were increased with the lower ? values (excess of neutrons). The Biological Effectiveness D0 value varied from 3.3� 0.22 to 0.85� 0.04 Gy with the decrease of ?. The ...
... Title : TRANSFERT DU RAYONNEMENT DANS UN MILIEU ABSORBANT ET DIFFUSANT, IN: AGARD-CP-183, PAPER 16. ...
DTIC Science & Technology
Les sources de rayonnement Extr�me Ultraviolet (EUV) par d�charge capillaire connaissent un int�r�t de plus en plus consid�rable pour de nombreuses applications scientifiques et technologiques. Au GREMI, nous �tudions le fonctionnement des sources de rayonnement EUV �mettant � 13.5 nm pouvant r�pondre � certaines applications li�es ...
Le circuit d'irradiation est dote d'une chambre de melange et d'une pompe additionnelle, la chambre de melange etant mise en communication a sa partie superieure avec les sorties du generateur d'activite et de l'irradiateur et a sa partie inferieure par des pompes avec les entrees du generateur d'activite et de l'irradiateur; ...
Energy Citations Database
Radio-induced degradation of DNA involves radical processes. A series of lesions among the major bases degradation products has been measured in isolated DNA exposed to gamma radiation in aerated aqueous solution. Degradation can be accounted for by the formation of hydroxyl radicals upon radiolysis of water (indirect effect). The four bases are degraded in high yield. Direct effect has been ...
Les fibres optiques pr�sentent de nombreux avantages incitant � les int�grer dans des applications devant r�sister aux environnements radiatifs associ�s aux domaines civil, spatial ou militaire. Cependant, leur exposition � un rayonnement entra�ne la cr�ation de d�fauts ponctuels dans la silice amorphe pure ou dop�e ...
L�insensibilit� cong�nitale � la douleur est une affection rare qui peut �tre responsable de l�apparition accidentelle de l�sions externes et internes chez l�enfant. Dans un contexte de pr�somptions de s�vices � des enfants, le fait de conna�tre l�existence de cette affection peut compliquer l�interpr�tation m�dico-l�gale de nos ...
PubMed Central
... 2006.J.-M. Bertho. (2006) Le syndrome h�matopo��tique induit par une irradiation accidentelle : �valuation et traitements possibles. ... ...
NBII National Biological Information Infrastructure
The radioisotope or ionizing radiation medical or industrial use may generate accidents where human beings are exposed to very high doses. The accident frequency is increasing quickly because of the industrial source use development. The accidents don't c...
Comme nous allons le voir, ce changement progressif du rapport .... qu'avec de petites quantit?s , de crainte d'une r?action en cha?ne accidentelle. ...
L'�laboration de nouveaux rev�tements interf�rentiels multicouches est motiv�e par la demande de l'astrophysique solaire et par le d�veloppement de nouvelles sources de rayonnement EUV (source � g�n�ration d'harmoniques d'ordre �lev�, laser X, rayonnement synchrotron). Nous avons �tudi� et d�velopp� diff�rents syst�mes ...
Ce travail contribue dans la mod�lisation du ph�nom�ne du soudage de l'acier inoxydable Aust�nitique 304L, afin d'�tudier le comportement thermique d'un joint de soudure, obtenu par le proc�d� de soudage � l'arc �lectrique TIG (Tungsten-Inert-Gas). Le mod�le simulant la source d'�nergie de soudage, utilise une distribution surfacique Gaussienne du flux de chaleur provenant de ...
Nous avons vu les possibilites d'analyse par particules chargees des aerosols recueillis sur des filtres de type MILLIPORE. La meme technique a ete utilisee pour des filtres ayant servi a la filtration de l'eau du fleuve Saint-laurent. Deux techniques ont ete utilisees: (1) FAST (Forward Alpha Scattering Technique): pour analyser l'hydrogene, le carbone, l'oxygene et puis l'azote. Des alpha de 12 ...
The main risk in nuclear industry is the internal contamination after inhalation of high LET alpha emitters radionuclides. Main targets of pulmonary carcinogenesis are epithelial respiratory tract cells. An in vitro study was performed in order to determine if a difference in the radiosensitivity occured in epithelial cells from the trachea of two rat strains: Sprague Dawley and Wistar ...
Le premier laser � fibre dop� aux ions de terres rares fonctionna au tout d�but des ann�es 60. Il fournissait quelques milliwatts autour de 1 ?m. Les d�cades suivantes virent tr�s peu d'am�liorations tant du c�t� des laboratoires que du point de vue industriel. La derni�re d�cennie (1995/2005) vit se concr�tiser la seconde r�volution des lasers � ...
Language: French ...
Our methodology Gistel gives, for each pixel of each numerical image of the visible channel from meteosat, the global irradiance on the ground. It is described here. It has been applied in Tunisia to archived B2 images and in France to Wefax images regularly received at Carpentras. Results are compared with measured daily and hourly irradiations from several stations. The ability to reproduce the ...
Aplasia is one of the main syndrome, appearing after one global accidental irradiation by one ionizing radiation source. The hematopoietic syndrome is characterized by a peripheric blood cell number fall; the cell marrow is reduced too. (Atomindex citatio...
Jul 3, 2009 ... Didier Barret (CESR Toulouse). The Equation Of State (EOS) of neutron stars. Didier Barret. Centre d'Etude Spatiale des Rayonnements. Didier ...
Centre dEtude Spatiale des Rayonnements, CNRS, Toulouse, France. S. A. Fuselier ...... However, as the magnetosheath flow is super-alfvenic, ...
Centre d'Etudes Spatiales des Rayonnements, Toulouse, France. S. W. Bougher and ... (5435, 5729, 6026, 6027, 6028). 1. .... Tn being the neutral temperature. ...
... ou résistives, qui convertiront l'énergie électromagnétique en chaleur. ... matériaux conducteurs offrent un mécanisme d'absorption du rayonnement ...
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for January 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes, Belgium are tabulated for February 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Sourbes (Belgium) are tabulated for October 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for November 1974.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabultated for November 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for November 1972.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for May 1974.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes, (Belgium) are tabulated for May 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for March 1975.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for March 1974.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for March 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for June 1974.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for June 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for January 1975.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for January 1974.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for February 1975.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for December 1974.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for December 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for December 1972.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for August 1974.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes, Belgium, are tabulated for July 1973.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes, Belgium are tabulated for September 1971.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes, Belgium are tabulated for October 1971. (Author)
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes, Belgium are tabulated for October 1972.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for November 1971.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for March 1972.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes, Belgium are tabulated for June 1972.
Results of ionospheric and cosmic ray (neutron components) observations at Dourbes (Belgium) for January 1972 are presented.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for February 1972.
Results of ionospheric and cosmic ray (neutron component) observations at Dourbes (Belgium) are tabulated for September 1971. (Author)
... misc Fig. 1. Spectre des rayonnemnents gamima en coincidences en ... MoV Fig. I reprdsente le spectre, dos rayonnements - 6.06 ...
CONVECTIVE AND RADIATIVE HEAT TRANSFER DURING SUPER-. ORBITAL ENTRY. J PREVIOUSLY ...... Journges d' Electronique, Colloque sur 1' Action des Rayonnements ...
We investigate a mixed amphiphilic system formed from a brine swollen surfactant lamellar phase in between the bilayers of which is incorporated a neutral water-soluble non-adsorbing polymer: polyvynilpyrilidone (PVP) with a very large molecular weight. This system allows an experimental realization of the various regimes of polymer confinement within infinite slits. The presence of polymer will ...
Cette these presente les resultats d'une etude sur le mouvement de l'air et les transferts thermiques et massiques dans les arenas en regime transitoire et en 3D. Pour la partie aeraulique, il a ete question de developper un modele base sur la methode zonale qui permet de calculer les debits de l'air (dus a la ventilation et aux gradients de temperature) et de l'humidite entre ...
Jul 18, 2008 ... L'Anse aux Meadows is a site on the northernmost tip of the island of Newfoundland, located in the Province of Newfoundland and Labrador, ...
... Accession Number : ADM001802. Title : Introduction to Flight Test Engineering (Introduction aux techniques des essais en vol) (CD-ROM). ...
... Accession Number : ADA444990. Title : Introduction to Flight Test Engineering (Introduction aux techniques des essais en vol). ...
Jul 18, 2008 ... PIA11083: L'Anse Aux Meadows, Newfoundland ... L'Anse aux Meadows is a site on the northernmost tip of the island of Newfoundland, ...
