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Marode, Emmanuel
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), september 25-30, 1972
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), september 25-30, 1972
AbstractAbstract
[en] An apparatus reproducing the ''streak'' mode of a high-speed camera is proposed for the case of a slit AB whose variations in luminosity are repetitive. A photomultiplier, analysing the object AB point by point, and a still camera, photographing a slit fixed on the oscilloscope screen parallel to the sweep direction are placed on a mobile platform P. The movement of P assures a time-resolved analysis of AB. The resolution is of the order of 2.10-9 s, and can be improved
[fr]
Un dispositif realisant la fonction ''defilement continu'' d'une camera est propose dans le cas ou les variations de lumiere d'une fente AB se repetent identiquement. Un photomultiplicateur analysant point par point l'objet AB, et un appareil de prise de vue, photographiant une fente disposee parallelement au balayage, sur l'ecran de l'oscilloscope, sont sur un plateau mobile P. Le deplacement de P assure une decomposition temporelle de AB. La resolution temporelle est d'environ 2.10-9 s, et peut etre amelioreeOriginal Title
Technique de camera ultra-rapide a echantillonnage fonde sur l'utilisation d'un photomultiplicateur unique
Primary Subject
Source
Paget; Laviron, E. (comps.); p. 504-506; nd; Association Nationale de la Recherche Technique; Paris, France; 10. International congress of ultra-high-speed photography; Nice, France; 25 Sep 1972
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Stepanov, B.M.; Filenko, Yu.I.
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), September 25-30, 1972
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), September 25-30, 1972
AbstractAbstract
[en] The metods resulting from studies carried out using the commercial holographic device UIG-I are described. The device is intended for recording and investigating moving scenes and high-speed events by a holographic method. It consists of a quantum generator with a two-stage amplifier whose radiation energy in a single-mode operation is 0.7 J, and pulse width for passive Q-switching is 40nsec. Hologram portrait making was one of the experiments which illustrate the possible applications of the device. Hologram portraits such as group portraits and those that can be reconstructed in white light, were obtained on Micrat BP-2 and Agfa Gevaert plates
Source
Paget; Laviron, E. (comps.); p. 240-243; nd; Association Nationale de la Recherche Technique; Paris, France; 10. International congress of ultra-high-speed photography; Nice, France; 25 Sep 1972
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Book
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Harrison, R.B.; Wright, L.S.
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), September 25-30, 1972
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), September 25-30, 1972
AbstractAbstract
[en] Magneto-optic techniques coupled with high-speed photography are being used to study the destruction of superconductivity by a magnetic field. The phenomenon of superconductivity will be introduced with emphasis placed on the properties of type I and type II superconductors in a magnetic field. The Faraday effect and its application to the study of the penetration of magnetic fields into these superconductors will be described; the relative effectiveness of some types of paramagnetic glass will be demonstrated. A number of cinefilms will be shown to illustrate the versatility of the magneto-optic method for observing flux motion and patterns. The analysis of data obtained from a high speed film (10,200 fps) of a flux jump in Nb-Zr will be presented and discussed
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Paget; Laviron, E. (comps.); p. 276-281; nd; Association Nationale de la Recherche Technique; Paris, France; 10. International congress of ultra-high-speed photography; Nice, France; 25 Sep 1972
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Book
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Daragan, A.O.; Belov, B.G.
Proceedings of the 13th international congress on high speed photography and photonics1979
Proceedings of the 13th international congress on high speed photography and photonics1979
AbstractAbstract
[en] The description of the optical system and the construction of the high-speed PhC-4 photographic camera with mirror scanning of the continuously operating type is given. The optical system of the camera is based on the foursided rotating mirror, two optical inlets and two working sectors. The PhC-4 camera provides the framing rate up to 600 thousand frames per second. (author)
Primary Subject
Source
Hyodo, Shin-ichi (ed.) (Tokyo Univ. (Japan). Faculty of Engineering); Japan Society of Precision Engineering, Tokyo; p. 237-239; 1979; p. 237-239; Japan Society of Precision Engineering; Tokyo; 13. international congress on high speed photography and photonics; Tokyo, Japan; 20 - 25 Aug 1978
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Book
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Baluteau, J.-M.; Bouheret, Bernard; Tenaud, J.-P.
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), september 25-30, 1972
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), september 25-30, 1972
AbstractAbstract
[en] A prototype of a new whole-image, total-activity mechano-optical camera has been developed for the study of ultra-fast luminous phenomena. The camera can record 144 6 x 6.2mm images at the maximum rate of ten million images per second, with a dynamic resolution reaching 50 pairs of lines per millimetre. This was achieved by the use of an optical speed doubler included in an original design, together with a mirror rotating at 9,000 turns per second which benefits from recent technological progress in this field
[fr]
Le prototype d'une nouvelle camera mecano-optique, a images integrales et a activite totale, a ete realise en vue d'etudier des phenomenes lumineux ultra-rapides. La camera est capable d'enregistrer 144 images, de format 6x6,2mm a la cadence maximale de dix millions d'images par seconde et avec une resolution dynamique pouvant atteindre 50 paires de lignes par millimetre. L'emploi d'un doubleur optique de vitesse inclus dans un schema original, et d'un miroir tournant a 9000 tours par seconde, beneficiant de progres technologiques recents dans ce domaine, ont rendu possibles ces performancesOriginal Title
Camera mecano-optique a dix millions d'images par seconde
Primary Subject
Source
Paget; Laviron, E. (comps.); p. 64-67; nd; Association Nationale de la Recherche Technique; Paris, France; 10. International congress of ultra-high-speed photography; Nice, France; 25 Sep 1972
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Borel, C.C.; Clodius, W.B.; Cooke, B.J.; Smith, B.W.; Weber, P.G.
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Funding organisation: USDOE Office of Defense Programs (United States)1999
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Funding organisation: USDOE Office of Defense Programs (United States)1999
AbstractAbstract
[en] The design of remote sensing systems is driven by the need to provide cost-effective, substantive answers to questions posed by our customers. This is especially important for space-based systems, which tend to be expensive, and which generally cannot be changed after they are launched. We report here on the approach we employed in developing the desired attributes of a satellite mission, namely the Multispectral Thermal Imager. After an initial scoping study, we applied a procedure which we call: ''End-to-end modeling and analysis (EEM).'' We began with target attributes, translated to observable signatures and then propagated the signatures through the atmosphere to the sensor location. We modeled the sensor attributes to yield a simulated data stream, which was then analyzed to retrieve information about the original target. The retrieved signature was then compared to the original to obtain a figure of merit: hence the term ''end-to-end modeling and analysis.'' We base the EEM in physics to ensure high fidelity and to permit scaling. As the actual design of the payload evolves, and as real hardware is tested, we can update the EEM to facilitate trade studies, and to judge, for example, whether components that deviate from specifications are acceptable
Source
1 Feb 1999; 14 p; SPIE Conference on Infrared Imaging Systems: Design, Analysis, Modeling and Testing; Orlando, FL (United States); 8 Apr 1999; CONTRACT W-7405-ENG-36; ALSO AVAILABLE FROM OSTI AS DE00007403; NTIS; US GOVT. PRINTING OFFICE DEP
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Blake, Dick; Byrd, Don; Christensen, Wynn; Henson, Tammy; Krumel, Les; Rappoport, William; Shen, Gon-Yen
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States). Funding organisation: USDOE (United States)1999
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States). Funding organisation: USDOE (United States)1999
AbstractAbstract
[en] The Multispectral Thermal Imager Optical Assembly (OA) has been fabricated, assembled, successfully performance tested, and integrated into the flight payload structure with the flight Focal Plane Assembly (FPA) integrated and aligned to it. This represents a major milestone achieved towards completion of this earth observing E-O imaging sensor that is to be operated in low earth orbit. The OA consists of an off-axis three mirror anastigmatic (TMA) telescope with a 36 cm unobscured clear aperture, a wide-field-of-view (WFOV) of 1.82 along the direction of spacecraft motion and 1.38 across the direction of spacecraft motion. It also contains a comprehensive on-board radiometric calibration system. The OA is part of a multispectral pushbroom imaging sensor which employs a single mechanically cooled focal plane with 15 spectral bands covering a wavelength range from 0.45 to 10.7 m. The OA achieves near diffraction-limited performance from visible to the long-wave infrared (LWIR) wavelengths. The two major design drivers for the OA are 80% enpixeled energy in the visible bands and radiometric stability. Enpixeled energy in the visible bands also drove the alignment of the FPA detectors to the OA image plane to a requirement of less than 20 m over the entire visible detector field of view (FOV). Radiometric stability requirements mandated a cold Lyot stop for stray light rejection and thermal background reduction. The Lyot stop is part of the FPA assembly and acts as the aperture stop for the imaging system. The alignment of the Lyot stop to the OA drove the centering and to some extent the tilt alignment requirements of the FPA to the OA
Source
8 Jun 1999; 11 p; SPIE's International Symposium on Optical Science, Engineering, and Instrumentation; Denver, CO (United States); 18-23 Jul 1999; CONTRACT AC04-94AL85000; ALSO AVAILABLE FROM OSTI AS DE00007454; NTIS; US GOVT. PRINTING OFFICE DEP
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Lisitano, G.
ASDEX contributions to the 14th European conference on controlled fusion and plasma physics1987
ASDEX contributions to the 14th European conference on controlled fusion and plasma physics1987
AbstractAbstract
[en] A new, fast time resolved λ = 2 mm schlieren diagnostic provides experimental evidence of an m=1 particle density perturbation in the plasma interior. (orig.)
Primary Subject
Source
Max-Planck-Institut fuer Plasmaphysik, Garching (Germany, F.R.); 135 p; Jun 1987; p. 112-115; 14. European conference on controlled fusion and plasma physics; Madrid (Spain); 22-26 Jun 1987
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Report
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Kahn, E.; Nourrissat, Yves; Viguier, Philippe
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), September 25-30, 1972
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), September 25-30, 1972
AbstractAbstract
[en] A high-speed cineradiography installation provides dimensional informations recorded either on a film, or on a magnetic tape. In the event of the film, the imperfection of our visual sense leads us to look for a method of measurement which allows us to extract the information from a noisy image; the association of an optical flying spot scanner with a computer is adapted to this use and allows us, for instance, to determine the inside and outside diameters of a sphere during its implosion. On the other hand, the radiographic recording on magnetic tape is processed, after numerisation by the computer, in the same way as the numeric tape generated after the optical scanner. We compare the results achieved by the two recording methods
[fr]
Une installation de cineradiographie ultra-rapide fournit des informations dimensionnelles stockees, soit sur un film, soit sur un ruban magnetique. Dans le cas du film, l'imperfection de notre sens visuel conduit a rechercher une methode de mesure capable d'extraire l'information d'une image bruitee; l'association d'un capteur optique flying spot et d'un ordinateur convient a cet usage et permet, par exemple, de determiner les diametres interieur et exterieur d'une sphere en cours d'implosion. D'autre part, l'enregistrement radiographique sur ruban magnetique est traite, apres numerisation par l'ordinateur, de la meme maniere que la bande magnetique generee en aval du capteur optique. On compare les resultats obtenus par les deux methodes d'enregistrementOriginal Title
Acquisition et traitement de cineradiographies ultra-rapides
Source
Paget; Laviron, E. (comps.); p. 198-202; nd; Association Nationale de la Recherche Technique; Paris, France; 10. International congress of ultra-high-speed photography; Nice, France; 25 Sep 1972
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Book
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Kiselevskiy, L.I.; Minko, L.Ja.
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), september 25-30, 1972
Proceedings of the 10. international congress of ultra-high-speed photography. Nice (France), september 25-30, 1972
AbstractAbstract
[en] The extensive information of pulsed plasma dynamic processes related to formation and interaction of plasma streams with a surrounding medium and obstacles is obtained with the help of high-speed photo and spectrography. The wave structure of pulsed supersonic under-expanded erosive plasma jets is studied. Some physical processes which are due to interactions of laser radiation with the laser-produced erosive plasma and of this plasma with a surrounding medium are investigated. The wide possibilities of frame photography of spectra quantitative spectroscopic investigations of fast-proceeding plasma processes are shown on the basis of joint use of high-speed photographic apparatus (type SFR) and standard spectrographs. The radial distribution of charged-particle concentrations at separate moments of time is obtained from the broadening of spectral lines at the brightness of the continuous spectrum of an erosive plasma jet from a pulsed accelerator
Primary Subject
Source
Paget; Laviron, E. (comps.); p. 521-524; nd; Association Nationale de la Recherche Technique; Paris, France; 10. International congress of ultra-high-speed photography; Nice, France; 25 Sep 1972
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