Academic literature on the topic 'Occulter'

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Journal articles on the topic "Occulter"

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Shestov, S. V., and A. N. Zhukov. "Influence of misalignments on the performance of externally occulted solar coronagraphs." Astronomy & Astrophysics 612 (April 2018): A82. http://dx.doi.org/10.1051/0004-6361/201732386.

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Context. The ASPIICS instrument is a novel externally occulted coronagraph that will be launched on board the PROBA-3 mission of the European Space Agency. The external occulter will be placed on one satellite ~150 m ahead of the second satellite that will carry an optical instrument. During 6 h out of 19.38 h of orbit, the satellites will fly in a precise (accuracy around a few millimeters) formation, constituting a giant externally occulted coronagraph. The large distance between the external occulter and the primary objective will allow observations of the white-light solar corona starting from extremely low heights ~ 1.1R⊙. Aims. We intend to analyze influence of shifts of the satellites and misalignments of optical elements on the ASPIICS performance in terms of diffracted light. Based on the quantitative influence of misalignments on diffracted light, we provide a recipe for choosing the size of the internal occulter (IO) to achieve a trade-off between the minimal height of observations and sustainability to possible misalignments. Methods. We considered different types of misalignments and analyzed their influence from optical and computational points of view. We implemented a numerical model of the diffracted light and its propagation through the optical system and computed intensities of diffracted light throughout the instrument. Our numerical approach is based on a model from the literature that considered the axisymmetrical case. Here we extend the model to include nonsymmetrical cases and possible misalignments. Results. The numerical computations fully confirm the main properties of the diffracted light that we obtained from semi-analytical consideration. We obtain that relative influences of various misalignments are significantly different. We show that the internal occulter with RIO = 1.694 mm = 1.1R⊙ is large enough to compensate possible misalignments expected to occur in PROBA-3/ASPIICS. Besides that we show that apodizing the edge of the internal occulter leads to additional suppression of the diffracted light. Conclusions. We conclude that the most important misalignment is the tilt of the telescope with respect to the line connecting the center of the external occulter and the entrance aperture. Special care should be taken to co-align the external occulter and the coronagraph, which means co-aligning the diffraction fringe from the external occulter and the internal occulter. We suggest that the best orientation strategy is to point the coronagraph to the center of the external occulter.
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Aime, C. "Fresnel diffraction of multiple disks on axis." Astronomy & Astrophysics 637 (May 2020): A16. http://dx.doi.org/10.1051/0004-6361/201937208.

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Aims. We seek to study the Fresnel diffraction of external occulters that differ from a single mask in a plane. Such occulters have been used in previous space missions and are planned for the future ESA Proba 3 ASPIICS coronagraph. Methods. We studied the shading efficiency of double on-axis disks and generalized results to a 3D occulter. We used standard Fourier optics in an analytical approach. We show that the Fresnel diffraction of two and three disks on axis can be expressed using a Babinet-like approach. Results are obtained in the form of convolution integrals that can be written as Bessel-Hankel integrals; these are difficult to compute numerically for large Fresnel numbers found in solar coronagraphy. Results. We show that the shading efficiency of two disks is well characterized by the intensity of the residual Arago spot, a quantity that is easier to compute and therefore allows an interesting parametric study. Very simple conditions are derived for optimal sizes and positions of two disks to produce the darkest structure around the Arago spot. These conditions are inspired from empirical experiments performed in the sixties. A differential equation is established to give the optimal envelope for a multiple-disk occulter. The solution takes the form of a simple law, the approximation of which is a conical occulter, a shape already used in the SOHO Mission. Conclusions. In addition to quantifying expected results, the present study highlights unfortunate configurations of disks and spurious diffractions that may increase the stray light. Particular attention is paid to the possible issues of the future occulter spacecraft of ASPIICS.
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Shestov, S. V., A. N. Zhukov, and D. B. Seaton. "Modeling and removal of optical ghosts in the PROBA-3/ASPIICS externally occulted solar coronagraph." Astronomy & Astrophysics 622 (February 2019): A101. http://dx.doi.org/10.1051/0004-6361/201834584.

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Context. ASPIICS is a novel externally occulted solar coronagraph, which will be launched onboard the PROBA-3 mission of the European Space Agency. The external occulter will be placed on the first satellite ∼150 m ahead of the second satellite that will carry an optical instrument. For 6 h per orbit, the satellites will fly in a precise formation, constituting a giant externally occulted coronagraph. The large distance between the external occulter and the primary objective will allow observations of the white-light solar corona starting from extremely low heights ∼1.1 R⊙. Aims. We aim to analyze the possible influence of optical ghost images formed inside the telescope and to develop an algorithm for their removal. Methods. We implement the optical layout of ASPIICS in Zemax and study the ghost behavior in sequential and nonsequential regimes. We identify sources of the ghost contributions and analyze their geometrical behavior. Finally we develop a mathematical model and software to calculate ghost images for any given input image. Results. We show that ghost light can be important in the outer part of the field of view, where the coronal signal is weak, since the energy of bright inner corona is redistributed to the outer corona. However, the model allows for the ghost contribution to be removed. Due to the large distance between the external occulter and the primary objective, the primary objective does not produce a significant ghost. The use of the Lyot spot in ASPIICS is not necessary.
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Rougeot, R., R. Flamary, D. Mary, and C. Aime. "Influence of surface roughness on diffraction in the externally occulted Lyot solar coronagraph." Astronomy & Astrophysics 626 (June 2019): A1. http://dx.doi.org/10.1051/0004-6361/201834634.

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Context. The solar coronagraph ASPIICS will fly on the future ESA formation flying mission Proba-3. The instrument combines an external occulter of diameter 1.42 m and a Lyot solar coronagraph of 5 cm diameter, located downstream at a distance of 144 m. Aims. The theoretical performance of the externally occulted Lyot coronagraph has been computed by assuming perfect optics. In this paper, we improve related modelling by introducing roughness scattering effects from the telescope. We have computed the diffraction at the detector, that we compare to the ideal case without perturbation to estimate the performance degradation. We have also investigated the influence of sizing the internal occulter and the Lyot stop, and we performed a sensitivity analysis on the roughness. Methods. We have built on a recently published numerical model of diffraction propagation. The micro-structures of the telescope are built by filtering a white noise with a power spectral density following an isotropic ABC function, suggested by Harvey scatter theory. The parameters were tuned to fit experimental data measured on ASPIICS lenses. The computed wave front error was included in the Fresnel wave propagation of the coronagraph. A circular integration over the solar disk was performed to reconstruct the complete diffraction intensity. Results. The level of micro-roughness is 1.92 nm root-mean-square. Compared to the ideal case, in the plane of the internal occulter, the diffraction peak intensity is reduced by ≃0.001%. However, the intensity outside the peak increases by 12% on average, up to 20% at 3 R⊙, where the mask does not filter out the diffraction. At detector level, the diffraction peak remains ≃10−6 at 1.1 R⊙, similar to the ideal case, but the diffraction tail at large solar radius is much higher, up to one order of magnitude. Sizing the internal occulter and the Lyot stop does not improve the rejection, as opposed to the ideal case. Conclusions. Besides these results, this paper provides a methodology to implement roughness scattering in the wave propagation model for the solar coronagraph.
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Shestov, S. V., A. N. Zhukov, B. Inhester, L. Dolla, and M. Mierla. "Expected performances of the PROBA-3/ASPIICS solar coronagraph: Simulated data." Astronomy & Astrophysics 652 (July 30, 2021): A4. http://dx.doi.org/10.1051/0004-6361/202140467.

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Context. The Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun (ASPIICS) is a novel externally occulted solar coronagraph that will be launched on board the Project for On-Board Autonomy (PROBA-3) mission in 2023. The external occulter will be placed on the first satellite ∼150 m ahead of the second satellite, which will carry an optical instrument. During 6 hours per orbit, the satellites will fly in a precise formation and will constitute a giant externally occulted coronagraph. The large distance between the external occulter and the primary objective will allow observations of the white-light solar corona starting from extremely low heights of ∼1.1 R⊙. Aims. Developing and testing of algorithms for the scientific image processing requires understanding of all the optics-related and detector-related effects of the coronagraph, development of appropriate physical and numerical models, and preparation of simulated images that include all these effects. At the same time, an analysis of the simulated data gives valuable information about the performance of the instrument, the suitable observation regime, and the amount of telemetry. Methods. We used available physical models of the instrument and implemented them as a software to generate simulated data. We analyzed intermediate and complete simulated images to obtain a better understanding of the performance of ASPIICS, in particular, to predict its photometric sensitivity, effect of noise, suitable exposure times, etc. Results. The proposed models and algorithms are used not only to create the simulated data, but also to form the basis for the scientific processing algorithms to be applied during on-ground ASPIICS data processing. We discuss the possible effect of noise and the uncertainty of the calibration factors on the accuracy of final data, and propose suitable exposure times.
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Verroi, Enrico, Fabio Frassetto, and Giampiero Naletto. "Analysis of diffraction from the occulter edges of a giant externally occulted solar coronagraph." Journal of the Optical Society of America A 25, no. 1 (December 19, 2007): 182. http://dx.doi.org/10.1364/josaa.25.000182.

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Vanderbei, Robert J., Eric Cady, and N. Jeremy Kasdin. "Optimal Occulter Design for Finding Extrasolar Planets." Astrophysical Journal 665, no. 1 (August 10, 2007): 794–98. http://dx.doi.org/10.1086/519452.

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Arenberg, Jonathan W., Amy S. Lo, Tiffany M. Glassman, and Webster Cash. "Optical performance of the New Worlds Occulter." Comptes Rendus Physique 8, no. 3-4 (April 2007): 438–47. http://dx.doi.org/10.1016/j.crhy.2007.03.005.

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SUN Ming-zhe, 孙明哲, 张红鑫 ZHANG Hong-xin, 卢振武 LU Zhen-wu, and 卜和阳 BU He-yang. "Design and diffraction intensity test of toothed occulter." Optics and Precision Engineering 23, no. 1 (2015): 70–77. http://dx.doi.org/10.3788/ope.20152301.0070.

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Greene, Michael E. "Active modal damping of the pinhole/occulter facility." Advances in Engineering Software (1978) 7, no. 2 (April 1985): 88–90. http://dx.doi.org/10.1016/0141-1195(85)90004-x.

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Dissertations / Theses on the topic "Occulter"

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Sirbu, Dan. "Occulter-based high-contrast exoplanet imaging| Design, scaling, and performance verification." Thesis, Princeton University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3665346.

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Over the last two decades, a large number of exoplanets have been confirmed with the rate of discovery increasing in recent years primarily as new instruments with improved sensitivities have become available. Direct imaging of an Earth-like planet is now an important goal of the science community. This is a challenging problem for two primary reasons. First, the intensity ratio between the bright star and its dim Earth-like companion is expected to be approximately ten orders of magnitude and, second, the angular separation to the star is very small.

An external occulter is a specially-shaped spacecraft that is flown in formation with a telescope in order to block most of the starlight before it reaches the entrance pupil thereby allowing planetary light outside of the occulter's inner working angle to become visible. Designing a shape for the occulter spacecraft to enable suppression over a wavelength band of interest requires modeling through scalar diffraction theory. Typical designs feature occulters that are tens of meters across at a separation of tens of thousands of kilometers from the space telescope.

In this dissertation, we focus on occulter design and scaling to enable experimental optical verification of occulters in the laboratory. We provide experimental results that establish a 10-5 suppression level in the pupil and 10-10 contrast in the focal plane, which are both approximately two orders of magnitude below the ideal performance of the testbed. We use numerical simulation to study the sensitivity of the occulter design in the laboratory and determine that performance is feature-size limited. We provide the design of a longer and flight-like occulter experiment, and study its sensitivity to determine the expected performance.

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Venet, Melanie. "Coronographes spatiaux : Solar Orbiter / Metis, Smese / Lyot, Proba-3 / Aspiics." Thesis, Aix-Marseille 1, 2011. http://www.theses.fr/2011AIX10011.

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La couronne solaire est la partie de l'atmosphère du Soleil qui s'étend de la photosphère (surface solaire d'où sont émis les photons) jusque dans le milieu interplanétaire. Sa compréhension relève d'un enjeu majeur car elle est à l'origine de phénomènes qui peuvent perturber les télécommunications, les êtres vivants et même le climat. L'instrument privilégié pour l'observer est le coronographe, système optique occultant le disque solaire au profit de la couronne, un million de fois moins intense. Ma thèse porte sur son étude, en particulier à travers les projets spatiaux :- SOLAR ORBITER, qui doit s'approcher du Soleil à 0.2 unité astronomique (distance Terre-Soleil), permettant ainsi une très haute résolution spatiale ;- SMESE, en coopération avec la Chine, qui étudiera la couronne dans l'infrarouge lointain ;- et ASPIICS, dont l'occulteur externe sera placé à 150 m de l'instrument imageur, permettant d'observer la couronne dans des conditions proches d'une éclipse solaire naturelle.Le premier aspect abordé est la réjection de la lumière parasite instrumentale, dont l'optimisation est une des problématiques majeures en coronographie. Le second concerne les modes d'observation par imagerie en lumière blanche, imagerie monochromatique, et interférométrie, en particulier le Fabry Perot. Le développement et l'amélioration de ces techniques permettra des avancées considérables en terme de résolution et l'accès à la couronne toujours plus proche de la surface du Soleil, lieu encore mal connu où l'activité solaire prend naissance
The solar corona is the part of the Sun's atmosphere that extends from the photosphere (solar surface where the photons are emitted) into the interplanetary medium. Its understanding is a major issue because it is the source of phenomena that can disrupt telecommunications, living beings and even climate. The most appropriate tool to observe it is the coronagraph, an optical system obscuring the solar disk in favor of the corona, a million times fainter. My thesis deals with its review, particularly through the spaceprojects :- Solar Orbiter, which will approach the Sun at 0.2 astronomical unit (distance between Earth and Sun), allowing a very high spatial resolution ;- SMESE, in cooperation with China, which should study the corona in the Lymanalpha (and far infrared) ;- and ASPIICS, which will observe the corona in conditions close to a natural solar eclipse, with its occulting disk located at 150 m from the imaging instrument.The first point tackled is the rejection of instrumental stray light, whose optimization is one of the major problems in coronagraphy. The second concerns the methods of observation and imaging in white light, monochromatic imaging, and interferometry, in particular the Fabry Perot. The development and improvement of these techniques will allow considerable progress in terms of resolution and access to the corona ever closer to the Sun's surface, the location yet little known where the solar activity originates
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Swartz, Laura A. "Occulture : W.B. Yeats' prose fiction and the late ninteenth- and early twentieth-century occult revival." CardinalScholar 1.0, 2010. http://liblink.bsu.edu/uhtbin/catkey/1560843.

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In addition to being a respected poet, dramatist, essayist, and statesman, William Butler Yeats was a dedicated student of the occult and practicing magician for most of his adult life. In spite of his dedication, Yeats’ commitment to occultism has often been ridiculed as “bughouse” (as Ezra Pound put it), shunted to the margins of academic discourse, or ignored altogether. Yeats’ occult-focused prose fiction—the occult trilogy of stories “Rosa Alchemica,” “The Tables of the Law,” and “The Adoration of the Magi” and the unfinished novel The Speckled Bird—has often received similarly dismissive treatment. Some critics have accused Yeats of being an escapist or of being out of touch with the intellectual currents of his time. However, Yeats was in touch with the intellectual currents of his time, one of which was the late nineteenth- and early twentieth-century occult revival. This was not a fringe movement; it was one which intersected with some of the most pressing social and cultural issues of the time. These include the dissatisfaction with mainstream religions, the renegotiation of women’s roles, the backlash against science, and nationalism and the colonial enterprise. This intersection is what I have termed occulture. The central purpose of this dissertation is twofold. First, I demonstrate the cultural and academic relevance of the occult revival by analyzing its connections to these critical issues. Second, I situate the occult trilogy and The Speckled Bird as artifacts of the occult revival and its associated facets. Through its main characters, the occult trilogy illustrates a fragmented self associated with literary modernism and with scientific challenges to individual identity from Darwin, Freud, and others. In addition, these three stories exemplify a sacralization of the domestic sphere which conflicts with the officially-sanctioned sacred spaces of mainstream religions. The Speckled Bird also reconfigures the sacred space as Michael Hearne contemplates a magical order with Irish nationalist implications. In examining these works within this historical context, I present them as texts which engage with the social and cultural landscape of the time.
Occulture : occultism and the occult revival -- The occult trilogy : self and space in an occult context -- The speckled bird : sacralizing Ireland.
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Deboskre, Sylvie. "Le féminin occulte dans l'oeuvre de Maupassant." Villeneuve d'Ascq : Presses universitaires du Septentrion, 2000. http://catalog.hathitrust.org/api/volumes/oclc/45385012.html.

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DEBOSKZE, SYLVIE. "Le feminin occulte dans l'oeuvre de maupassant." Lille 3, 1997. http://www.theses.fr/1997LIL30016.

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Notre these est consacree a la question du feminin dans l'oeuvre de maupassant, le terme " feminin " signifiant tout ce qui renvoie a la femme et a la feminite ( reelle ou symbo♭ lique ) dans la creation de cet ecrivain. La presence du femi♭ nin est occulte, discrete mais cependant influente, indefinis♭ sable ou dissimulee par de multiples procedes d'ecriture. L'objet de notre these est en substance l'analyse du dialogue qui se noue dans toute l'oeuvre entre ce feminin si absent et si present et l'homme ( l'auteur et ses heros ).
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Key, Charles Stevan. "Among strangers : protocols of an occulted social type /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9804530.

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Valensky, Chantal. "Le soldat occulté : les Malgaches de l'armée française, 1884-1920 /." Paris : Ed. l'Harmattan, 1995. http://catalogue.bnf.fr/ark:/12148/cb35803245p.

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Antoniades, Irene. "Modern writing and the occult." Thesis, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264702.

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Harvey, M. J. "Pollution transfer by occult deposition." Thesis, University of Nottingham, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378479.

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Chessa, Luciano. "Luigi Russolo and the occult /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.

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Books on the topic "Occulter"

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Nuits occultes. Saint-Alphonse-de-Granby, QC: Éditions de La Paix, 2000.

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Rodero, Cristina García. Espagne occulte. Paris: Contrejour, 1990.

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Perricone, Rosa Anna. Le violenze occulte. Roma: GEI, 1994.

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Eddings, David. La cité occulte. Paris: Pocket, 2000.

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Lesage, Jean-Michel. La manipulation occulte. Paris: ed. Atlantic, 1989.

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Pappalardo, Armando. Dizionario di scienze occulte. Milano: Cisalpino-Goliardica, 1986.

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Bernard, Jean Louis. La science occulte égyptienne. Paris: Editions Henri Veyrier, 1987.

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Occultus politicus. Paris: First, 2009.

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Valode, Philippe. Occultus politicus. Paris: First, 2009.

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Capuana, Luigi. Mondo occulto. Catania: Edizioni del Prisma, 1995.

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Book chapters on the topic "Occulter"

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Beckurts, K. T. E., W. Schröder, P. Landwehr, T. Göser, and A. H. Hölscher. "Chirurgisches Management rezidivierender occulter Dünndarmblutungen." In Bilanz zur Jahrtausendwende, 1308. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60248-1_331.

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Göknar, Erdağ. "Occulted Texts: Pamuk’s Untranslated Novels." In Global Perspectives on Orhan Pamuk, 177–98. New York: Palgrave Macmillan US, 2012. http://dx.doi.org/10.1057/9781137039545_12.

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van Balen, J. A. M., A. A. Demeulemeester, M. Frölich, K. Mohrmann, L. M. Harms, W. C. H. van Helden, L. J. Mostert, and J. H. M. Souverijn. "Occult bloed." In Memoboek, 167. Houten: Bohn Stafleu van Loghum, 2012. http://dx.doi.org/10.1007/978-90-313-9129-5_96.

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Bloom, Clive. "The Occult." In Reading Poe Reading Freud, 18–43. London: Palgrave Macmillan UK, 1988. http://dx.doi.org/10.1007/978-1-349-19300-4_3.

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Bloom, Clive. "Occult Speculations." In Reading Poe Reading Freud, 44–61. London: Palgrave Macmillan UK, 1988. http://dx.doi.org/10.1007/978-1-349-19300-4_4.

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Welburn, Andrew J. "Occult Qualities." In Power and Self-Consciousness in the Poetry of Shelley, 67–99. London: Palgrave Macmillan UK, 1986. http://dx.doi.org/10.1007/978-1-349-18278-7_4.

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Heppner, John B., John B. Heppner, Minos E. Tzanakakis, Minos E. Tzanakakis, Minos E. Tzanakakis, Pauline O. Lawrence, John L. Capinera, et al. "Occult Virus." In Encyclopedia of Entomology, 2662. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_1813.

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Vančik, Hrvoj. "Occult Enlightenment." In Integrated Science, 47–54. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69224-7_5.

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Vergnon, J. M., and M. Taulelle. "Carcinomes radiologiquement occultes et lésions précancéreuses." In Oncologie thoracique, 147–62. Paris: Springer Paris, 2011. http://dx.doi.org/10.1007/978-2-287-99041-0_11.

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Schink, Alan. "Schattenzonen: Occulture und Conspirituality." In Verschwörungstheorie und Konspiration, 395–459. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31689-1_7.

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Conference papers on the topic "Occulter"

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Cady, Eric, Kunjithapatham Balasubramanian, Michael Carr, Matthew Dickie, Pierre Echternach, Jeremy Kasdin, Stuart Shaklan, Dan Sirbu, and Victor White. "Broadband suppression and occulter position sensing at the Princeton occulter testbed." In SPIE Astronomical Telescopes + Instrumentation, edited by Jacobus M. Oschmann, Jr., Mark C. Clampin, and Howard A. MacEwen. SPIE, 2010. http://dx.doi.org/10.1117/12.857133.

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Kochte, M., A. B. Schultz, I. J. E. Jordan, D. Fraquelli, H. M. Hart, J. Leitner, and R. D. Burns. "External Occulter Operations Requirements." In Space OPS 2004 Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-611-408.

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Hudson, Hugh S., and John M. Davis. "The Pinhole/Occulter Facility." In 33rd Annual Techincal Symposium, edited by Charles J. Hailey and Oswald H. W. Siegmund. SPIE, 1989. http://dx.doi.org/10.1117/12.962590.

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Kasdin, N. Jeremy, Eric J. Cady, Philip J. Dumont, P. Douglas Lisman, Stuart B. Shaklan, Remi Soummer, David N. Spergel, and Robert J. Vanderbei. "Occulter design for THEIA." In SPIE Optical Engineering + Applications, edited by Stuart B. Shaklan. SPIE, 2009. http://dx.doi.org/10.1117/12.826518.

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Sirbu, Dan, Stuart B. Shaklan, N. Jeremy Kasdin, and Robert J. Vanderbei. "Scaling relation for occulter manufacturing errors." In SPIE Optical Engineering + Applications, edited by Stuart Shaklan. SPIE, 2015. http://dx.doi.org/10.1117/12.2188789.

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Cady, Eric, Stuart B. Shaklan, N. Jeremy Kasdin, and David Spergel. "A method for modifying occulter shapes." In SPIE Optical Engineering + Applications, edited by Stuart B. Shaklan. SPIE, 2009. http://dx.doi.org/10.1117/12.826183.

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Thomson, Mark W., P. Douglas Lisman, Richard Helms, Phil Walkemeyer, Andrew Kissil, Otto Polanco, and Siu-Chun Lee. "Starshade design for occulter based exoplanet missions." In SPIE Astronomical Telescopes + Instrumentation, edited by Jacobus M. Oschmann, Jr., Mark C. Clampin, and Howard A. MacEwen. SPIE, 2010. http://dx.doi.org/10.1117/12.858313.

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8

Cady, Eric, Kunjithapatham Balasubramanian, Michael Carr, Matthew Dickie, Pierre Echternach, Tyler Groff, Jeremy Kasdin, et al. "Progress on the occulter experiment at Princeton." In SPIE Optical Engineering + Applications, edited by Stuart B. Shaklan. SPIE, 2009. http://dx.doi.org/10.1117/12.826359.

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Arenberg, Jonathan W., Amy S. Lo, Webster Cash, and Ronald S. Polidan. "New Worlds Occulter performance: a first look." In SPIE Astronomical Telescopes + Instrumentation, edited by John C. Mather, Howard A. MacEwen, and Mattheus W. M. de Graauw. SPIE, 2006. http://dx.doi.org/10.1117/12.671957.

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Sirbu, Dan, Eric J. Cady, N. Jeremy Kasdin, Robert J. Vanderbei, Jianxiao Lu, and Emmeline Kao. "Optical verification of occulter-based high contrast imaging." In SPIE Optical Engineering + Applications, edited by Stuart Shaklan. SPIE, 2011. http://dx.doi.org/10.1117/12.894213.

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Reports on the topic "Occulter"

1

Dong, Zhongyun. A Novel Therapy System for the Treatment of Occult Prostate Cancer. Fort Belvoir, VA: Defense Technical Information Center, May 2006. http://dx.doi.org/10.21236/ada455776.

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Dong, Zhongyun. A Novel Therapy System for the Treatment of Occult Prostate Cancer. Fort Belvoir, VA: Defense Technical Information Center, May 2007. http://dx.doi.org/10.21236/ada469669.

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3

Perry, Susan M. The Prevalence of Visible and/or Occult Blood on Anesthesia and Monitoring Equipment. Fort Belvoir, VA: Defense Technical Information Center, September 1998. http://dx.doi.org/10.21236/ad1012056.

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Nikkola, Rachael J. Prevalence of Visible and Occult Blood on Airway Management Equipment Used Outside the Operating Room. Fort Belvoir, VA: Defense Technical Information Center, September 1999. http://dx.doi.org/10.21236/ad1012163.

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Zhang, Hao. Thoracic cavity drainage and clinical observation in the treatment of occult pneumothorax:a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review Protocols, April 2020. http://dx.doi.org/10.37766/inplasy2020.4.0049.

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