Results 61 to 70 of about 1,236 (164)

X-ray interferometry with transmissive beam combiners for ultra-high angular resolution astronomy

, 2009
Interferometry provides one of the possible routes to ultra-high angular resolution for X-ray and gamma-ray astronomy. Sub-micro-arc-second angular resolution, necessary to achieve objectives such as imaging the regions around the event horizon of a ...
Krizmanic, J. F., Skinner, G. K.
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Glancing angle Talbot-Lau grating interferometers for phase contrast imaging at high x-ray energy [PDF]

Applied Physics Letters, 2012
A Talbot-Lau interferometer is demonstrated using micro-periodic gratings inclined at a glancing angle along the light propagation direction. Due to the increase in the effective thickness of the absorption gratings, the device enables differential phase contrast imaging at high x-ray energy, with improved fringe visibility (contrast). For instance, at
D, Stutman, M, Finkenthal
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Concept of an ionizing time-domain matter-wave interferometer

, 2011
We discuss the concept of an all-optical and ionizing matter-wave interferometer in the time domain. The proposed setup aims at testing the wave nature of highly massive clusters and molecules, and it will enable new precision experiments with a broad ...
Born M, Brezger B, Brühl R, Carlip S, Clauser J, Diosi L, Domokos P, Hasselbach F, Hornberger K, Kazantsev A, Klaus Hornberger, Kreibig U, Markus Arndt, Nimmrichter S, Palik E, Patterson D, Philipp Haslinger, Rauch H, Romero-Isart O, Stefan Nimmrichter, Wang C H T   +20 more
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Preliminary Research on Dual-Energy X-Ray Phase-Contrast Imaging

, 2015
Dual-energy X-ray absorptiometry (DEXA) has been widely applied to measure bone mineral density (BMD) and soft-tissue composition of human body. However, the use of DEXA is greatly limited for low-Z materials such as soft tissues due to their weak ...
Gao, Kun, Han, Huajie, Wang, Shenghao, Wang, Zhili, Yang, Meng, Zhang, Can, Zhang, Kai, Zhu, Peiping   +7 more
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Phase Space Tomography of Matter-Wave Diffraction in the Talbot Regime

, 2012
We report on the theoretical investigation of Wigner distribution function (WDF) reconstruction of the motional quantum state of large molecules in de Broglie interference. De Broglie interference of fullerenes and as the like already proves the wavelike
Berry M V, C Szewc, Friesch O M, H Ulbricht, Herman G T, Leonhardt U, M S Kim, Pfau T, S K Lee, Schleich W, Schmied R   +10 more
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The new neutron grating interferometer at the ANTARES beamline - Design, Principle, and Applications -

, 2016
Neutron grating interferometry is an advanced method in neutron imaging that allows the simultaneous recording of the transmission, the differential phase and the dark-field image.
Benedikt Betz, Michael Horisberger, Michael Schulz, Peter Böni, Sebastian Mühlbauer, Tommy Reimann   +5 more
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Collisional decoherence observed in matter wave interferometry

, 2003
We study the loss of spatial coherence in the extended wave function of fullerenes due to collisions with background gases. From the gradual suppression of quantum interference with increasing gas pressure we are able to support quantitatively both the ...
Anton Zeilinger, B. Brezger, Björn Brezger, E. Joos, G. C. Maitland, J. O. Hirschfelder, Klaus Hornberger, Lucia Hackermüller, M. Scully, M. Tegmark, Markus Arndt, R. Penrose, S. Maruyama, Stefan Uttenthaler, W. H. Zurek   +14 more
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Realisierung eines Talbot-Lau-Interferometers an Mikrofokusröhren für materialwissenschaftliche Tomografieanwendungen

, 2016
Durch Verwendung eines Talbot-Lau Interferometers können in der Computertomografie Aufnahmen in Phasen- und Dunkelfeldkontrast dargestellt werden. Dies wurde bereits anhand mehrerer Anwendungen im medizinischen Bereich demonstriert. Das Ziel dieser Arbeit war einen Talbot-Lau Interferometer mit einer Transmissions-Mikrofokus-Röntgenröhre umzusetzen und
openaire   +3 more sources

Low dose and fast grating-based x-ray phase-contrast imaging using the integrating-bucket phase modulation technique

, 2017
X-ray phase-contrast imaging has experienced rapid development over the last few decades, and in this technology, the phase modulation strategy of phase-stepping is used most widely to measure the sample's phase signal.
Gao, Kun, Han, Huajie, Tiana, Yangchao, Wali, Faiz, Wang, Shenghao, Wu, Zhao, Zhu, Peiping   +6 more
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Experimental motivation and empirical consistency in minimal no-collapse quantum mechanics

, 2005
We analyze three important experimental domains (SQUIDs, molecular interferometry, and Bose-Einstein condensation) as well as quantum-biophysical studies of the neuronal apparatus to argue that (i) the universal validity of unitary dynamics and the ...
Adler, Anderson, Andrews, Arndt, Arndt, Barco, Barnum, Bassi, Bassi, Bell, Benatti, Bohr, Bohr, Bordé, Bose, Bradley, Bradley, Brezger, Brune, Buffa, Calsamiglia, Chapman, Chudnovsky, Cirac, Clarke, Collins, Dalvit, Davis, Deutsch, Deutsch, DeWitt, DeWitt, DeWitt, Diósi, Donald, Dunningham, d’Espagnat, Einstein, Einstein, Einstein, Everett, Everitt, Friedman, Friedman, Gallis, Geroch, Ghirardi, Gordon, Graham, Greenberg, Greenberger, Hackermüller, Hackermüller, Hackermüller, Hagan, Hameroff, Hameroff, Hartle, Hornberger, Hornberger, Hornberger, Hornberger, Jack, Javanainen, Javanainen, Joos, Joos, Kandel, Kent, Korotkov, Korotkov, Kuang, Leggett, Leggett, Lockwood, Louis, Mahmud, Marshall, Martinis, Maximilian Schlosshauer, Mermin, Micheli, Mohrhoff, Monroe, Nairz, Nakamura, Ollivier, Pearle, Penrose, Polkovnikov, Polkovnikov, Rae, Raimond, Rosa, Rouse, Rouse, Ruostekoski, Ruostekoski, Röhrl, Saba, Sackett, Schlosshauer, Schlosshauer, Schrödinger, Shimony, Shin, Silvestrini, Silvestrini, Squires, Stapp, Stapp, Stein, Tegmark, Tegmark, Thaheld, Vaidman, van der Wal, Vion, von Neumann, Wallace, Wallace, Wallace, Weiss, Wernsdorfer, Wigner, Yu, Zeh, Zeh, Zeh, Zeh, Zeh, Zurek, Zurek, Zurek, Zurek, Zurek, Zurek, Zurek, Zurek   +138 more
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