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AbstractAbstract
[en] For monitoring the position and shape of fast moving and, especially, rotating objects such as turbo machine rotors, contactless and compact sensors with a high measurement rate as well as high precision are required. We present for the first time, to the best of our knowledge, a novel laser Doppler sensor employing a single fan-shaped interference fringe system, which allows measuring for the position and shape of fast moving solid bodies with known tangential velocity. It is shown theoretically as well as experimentally that this sensor offers concurrently high position resolution and high temporal resolution in contrast to conventional measurement techniques, since its measurement uncertainty is, in principle, independent of the object velocity. Moreover, it can be built very compact, because it features low complexity. To prove its operational capability and its potential for practical applications, radial and axial shape measurements of rotating bodies are demonstrated in comparison with triangulation. An average position resolution of about 2 μm could be achieved
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(c) 2009 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA)
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Elmaghraby, Elsayed K, E-mail: elsayed.elmaghraby@eaea.org.eg, E-mail: e.m.k.elmaghraby@gmail.com2019
AbstractAbstract
[en] This work is devoted to an evaluation of the integral coefficients of neutron resonances directly from resonance parameters, which enables the evaluation of individually distinct single-resonance integrals. Individually distinct single-resonance integrals are useful when investigating the statistical nature of resonance distribution, the role of the neutron flux shape parameter, applications in nuclear reaction physics, isotope synthesis in reactors and astrophysical entities, activation analysis, and the science of nuclear materials. The present R-matrix treatment comprises exact expressions for the Breit–Wigner resonance representation and approximate expressions for the Reich–Moore representation; the latter is used to avoid the complicated techniques used for matrix inversion. The analytical formulae are used to evaluate the necessary integral neutron coefficients directly from spectroscopic nuclear data. Using the analytical formulae, the resonance integrals and the effective resonance energy can be taken into consideration for any specific values of epi-thermal shape parameter. In addition, the atomic displacement densities can be computed with variable threshold energies for atomic displacements. A Fortran code, NEURESINT, designed to perform these calculations is given in the manuscript’s supplementary material available online at stacks.iop.org/PS/94/065301/mmedia. The code is used to compare integral coefficients among different versions of evaluated nuclear data files. The present approximation gives thoroughly consistent results with the reported values of integral parameters. Our results showed that care must be taken when applying the methods and code mentioned in the present work to some isotopes, especially actinides having a resonance level close to the epi-cadmium cutoff energy at 0.55 eV, in which much smaller cutoff energy value, as low as 0.1 eV, needs to be used. (paper)
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Source
Available from http://dx.doi.org/10.1088/1402-4896/ab0845; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Physica Scripta (Online); ISSN 1402-4896;
; v. 94(6); [15 p.]

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Summhammer, J.; Rauch, H.; Tuppinger, D.
Matter wave interferometry in the light of Schroedinger's wave mechanics1987
Matter wave interferometry in the light of Schroedinger's wave mechanics1987
AbstractAbstract
[en] Published in summary form only
Primary Subject
Source
Atominstitut der Oesterreichischen Universitaeten, Vienna; Erwin Schroedinger Society, Vienna (Austria); 85 p; 1987; p. 59; Matter wave interferometry in the light of Schroedinger's wave mechanics; Vienna (Austria); 16-18 Sep 1987
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Miscellaneous
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Yuan, Qi-Zhang; Zhou, Shu-Jie; Feng, Xun-Li, E-mail: xlfeng@shnu.edu.cn2020
AbstractAbstract
[en] A new type of four-path interferometer is proposed to investigate the nature of the ‘discontinuous trajectories’ of a photon. Our derivation shows that the absence of ‘weak traces’, which makes the trajectories of the photon seem to be discontinuous, is actually due to the multi-path interference, and cannot be a strong criterion to say ‘The photon has not been there.’ The presence of the weak traces is a sufficient but not necessary condition for the fact that the photon has been the corresponding places. Moreover, the propagating paths of the photon must always be continuous. (paper)
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Source
Available from http://dx.doi.org/10.1088/1555-6611/abaefe; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Laser Physics (Online); ISSN 1555-6611;
; v. 30(10); [4 p.]

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AbstractAbstract
[en] A method is proposed for recording a series of double-exposure holograms in one recording medium by rotating the medium between the recording cycles and reconstructing the interference patterns characterising a change in the object state in time. The conditions for obtaining interference patterns in fringes of infinite and finite widths are considered. The results of experiments on recording a series of nine double-exposure holograms in an FG-690 holographic film are presented. (holography)
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Source
Available from http://dx.doi.org/10.1070/QE2006v036n02ABEH013117; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Quantum Electronics (Woodbury, N.Y.); ISSN 1063-7818;
; v. 36(2); p. 154-158

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Goncharov, A.V.; Mazilov, A.V.; Poddubko, N.S.; Tolstolutskij, A.G.
International Conference 'Current Problems in Nuclear Physics and Atomic Energy'. May 29 - Jun 03 2006. Book of Abstracts2006
International Conference 'Current Problems in Nuclear Physics and Atomic Energy'. May 29 - Jun 03 2006. Book of Abstracts2006
AbstractAbstract
No abstract available
Original Title
Issledovanie sostoyaniya ehlementov yadernoj ehnergetiki metodami spekl-golografii
Primary Subject
Source
Vyshnevskyi, I.M. (ed.); Yinstitut Yadernikh Doslyidzhen', NAN Ukrayini, Kyiv (Ukraine); Kiyivs'kij Natsyional'nij unyiversitet, Kyiv (Ukraine); Natsyional'na energogeneruyucha kompanyiya Ukrayini 'ENERGOATOM', Kyiv (Ukraine); 201 p; 2006; p. 141; International Conference 'Current Problems in Nuclear Physics and Atomic Energy'; Myizhnarodna konferentsiya 'Aktual'nyi problemi yadernoyi fyiziki ta atomnoyi energetiki'; Kyiv (Ukraine); 29 May - 3 Jun 2006
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AbstractAbstract
No abstract available
Source
Israel Atomic Energy Commission, Tel Aviv; p. 240-241; Jul 1981; p. 240-241; Published in summary form only.
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Report
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Walker, E.H.; May, E.C.; Piantanida, T.; Spottiswoode, S.J.P.
Matter wave interferometry in the light of Schroedinger's wave mechanics1987
Matter wave interferometry in the light of Schroedinger's wave mechanics1987
AbstractAbstract
[en] Published in summary form only
Primary Subject
Source
Atominstitut der Oesterreichischen Universitaeten, Vienna; Erwin Schroedinger Society, Vienna (Austria); 85 p; 1987; p. 64; Matter wave interferometry in the light of Schroedinger's wave mechanics; Vienna (Austria); 16-18 Sep 1987
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
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Source
Available from http://dx.doi.org/10.1070/PU1998v041n02ABEH000359; Abstract only; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Physics Uspekhi; ISSN 1063-7869;
; v. 41(2); p. 182-186

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Mark, Manfred J; Haller, Elmar; Danzl, Johann G; Lauber, Katharina; Naegerl, Hanns-Christoph; Gustavsson, Mattias, E-mail: Christoph.Naegerl@uibk.ac.at2011
AbstractAbstract
[en] We demonstrate the temporal Talbot effect for trapped matter waves using ultracold atoms in an optical lattice. We investigate the phase evolution of an array of essentially non-interacting matter waves and observe matter-wave collapse and revival in the form of a Talbot interference pattern. By using long expansion times, we image momentum space with sub-recoil resolution, allowing us to observe fractional Talbot fringes up to tenth order.
Primary Subject
Source
Available from http://dx.doi.org/10.1088/1367-2630/13/8/085008; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
New Journal of Physics; ISSN 1367-2630;
; v. 13(8); [15 p.]

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