TITLE

Refraction as imaging signal for computerized (neutron) tomography

AUTHOR(S)
Treimer, W.; Strobl, M.; Hilger, A.; Seifert, C.; Feye-Treimer, U.
PUB. DATE
July 2003
SOURCE
Applied Physics Letters;7/14/2003, Vol. 83 Issue 2, p398
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Refraction of thermal neutrons was used as imaging signal for computerized neutron tomography. Using a special instrument, attenuation and refraction could be observed simultaneously, extracted and separated from each other, and two-dimensional (2D) images reconstructed from pure refraction data. Even in the case of no attenuation contrast, perfect 2D images of objects could be reconstructed using the refraction data only.
ACCESSION #
10220392

 

Related Articles

  • Refraction-contrast tomosynthesis imaging using dark-field imaging optics. Sunaguchi, Naoki; Yuasa, Tetsuya; Huo, Qingkai; Ichihara, Shu; Ando, Masami // Applied Physics Letters;9/5/2011, Vol. 99 Issue 10, p103704 

    A soft tissue tomosynthesis imaging system using Laue-case analyzer for dark-field imaging (DFI) optics is described. Two images from which refraction component is deduced are obtained in a single exposure of DFI, while two exposures are required in diffraction enhanced imaging (DEI). The...

  • Refraction-based tomosynthesis: Proof of the concept. Maksimenko, Anton; Yuasa, Tetsuya; Ando, Masami; Hashimoto, Eiko // Applied Physics Letters;12/3/2007, Vol. 91 Issue 23, p234108 

    Tomosynthesis is a well known technique for imaging a plane in a target by blurring other planes in the target. Commonly, the tomosynthesis is based on the x-ray absorption contrast. Recently, methods for generating other x-ray contrasts were developed. One of them, the so-called refraction...

  • Extreme-angle broadband metamaterial lens. Kundtz, Nathan; Smith, David R. // Nature Materials;Feb2010, Vol. 9 Issue 2, p129 

    For centuries, the conventional approach to lens design has been to grind the surfaces of a uniform material in such a manner as to sculpt the paths that rays of light follow as they transit through the interfaces. Refractive lenses formed by this procedure of bending the surfaces can be of...

  • Subwavelength resolution with a negative-index metamaterial superlens. Aydin, Koray; Bulu, Irfan; Ozbay, Ekmel // Applied Physics Letters;6/18/2007, Vol. 90 Issue 25, p254102 

    Negative-index metamaterials are candidates for imaging objects with sizes smaller than a half-wavelength. The authors report an impedance-matched, low loss negative-index metamaterial superlens that is capable of resolving subwavelength features of a point source with a 0.13λ resolution,...

  • Purdue researchers develop material for better optics, communications. McHale, John // Military & Aerospace Electronics;Jan2006, Vol. 17 Issue 1, p16 

    The article cites the finding of a research, conducted by the scientists at Purdue University's Birck Nanotechnology Center in West Lafayette, Indiana, which reports on the creation a material that has a negative index of refraction in the wavelength of light used for telecommunications. This...

  • Recent developments in neutron imaging with applications for porous media research. Kaestner, Anders P.; Trtik, Pavel; Zarebanadkouki, Mohsen; Kazantsev, Daniil; Snehota, Michal; Dobson, Katherine J.; Lehmann, Eberhard H. // Solid Earth;2016, Vol. 7 Issue 5, p1281 

    Computed tomography has become a routine method for probing processes in porous media, and the use of neutron imaging is especially suited to the study of the dynamics of hydrogenous fluids, and of fluids in a highdensity matrix. In this paper we give an overview of recent developments in both...

  • Quantitative coherent diffractive imaging of an integrated circuit at a spatial resolution of 20 nm. Abbey, Brian; Williams, Garth J.; Pfeifer, Mark A.; Clark, Jesse N.; Putkunz, Corey T.; Torrance, Angela; McNulty, Ian; Levin, T. M.; Peele, Andrew G.; Nugent, Keith A // Applied Physics Letters;11/24/2008, Vol. 93 Issue 21, p214101 

    The complex transmission function of an integrated circuit is reconstructed at 20 nm spatial resolution using coherent diffractive imaging. A quantitative map is made of the exit surface wave emerging from void defects within the circuit interconnect. Assuming a known index of refraction for the...

  • Response to: position-dependent accommodative shift of retropupillary fixated iris-claw lenses. Sekundo, Walter // Graefe's Archive of Clinical & Experimental Ophthalmology;Oct2013, Vol. 251 Issue 10, p2485 

    No abstract available.

  • Angle-dependent THz tomography - characterization of thin ceramic oxide films for fuel cell applications. Brucherseifer, M.; Haring Bolivar, P.; Klingenberg, H.; Kurz, H. // Applied Physics B: Lasers & Optics;2001, Vol. 72 Issue 3, p361 

    Abstract. A time-resolved THz tomography system for the incidence-angle-dependent three-dimensional characterization of layered structures is presented. The capabilities of the developed system are demonstrated on multi-layer ceramic samples used for solid oxide fuel cells (SOFC). Appropriate...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics