Sample records for tomography print humankind

  1. advanced computed tomography: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2007-01-01 4 Geometric Tomography: A Limited-View Approach for Computed Tomography Computer Technologies and Information Sciences Websites Summary: Geometric Tomography: A...

  2. assisted tomography romicat: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    principles behind Doppler tomography, including a comparison of the relative merits of maximum entropy regularisation versus filtered back-projection for implementing the...

  3. abdominal computerized tomography: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    principles behind Doppler tomography, including a comparison of the relative merits of maximum entropy regularisation versus filtered back-projection for implementing the...

  4. aids computed tomography: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Computer-aided diagnosis of rheumatoid arthritis with optical tomography, Part Computer...

  5. absorption spectroscopic tomography: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    absorption spectroscopic tomography First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Separation of...

  6. Politics and Eschatology: Christian, Muslim and Liberal Traditions and Their Visions of Humankind's Future

    E-Print Network [OSTI]

    Loureiro, Roberto V.

    2012-02-14T23:59:59.000Z

    .......................................................................... 100 Conclusion ...................................................................................... 104 V LIBERALISM AND ESCHATOLOGY: KANT, MILL AND FUKUYAMA ON THE FUTURE OF HUMANKIND.......................... 107 Immanuel Kant: The Cure for Universal Evil ................................ 117 John Stuart Mill: Bringing Heaven to Earth ................................... 134 Francis Fukuyama: The Liberal End of History...

  7. Beer is the basis of modern civilization. Without it, humankind would have not

    E-Print Network [OSTI]

    Schladow, S. Geoffrey

    Beer is the basis of modern civilization. Without it, humankind would have not established static communities. Without it, we would not have the modern pharmaceutical industry. With beer, we have the world's favorite alcoholic beverage ­ the drink of moderation. The science and technology of making beer is complex

  8. CIM-EARTH: Community integrated model of economic and resource trajectories for humankind.

    SciTech Connect (OSTI)

    Elliott, J.; Foster, I.; Judd, K.; Moyer, E.; Munson, T.; Univ. of Chicago; Hoover Inst.

    2010-01-01T23:59:59.000Z

    Climate change is a global problem with local climatic and economic impacts. Mitigation policies can be applied on large geographic scales, such as a carbon cap-and-trade program for the entire U.S., on medium geographic scales, such as the NOx program for the northeastern U.S., or on smaller scales, such as statewide renewable portfolio standards and local gasoline taxes. To enable study of the environmental benefits, transition costs, capitalization effects, and other consequences of mitigation policies, we are developing dynamic general equilibrium models capable of incorporating important climate impacts. This report describes the economic framework we have developed and the current Community Integrated Model of Economic and Resource Trajectories for Humankind (CIM-EARTH) instance.

  9. Algorithms and statistics for advanced DNA analysis For the first time in history, humankind has the ability to easily read and write DNA sequence, a code

    E-Print Network [OSTI]

    University of Technology, Sydney

    , humankind has the ability to easily read and write DNA sequence, a code which describes the very essence of life itself. Global DNA sequencing operations currently generate 30TB data every day and the rate of this data generation more than doubles every year, outpacing Moore's Law. Sequence analysis has entered

  10. Plasma Physics and Controlled Fusion, Vol. 32, No. 5, pp, 335 to 357, 1990 0741-3335;90 ~ 3 . 0 0 ~.oo Printed in Great Britain. 01990 IOP Publishing Ltd. and Pergamon Press plc

    E-Print Network [OSTI]

    ~.oo Printed in Great Britain. 01990 IOP Publishing Ltd. and Pergamon Press plc LOOP-VOLTAGE TOMOGRAPHY

  11. Pseudolocal tomography

    DOE Patents [OSTI]

    Katsevich, Alexander J. (Los Alamos, NM); Ramm, Alexander G. (Manhattan, KS)

    1996-01-01T23:59:59.000Z

    Local tomographic data is used to determine the location and value of a discontinuity between a first internal density of an object and a second density of a region within the object. A beam of radiation is directed in a predetermined pattern through the region of the object containing the discontinuity. Relative attenuation data of the beam is determined within the predetermined pattern having a first data component that includes attenuation data through the region. The relative attenuation data is input to a pseudo-local tomography function, where the difference between the internal density and the pseudo-local tomography function is computed across the discontinuity. The pseudo-local tomography function outputs the location of the discontinuity and the difference in density between the first density and the second density.

  12. Pseudolocal tomography

    DOE Patents [OSTI]

    Katsevich, A.J.; Ramm, A.G.

    1996-07-23T23:59:59.000Z

    Local tomographic data is used to determine the location and value of a discontinuity between a first internal density of an object and a second density of a region within the object. A beam of radiation is directed in a predetermined pattern through the region of the object containing the discontinuity. Relative attenuation data of the beam is determined within the predetermined pattern having a first data component that includes attenuation data through the region. The relative attenuation data is input to a pseudo-local tomography function, where the difference between the internal density and the pseudo-local tomography function is computed across the discontinuity. The pseudo-local tomography function outputs the location of the discontinuity and the difference in density between the first density and the second density. 7 figs.

  13. Doppler Tomography

    E-Print Network [OSTI]

    T. R. Marsh

    2000-11-01T23:59:59.000Z

    I review the method of Doppler tomography which translates binary-star line profiles taken at a series of orbital phases into a distribution of emission over the binary. I begin with a discussion of the basic principles behind Doppler tomography, including a comparison of the relative merits of maximum entropy regularisation versus filtered back-projection for implementing the inversion. Following this I discuss the issue of noise in Doppler images and possible methods for coping with it. Then I move on to look at the results of Doppler Tomography applied to cataclysmic variable stars. Outstanding successes to date are the discovery of two-arm spiral shocks in cataclysmic variable accretion discs and the probing of the stream/magnetospheric interaction in magnetic cataclysmic variable stars. Doppler tomography has also told us much about the stream/disc interaction in non-magnetic systems and the irradiation of the secondary star in all systems. The latter indirectly reveals such effects as shadowing by the accretion disc or stream. I discuss all of these and finish with some musings on possible future directions for the method. At the end I include a tabulation of Doppler maps published in refereed journals.

  14. Few areas of science are currently hotter than climate. Attempts to understand humankind's impact on our planet are occupying the front pages of countless newspapers and the minds of an increasingly

    E-Print Network [OSTI]

    informed public. Climate change is likewise occupying a good percentage of processors on some of the worldFew areas of science are currently hotter than climate. Attempts to understand humankind's impact of Earth's climate and in turn helping policymakers understand the risks and prepare for a myriad of future

  15. Computed tomography of cryogenic cells

    E-Print Network [OSTI]

    2001-01-01T23:59:59.000Z

    COMPUTED TOMOGRAPHY OF CRYOGENIC CELLS G. SCHNEIDER, and E.absorption, computed tomography (CT) can be performed. Sincethis work is to apply computed tomography, which has already

  16. Modulated Luminescent Tomography

    E-Print Network [OSTI]

    2015-01-28T23:59:59.000Z

    modalities behave differently than Photoacoustic and Thermoacoustic Tomography, where the ex- citation is highly diffusive but the emitted ultrasound signal ...

  17. Mathematics of thermoacoustic tomography

    E-Print Network [OSTI]

    Peter Kuchment; Leonid Kunyansky

    2007-10-21T23:59:59.000Z

    The paper presents a survey of mathematical problems, techniques, and challenges arising in the Thermoacoustic and Photoacoustic Tomography.

  18. Turbocharging Quantum Tomography.

    SciTech Connect (OSTI)

    Blume-Kohout, Robin J; Gamble, John King,; Nielsen, Erik; Maunz, Peter Lukas Wilhelm; Scholten, Travis L.; Rudinger, Kenneth Michael

    2015-01-01T23:59:59.000Z

    Quantum tomography is used to characterize quantum operations implemented in quantum information processing (QIP) hardware. Traditionally, state tomography has been used to characterize the quantum state prepared in an initialization procedure, while quantum process tomography is used to characterize dynamical operations on a QIP system. As such, tomography is critical to the development of QIP hardware (since it is necessary both for debugging and validating as-built devices, and its results are used to influence the next generation of devices). But tomography su %7C ers from several critical drawbacks. In this report, we present new research that resolves several of these flaws. We describe a new form of tomography called gate set tomography (GST), which unifies state and process tomography, avoids prior methods critical reliance on precalibrated operations that are not generally available, and can achieve unprecedented accuracies. We report on theory and experimental development of adaptive tomography protocols that achieve far higher fidelity in state reconstruction than non-adaptive methods. Finally, we present a new theoretical and experimental analysis of process tomography on multispin systems, and demonstrate how to more e %7C ectively detect and characterize quantum noise using carefully tailored ensembles of input states.

  19. Electron tomography of defects

    E-Print Network [OSTI]

    Sharp, Joanne

    2010-10-12T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . 36 2.6 Limitations of electron tomography . . . . . . . . . . . . . . . 37 2.6.1 The missing wedge . . . . . . . . . . . . . . . . . . . . 37 2.6.2 Minimum reliable spacing of features . . . . . . . . . . 39 3 Tomography of dislocations using weak... ELECTRON TOMOGRAPHY OF DEFECTS This dissertation is submitted for the degree of Doctor of Philosophy by Joanne Sharp Of Wolfson College Submitted 26th April 2010 Acknowledgements This dissertation is the result of my own work and includes nothing...

  20. Neutron computed tomography

    E-Print Network [OSTI]

    Russell, Clifford Marlow

    1992-01-01T23:59:59.000Z

    of tomography was discovered by Radon in 1917. Radon, a mathematician, solved the problem for an n-dimensional function with n-I dimensional projectors as related to gravitational equations. Radon's technique is not the only mathematical basis for tomography...

  1. Dual seven pinhole tomography

    SciTech Connect (OSTI)

    Bizais, Y.; Zubal, I.G.; Rowe, R.W.; Bennett, G.W.; Brill, A.B.

    1982-01-01T23:59:59.000Z

    Emission tomography using two orthogonal sets of projections through seven pinhole collimators is considered. This paper describes the acquisition system, the reconstruction algorithm, presents results obtained in phantom studies, and discusses the advantages and disadvantages of this method over conventional Seven Pinhole Tomography.

  2. Thermoacoustic tomography, variable sound speed Plamen Stefanov

    E-Print Network [OSTI]

    Stefanov, Plamen

    Thermoacoustic tomography, variable sound speed Plamen Stefanov Purdue University Based on a joint work with Gunther Uhlmann Plamen Stefanov (Purdue University ) Thermoacoustic tomography, variable sound speed 1 / 18 #12;Formulation Main Problem Thermoacoustic Tomography In thermoacoustic tomography

  3. Regularized Equally Sloped Tomography Algorithm for Low Dose X-Ray Computed Tomography

    E-Print Network [OSTI]

    Zhao, Yunzhe

    2012-01-01T23:59:59.000Z

    based imaging computed tomography extraction algorithms and10 2.2. Computed Tomography reconstruction theory andcontrast X-ray computed tomography for observing biological

  4. Regularized Equally Sloped Tomography Algorithm for Low Dose X-Ray Computed Tomography

    E-Print Network [OSTI]

    Zhao, Yunzhe

    2012-01-01T23:59:59.000Z

    based imaging computed tomography extraction algorithms andcontrast X-ray computed tomography for observing biological10 2.2. Computed Tomography reconstruction theory and

  5. Ionospheric Correction Using Tomography

    E-Print Network [OSTI]

    Stanford University

    re- quirements on the order of ones of meters with safety of life integrity requirements which delay algorithms. The capability of ionospheric tomography is demon- strated by a time series of 3D°N 30°N 30°N 40°N 40°N 50°N 50°N 60°N 60°N Figure 1: The NSTB reference network geometry is comprised

  6. Jet Tomography at RHIC

    E-Print Network [OSTI]

    J. C. Dunlop

    2007-07-10T23:59:59.000Z

    The status of the use of hard probes in heavy ion collisions at RHIC is reviewed. The discovery of strong jet quenching at RHIC is a major success. However, in order to make full use of this new phenomenon for full jet emission tomography of the properties of the collision zone further development is needed, both experimentally and theoretically.

  7. Enhanced local tomography

    DOE Patents [OSTI]

    Katsevich, Alexander J. (Los Alamos, NM); Ramm, Alexander G. (Manhattan, KS)

    1996-01-01T23:59:59.000Z

    Local tomography is enhanced to determine the location and value of a discontinuity between a first internal density of an object and a second density of a region within the object. A beam of radiation is directed in a predetermined pattern through the region of the object containing the discontinuity. Relative attenuation data of the beam is determined within the predetermined pattern having a first data component that includes attenuation data through the region. In a first method for evaluating the value of the discontinuity, the relative attenuation data is inputted to a local tomography function .function..sub..LAMBDA. to define the location S of the density discontinuity. The asymptotic behavior of .function..sub..LAMBDA. is determined in a neighborhood of S, and the value for the discontinuity is estimated from the asymptotic behavior of .function..sub..LAMBDA.. In a second method for evaluating the value of the discontinuity, a gradient value for a mollified local tomography function .gradient..function..sub..LAMBDA..epsilon. (x.sub.ij) is determined along the discontinuity; and the value of the jump of the density across the discontinuity curve (or surface) S is estimated from the gradient values.

  8. acidalia planitia mars: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  9. athena mars rover: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  10. aging adversely impacts: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  11. aging impacts transcriptome: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  12. analysis code mars: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  13. arabia region mars: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  14. aging liver improves: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  15. arabia terra mars: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  16. ares mars scout: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  17. arctic mars analog: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

  18. Windows XP - LPR Printing

    E-Print Network [OSTI]

    dbrown

    2004-07-27T23:59:59.000Z

    Printer Setup in Windows XP. To print to the math department printers in Windows XP, “Print Services for Unix” must be installed. To begin installation of “

  19. Thermoacoustic tomography with variable sound speed

    E-Print Network [OSTI]

    2009-10-26T23:59:59.000Z

    We study the mathematical model of thermoacoustic tomography in media with a ... In thermoacoustic tomography, a short electro-magnetic pulse is sent through ...

  20. Positron Emission Tomography (PET)

    DOE R&D Accomplishments [OSTI]

    Welch, M. J.

    1990-01-00T23:59:59.000Z

    Positron emission tomography (PET) assesses biochemical processes in the living subject, producing images of function rather than form. Using PET, physicians are able to obtain not the anatomical information provided by other medical imaging techniques, but pictures of physiological activity. In metaphoric terms, traditional imaging methods supply a map of the body's roadways, its, anatomy; PET shows the traffic along those paths, its biochemistry. This document discusses the principles of PET, the radiopharmaceuticals in PET, PET research, clinical applications of PET, the cost of PET, training of individuals for PET, the role of the United States Department of Energy in PET, and the futures of PET.

  1. Radial reflection diffraction tomography

    DOE Patents [OSTI]

    Lehman, Sean K.

    2012-12-18T23:59:59.000Z

    A wave-based tomographic imaging method and apparatus based upon one or more rotating radially outward oriented transmitting and receiving elements have been developed for non-destructive evaluation. At successive angular locations at a fixed radius, a predetermined transmitting element can launch a primary field and one or more predetermined receiving elements can collect the backscattered field in a "pitch/catch" operation. A Hilbert space inverse wave (HSIW) algorithm can construct images of the received scattered energy waves using operating modes chosen for a particular application. Applications include, improved intravascular imaging, bore hole tomography, and non-destructive evaluation (NDE) of parts having existing access holes.

  2. Stored Luminescence Computed Tomography

    E-Print Network [OSTI]

    Cong, Wenxiang; Wang, Ge

    2013-01-01T23:59:59.000Z

    The phosphor nanoparticles made of doped semiconductors, pre-excited by well-collimated X-ray radiation, were recently reported for their light emission upon NIR light stimulation. The characteristics of X-ray energy storage and NIR stimulated emission is highly desirable to design targeting probes and improve molecular and cellular imaging. Here we propose stored luminescence computed tomography (SLCT), perform realistic numerical simulation, and demonstrate a much-improved spatial resolution in a preclinical research context. The future opportunities are also discussed along this direction.

  3. Medical Imaging Computed Tomography (CT)

    E-Print Network [OSTI]

    Massey, Thomas N.

    Module 10 Medical Imaging · X-rays · Computed Tomography (CT) · Positron Emission Tomography (PET Sources PET-TOF #12;Four Sources PET #12;Four Sources PET-TOF #12;PET Scan MRI CT scan #12;Endocrine Gland,000 pixels! #12;Modern Example of CT Scan with the addition of Surface Shading Standard CT With Surface

  4. Continental breakup and the dawn of humankind

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting theCommercializationValidationEnterprise ArchitectureContacts

  5. Ultrasound-modulated optical tomography 

    E-Print Network [OSTI]

    Nam, Haewon

    2004-09-30T23:59:59.000Z

    Ultrasound-modulated optical tomography is modeled by a linear integral equation and an inverse problem involving a diffusion equation in n spatial dimensions, n=2, 3. Based on measured data, the optical absorption coefficient ?...

  6. Teleseismic transmission and reflection tomography

    E-Print Network [OSTI]

    Burdick, Scott A. (Scott Anthony)

    2014-01-01T23:59:59.000Z

    The aim of seismic tomography is to determine a model of Earth properties that best explain observed seismic data. In practice, the limitations placed on our observations and computational capabilities force us to make a ...

  7. Mathematical Problems of Thermoacoustic Tomography 

    E-Print Network [OSTI]

    Nguyen, Linh V.

    2010-10-12T23:59:59.000Z

    Thermoacoustic tomography (TAT) is a newly emerging modality in biomedical imaging. It combines the good contrast of electromagnetic and good resolution of ultrasound imaging. The mathematical model of TAT is the observability problem for the wave...

  8. EMISSION AND TRANSMISSION NOISE PROPAGATION IN POSITRON EMISSION COMPUTED TOMOGRAPHY

    E-Print Network [OSTI]

    Gullberg, G.T.

    2010-01-01T23:59:59.000Z

    High Resolution Computed Tomography of Positron Emitters,"of Dynamic Emission Computed Tomography," J. Nucl. Med. ~:IN POSITRON EMISSION COMPUTED TOMOGRAPHY RECEIVED lAWRENCE

  9. SINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY: COMPENSATION FOR CONSTANT ATTENUATION

    E-Print Network [OSTI]

    Gullberg, Grant T.

    2013-01-01T23:59:59.000Z

    in radionuclide computed tomography," IEEE Trans. Nucl.49. M.E.Phelps, Emission computed tomography,~~ Seminars inSINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY: COMPENSATION FOR

  10. Artifact Simulating Fracture on Cervical Spine Computed Tomography

    E-Print Network [OSTI]

    Shockley, Lee W.; Kendall, John L.

    2011-01-01T23:59:59.000Z

    on Cervical Spine Computed Tomography Lee W. Shockley, MD,patient with computed tomography concerning significant C3-scalp laceration. Computed tomography (CT) of her head was

  11. Thermal Neutron Computed Tomography of Soil Water and Plant Roots

    E-Print Network [OSTI]

    Leanne G. Tumlinson; Hungyuan Liu; Wendy K. Silk; Jan W. Hopmans

    2007-01-01T23:59:59.000Z

    2000. 3D neutron computed tomography: Requirements and2002. Using x-ray computed tomography in hydrology: Systems,of neutron computed tomography in the geosciences. Nucl.

  12. Application of neutron computed tomography in the geosciences

    E-Print Network [OSTI]

    Wilding, M.; Shields, K.; Lesher, C. E.

    2005-01-01T23:59:59.000Z

    of neutron computed tomography in the geosciences Martinthat applies neutron computed tomography (CT) to geologicalthe use of neutron computed tomography (CT) in the analy-

  13. Hyperdense Cerebral Sinus Vein Thrombosis on Computed Tomography

    E-Print Network [OSTI]

    Zeina, Abdel-Rauf; Kassem, Eiass; Klein, Adi; Nachtigal, Alicia

    2010-01-01T23:59:59.000Z

    Vein Thrombosis on Computed Tomography Abdel-Rauf Zeina*1. Unenhanced axial computed tomography (CT) (a-c) shows theBrain unenhanced computed tomography (CT) on admission

  14. Frequency of Incidental Findings on Computed Tomography of Trauma Patients

    E-Print Network [OSTI]

    Devine, Alicia S; Jackson, Corinne S; Lyons, Lisa; Mason, Jon D

    2010-01-01T23:59:59.000Z

    findings on trauma computed tomography scans: experience atfindings in brain computed tomography scans of 3000 headfindings on chest computed tomography angiography performed

  15. Patient Attitudes Regarding Consent for Emergency Department Computed Tomographies

    E-Print Network [OSTI]

    Weigner, Michael B; Basham, Hilary F; Dewar, Kate M; Rupp, Valerie A; Cornelius, Llewellyn; Greenberg, Marna Rayl

    2014-01-01T23:59:59.000Z

    associated with common Computed Tomography examinations andRegarding Consent for Computed Tomographies ucm2007191.htm.for Emergency Department Computed Tomographies Lehigh Valley

  16. 3D Printing Electronics

    E-Print Network [OSTI]

    Stryk, Oskar von

    Login Register Home Videos Jobs Games 3D Printing Electronics Design Software Designer Edge for 3D Printing · -- B6 Sigma Labs (ticker SGLB) is not the same company as Sigma Technologies

  17. antineutrino tomography earth: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    inclusion of the recently measured beta decay properties of the 102;104;105;106;107Tc, 105Mo, and 101Nb nuclei in an updated calculation of the antineutrino energy...

  18. Tomography of a laser wakefield accelerator Tomography of a laser wakefield accelerator

    E-Print Network [OSTI]

    history of laser-plasma accelerators is reviewed. The excitation of plasma waves by ultra-short laser Tomography of a laser wakefield accelerator Tomography of a laser wakefield accelerator 692220024 #12; Tomography of a laser wakefield accelerator i #12; Tomography of a laser

  19. Thermoacoustic and Photoacoustic Tomography ... - Purdue University

    E-Print Network [OSTI]

    Plamen Stefanov

    2010-11-09T23:59:59.000Z

    Thermoacoustic and Photoacoustic Tomography with a variable continuous or discontinuous sound speed. Plamen Stefanov. Purdue University. Based on a ...

  20. Mathematics of Thermoacoustic and Photoacoustic Tomography

    E-Print Network [OSTI]

    Kuchment, Peter

    2007-01-01T23:59:59.000Z

    The paper presents a survey of mathematical problems, techniques, and challenges arising in the Thermoacoustic and Photoacoustic Tomography.

  1. Electron tomography of dislocation structures

    SciTech Connect (OSTI)

    Liu, G.S.; House, S.D.; Kacher, J. [Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W. Green St., Urbana, IL 61801 (United States); Tanaka, M.; Higashida, K. [Department of Materials Science and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395 (Japan); Robertson, I.M., E-mail: irobertson@wisc.edu [Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W. Green St., Urbana, IL 61801 (United States); Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706 (United States)

    2014-01-15T23:59:59.000Z

    Recent developments in the application of electron tomography for characterizing microstructures in crystalline solids are described. The underlying principles for electron tomography are presented in the context of typical challenges in adapting the technique to crystalline systems and in using diffraction contrast imaging conditions. Methods for overcoming the limitations associated with the angular range, the number of acquired images, and uniformity of image contrast are introduced. In addition, a method for incorporating the real space coordinate system into the tomogram is presented. As the approach emphasizes development of experimental solutions to the challenges, the solutions developed and implemented are presented in the form of examples.

  2. Mathematics of thermoacoustic and photoacoustic tomography

    E-Print Network [OSTI]

    Mathematics of thermoacoustic and photoacoustic tomography Peter Kuchment and Leonid Kunyansky in the Thermoacoustic and Photoacoustic To- mography. 1 Introduction Medical tomography has had a huge impact on medical succesfull example of such a combination is the Thermoacoustic Tomography (TAT) (also abbreviated as TCT) [50

  3. PROGRAMME SPECIFICATION Programme name Radiography (Computed Tomography);

    E-Print Network [OSTI]

    Weyde, Tillman

    1 PROGRAMME SPECIFICATION KEY FACTS Programme name Radiography (Computed Tomography); Radiography in a clinical speciality, for example, Computed Tomography, you must successfully complete the Computed-time The postgraduate programmes in Radiography provide advanced education in #12;2 Computed Tomography and Medical

  4. Inkjet printed electronics using copper nanoparticle ink

    E-Print Network [OSTI]

    Kang, Jin Sung; Kim, Hak Sung; Ryu, Jongeun; Thomas Hahn, H.; Jang, Seonhee; Joung, Jae Woo

    2010-01-01T23:59:59.000Z

    providing printed electronics using copper nanoparticles.0049-3 Inkjet printed electronics using copper nanoparticleand quality of the printed electronics. In this paper, we

  5. Introduction to Positron Emission Tomography

    E-Print Network [OSTI]

    Oakes, Terry

    range: 1-10 mm Gamma-Ray range: 10 mm - 8 positron annihilation #12;Positron Emission Tomography #12;P.E.T. measures Concentration of Radioactivity 1) Gamma-rays escape from body: External detection possible. 2) Two gamma rays emitted at 180 when a positron annihilates: The annihilation occured somewhere

  6. abnormal resistive zones: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NO PRINTING ZONE NO PRINTING ZONE NO PRINTING ZONE NO PRINTING ZONE Kainen, Paul C. 11 Seismic Amplitude Versus Offset (AVO) Character of Geopressured Transition Zones Geosciences...

  7. Self-guided quantum tomography

    E-Print Network [OSTI]

    Christopher Ferrie

    2014-11-10T23:59:59.000Z

    We introduce a self-learning tomographic technique in which the experiment guides itself to an estimate of its own state. Self-guided quantum tomography (SGQT) uses measurements to directly test hypotheses in an iterative algorithm which converges to the true state. We demonstrate through simulation on many qubits that SGQT is a more efficient and robust alternative to the usual paradigm of taking a large amount of informationally complete data and solving the inverse problem of post-processed state estimation.

  8. Compact organic vapor jet printing print head

    DOE Patents [OSTI]

    Forrest, Stephen R; McGraw, Gregory

    2013-12-24T23:59:59.000Z

    A first device is provided. The first device includes a print head, and a first gas source hermetically sealed to the print head. The print header further includes a first layer comprising a plurality of apertures, each aperture having a smallest dimension of 0.5 to 500 microns. A second layer is bonded to the first layer. The second layer includes a first via in fluid communication with the first gas source and at least one of the apertures. The second layer is made of an insulating material.

  9. Engraving Print Classification

    SciTech Connect (OSTI)

    Hoelck, Daniel [Instituto de Fisica, P. Universidad Catolica de Valparaiso, Av. Brasil 2905, Valparaiso (Chile); Barbe, Joaquim [Grupo Felix Klein, Facultad de Ciencias, Universidad de Santiago de Chile, Av. Lib. Bernardo O'Higgins 3363 (Chile)

    2008-04-15T23:59:59.000Z

    A print is a mark, or drawing, made in or upon a plate, stone, woodblock or other material which is cover with ink and then is press usually into a paper reproducing the image on the paper. Engraving prints usually are image composed of a group of binary lines, specially those are made with relief and intaglio techniques. Varying the number and the orientation of lines, the drawing of the engraving print is conformed. For this reason we propose an application based on image processing methods to classify engraving prints.

  10. THERMOACOUSTIC TOMOGRAPHY ARISING IN BRAIN IMAGING ...

    E-Print Network [OSTI]

    2011-02-21T23:59:59.000Z

    In this paper, we study the mathematical model of thermoacoustic and photoacoustic tomography for a sound speed that jumps across a smooth closed surface.

  11. Imaging and sensing based on muon tomography

    DOE Patents [OSTI]

    Morris, Christopher L; Saunders, Alexander; Sossong, Michael James; Schultz, Larry Joe; Green, J. Andrew; Borozdin, Konstantin N; Hengartner, Nicolas W; Smith, Richard A; Colthart, James M; Klugh, David C; Scoggins, Gary E; Vineyard, David C

    2012-10-16T23:59:59.000Z

    Techniques, apparatus and systems for detecting particles such as muons for imaging applications. Subtraction techniques are described to enhance the processing of the muon tomography data.

  12. Algorithm for Rapid Tomography of Gas Concentrations

    E-Print Network [OSTI]

    Price, P.N.

    2008-01-01T23:59:59.000Z

    sensing and computed tomography in industrial hygiene.American Industrial Hygiene Association Journal 51: 1165-indoor air. American Industrial Hygiene Association Journal

  13. Metal Artifact Reduction in Computed Tomography /

    E-Print Network [OSTI]

    Karimi, Seemeen

    2014-01-01T23:59:59.000Z

    Monoenergetic imaging of dual-energy CT reduces artifactsartifact reduction by dual energy computed tomography usingimage re- construction for dual energy X-ray transmission

  14. On reconstruction and time reversal in thermoacoustic tomography in acoustically

    E-Print Network [OSTI]

    Kuchment, Peter

    On reconstruction and time reversal in thermoacoustic tomography in acoustically homogeneous of recent approaches to the reconstruction in thermoacoustic/photoacoustic tomography: backprojection of the problem of sound speed recovery is also provided. Keywords: Tomography, thermoacoustic, wave equation. AMS

  15. Two-dimensional ultrasonic computed tomography of growing bones.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Two-dimensional ultrasonic computed tomography of growing bones. P. Lasaygues, E. Franceschini, R: Ultrasonic Computed Tomography, Bone imaging, Born approximation, iterative distorted method I. INTRODUCTION imaging process, using ultrasonic computed tomography. Although this method is known to provide

  16. Computational confocal tomography for simultaneous reconstruction of objects, occlusions,

    E-Print Network [OSTI]

    Fainman, Yeshaiahu

    Computational confocal tomography for simultaneous reconstruction of objects, occlusions computationally intense and novel reconstruction methods that we called "compu- tational confocal tomography." The key to computed tomography is the collection of projections of the data over a range of angles

  17. CLINICAL RESEARCH Clinical Trials Coronary Computed Tomography Angiography

    E-Print Network [OSTI]

    CLINICAL RESEARCH Clinical Trials Coronary Computed Tomography Angiography for Early Triage computed tomography angiography (CTA) in patients with acute chest pain. Background Triage of chest pain disease (CAD), 31% had nonobstructive disease, and 19% had inconclusive or positive computed tomography

  18. Dynamic Computed Tomography, an algebraic reconstruction method with

    E-Print Network [OSTI]

    Promayon, Emmanuel

    Dynamic Computed Tomography, an algebraic reconstruction method with deformation compensation Sofia . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.2 Computed Tomography . . . . . . . . . . . . . . . . . . . . . . 8 1.3 Dynamic Computed . . . . . . . . . . . . . . . . . . . . . 9 2 Basic tools for Computed Tomography 10 2.1 The Radon Transform

  19. Prevalence of Incidental Findings on Abdominal Computed Tomography Angiograms on Prospective Renal Donors

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    multidetector computed tomography angiography. Transplantof Radiology CT: computed tomography IF: incidental findings

  20. Utilization of Computed Tomography Angiography in the Evaluation of Acute Pulmonary Embolus

    E-Print Network [OSTI]

    Constantino, Mary; Randall, Geneva; Gosselin, Marc; Vegas, Carl; Brandt, Marissa; Spinning, Kristopher

    2007-01-01T23:59:59.000Z

    providers. Utilization of Computed Tomography Angiography inappropriate use of computed tomography angiography (CTA) in

  1. ADAPTIVE AND ROBUST TECHNIQUES (ART) FOR THERMOACOUSTIC TOMOGRAPHY

    E-Print Network [OSTI]

    Xie, Yao

    ADAPTIVE AND ROBUST TECHNIQUES (ART) FOR THERMOACOUSTIC TOMOGRAPHY By YAO XIE A DISSERTATION.1 Thermoacoustic Tomography . . . . . . . . . . . . . . . . . . . . . 1 1.2 Image Reconstruction Algorithms for TAT

  2. HEAVY-ION RADIOGRAPHY AND HEAVY-ION COMPUTED TOMOGRAPHY

    E-Print Network [OSTI]

    Fabrikant, J.I.

    2010-01-01T23:59:59.000Z

    RADIOGRAPHY AND HEAVY-ION COMPUTED TOMOGRAPHY 1,2 Jacob I .RADIOGRAPHY AND HEAVY-ION COMPUTED TOMOGRAPHY J I Fabrikant,

  3. Using X-Ray Computed Tomography in Pore Structure Characterization...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Using X-Ray Computed Tomography in Pore Structure Characterization for a Berea Sandstone: Resolution Effect. Using X-Ray Computed Tomography in Pore Structure Characterization for...

  4. Thermoacoustic Tomography in Elastic Media

    E-Print Network [OSTI]

    Justin Tittelfitz

    2011-10-11T23:59:59.000Z

    We investigate the problem of recovering the initial displacement f for a solution u of a linear, isotropic, non-homogeneous elastic wave equation, given measurements of u on [0,T] x \\partial \\Omega, where \\Omega\\subset\\R^3 is some bounded domain containing the support of f. For the acoustic wave equation, this problem is known as thermoacoustic tomography (TAT), and has been well-studied; for the elastic wave equation, the situation is somewhat more subtle, and we give sufficient conditions on the Lam\\'e parameters to ensure that recovery is possible.

  5. Fourier Transform Quantum State Tomography

    E-Print Network [OSTI]

    Mohammadreza Mohammadi; Agata M. Branczyk; Daniel F. V. James

    2013-01-17T23:59:59.000Z

    We propose a technique for performing quantum state tomography of photonic polarization-encoded multi-qubit states. Our method uses a single rotating wave plate, a polarizing beam splitter and two photon-counting detectors per photon mode. As the wave plate rotates, the photon counters measure a pseudo-continuous signal which is then Fourier transformed. The density matrix of the state is reconstructed using the relationship between the Fourier coefficients of the signal and the Stokes' parameters that represent the state. The experimental complexity, i.e. different wave plate rotation frequencies, scales linearly with the number of qubits.

  6. Surface Impedance Tomography for Antarctic Sea Ice

    E-Print Network [OSTI]

    Golden, Kenneth M.

    Surface Impedance Tomography for Antarctic Sea Ice C. Sampsona , K. M. Goldena , A. Gullya , A. P, Australia Abstract During the 2007 SIPEX expedition in pack ice off the coast of East Antarctica, we measured the electrical conductivity of sea ice via surface impedance tomography. Resistance data from

  7. Efficiency of quantum state tomography for qubits

    E-Print Network [OSTI]

    Koichi Yamagata

    2011-05-19T23:59:59.000Z

    The efficiency of quantum state tomography is discussed from the point of view of quantum parameter estimation theory, in which the trace of the weighted covariance is to be minimized. It is shown that tomography is optimal only when a special weight is adopted.

  8. REVIEW Open Access Micro computed tomography for

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    REVIEW Open Access Micro computed tomography for vascular exploration Lyubomir Zagorchev1 studies. Micro Computed Tomography (micro-CT) has emerged in recent years as the preferred modality and suggestions aimed at making micro-CT more accurate, replicable, and robust. Introduction Micro Computed

  9. Idiopathic juvenile osteoporosis: a cross-sectional single-centre experience with bone histomorphometry and quantitative computed tomography

    E-Print Network [OSTI]

    Bacchetta, Justine; Wesseling-Perry, Katherine; Gilsanz, Vicente; Gales, Barbara; Pereira, Renata C; Salusky, Isidro B

    2013-01-01T23:59:59.000Z

    and quantitative computed tomography. Pediatric Rheumatologyand quantitative computed tomography Justine Bacchetta 1 ,by quantitative computed tomography (QCT) and their

  10. Content-adaptive lenticular prints

    E-Print Network [OSTI]

    Tompkin, James

    Lenticular prints are a popular medium for producing automultiscopic glasses-free 3D images. The light field emitted by such prints has a fixed spatial and angular resolution. We increase both perceived angular and spatial ...

  11. Idea Generation 3D printing

    E-Print Network [OSTI]

    Papadopouli, Maria

    2012 Idea Generation 3D printing at nanoscale Cruising on electrical roads Pushing back against Centre micro and nanoscale 15 Taking 3D printing to the nanoscale 18 Fighting cancer with a "lab

  12. Roadmap: Radiologic Imaging Sciences -Computed Tomography (with AAS Radiologic Technology) -

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Radiologic Imaging Sciences - Computed Tomography (with AAS Radiologic Technology 34084 Computed Tomography and Magnetic Resonance Imaging Sectional Anatomy I 2 C RIS 44021 Patient Management in Computed Tomography (CT) 2 C RIS 44025 Computed Tomography (CT) Clinical Education I 3 C

  13. Reconstruction Algorithm for Single Photon Emission Computed Tomography and its

    E-Print Network [OSTI]

    Fokas, A. S.

    Reconstruction Algorithm for Single Photon Emission Computed Tomography and its Numerical Emission Tomography and of Single Photon Emission Computed Tomography are not only two of the most measured by the usual computed tomography. Thus the basic mathematical problem in SPECT is to determine

  14. Positron emission tomography wrist detector

    DOE Patents [OSTI]

    Schlyer, David J. (Bellport, NY); O'Connor, Paul (Bellport, NY); Woody, Craig (Setauket, NY); Junnarkar, Sachin Shrirang (Sound Beach, NY); Radeka, Veljko (Bellport, NY); Vaska, Paul (Sound Beach, NY); Pratte, Jean-Francois (Stony Brook, NY)

    2006-08-15T23:59:59.000Z

    A method of serially transferring annihilation information in a compact positron emission tomography (PET) scanner includes generating a time signal representing a time-of-occurrence of an annihilation event, generating an address signal representing a channel detecting the annihilation event, and generating a channel signal including the time and address signals. The method also includes generating a composite signal including the channel signal and another similarly generated channel signal concerning another annihilation event. An apparatus that serially transfers annihilation information includes a time signal generator, address signal generator, channel signal generator, and composite signal generator. The time signal is asynchronous and the address signal is synchronous to a clock signal. A PET scanner includes a scintillation array, detection array, front-end array, and a serial encoder. The serial encoders include the time signal generator, address signal generator, channel signal generator, and composite signal generator.

  15. State tomography via weak measurements

    E-Print Network [OSTI]

    Shengjun Wu

    2013-02-01T23:59:59.000Z

    Recent work has revealed that the wave function of a pure state can be measured directly and that complementary knowledge of a quantum system can be obtained simultaneously by weak measurements. However, the original scheme applies only to pure states, and it is not efficient because most of the data are discarded by post-selection. Here, we propose tomography schemes for pure states and for mixed states via weak measurements, and our schemes are more efficient because we do not discard any data. Furthermore, we demonstrate that any matrix element of a general state can be directly read from an appropriate weak measurement. The density matrix (with all of its elements) represents all that is directly accessible from a general measurement.

  16. Collimator-free photon tomography

    DOE Patents [OSTI]

    Dilmanian, F. Avraham (Yaphank, NY); Barbour, Randall L. (Westbury, NY)

    1998-10-06T23:59:59.000Z

    A method of uncollimated single photon emission computed tomography includes administering a radioisotope to a patient for producing gamma ray photons from a source inside the patient. Emissivity of the photons is measured externally of the patient with an uncollimated gamma camera at a plurality of measurement positions surrounding the patient for obtaining corresponding energy spectrums thereat. Photon emissivity at the plurality of measurement positions is predicted using an initial prediction of an image of the source. The predicted and measured photon emissivities are compared to obtain differences therebetween. Prediction and comparison is iterated by updating the image prediction until the differences are below a threshold for obtaining a final prediction of the source image.

  17. Collimator-free photon tomography

    DOE Patents [OSTI]

    Dilmanian, F.A.; Barbour, R.L.

    1998-10-06T23:59:59.000Z

    A method of uncollimated single photon emission computed tomography includes administering a radioisotope to a patient for producing gamma ray photons from a source inside the patient. Emissivity of the photons is measured externally of the patient with an uncollimated gamma camera at a plurality of measurement positions surrounding the patient for obtaining corresponding energy spectrums thereat. Photon emissivity at the plurality of measurement positions is predicted using an initial prediction of an image of the source. The predicted and measured photon emissivities are compared to obtain differences therebetween. Prediction and comparison is iterated by updating the image prediction until the differences are below a threshold for obtaining a final prediction of the source image. 6 figs.

  18. Organic vapor jet printing system

    DOE Patents [OSTI]

    Forrest, Stephen R

    2012-10-23T23:59:59.000Z

    An organic vapor jet printing system includes a pump for increasing the pressure of an organic flux.

  19. Part removal of 3D printed parts

    E-Print Network [OSTI]

    Peña Doll, Mateo

    2014-01-01T23:59:59.000Z

    An experimental study was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D printing using a patent ...

  20. X-ray tomography system to investigate granular materials during mechanical loading

    E-Print Network [OSTI]

    Athanassiadis, Athanasios G; Sidky, Emil; Pelizzari, Charles; Pan, Xiaochuan; Jaeger, Heinrich M

    2014-01-01T23:59:59.000Z

    We integrate a small and portable medical x-ray device with mechanical testing equipment to enable in-situ, non-invasive measurements of a granular material's response to mechanical loading. We employ an orthopedic C-arm as the x-ray source and detector to image samples mounted in the materials tester. We discuss the design of a custom rotation stage, which allows for sample rotation and tomographic reconstruction under applied compressive stress. We then discuss the calibration of the system for 3d computed tomography, as well as the subsequent image reconstruction process. Using this system to reconstruct packings of 3d-printed particles, we resolve packing features with 0.52 mm resolution in a (60 mm)$^3$ field of view. By analyzing the performance bounds of the system, we demonstrate that the reconstructions exhibit only moderate noise.

  1. X-ray tomography system to investigate granular materials during mechanical loading

    E-Print Network [OSTI]

    Athanasios G Athanassiadis; Patrick J. La Rivière; Emil Sidky; Charles Pelizzari; Xiaochuan Pan; Heinrich M. Jaeger

    2014-07-28T23:59:59.000Z

    We integrate a small and portable medical x-ray device with mechanical testing equipment to enable in-situ, non-invasive measurements of a granular material's response to mechanical loading. We employ an orthopedic C-arm as the x-ray source and detector to image samples mounted in the materials tester. We discuss the design of a custom rotation stage, which allows for sample rotation and tomographic reconstruction under applied compressive stress. We then discuss the calibration of the system for 3d computed tomography, as well as the subsequent image reconstruction process. Using this system to reconstruct packings of 3d-printed particles, we resolve packing features with 0.52 mm resolution in a (60 mm)$^3$ field of view. By analyzing the performance bounds of the system, we demonstrate that the reconstructions exhibit only moderate noise.

  2. X-ray tomography system to investigate granular materials during mechanical loading

    SciTech Connect (OSTI)

    Athanassiadis, Athanasios G. [James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637 (United States); Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); La Rivière, Patrick J.; Sidky, Emil; Pan, Xiaochuan [Department of Radiology, The University of Chicago, Chicago, Illinois 60637 (United States); Pelizzari, Charles [Department of Radiation and Cellular Oncology, The University of Chicago, Chicago, Illinois 60637 (United States); Jaeger, Heinrich M., E-mail: h-jaeger@uchicago.edu [James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637 (United States)

    2014-08-15T23:59:59.000Z

    We integrate a small and portable medical x-ray device with mechanical testing equipment to enable in situ, non-invasive measurements of a granular material's response to mechanical loading. We employ an orthopedic C-arm as the x-ray source and detector to image samples mounted in the materials tester. We discuss the design of a custom rotation stage, which allows for sample rotation and tomographic reconstruction under applied compressive stress. We then discuss the calibration of the system for 3D computed tomography, as well as the subsequent image reconstruction process. Using this system to reconstruct packings of 3D-printed particles, we resolve packing features with 0.52?mm resolution in a (60 mm){sup 3} field of view. By analyzing the performance bounds of the system, we demonstrate that the reconstructions exhibit only moderate noise.

  3. Binary Tomography with Deblurring Stefan Weber1

    E-Print Network [OSTI]

    Schnörr, Christoph

    Binary Tomography with Deblurring Stefan Weber1 , Thomas Sch¨ule1,3 , Attila Kuba2 , and Christoph-Verlag Berlin Heidelberg 2006 #12;376 S. Weber et al. quality of the reconstructed images. The correction

  4. ECG-edit function in multidetector-row computed tomography coronary arteriography for patients with arrhythmias.

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    multi- detector row computed tomography for the evaluationwith multislice computed tomography. J Am Coll Cardiol 2001;multi- detector-row computed tomography: Results in 102

  5. Reduction in downstream test utilization following introduction of coronary computed tomography in a cardiology practice

    E-Print Network [OSTI]

    Karlsberg, Ronald P.; Budoff, Matthew J.; Thomson, Louise E.; Friedman, John D.; Berman, Daniel S.

    2010-01-01T23:59:59.000Z

    introduction of coronary computed tomography in a cardiologyphoton emission computed tomography (SPECT) myocardialÁ Multi-slice computed tomography Á Multi-detector computed

  6. Potentially Low Cost Solution to Extend Use of Early Generation Computed Tomography

    E-Print Network [OSTI]

    Tonna, Joseph E; Balanoff, Amy M; Lewin, Matthew R; Saandari, Namjilmaa; Wintermark, Max

    2010-01-01T23:59:59.000Z

    of Early Generation Computed Tomography Joseph E. Tonna, MD*two- dimensional (2D) computed tomography (CT) images. ThisWhile many modern computed tomography (CT) scanners contain

  7. Sensitivity of Emergency Bedside Ultrasound to Detect Hydronephrosis in Patients with Computed Tomography-proven Stones

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

    DJ, Hall EJ. Computed tomography-an increasing source ofin Patients with Computed Tomography-proven Stones JeffNon-contrast computed tomography (CT) is widely regarded as

  8. Verrucous carcinoma of the foot affecting the bone: Utility of the computed tomography scanner

    E-Print Network [OSTI]

    García-Gavín, J; González-Vilas, D; Rodríguez-Pazos, L; Sánchez-Aguilar, D; Toribio, J

    2010-01-01T23:59:59.000Z

    Frassica FJ, Fishman EK. Computed tomography of the bones ofbone: Utility of the computed tomography scanner J García-of bone invasion. Computed tomography (CT) showed a lytic

  9. Adherence to Head Computed Tomography Guidelines in the Setting of Mild Traumatic Brain Injury

    E-Print Network [OSTI]

    Jones, Landon A; Morley, Eric J; Grant, William D; Wojcik, Susan M; Paolo, William F

    2014-01-01T23:59:59.000Z

    Adherence to Head Computed Tomography Guidelines for Mildal Adherence to Head Computed Tomography Guidelines system,non-contrast head computed tomography (CT) in patients with

  10. Evaluation of a EMCCD detector for emission-transmission computed tomography

    E-Print Network [OSTI]

    Teo, B K; Shestakova, I; Sun, M; Barber, W C; Nagarkar, V V; Hasegawa, B H

    2006-01-01T23:59:59.000Z

    emission-transmission computed-tomography imaging system,”for Emission-Transmission Computed Tomography B. K. Teo, I.sion-transmission computed tomography. The detector has an

  11. Characterization of Biological Effects of Computed Tomography by Assessing the DNA Damage Response

    E-Print Network [OSTI]

    Elgart, Shona Robin

    2014-01-01T23:59:59.000Z

    Brenner DJ, Hall EJ. Computed Tomography - An IncreasingSmith-Bindman R. Is Computed Tomography Safe? New Englandof X-ray Trends: Computed Tomography 2005 – 06 Preliminary

  12. Emergency Department Frequent User: Pilot Study of Intensive Case Management to Reduce Visits and Computed Tomography

    E-Print Network [OSTI]

    Grover, Casey A; Close, Reb JH; Villarreal, Kathy; Goldman, Lee M

    2010-01-01T23:59:59.000Z

    33. Brenner DJ, Hall EJ. Computed tomography – an increasingReduce Visits and Computed Tomography Casey A. Grover* Rebof total images in all computed tomography (CT) scans during

  13. Yield and Clinical Predictors of Thoracic Spine Injury from Chest Computed Tomography for Blunt Trauma

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

    Injury from Chest Computed Tomography for Blunt Trauma Markthe use of chest computed tomography (CT), (CCT) in bluntinjury. 6,7 Chest computed tomography (CCT) evaluation for

  14. Coronary computed tomography angiography predicts subsequent cardiac outcome events: results of the Visipaque CCTA registry study.

    E-Print Network [OSTI]

    Budoff, MJ; Bloom, SA; Chow, BJ; Chandler, AB; Cole, JH

    2015-01-01T23:59:59.000Z

    Event CCTA= Coronary computed tomography angiography; MACE=CONFIRM (COroNary computed tomography angiography evaluationcalcium scoring and computed tomography angiography: current

  15. Statistical Estimation of Quantum Tomography Protocols Quality

    E-Print Network [OSTI]

    Yu. I. Bogdanov; G. Brida; M. Genovese; S. P. Kulik; E. V. Moreva; A. P. Shurupov

    2010-02-18T23:59:59.000Z

    A novel operational method for estimating the efficiency of quantum state tomography protocols is suggested. It is based on a-priori estimation of the quality of an arbitrary protocol by means of universal asymptotic fidelity distribution and condition number, which takes minimal value for better protocol. We prove the adequacy of the method both with numerical modeling and through the experimental realization of several practically important protocols of quantum state tomography.

  16. Intense pulsed light sintering of copper nanoink for printed electronics

    E-Print Network [OSTI]

    Kim, Hak-Sung; Dhage, Sanjay R.; Shim, Dong-Eun; Hahn, H. Thomas

    2009-01-01T23:59:59.000Z

    copper nanoink for printed electronics Hak-Sung Kim · Sanjay1 Introduction Printed electronics techniques such as inkjetcomponents of printed electronics are conducting lines and ?

  17. Pennsylvania Company Develops Solar Cell Printing Technology

    Broader source: Energy.gov [DOE]

    The technology uses Plextronics’ conductive inks that can be printed by manufacturers worldwide to make solar cells, potentially as easily as they might print a newspaper.

  18. Structural Integration of Silicon Solar Cells and Lithium-ion Batteries Using Printed Electronics

    E-Print Network [OSTI]

    Kang, Jin Sung

    2012-01-01T23:59:59.000Z

    4 Inkjet Printed Electronics Using Copper Nanoparticle29 Inkjet Printed Electronics For Multifunctional Compositenanocrystals toward printed electronics,” Nanotechnology,

  19. F]-Fluorodeoxyglucose Positron Emission Tomography and Computed Tomography in Response

    E-Print Network [OSTI]

    Hemminki, Akseli

    , and [18 F]-FDG-uptake was quantitated with small animal PET/CT. Second, we describe a retrospective molecules. Here we investigated the prognostic utility of CT and [18 F]-fluor- odeoxyglucose (FDG) positron[18 F]-Fluorodeoxyglucose Positron Emission Tomography and Computed Tomography in Response

  20. Omni-tomography / Multi-tomography Integrating Multiple Modalities for Simultaneous Imaging

    E-Print Network [OSTI]

    Wang, Ge

    registration and combined acquisition on PET-CT, PET-MRI and other hybrid scanners. There are intrinsic relevant imaging mechanisms such as CT, MRI, PET, SPECT, US, optical, and possibly more. In this paper applications of omni-tomography. Key Words: Tomography, CT, MRI, PET, SPECT, US imaging, optical imaging

  1. E-print Network: Research Communications for Scientists and Engineers

    Office of Scientific and Technical Information (OSTI)

    E-print Web Log E-print Network E-print Network About Search Browse by Discipline Find Scientific Societies Receive E-print Alerts Contact Us Help Home Site Map OSTI DOE For...

  2. Scanning microwave-induced thermoacoustic tomography: Signal, resolution, and contrast

    E-Print Network [OSTI]

    Wang, Lihong

    Scanning microwave-induced thermoacoustic tomography: Signal, resolution, and contrast Geng Ku Scanning thermoacoustic tomography was explored in the microwave region of the electromagnetic spectrum ultrasonic transducer detected the time-resolved thermoacoustic signals. Based on the microwave

  3. Photoacoustic and thermoacoustic tomography: system development for biomedical applications 

    E-Print Network [OSTI]

    Ku, Geng

    2006-04-12T23:59:59.000Z

    Photoacoustic tomography (PAT), as well as thermoacoustic tomography (TAT), utilize electromagnetic radiation in its visible, near infrared, microwave, and radiofrequency forms, respectively, to induce acoustic waves in biological tissues...

  4. 3D Printing Prof. Hank Dietz

    E-Print Network [OSTI]

    Dietz, Henry G. "Hank"

    3D Printing Prof. Hank Dietz TCMS, March 14, 2014 University of Kentucky Electrical & Computer #12;3D With Glue Layers of paper: printed with glue & cut Layers of powder: printed with glue Can also be printed in full color #12;3D Extrusion (RepRaps) FDM: Fused Deposition Modeling FFF: Fused

  5. This document is produced by the University Print Management Team

    E-Print Network [OSTI]

    Li, Yi

    University Print Management Team. A Guide To Best Practice Printing #12;This document is produced by the University Print Management Team (UPMT) to raise awareness of printing on campus, and to demonstrate how we managing the print process to reduce cost, waste and to improve the functionality and availability of print

  6. alteration print gap: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Elihu, David Morad 2006-01-01 2 Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jrmie Dumas Computer Technologies and Information Sciences Websites Summary:...

  7. Evaluation of Turbine Blades Using Computed Tomography

    E-Print Network [OSTI]

    C. Muralidhar; S. N. Lukose; M. P. Subramanian

    2006-01-01T23:59:59.000Z

    Turbine blades are high value castings having complex internal geometry. Computed Tomography has been employed on Turbine blades for finding out defects and internal details. The wall thickness, rib thickness and radius of curvature are measured from the CT slices. The discontinuities including blockages of cooling passages in the cast material can be detected. 3D visualization of the turbine blade provides in extracting its internal features including inaccessible areas nondestructively, which is not possible through conventional NDE methods. The salient features for evaluation of turbine blades using Tomography are brought out.

  8. Seismic Tomography: Definitions Lapo Boschi (lapo@erdw.ethz.ch)

    E-Print Network [OSTI]

    Boschi, Lapo

    Tomography Seismic tomography is the science of interpreting seismic measurements (seismograms) to derive; that is to say, solve the seismological inverse problem. Seismic data and their interpretation Seismic stationsSeismic Tomography: Definitions Lapo Boschi (lapo@erdw.ethz.ch) September 14, 2009 Seismic

  9. PHOTOACOUSTIC AND THERMOACOUSTIC TOMOGRAPHY WITH AN UNCERTAIN WAVE SPEED

    E-Print Network [OSTI]

    Uhlmann, Gunther

    PHOTOACOUSTIC AND THERMOACOUSTIC TOMOGRAPHY WITH AN UNCERTAIN WAVE SPEED LAURI OKSANEN AND GUNTHER UHLMANN Abstract. We consider the mathematical model of photoacoustic and thermoacoustic tomography. In Thermoacoustic tomography (TAT), see e.g. [8], low frequency microwaves, with wavelengths on the order of 1m

  10. THERMOACOUSTIC TOMOGRAPHY WITH AN ARBITRARY ELLIPTIC OPERATOR MICHAEL V. KLIBANOV

    E-Print Network [OSTI]

    1 THERMOACOUSTIC TOMOGRAPHY WITH AN ARBITRARY ELLIPTIC OPERATOR MICHAEL V. KLIBANOV Abstract. Thermoacoustic tomography is a term for the inverse problem of determining of one of initial conditions. In thermoacoustic tomography (TAT) a short radio frequency pulse is sent in a biological tissue [1, 9]. Some energy

  11. Application of a nudging technique to thermoacoustic tomography

    E-Print Network [OSTI]

    Boyer, Edmond

    Application of a nudging technique to thermoacoustic tomography Xavier Bonnefond and Sébastien Marinesque December 3, 2011 Abstract ThermoAcoustic Tomography (TAT) is a promising, non invasive, medical inversion method. 1 Introduction ThermoAcoustic Tomography (TAT) is a hybrid imaging technique that uses

  12. Review of Parallel Computing Techniques for Computed Tomography Image Reconstruction

    E-Print Network [OSTI]

    Wang, Ge

    Review of Parallel Computing Techniques for Computed Tomography Image Reconstruction Jun Ni1, 3 representative analytic and iterative reconstruction algorithms for X-ray computed tomography (CT), we address X-ray computed tomography (CT) is one of the most important non-invasive medical imaging techniques

  13. Shape Filtering for False Positive Reduction at Computed Tomography Colonography

    E-Print Network [OSTI]

    Whelan, Paul F.

    Shape Filtering for False Positive Reduction at Computed Tomography Colonography Abhilash A) in the automatic detection of colorectal polyps at Computer Aided Detection in Computed Tomography Colonography of the images of the colon obtained using a Computed Tomography (CT) examination of the abdominal region

  14. Edge-Localized Iterative Reconstruction for Computed Tomography

    E-Print Network [OSTI]

    1 Edge-Localized Iterative Reconstruction for Computed Tomography Zhou Yu Student Member, IEEE) can greatly improve the quality of computed tomography (CT) images. In particular, MBR can recover at significantly reduced computational cost. Index Terms--Computed tomography, model based reconstruc- tion

  15. Roadmap: Radiologic Imaging Sciences -Computed Tomography (with AAS Radiologic Technology) -

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Radiologic Imaging Sciences - Computed Tomography (with AAS Radiologic Technology] Note: Admission to the program is required to enroll in RIS courses RIS 34084 Computed Tomography and Magnetic Resonance Imaging Sectional Anatomy I 2 C RIS 44021 Patient Management in Computed Tomography 2

  16. Edge-Localized Iterative Reconstruction for Computed Tomography

    E-Print Network [OSTI]

    Edge-Localized Iterative Reconstruction for Computed Tomography Zhou Yu Student Member, IEEE, Jean the quality of computed tomography (CT) images. In particular, MBR can recover fine details and small features reduced computational cost. Index Terms--Computed tomography, model based reconstruc- tion, coordinate

  17. Kinetic Model for Motion Compensation in Computed Tomography

    E-Print Network [OSTI]

    1 Kinetic Model for Motion Compensation in Computed Tomography Zhou Yu, Jean-Baptiste Thibault- gorithms have recently been applied to computed tomography and demonstrated superior image quality. MBIR to computed tomography and demonstrated superior image quality performance [1], [2], [3]. These methods

  18. Proton Computed Tomography and Constructing Tracker Boards Gatlin Bredeson

    E-Print Network [OSTI]

    Belanger, David P.

    1 ABSTRACT Proton Computed Tomography and Constructing Tracker Boards By Gatlin Bredeson Scientists tomography (xCT) with proton computed tomography (pCT). During a CT scan, protons pass through a phantom University to build tracker boards to assist in creating a system that seeks to replace X-ray computed

  19. Global transition zone tomography Jeroen Ritsema1

    E-Print Network [OSTI]

    Ritsema, Jeroen

    Global transition zone tomography Jeroen Ritsema1 and Hendrik Jan van Heijst Seismological on accurate models of seismic velocity variation in the upper mantle transition zone (400­1000 km depth. Such data provide new global transition zone constraints. We combined more than a million measurements

  20. Reconstruction in tomography with diffracting sources

    E-Print Network [OSTI]

    Xu, Yuan

    2005-02-17T23:59:59.000Z

    Homogeneous Model . . . . . . . . . . . . . . . . . . . 22 III LIMITED-VIEW THERMOACOUSTIC TOMOGRAPHY1 . . . 24 A. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . 24 1. Analysis of Singularities in Circular Radon Trans- form and Limited-view TAT... . . . . . . . . . . . . . . 26 a. Circular Radon Transform . . . . . . . . . . . . . 26 b. TAT . . . . . . . . . . . . . . . . . . . . . . . . . 27 c. Reconstruction Methods . . . . . . . . . . . . . . 30 2. Numerical Implementation . . . . . . . . . . . . . . . 35 viii CHAPTER...

  1. Single-Shot Quantum Process Tomography

    E-Print Network [OSTI]

    Abhishek Shukla; T. S. Mahesh

    2014-05-27T23:59:59.000Z

    The standard procedure for quantum process tomography (QPT) involves applying the quantum process on a system initialized in each of a complete set of orthonormal states. The corresponding outputs are then characterized by quantum state tomography (QST), which itself requires the measurement of non-commuting observables realized by independent experiments on identically prepared system states. Thus QPT procedure demands a number of independent measurements, and moreover, this number increases rapidly with the size of the system. However, the total number of independent measurements can be greatly reduced with the availability of ancilla qubits. Ancilla assisted process tomography (AAPT) has earlier been shown to require a single QST of system-ancilla space. Ancilla assisted quantum state tomography (AAQST) has also been shown to perform QST in a single measurement. Here we combine AAPT with AAQST to realize a `single-shot QPT' (SSPT), a procedure to characterize a general quantum process in a single collective measurement of a set of commuting observables. We demonstrate experimental SSPT by characterizing several single-qubit processes using a three-qubit NMR quantum register. Furthermore, using the SSPT procedure we experimentally characterize the twirling process and compare the results with theory.

  2. INTERNSHIP AGREEMENT (Please Print)

    E-Print Network [OSTI]

    Bogaerts, Steven

    Rev. 5/12 INTERNSHIP AGREEMENT (Please Print) STUDENT MUST HAVE A GPA OF 2.0+ AND A MINIMUM OF 64 COMPLETED CREDIT HOURS TO REGISTER FOR AN INTERNSHIP. ALL INTERNSHIPS DONE FOR CREDIT ARE PASS/FAIL. A MAXIMUM OF 10 SEMESTER HOURS OF INTERNSHIP CREDIT IS POSSIBLE. THROUGH A COMBINATION OF INTERNSHIPS

  3. Printed Optics: 3D Printing of Embedded Optical Elements for Interactive Devices

    E-Print Network [OSTI]

    Poupyrev, Ivan

    Printed Optics: 3D Printing of Embedded Optical Elements for Interactive Devices Karl D.D. Willis1 d Figure 1: Custom optical elements are fabricated with 3D printing and embedded in interactive), and embedded optoelectronics (d). ABSTRACT We present an approach to 3D printing custom optical ele- ments

  4. The Relationship between Organ Dose and Patients Size in Multidetector Computed Tomography (MDCT) Scans Utilizing Tube Current Modulation (TCM)

    E-Print Network [OSTI]

    Khatonabadi, Maryam

    2013-01-01T23:59:59.000Z

    Dose Reduction With Chest Computed Tomography Using AdaptiveDose reduction in computed tomography by attenuation-baseddose from cardiac computed tomography before and after

  5. Comments on “Sensitivity of Emergency Bedside Ultrasound to Detect Hydronephrosis in Patients with Computed Tomography-proven Stones”

    E-Print Network [OSTI]

    K?z?lca, Özgür; Oztek, Alp; Senol, Utku

    2014-01-01T23:59:59.000Z

    al. Ultrasonography versus computed tomography for suspectedin Patients with Computed Tomography-proven Stones” Özgürin Patients with Computed Tomography-proven Stones. West J

  6. Usefulness of Computed Tomography Perfusion in Treatment of an Acute Stroke Patient with Unknown Time of Symptom Onset

    E-Print Network [OSTI]

    Fesmire, Francis M; England, Bryan S; Shell, Jared S; Devlin, Thomas G; Buchheit, Ron C

    2014-01-01T23:59:59.000Z

    ischemic stroke using computed tomography perfusion-derivedUsefulness of Computed Tomography Perfusion in Treatment oftime of symptom onset. Computed tomography angiogram (CTA)

  7. Abnormal Arterial Blood Gas and Lactate Levels Do Not Alter Disposition in Adult Blunt Trauma Patients after Early Computed Tomography

    E-Print Network [OSTI]

    Vohra, Taher; Paxton, James

    2013-01-01T23:59:59.000Z

    Patients after Early Computed Tomography Taher Vohra, MDwho also receive computed tomographies (CT) of the chest,cross-sectional computed tomography (CT) of the chest,

  8. Reply to Comments Regarding “Sensitivity of Emergency Bedside Ultrasound to Detect Hydronephrosis in Patients with Computed Tomography-proven Stones”

    E-Print Network [OSTI]

    Riddell, Jeff; Swadron, Stuart

    2014-01-01T23:59:59.000Z

    al. Ultrasonography versus computed tomography for suspectedin Patients with Computed Tomography-proven Stones” Özgürin Patients with Computed Tomography-proven Stones. West J

  9. A Novel Immunofluorescent Computed Tomography (ICT) Method to Localise and Quantify Multiple Antigens in Large Tissue Volumes at High Resolution

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    Immunofluorescent Computed Tomography Figure 1. IterativeImmunofluorescent Computed Tomography 31. Freund I, DeutschNovel Immunofluorescent Computed Tomography (ICT) Method to

  10. THE ATTENUATED RADON TRANSFORM: APPLICATION TO SINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY IN THE PRESENCE OF A VARIABLE ATTENUATING MEDIUM

    E-Print Network [OSTI]

    Gullberg, Grant T.

    2013-01-01T23:59:59.000Z

    PHOTON EMISSION COMPUTED TOMOGRAPHY IN THE PRESENCE OF APHOTON EMISSION COMPUTED TOMOGRAPHY IN THE PRESENCE OF APHOTON EMISSION COMPUTED TOMOGRAPHY IN THE PRESENCE OF A

  11. Automated simulation of areal bone mineral density assessment in the distal radius from high-resolution peripheral quantitative computed tomography

    E-Print Network [OSTI]

    Burghardt, A. J.; Kazakia, G. J.; Link, T. M.; Majumdar, S.

    2009-01-01T23:59:59.000Z

    quantitative computed tomography A. J. Burghardt & G. J.2017–2024 Micro-computed tomography has become an importantperipheral quantitative computed tomography (HR-pQCT) is a

  12. The Relationship between Organ Dose and Patients Size in Multidetector Computed Tomography (MDCT) Scans Utilizing Tube Current Modulation (TCM)

    E-Print Network [OSTI]

    Khatonabadi, Maryam

    2013-01-01T23:59:59.000Z

    D. and E. Hall, Computed tomography - An increasing source7430): p. 19. FDA, Computed Tomography (CT). Food and Drugtransmission x-ray computed tomography. Med Phys, 1981. 8(

  13. Process tomography for unitary quantum channels

    SciTech Connect (OSTI)

    Gutoski, Gus [Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5 (Canada)] [Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5 (Canada); Johnston, Nathaniel [Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada)] [Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada)

    2014-03-15T23:59:59.000Z

    We study the number of measurements required for quantum process tomography under prior information, such as a promise that the unknown channel is unitary. We introduce the notion of an interactive observable and we show that any unitary channel acting on a d-level quantum system can be uniquely identified among all other channels (unitary or otherwise) with only O(d{sup 2}) interactive observables, as opposed to the O(d{sup 4}) required for tomography of arbitrary channels. This result generalizes to the problem of identifying channels with at most q Kraus operators, and slight improvements can be obtained if we wish to identify such a channel only among unital channels or among other channels with q Kraus operators. These results are proven via explicit construction of large subspaces of Hermitian matrices with various conditions on rank, eigenvalues, and partial trace. Our constructions are built upon various forms of totally nonsingular matrices.

  14. Bachelor of Science, Radiologic Sciences, Computed Tomography Emphasis, 2014-2015 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Bachelor of Science, Radiologic Sciences, Computed Tomography Emphasis, 2014-2015 Name ID# Date RADSCI 450 Principles of Computed Tomography RADSCI 450L Principles of Computed Tomography Lab RADSCI 451 Procedural Case Studies in Computed Tomography RADSCI 455 Clinical Experience in Computed Tomography 1 3 1 3

  15. Bachelor of Science, Radiologic Sciences, Computed Tomography Emphasis, 2013-2014 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Bachelor of Science, Radiologic Sciences, Computed Tomography Emphasis, 2013-2014 Name ID# Date RADSCI 450 Principles of Computed Tomography RADSCI 450L Principles of Computed Tomography Lab RADSCI 451 Procedural Case Studies in Computed Tomography RADSCI 455 Clinical Experience in Computed Tomography 1 3 1 3

  16. Lung Nodule Detection in Screening Computed Tomography

    E-Print Network [OSTI]

    Gori, I; Cerello, P; Cheran, S C; De Nunzio, G; Fantacci, M E; Kasae, P; Masala, G L; Pérez-Martínez, A; Retico, A

    2007-01-01T23:59:59.000Z

    A computer-aided detection (CAD) system for the identification of pulmonary nodules in low-dose multi-detector helical Computed Tomography (CT) images with 1.25 mm slice thickness is presented. The basic modules of our lung-CAD system, a dot-enhancement filter for nodule candidate selection and a neural classifier for false-positive finding reduction, are described. The results obtained on the collected database of lung CT scans are discussed.

  17. Thermoacoustic tomography arising in brain imaging

    E-Print Network [OSTI]

    Stefanov, Plamen

    2010-01-01T23:59:59.000Z

    We study the mathematical model of thermoacoustic and photoacoustic tomography when the sound speed has a jump across a smooth surface. This models the change of the sound speed in the skull when trying to image the human brain. We derive an explicit inversion formula in the form of a convergent Neumann series under the assumptions that all singularities from the support of the source reach the boundary.

  18. Thermoacoustic tomography arising in brain imaging

    E-Print Network [OSTI]

    Plamen Stefanov; Gunther Uhlmann

    2010-09-09T23:59:59.000Z

    We study the mathematical model of thermoacoustic and photoacoustic tomography when the sound speed has a jump across a smooth surface. This models the change of the sound speed in the skull when trying to image the human brain. We derive an explicit inversion formula in the form of a convergent Neumann series under the assumptions that all singularities from the support of the source reach the boundary.

  19. Thermoacoustic tomography with variable sound speed

    E-Print Network [OSTI]

    Stefanov, Plamen

    2009-01-01T23:59:59.000Z

    We study the mathematical model of thermoacoustic tomography in media with a variable speed for a fixed time interval, greater than the diameter of the domain. In case of measurements on the whole boundary, we give an explicit solution in terms of a Neumann series expansion. We give necessary and sufficient conditions for uniqueness and stability when the measurements are taken on a part of the boundary.

  20. Thermoacoustic tomography with variable sound speed

    E-Print Network [OSTI]

    Plamen Stefanov; Gunther Uhlmann

    2009-05-30T23:59:59.000Z

    We study the mathematical model of thermoacoustic tomography in media with a variable speed for a fixed time interval, greater than the diameter of the domain. In case of measurements on the whole boundary, we give an explicit solution in terms of a Neumann series expansion. We give necessary and sufficient conditions for uniqueness and stability when the measurements are taken on a part of the boundary.

  1. Tomography and spectroscopy as quantum computations

    E-Print Network [OSTI]

    Cesar Miquel; Juan Pablo Paz; Marcos Saraceno; Emmanuel Knill; Raymond Laflamme; Camille Negrevergne

    2001-09-14T23:59:59.000Z

    Determining the state of a system and measuring properties of its evolution are two of the most important tasks a physicist faces. For the first purpose one can use tomography, a method that after subjecting the system to a number of experiments determines all independent elements of the density matrix. For the second task, one can resort to spectroscopy, a set of techniques used to determine the spectrum of eigenvalues of the evolution operator. In this letter, we show that tomography and spectroscopy can be naturally interpreted as dual forms of quantum computation. We show how to adapt the simplest case of the well-known phase estimation quantum algorithm to perform both tasks, giving it a natural interpretation as a simulated scattering experiment. We show how this algorithm can be used to implement an interesting form of tomography by performing a direct measurement of the Wigner function of a quantum system. We present results of such measurements performed on a system of three qubits using liquid state NMR quantum computation techniques in a sample of trichloroethylene. Remarkable analogies with other experiments are discussed.

  2. Processing a printed wiring board by single bath electrodeposition

    DOE Patents [OSTI]

    Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

    2010-12-07T23:59:59.000Z

    A method of processing a printed wiring board. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from a bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

  3. Processing A Printed Wiring Board By Single Bath Electrodeposition

    DOE Patents [OSTI]

    Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

    2003-04-15T23:59:59.000Z

    A method of processing a printed wiring board by single bath electrodeposition. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from the bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

  4. The Makerbot: Desktop 3D printing

    E-Print Network [OSTI]

    Roughan, Matthew

    The Makerbot: Desktop 3D printing Matthew Roughan School of Mathematical Sciences matthew is Lots of maths hidden in something like 3D printing Geometry and Linear algebra ++ Same math used

  5. MPRINT: VAX printing made simple

    SciTech Connect (OSTI)

    Worlton, T.

    1994-08-01T23:59:59.000Z

    Users with stand-alone personal computers and personal printers usually find printing simple, but on a VAX computer or VAX cluster there may be many printers of different types located in different areas. The print queues set up for these printers may require different form qualifiers and may not all be able to print all documents. This article describes the basic steps a VAX system manager should take in setting up and managing print queues on a VAX and tells how to access these queues from a VAX, Unix, Macintosh, or DOS Computer. It gives a basic overview, but includes several helpful items that are obscure or completely undocumented. Following this overview, there is a description of a Fortran program, MPRINT, written to simplify printing for users. The MPRINT program simplifies the choice of printers and print forms for users of VAX print queues by allowing them to select from a one line per queue menu. The menu includes queue descriptions and only lists printers which can correctly print the specified file. MPRINT selects the correct form to use based on file type and maximum record length of the file. MPRINT may be useful at your site, and provides examples of a number of system services. MPRINT includes routines to do a user open of a file and get information from the File and Record Access Blocks (FAB and RAB), and a routine to obtain information about print queues. There are also routines to parse a file name, detab a character buffer, and trim trailing nulls and blanks from a character string.

  6. Constrained optimization in seismic reflection tomography: an SQP ...

    E-Print Network [OSTI]

    2004-07-06T23:59:59.000Z

    Seismic reflection tomography is a method for determining a subsurface velocity model from the traveltimes of seismic waves reflecting on geological interfaces.

  7. Three-Dimensional Thermal Tomography Advances Cancer Treatment...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Three-Dimensional Thermal Tomography Advances Cancer Treatment Technology available for licensing: A 3D technique to detect early skin changes due to radiation treatment in breast...

  8. Minimally invasive diagnostic imaging using high resolution Optical Coherence Tomography

    E-Print Network [OSTI]

    Herz, Paul Richard, 1972-

    2004-01-01T23:59:59.000Z

    Advances in medical imaging have given researchers unprecedented capabilities to visualize, characterize and understand biological systems. Optical Coherence Tomography (OCT) is a high speed, high resolution imaging technique ...

  9. Printing and Scanning Instructions Printing on Savin (reserved for Job Market/RA/TA print jobs ONLY)

    E-Print Network [OSTI]

    Niebur, Ernst

    1 Printing and Scanning Instructions Printing on Savin (reserved for Job Market/RA/TA print jobs, stapling, or three holes punch, you can find them under the "Layout" tab and "Advanced". #12;2 Scanning on Savin (NOTE: scanning is Free of Charge) A feature of the new copier is the option of using it to scan

  10. A New Numerical Algorithm for Thermoacoustic and Photoacoustic Tomography with Variable Sound Speed

    E-Print Network [OSTI]

    Uhlmann, Gunther

    A New Numerical Algorithm for Thermoacoustic and Photoacoustic Tomography with Variable Sound Speed algorithm for reconstructing an unknown source in Thermoacoustic and Photoacoustic Tomography based Thermoacoustic (TAT) and Photoacoustic (PAT) Tomography are emerging medical imaging modal- ities [32, 30

  11. Reduction of radiation dose to radiosensitive organs and its tradeoff with image quality in Computed Tomography

    E-Print Network [OSTI]

    Zhang, Di

    2012-01-01T23:59:59.000Z

    helical multislice computed tomography examination. MedicalRadiation Dose in X-Ray Computed Tomography. AAPM report NO.of X-ray equipment for computed tomography. (2002). American

  12. Edge Localized Image Sharpening via Reassignment with Application to Computed Tomography

    E-Print Network [OSTI]

    Bhashyam, Srikrishna

    Edge Localized Image Sharpening via Reassignment with Application to Computed Tomography Timothy computed tomography. Practical implementations limit the amount of high frequency content. Keywords: Image enhancement, edge sharpening, computed tomography, wavelets, reassignment 1. INTRODUCTION

  13. Root-canal preparation with FlexMaster: canal shapes analysed by micro-computed tomography

    E-Print Network [OSTI]

    Hubscher, W; Barbakow, F; Peters, O A

    2003-01-01T23:59:59.000Z

    analysed by micro-computed tomography W. Hu bscher 1 , F.shapes analysed by micro-computed tomography. Internationalemploying micro-computed tomography (mCT) at a resolution of

  14. Optimizing Cone Beam Computed Tomography (CBCT) System for Image Guided Radiation Therapy

    E-Print Network [OSTI]

    Park, Chun Joo

    Four-Dimensional Cone-Beam Computed Tomography. Submitted.Four-dimensional cone-beam computed tomography and digitalFlat-panel cone-beam computed tomography for image-guided

  15. FAST MARCHING METHOD TO CORRECT FOR REFRACTION IN ULTRASOUND COMPUTED TOMOGRAPHY

    E-Print Network [OSTI]

    Mueller, Klaus

    FAST MARCHING METHOD TO CORRECT FOR REFRACTION IN ULTRASOUND COMPUTED TOMOGRAPHY Shengying Li Detection Systems ABSTRACT A significant obstacle in the advancement of Ultrasound Computed Tomography has ultrasound breast phantom. 1. INTRODUCTION Ultrasound computed tomography (UCT) has a long history

  16. Non-linear inversion modeling for Ultrasound Computer Tomography: transition from soft to hard tissues imaging

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Non-linear inversion modeling for Ultrasound Computer Tomography: transition from soft to hard Marseille cedex 20, France ABSTRACT Ultrasound Computer Tomography (UCT) is an imaging technique which has experiments. Keyword: Ultrasound Computer Tomography, Inverse Born Approximation, Elliptical Projection

  17. Feasibility and value of fully 3D Monte Carlo reconstruction in Single Photon Emission Computed Tomography

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Emission Computed Tomography (SPECT) images is degraded by physical effects, namely photon attenuation datasets are currently under investigation. Keywords : single photon emission computed tomography; Monte Emission Computed Tomography (SPECT), the qualitative and quantitative accuracy of images is degraded

  18. Contrast Enhanced Computed Tomography can predict the glycosaminoglycan content and biomechanical properties

    E-Print Network [OSTI]

    Contrast Enhanced Computed Tomography can predict the glycosaminoglycan content and biomechanical in this work is to establish the feasibility of using Contrast Enhanced Computed Tomography (CECT peripheral quantitative computed tomography (pQCT), subjected to an unconfined compressive stress relaxation

  19. In-line x-ray phase-contrast tomography and diffraction-contrast tomography study of the ferrite-cementite microstructure in steel

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    In-line x-ray phase-contrast tomography and diffraction-contrast tomography study of the ferrite;In-line X-ray phase-contrast tomography and diffraction-contrast tomography study of the ferrite embedded in a ferrite matrix of medium-carbon steel. The measurements were carried out at the material

  20. 28,183HUSEN ET AL.: TOMOGRAPHY OF SHALLOW SUBDUCTION IN CHILE Local earthquake tomography of shallow subduction in north Chile: A

    E-Print Network [OSTI]

    Boschi, Lapo

    [Graeber and Asch, 1999; C. Haberland and A. Rietbrock, Attenuation tomography in the western central Andes

  1. University of Sheffield Sustainable Print Policy 2013

    E-Print Network [OSTI]

    Martin, Stephen John

    produced, print consumables used, the number of personal printing devices on campus. 3. It applies to all screen or via projection at meetings, use of personal devices such as laptop computers or tablets. 9 printing devices whether connected to the network, connected locally via desktop computing, photocopiers

  2. PAPILLON: Designing Curved Display Surfaces With Printed Optics

    E-Print Network [OSTI]

    Poupyrev, Ivan

    . It is based on 3D printed optics, where the surface of the display is constructed as a bundle of printed light Interfaces - Graphical user interfaces; Input devices and strategies. Keywords: 3D printing, fabrication

  3. E-print Network : Main View : Deep Federated Search

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    E-print Network Search Powered By Deep Web Technologies New Search Preferences E-print Network E-print Network Skip to main content FAQ * HELP * SITE MAP * CONTACT US Home * About...

  4. Organic and Printed Electronics for Biological Microfluidic Applications

    E-Print Network [OSTI]

    Jagannathan, Lakshmi

    2012-01-01T23:59:59.000Z

    and Q. Zhang, “Printed electronics for low-cost electronicUltra-Low-Cost Printed Electronics,” Ph.D. dissertation,capability of printed electronics to make important aspects

  5. Comparison of pressure-saturation characteristics derived from computed tomography and lattice Boltzmann simulations

    E-Print Network [OSTI]

    Wildenschild, Dorthe

    Comparison of pressure-saturation characteristics derived from computed tomography and lattice), Comparison of pressure-saturation characteristics derived from computed tomography and lattice Boltzmann

  6. Business Agreements Printing & Mail Services

    E-Print Network [OSTI]

    Business Agreements Storehouse Printing & Mail Services Receiving Equipment Management Director Planning/ Resource Planning Space ManagementAccounting Services Student Business Services Education Administration Finance and Business Operations Organization Risk Management Finance & Business Operations

  7. Cryo-electron tomography of bacterial viruses

    SciTech Connect (OSTI)

    Guerrero-Ferreira, Ricardo C. [Division of Pediatric Infectious Diseases, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322 (United States)] [Division of Pediatric Infectious Diseases, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322 (United States); Wright, Elizabeth R., E-mail: erwrigh@emory.edu [Division of Pediatric Infectious Diseases, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322 (United States)

    2013-01-05T23:59:59.000Z

    Bacteriophage particles contain both simple and complex macromolecular assemblages and machines that enable them to regulate the infection process under diverse environmental conditions with a broad range of bacterial hosts. Recent developments in cryo-electron tomography (cryo-ET) make it possible to observe the interactions of bacteriophages with their host cells under native-state conditions at unprecedented resolution and in three-dimensions. This review describes the application of cryo-ET to studies of bacteriophage attachment, genome ejection, assembly and egress. Current topics of investigation and future directions in the field are also discussed.

  8. Characterizing aquifer heterogeneity using hydraulic tomography

    E-Print Network [OSTI]

    Wachter, Brian James

    2008-07-29T23:59:59.000Z

    such as sands and gravels because these materials drain the water so quickly. The K value is highly localized and only represents the portion of the aquifer in which the core was taken. When working with unconsolidated sediments, care must be taken to pack...?????. .?????.1 17 vi LIST OF FIGURES Figure 1: Map of field site and layout of wells used in study (figure modified from Engard, 2006). Figure 2: MOG setup for tomography study. Figure 3: Packed versus unpacked response in an observation well...

  9. Mathematics of Photoacoustic and Thermoacoustic Tomography

    E-Print Network [OSTI]

    Kuchment, Peter

    2009-01-01T23:59:59.000Z

    This is the manuscript of the chapter for a planned Handbook of Mathematical Methods in Imaging that surveys the mathematical models, problems, and algorithms of the Thermoacoustic (TAT) and Photoacoustic (PAT) Tomography. TAT and PAT represent probably the most developed of the several novel ``hybrid'' methods of medical imaging. These new modalities combine different physical types of waves (electromagnetic and acoustic in case of TAT and PAT) in such a way that the resolution and contrast of the resulting method are much higher than those achievable using only acoustic or electromagnetic measurements.

  10. Thermoacoustic tomography with an arbitrary elliptic operator

    E-Print Network [OSTI]

    Michael V. Klibanov

    2012-08-26T23:59:59.000Z

    Thermoacoustic tomography is a term for the inverse problem of determining of one of initial conditions of a hyperbolic equation from boundary measurements. In the past publications both stability estimates and convergent numerical methods for this problem were obtained only under some restrictive conditions imposed on the principal part of the elliptic operator. In this paper logarithmic stability estimates are obatined for an arbitrary variable principal part of that operator. Convergence of the Quasi-Reversibility Method to the exact solution is also established for this case. Both complete and incomplete data collection cases are considered.

  11. Mathematics of Photoacoustic and Thermoacoustic Tomography

    E-Print Network [OSTI]

    Peter Kuchment; Leonid Kunyansky

    2009-12-10T23:59:59.000Z

    This is the manuscript of the chapter for a planned Handbook of Mathematical Methods in Imaging that surveys the mathematical models, problems, and algorithms of the Thermoacoustic (TAT) and Photoacoustic (PAT) Tomography. TAT and PAT represent probably the most developed of the several novel ``hybrid'' methods of medical imaging. These new modalities combine different physical types of waves (electromagnetic and acoustic in case of TAT and PAT) in such a way that the resolution and contrast of the resulting method are much higher than those achievable using only acoustic or electromagnetic measurements.

  12. Momentum computed tomography of charged particles

    E-Print Network [OSTI]

    Yu, Deyang

    2013-01-01T23:59:59.000Z

    The principle of the momentum computed tomography of charged particles is presented. It may be useful for momentum spectroscopy of various beam-matter interactions, especially when very intense beams are involved. It is able to collect the shower of charged particles with the 4Pi solid angle, and suitable for measuring the overall perspective of the arbitrary momentum distribution of the outgoing charged particles induced by arbitrary beams, especially when the other techniques are invalid. The extended collisional region, the strong field approximation and the case without magnetic field are discussed.

  13. Adaptive schemes for incomplete quantum process tomography

    SciTech Connect (OSTI)

    Teo, Yong Siah [Centre for Quantum Technologies, National University of Singapore, Singapore 117543 (Singapore); NUS Graduate School for Integrative Sciences and Engineering, Singapore 117597 (Singapore); Englert, Berthold-Georg [Centre for Quantum Technologies, National University of Singapore, Singapore 117543 (Singapore); Department of Physics, National University of Singapore, Singapore 117542 (Singapore); Rehacek, Jaroslav; Hradil, Zdenek [Department of Optics, Palacky University, 17. listopadu 12, CZ-77146 Olomouc (Czech Republic)

    2011-12-15T23:59:59.000Z

    We propose an iterative algorithm for incomplete quantum process tomography with the help of quantum state estimation. The algorithm, which is based on the combined principles of maximum likelihood and maximum entropy, yields a unique estimator for an unknown quantum process when one has less than a complete set of linearly independent measurement data to specify the quantum process uniquely. We apply this iterative algorithm adaptively in various situations and so optimize the amount of resources required to estimate a quantum process with incomplete data.

  14. Scattered Neutron Tomography Based on A Neutron Transport Inverse Problem

    SciTech Connect (OSTI)

    William Charlton

    2007-07-01T23:59:59.000Z

    Neutron radiography and computed tomography are commonly used techniques to non-destructively examine materials. Tomography refers to the cross-sectional imaging of an object from either transmission or reflection data collected by illuminating the object from many different directions.

  15. Signal processing in scanning thermoacoustic tomography in biological tissues

    E-Print Network [OSTI]

    Wang, Lihong

    Signal processing in scanning thermoacoustic tomography in biological tissues Yuan Xu and Lihong V Microwave-induced thermoacoustic tomography was explored to image biological tissues. Short microwave pulses-induced thermoacoustic waves were detected with a focused ultrasonic transducer to obtain two-dimensional tomographic

  16. Microwave-induced thermoacoustic tomography: Reconstruction by synthetic aperture

    E-Print Network [OSTI]

    Wang, Lihong

    Microwave-induced thermoacoustic tomography: Reconstruction by synthetic aperture Dazi Feng, Yuan thermoacoustic signals, to which the delay-and-sum algorithm was applied for image reconstruc- tion. We greatly-induced thermoacoustic tomography based on focused transducers. Two mi- crowave sources, which had frequencies of 9 and 3

  17. Propagation Beam Consideration for 3D THz Computed Tomography

    E-Print Network [OSTI]

    Boyer, Edmond

    Propagation Beam Consideration for 3D THz Computed Tomography B. Recur, 1, J.P. Guillet, 2 I. Manek, "Refraction losses in terahertz computed tomography," Opt. Commun. 283, 2050­2055 (2010). 8. S. Nadar, H of the beam propagation is developed according to the physical properties of THz waves used in THz computed

  18. High-Resolution Computed Tomography Study of the Cranium of

    E-Print Network [OSTI]

    Allman, John M.

    High-Resolution Computed Tomography Study of the Cranium of a Fossil Anthropoid Primate of these characteristics may have important implications for brain evolution. Here computed tomography is used to examine in the evolutionary development of anthropoids did these characteristics evolve? We recently used X-ray computed

  19. Optimal control techniques for thermo-acoustic tomography Maitine Bergounioux

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . These hybrid systems use an electromagnetic pulse as an input and record ultrasound waves as an output-acoustic tomography (TAT) when the heating is realized by means of microwaves, and of photo-acoustic tomography (PAT) when optical heating is used. While in TAT waves of radio frequency range are used to trigger

  20. acquisition facilitates 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Physics Websites Summary: measurements and finally its instantiation through 3D printing, are presented. Laser scanner acquisition, reconstruction and 3D printing lend well...

  1. asce structural division: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ABSTRACT Using modular construction equipment and additive manufacturing (3D printing) techniques large-scale 3D printing have been developed and tested in earth-based...

  2. automated 3-d voxel: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: from a real-life application. 1 Introduction Recent advances in 3D printing technology have made of materials, higher printing speeds, and lower costs....

  3. Printing a Car: A Team Effort in Innovation (Text Version) |...

    Broader source: Energy.gov (indexed) [DOE]

    video Printing a Car: A Team Effort in Innovation highlighting the demonstration of 3D printing to create a working electric vehicle, live during the International Manufacturing...

  4. advanced technologies directorate: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Directorate Geosciences Websites Summary: drew media attention and articles on 3D printing, including coverage by Popular Mechanics and website on 3D printing and prototyping...

  5. assess 3d bone: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: from a real-life application. 1 Introduction Recent advances in 3D printing technology have made of materials, higher printing speeds, and lower costs....

  6. asce divisions air: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ABSTRACT Using modular construction equipment and additive manufacturing (3D printing) techniques large-scale 3D printing have been developed and tested in earth-based...

  7. applying space technology: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Directorate Geosciences Websites Summary: drew media attention and articles on 3D printing, including coverage by Popular Mechanics and website on 3D printing and prototyping...

  8. assisted laser scanner: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    pipeline Physics Websites Summary: measurements and finally its instantiation through 3D printing, are presented. Laser scanner acquisition, reconstruction and 3D printing lend...

  9. antennarius striatus shaw: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences Websites Summary: 'real' and virtual). ART Decorative Arts Lharne Shaw, 3D Printing of Relief Forms onto Ceramic Tiles 3D printing of relief forms onto ceramic...

  10. aligned single wall: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Page Topic Index 1 Printed Multilayer Superstructures of Aligned Single-Walled Carbon Materials Science Websites Summary: Printed Multilayer Superstructures of Aligned...

  11. alara center alara: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Yamamoto Printed by: Hagadone Printing Company Photo: WaikikiINTERNATIONAL PACIFIC RESEARCH CENTER APRIL 2004-MARCH 2005 REPORT SCHOOL OF OCEAN AND EARTH . . . . . . . . . . ....

  12. Dispenser Printed Zinc Microbattery with an Ionic Liquid Gel Electrolyte

    E-Print Network [OSTI]

    Ho, Christine Chihfan

    2010-01-01T23:59:59.000Z

    using dispenser printing including (a) 3D polymer molds, (b)using dispenser printing including (a) 3D polymer molds, (b)

  13. 3D Printing in 30 Seconds | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3D Printing in 30 Seconds 3D Printing in 30 Seconds Addthis An error occurred. Unable to execute Javascript. Duration :38 Topic Science & Technology...

  14. Disposable Carbon Nanotube Modified Screen-Printed Biosensor...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Carbon Nanotube Modified Screen-Printed Biosensor for Amperometric Detection of Organophosphorus Pesticides and Nerve Disposable Carbon Nanotube Modified Screen-Printed Biosensor...

  15. Dispenser Printed Zinc Microbattery with an Ionic Liquid Gel Electrolyte

    E-Print Network [OSTI]

    Ho, Christine Chihfan

    2010-01-01T23:59:59.000Z

    Ink-jet printed carbon supercapacitor electrodes on gold,Ink-jet printed carbon supercapacitor electrodes on gold,Microcapacitors Thin film supercapacitor (TFSC) research has

  16. Voltammetric Analysis of Europium at Screen-Printed Electrodes...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Voltammetric Analysis of Europium at Screen-Printed Electrodes Modified with Salicylamide Self-Assembled on Mesoporous Silica. Voltammetric Analysis of Europium at Screen-Printed...

  17. Printing | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you wantJoin us for| Department of Energy Primus Power'sPrinting

  18. Double-Difference Tomography for Sequestration MVA

    SciTech Connect (OSTI)

    Westman, Erik

    2008-12-31T23:59:59.000Z

    Analysis of synthetic data was performed to determine the most cost-effective tomographic monitoring system for a geologic carbon sequestration injection site. Double-difference tomographic inversion was performed on 125 synthetic data sets: five stages of CO2 plume growth, five seismic event regions, and five geophone arrays. Each resulting velocity model was compared quantitatively to its respective synthetic velocity model to determine an accuracy value. The results were examined to determine a relationship between cost and accuracy in monitoring, verification, and accounting applications using double-difference tomography. The geophone arrays with widely-varying geophone locations, both laterally and vertically, performed best. Additionally, double difference seismic tomography was performed using travel time data from a carbon sequestration site at the Aneth oil field in southeast Utah as part of a Department of Energy initiative on monitoring, verification, and accounting (MVA) of sequestered CO2. A total of 1,211 seismic events were recorded from a borehole array consisting of 22 geophones. Artificial velocity models were created to determine the ease with which different CO2 plume locations and sizes can be detected. Most likely because of the poor geophone arrangement, a low velocity zone in the Desert Creek reservoir can only be detected when regions of test site containing the highest ray path coverage are considered. MVA accuracy and precision may be improved through the use of a receiver array that provides more comprehensive ray path coverage.

  19. 1st World Congress on Industrial Process Tomography, Buxton, Greater Manchester 1417 April 1999. Eddy Current Tomography for Metal

    E-Print Network [OSTI]

    Hua, Yingbo

    . 451 Eddy Current Tomography for Metal Solidification Imaging Minh H. Pham* , Yingbo Hua* , Neil B of molten metal inside a pipe by eddy currents. A complete mathematical model is developed which reveals functions in multiple layered media. Keywords: eddy current tomography, electromagnetic field, numerical

  20. Roadmap: Radiologic Imaging Sciences -Computed Tomography (with certification and ATS Radiologic Technology) -

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Radiologic Imaging Sciences - Computed Tomography (with certification and ATS Radiologic 34084 Computed Tomography and Magnetic Resonance Imaging Sectional Anatomy I 2 C RIS 44021 Patient Management in Computed Tomography 2 C RIS 44025 Computed Tomography Clinical Education I 3 C RIS 44030

  1. Roadmap: Radiologic Imaging Sciences -Computed Tomography (with certification and ATS Radiologic Technology) -

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Radiologic Imaging Sciences - Computed Tomography (with certification and ATS Radiologic 34084 Computed Tomography and Magnetic Resonance Imaging Sectional Anatomy I 2 C RIS 44021 Patient Management in Computed Tomography (CT) 2 C RIS 44025 Computed Tomography (CT) Clinical Education I 3 C

  2. Flow Velocity Estimation in Optical Doppler Tomography and A Preliminary Study on Radiation Detection for Hybrid

    E-Print Network [OSTI]

    Piao, Daqing

    Tomography and A Preliminary Study on Radiation Detection for Hybrid Optical Coherence TomographyFlow Velocity Estimation in Optical Doppler Tomography and A Preliminary Study on Radiation Detection for Hybrid Optical Coherence Tomography/Scintigraphy Daqing Piao B.S., Tsinghua University, 1990 M

  3. FSU Office of Research Program in Interdisciplinary Computing (PIC) What is 3D printing?

    E-Print Network [OSTI]

    Ronquist, Fredrik

    (PIC) What is 3D printing? 3D printing is a process of making. 3D printing is distinct from traditional machining techniques, which mostly organs, meat, circuit boards and batteries. 3D printing impacts nearly every

  4. Compact conscious animal positron emission tomography scanner

    DOE Patents [OSTI]

    Schyler, David J. (Bellport, NY); O'Connor, Paul (Bellport, NY); Woody, Craig (Setauket, NY); Junnarkar, Sachin Shrirang (Sound Beach, NY); Radeka, Veljko (Bellport, NY); Vaska, Paul (Sound Beach, NY); Pratte, Jean-Francois (Stony Brook, NY); Volkow, Nora (Chevy Chase, MD)

    2006-10-24T23:59:59.000Z

    A method of serially transferring annihilation information in a compact positron emission tomography (PET) scanner includes generating a time signal for an event, generating an address signal representing a detecting channel, generating a detector channel signal including the time and address signals, and generating a composite signal including the channel signal and similarly generated signals. The composite signal includes events from detectors in a block and is serially output. An apparatus that serially transfers annihilation information from a block includes time signal generators for detectors in a block and an address and channel signal generator. The PET scanner includes a ring tomograph that mounts onto a portion of an animal, which includes opposing block pairs. Each of the blocks in a block pair includes a scintillator layer, detection array, front-end array, and a serial encoder. The serial encoder includes time signal generators and an address signal and channel signal generator.

  5. Ultra-high resolution computed tomography imaging

    DOE Patents [OSTI]

    Paulus, Michael J. (Knoxville, TN); Sari-Sarraf, Hamed (Knoxville, TN); Tobin, Jr., Kenneth William (Harriman, TN); Gleason, Shaun S. (Knoxville, TN); Thomas, Jr., Clarence E. (Knoxville, TN)

    2002-01-01T23:59:59.000Z

    A method for ultra-high resolution computed tomography imaging, comprising the steps of: focusing a high energy particle beam, for example x-rays or gamma-rays, onto a target object; acquiring a 2-dimensional projection data set representative of the target object; generating a corrected projection data set by applying a deconvolution algorithm, having an experimentally determined a transfer function, to the 2-dimensional data set; storing the corrected projection data set; incrementally rotating the target object through an angle of approximately 180.degree., and after each the incremental rotation, repeating the radiating, acquiring, generating and storing steps; and, after the rotating step, applying a cone-beam algorithm, for example a modified tomographic reconstruction algorithm, to the corrected projection data sets to generate a 3-dimensional image. The size of the spot focus of the beam is reduced to not greater than approximately 1 micron, and even to not greater than approximately 0.5 microns.

  6. Improved e-Jet Printing -TFOT Improved e-Jet Printing

    E-Print Network [OSTI]

    Rogers, John A.

    Improved e-Jet Printing - TFOT Home Sections News Articles Forums About Us Improved e-Jet Printing at the University of Illinois have developed a technology that provides higher resolution and more versatility in e-jet printing. As opposed to conventional ink-jet printers, where heat or mechanical vibrations are used

  7. Magnified Weak Lensing Cross Correlation Tomography

    SciTech Connect (OSTI)

    Ulmer, Melville P., Clowe, Douglas I.

    2010-11-30T23:59:59.000Z

    This project carried out a weak lensing tomography (WLT) measurement around rich clusters of galaxies. This project used ground based photometric redshift data combined with HST archived cluster images that provide the WLT and cluster mass modeling. The technique has already produced interesting results (Guennou et al, 2010,Astronomy & Astrophysics Vol 523, page 21, and Clowe et al, 2011 to be submitted). Guennou et al have validated that the necessary accuracy can be achieved with photometric redshifts for our purposes. Clowe et al titled "The DAFT/FADA survey. II. Tomographic weak lensing signal from 10 high redshift clusters," have shown that for the **first time** via this purely geometrical technique, which does not assume a standard rod or candle, that a cosmological constant is **required** for flat cosmologies. The intent of this project is not to produce the best constraint on the value of the dark energy equation of state, w. Rather, this project is to carry out a sustained effort of weak lensing tomography that will naturally feed into the near term Dark Energy Survey (DES) and to provide invaluable mass calibration for that project. These results will greatly advance a key cosmological method which will be applied to the top-rated ground-based project in the Astro2020 decadal survey, LSST. Weak lensing tomography is one of the key science drivers behind LSST. CO-I Clowe is on the weak lensing LSST committee, and senior scientist on this project, at FNAL James Annis, plays a leading role in the DES. This project has built on successful proposals to obtain ground-based imaging for the cluster sample. By 1 Jan, it is anticipated the project will have accumulated complete 5-color photometry on 30 (or about 1/3) of the targeted cluster sample (public webpage for the survey is available at http://cencos.oamp.fr/DAFT/ and has a current summary of the observational status of various clusters). In all, the project has now been awarded the equivalent of over 60 nights on 4-m class telescopes, which gives concrete evidence of strong community support for this project. The WLT technique is based on the dependence of the gravitational shear signal on the angular diameter distances between the observer, the lens, and the lensed galaxy to measure cosmological parameters. By taking the ratio of measured shears of galaxies with different redshifts around the same lens, one obtains a measurement of the ratios of the angular diameter distances involved. Making these observations over a large range of lenses and background galaxy redshifts will measure the history of the expansion rate of the universe. Because this is a purely geometric measurement, it is insensitive to any form of evolution of objects or the necessity to understand the physics in the early universe. Thus, WLT was identified by the Dark Energy Task Force as perhaps the best method to measure the evolution of DE. To date, however, the conjecture of the DETF has not been experimentally verified, but will be by the proposed project. The primary reason for the lack of tomography measurements is that one must have an exceptional data-set to attempt the measurement. One needs both extremely good seeing (or space observations) in order to minimize the point spread function smearing corrections on weak lensing shear measurements and deep, multi-color data, from B to z, to measure reliable photometric redshifts of the background galaxies being lensed (which are typically too faint to obtain spectroscopic redshifts). Because the entire process from multi-drizzling the HST images, and then creating shear maps, to gathering the necessary ground based observations, to generating photo-zs and then carrying out the tomography is a complicated task, until the creation of our team, nobody has taken the time to connect all the levels of expertise necessary to carry out this project based on HST archival data. Our data are being used in 2 Ph.D. theses. Kellen Murphy, at Ohio University, is using the tomography data along with simulations in a thesis expected to be completed in Jun

  8. CAN 3D PRINTING REVOLUTIONIZE GLOBAL MANUFACTURING? A DELPHI STUDY

    E-Print Network [OSTI]

    CAN 3D PRINTING REVOLUTIONIZE GLOBAL MANUFACTURING? A DELPHI STUDY ­ Master Thesis Proposal ­ BACKGROUND 3D printing (or additive manufacturing) is not an entirely new phenomenon. First introduced and president of Foxconn, calls it a nice "gimmick" and even Nick Allen, founder of 3D printing company 3D Print

  9. Thermal Neutron Computed Tomography of Soil Water and Plant Roots

    E-Print Network [OSTI]

    Leanne G. Tumlinson; Hungyuan Liu; Wendy K. Silk; Jan W. Hopmans

    2007-01-01T23:59:59.000Z

    images in the McClellan Nuclear Radiation Center tomographyPap. NCT5. McClellan Nuclear Radiation Ctr. , Univ. of1991. McClellan Nuclear Radiation Center safety analysis

  10. Advances in Inverse Transport Methods and Applications to Neutron Tomography

    E-Print Network [OSTI]

    Wu, Zeyun

    2011-02-22T23:59:59.000Z

    and postulated constraints. We illustrate our approach using some neutron-tomography model problems that are several mean-free paths thick and contain highly scattering materials. In these problems we impose reasonable constraints, similar to those...

  11. Scattered neutron tomography based on a neutron transport problem 

    E-Print Network [OSTI]

    Scipolo, Vittorio

    2005-11-01T23:59:59.000Z

    scattering objects because it does not adequately account for the scattering component of the neutron beam intensity exiting the sample. We proposed a new method of computed tomography which employs an inverse problem analysis of both the transmitted...

  12. Properties of Some Integral Transforms Arising in Tomography 

    E-Print Network [OSTI]

    Moon, Sunghwan

    2013-10-11T23:59:59.000Z

    introduce a different Radon-type transform arising in photo acoustic tomography with circular detectors, and study mathematically similar object, a toroidal Radon transform. We also consider the cone transform arising in Compton camera imaging as well...

  13. 3D optical tomography in the presence of void regions

    E-Print Network [OSTI]

    Lorenzo, Jorge Ripoll

    reconstruction scheme for optical tomography based on the equation of radiative transfer," Med. Phys. 26 1698 and F. W¨ubbeling, Mathematical Methods in Image Reconstruction (SIAM, Philadel- phia, 2001). 15. J. Sch

  14. Functional lung imaging in humans using Positron Emission Tomography

    E-Print Network [OSTI]

    Layfield, Dominick, 1971-

    2003-01-01T23:59:59.000Z

    This thesis deals with a method of functional lung imaging using Positron Emission Tomography (PET). In this technique, a radioactive tracer, nitrogen-13, is dissolved in saline solution, and injected into a peripheral ...

  15. Time-dependent seismic tomography and its application to the...

    Open Energy Info (EERE)

    geothermal area, 1996-2006 Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Time-dependent seismic tomography and its application to...

  16. Purely optical tomography : atlas-based reconstruction of brain activation

    E-Print Network [OSTI]

    Custo, Anna

    2008-01-01T23:59:59.000Z

    Diffuse Optical Tomography (DOT) is a relatively new method used to image blood volume and oxygen saturation in vivo. Because of its relatively poor spatial resolution (typically no better than 1-2 cm), DOT is increasingly ...

  17. Anatomical atlas-guided diffuse optical tomography of brain activation

    E-Print Network [OSTI]

    Custo, Anna

    We describe a neuroimaging protocol that utilizes an anatomical atlas of the human head to guide diffuse optical tomography of human brain activation. The protocol is demonstrated by imaging the hemodynamic response to ...

  18. Ultrahigh speed optical coherence tomography for ophthalmic imaging applications

    E-Print Network [OSTI]

    Liu, Jonathan Jaoshin

    2014-01-01T23:59:59.000Z

    Optical coherence tomography (OCT) is a non-contact, non-invasive, micron-scale optical imaging technology that has become a standard clinical tool in ophthalmology. Fourier domain OCT detection methods have enabled higher ...

  19. Embrittlement of RPV steels; An atom probe tomography perspective

    SciTech Connect (OSTI)

    Miller, Michael K [ORNL; Russell, Kaye F [ORNL

    2007-01-01T23:59:59.000Z

    Atom probe tomography has played a key role in the understanding of the embrittlement of neutron irradiated reactor pressure vessel steels through the atomic level characterization of the microstructure. Atom probe tomography has been used to demonstrate the importance of the post weld stress relief treatment in reducing the matrix copper content in high copper alloys, the formation of {approx}-nm-diameter copper-, nickel-, manganese- and silicon-enriched precipitates during neutron irradiation in copper containing RPV steels, and the coarsening of these precipitates during post irradiation heat treatments. Atom probe tomography has been used to detect {approx}2-nm-diameter nickel-, silicon- and manganese-enriched clusters in neutron irradiated low copper and copper free alloys. Atom probe tomography has also been used to quantify solute segregation to, and precipitation on, dislocations and grain boundaries.

  20. Microwave-induced thermoacoustic tomography: reconstruction by synthetic aperture 

    E-Print Network [OSTI]

    Feng, Dazi

    2001-01-01T23:59:59.000Z

    We have applied the synthetic-aperture method to linear-scanning microwave-induced thermoacoustic tomography in biological tissues. A non-focused ultrasonic transducer was used to receive thermoacoustic signals, to which the delay-and-sum algorithm...

  1. Spherical radon transforms and mathematical problems of thermoacoustic tomography 

    E-Print Network [OSTI]

    Ambartsoumian, Gaik

    2009-06-02T23:59:59.000Z

    including approximation theory, integral geometry, inverse problems for PDEs, etc. In Chapter I we give a brief description of thermoacoustic tomography (TAT or TCT) and introduce the SRT. In Chapter II we consider the injectivity problem for SRT. A major...

  2. Iron oxide nanoparticles as a contrast agent for thermoacoustic tomography 

    E-Print Network [OSTI]

    Keho, Aaron Lopez

    2009-06-02T23:59:59.000Z

    An exogenous contrast agent has been developed to enhance the contrast achievable in Thermoacoustic Tomography (TAT). TAT utilizes the penetration depth of microwave energy while producing high resolution images through acoustic waves. A sample...

  3. Development and application of a 4-dimensional Computed Tomography simulator

    E-Print Network [OSTI]

    Chu, Alan

    2007-01-01T23:59:59.000Z

    This thesis presents the development and application of a 4-Dimensional Computed Tomography (4D CT) simulation program. The simulation is used to understand and quantify the sources of image artifacts that arise from ...

  4. Scattered neutron tomography based on a neutron transport problem

    E-Print Network [OSTI]

    Scipolo, Vittorio

    2005-11-01T23:59:59.000Z

    scattering objects because it does not adequately account for the scattering component of the neutron beam intensity exiting the sample. We proposed a new method of computed tomography which employs an inverse problem analysis of both the transmitted...

  5. Revisiting Stopping Rules for Iterative Methods used in Emission Tomography

    E-Print Network [OSTI]

    Renaut, Rosemary

    Stopping Rules for Iterative Methods used in Emission Tomography Hongbin Guo,a, Rosemary A Renautb a Insta.guo@gmail.com (Hongbin Guo) Preprint submitted to Computerized Medical Imaging and Graphics September 28, 2010

  6. Assessment of the relationship between stenosis severity and distribution of coronary artery stenoses on multislice computed tomographic angiography and myocardial ischemia detected by single photon emission computed tomography

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    photon emission computed tomography Balaji K. Tamarappoo,of 64-slice computed tomography coronary angiography: Aphoton emission computed tomography for the prediction of

  7. Does High Body Mass Index Obviate the Need for Oral Contrast for Abdominal-Pelvic Computed Tomography in Emergency Department Patients?

    E-Print Network [OSTI]

    Harrison, Matthew Lee; Lizotte, Paul E; Holmes, Talmage M; Kenney, Phillip J; Buckner, Charles Barry; Shah, Hemendra R

    2013-01-01T23:59:59.000Z

    1. Brenner DJ, Hall EJ. Computed Tomography. An Increasingis necessary for the computed tomography diagnosis ofto read a computed tomography (CT) of the abdomen and

  8. Optimal phase for coronary interpretations and correlation of ejection fraction using late-diastole and end-diastole imaging in cardiac computed tomography angiography: implications for prospective triggering

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    of multidetector computed tomography versus echocardiog-diastole imaging in cardiac computed tomography angiography:multi- row detector computed tomography (MDCT) angiog- raphy

  9. Modeling pure methane hydrate dissociation using a numerical simulator from a novel combination of X-ray computed tomography and macroscopic data

    E-Print Network [OSTI]

    Gupta, A.

    2010-01-01T23:59:59.000Z

    Combination of X-ray Computed Tomography and Macroscopicdissociation data. X-ray computed tomography (CT) was usedobtained from x-ray computed tomography analysis combined

  10. Assessment of the relationship between stenosis severity and distribution of coronary artery stenoses on multislice computed tomographic angiography and myocardial ischemia detected by single photon emission computed tomography

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    of 64-slice computed tomography coronary angiography: Aphoton emission computed tomography for the prediction ofphoton emission computed tomography. Circu- lation 2003;107:

  11. Ultrasonic Tomography for Detecting and Locating Defects in Concrete Structures 

    E-Print Network [OSTI]

    White, Joshua

    2012-07-16T23:59:59.000Z

    acquisition has grown from single-point 3 3 evaluations to automated scanning of larger areas (Streicher et al. 2006; De La Haza et al. n.d.). The tomography system used in this proposed research belongs to this family of phased-array transducers... at ACS working in collaboration with the Federal Institute of Materials Research and Testing in Berlin, Germany (BAM), developed the first ultrasonic tomography system that required no coupling agent (Acoustic Control Systems n.d.). The tomograph, a...

  12. 3D Printing of Scintillating Materials

    E-Print Network [OSTI]

    Y. Mishnayot; M. Layani; I. Cooperstein; S. Magdassi; G. Ron

    2014-06-15T23:59:59.000Z

    We demonstrate, for the first time, the applicability of 3D printing technique to the manufacture of scintillation detectors. We report of a formulation, usable in stereolithographic printing, that exhibits scintillation efficiency on the order of 30\\% of that of commercial polystyrene based scintillators. We discuss the applicability of these techniques and propose future enhancements that will allow tailoring the printed scintillation detectors to various application.

  13. 3D Printing of Scintillating Materials

    E-Print Network [OSTI]

    Mishnayot, Y; Cooperstein, I; Magdassi, S; Ron, G

    2014-01-01T23:59:59.000Z

    We demonstrate, for the first time, the applicability of 3D printing technique to the manufacture of scintillation detectors. We report of a formulation, usable in stereolithographic printing, that exhibits scintillation efficiency on the order of 30\\% of that of commercial polystyrene based scintillators. We discuss the applicability of these techniques and propose future enhancements that will allow tailoring the printed scintillation detectors to various application.

  14. anterior pela tomografia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    hbrido de Tomografia por Emisso de Positres e Tomografia Computorizada (PETCT, acrnimo ingls de Positron Emission TomographyComputed Tomography) tem (more)...

  15. avaliacao pela tomografia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    hbrido de Tomografia por Emisso de Positres e Tomografia Computorizada (PETCT, acrnimo ingls de Positron Emission TomographyComputed Tomography) tem (more)...

  16. aided ct image: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Imaging X-rays Computed Tomography (CT) Positron Emission Tomography (PET 12;LSO-APD Array Schematic 12;Time-of-Flight PET 12;Energy Spectrum with lutetium...

  17. alternating current impedance: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    impedance tomography which seeks the electrical defects, such as cracks or voids, in metals 5, 6, 34, 63, 71, 129. Electrical impedance tomography has Borcea, Liliana 68...

  18. Page | 1 Managed Print Project Outline Pull Printing

    E-Print Network [OSTI]

    Glasgow, University of

    by extending specialist printing facilities to all users. The principal drivers for the project are carbon. Estimates are: 40% reduction in CO2 (from 477,676kg to 286,857kg; 60% reduction in electricity usage from the completion of these initiatives. The UK government's introduction of the Carbon Reduction Commitments (CRC

  19. A Detector for Proton Computed Tomography

    SciTech Connect (OSTI)

    Blazey, G.; et al.,

    2013-12-06T23:59:59.000Z

    Radiation therapy is a widely recognized treatment for cancer. Energetic protons have distinct features that set them apart from photons and make them desirable for cancer therapy as well as medical imaging. The clinical interest in heavy ion therapy is due to the fact that ions deposit almost all of their energy in a sharp peak – the Bragg peak- at the very end of their path. Proton beams can be used to precisely localize a tumor and deliver an exact dose to the tumor with small doses to the surrounding tissue. Proton computed tomography (pCT) provides direct information on the location on the target tumor, and avoids position uncertainty caused by treatment planning based on imaging with X-ray CT. The pCT project goal is to measure and reconstruct the proton relative stopping power distribution directly in situ. To ensure the full advantage of cancer treatment with 200 MeV proton beams, pCT must be realized.

  20. Nonlinear regularization techniques for seismic tomography

    SciTech Connect (OSTI)

    Loris, I. [Mathematics Department, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels (Belgium)], E-mail: igloris@vub.ac.be; Douma, H. [Department of Geosciences, Princeton University, Guyot Hall, Washington Road, Princeton, NJ 08544 (United States); Nolet, G. [Geosciences Azur, Universite de Nice-Sophia Antipolis, CNRS/IRD, 250 Rue Albert Einstein, Sophia Antipolis 06560 (France); Daubechies, I. [Program in Applied and Computational Mathematics, Princeton University, Fine Hall, Washington Road, Princeton, NJ 08544 (United States); Regone, C. [BP America Inc., 501 Westlake Park Blvd., Houston, TX 77079 (United States)

    2010-02-01T23:59:59.000Z

    The effects of several nonlinear regularization techniques are discussed in the framework of 3D seismic tomography. Traditional, linear, l{sub 2} penalties are compared to so-called sparsity promoting l{sub 1} and l{sub 0} penalties, and a total variation penalty. Which of these algorithms is judged optimal depends on the specific requirements of the scientific experiment. If the correct reproduction of model amplitudes is important, classical damping towards a smooth model using an l{sub 2} norm works almost as well as minimizing the total variation but is much more efficient. If gradients (edges of anomalies) should be resolved with a minimum of distortion, we prefer l{sub 1} damping of Daubechies-4 wavelet coefficients. It has the additional advantage of yielding a noiseless reconstruction, contrary to simple l{sub 2} minimization ('Tikhonov regularization') which should be avoided. In some of our examples, the l{sub 0} method produced notable artifacts. In addition we show how nonlinear l{sub 1} methods for finding sparse models can be competitive in speed with the widely used l{sub 2} methods, certainly under noisy conditions, so that there is no need to shun l{sub 1} penalizations.

  1. Quantum tomography with wavelet transform in Banach space on Homogeneous space

    E-Print Network [OSTI]

    M. A. Jafarizadeh; M. Mirzaee; M. Rezaee

    2008-01-25T23:59:59.000Z

    The intimate connection between the Banach space wavelet reconstruction method on homogeneous spaces with both singular and nonsingular vacuum vectors, and some of well known quantum tomographies, such as: Moyal-representation for a spin, discrete phase space tomography, tomography of a free particle, Homodyne tomography, phase space tomography and SU(1,1) tomography is explained. Also both the atomic decomposition and banach frame nature of these quantum tomographic examples is explained in details. Finally the connection between the wavelet formalism on Banach space and Q-function is discussed.

  2. Standards for Electronic and Print Communications DEFINITIONS

    E-Print Network [OSTI]

    , announcements, etc. Publications via electronic media (e.g. University Home Page items on the World Wide Web the wide range of print and electronic correspondence, research and other funding proposals, business forms, and various other print or word processed vehicles that are intrinsic to the everyday functioning of offices

  3. Mentoring Agreement Form Printed Name of

    E-Print Network [OSTI]

    Edwards, Paul N.

    Mentoring Agreement Form Printed Name of Student Mentee Term of Graduation Student ID Date Student email address Signature of Mentee Printed Name of Faculty Mentor Signature of Faculty Mentor Students are responsible for requesting appointments with mentors at least once each semester

  4. Poster Printing on Esmeralda GENERAL INFORMATION

    E-Print Network [OSTI]

    Ahlers, Guenter

    Poster Printing on Esmeralda 6.18.14 GENERAL INFORMATION · Location o The poster printer is located Poster Printer (HP Designjet z6100) [Esmeralda] DesignJet printer should be on. If red light is glowing PowerPoint file o From the File menu, choose Print. o Select Printer name: Esmeralda Direct o Click

  5. Content-adaptive Lenticular Prints James Tompkin

    E-Print Network [OSTI]

    Kautz, Jan

    to fixed-size lens arrays. We demonstrate our tech- nique using rendered simulations and by 3D printing.1 [Computer Graphics]: Hardware Architec- ture --Three-dimensional displays; Keywords: Lenticular displays, 3D printing. Links: DL PDF WEB 1 Introduction Displays that provide the illusion of three dimensions have

  6. State Waste Discharge Permit Application: Electric resistance tomography testing

    SciTech Connect (OSTI)

    Not Available

    1994-04-01T23:59:59.000Z

    This permit application documentation is for a State Waste Discharge Permit issued in accordance with requirements of Washington Administrative Code 173-216. The activity being permitted is a technology test using electrical resistance tomography. The electrical resistance tomography technology was developed at Lawrence Livermore National Laboratory and has been used at other waste sites to track underground contamination plumes. The electrical resistance tomography technology measures soil electrical resistance between two electrodes. If a fluid contaminated with electrolytes is introduced into the soil, the soil resistance is expected to drop. By using an array of measurement electrodes in several boreholes, the areal extent of contamination can be estimated. At the Hanford Site, the purpose of the testing is to determine if the electrical resistance tomography technology can be used in the vicinity of large underground metal tanks without the metal tank interfering with the test. It is anticipated that the electrical resistance tomography technology will provide a method for accurately detecting leaks from the bottom of underground tanks, such as the Hanford Site single-shell tanks.

  7. Abstract--Single-photon emission computed tomography (SPECT) is based on the measurement of radiation emitted by a

    E-Print Network [OSTI]

    Abstract-- Single-photon emission computed tomography (SPECT) is based on the measurement is demonstrated by computer simulation experiments* . I. INTRODUCTION Single-photon emission computed tomography

  8. Finite element analysis and computed tomography based structural rigidity analysis of rat tibia with simulated lytic defects

    E-Print Network [OSTI]

    Vaziri, Ashkan

    Finite element analysis and computed tomography based structural rigidity analysis of rat tibia) (Damron et al., 2003; Mirels, 1989). In contrast, Computed Tomography based Structural Rigidly Ana- lysis

  9. Abstract --Single photon emission computed tomography (SPECT) is based on the measurement of radiation emitted by a

    E-Print Network [OSTI]

    Abstract -- Single photon emission computed tomography (SPECT) is based on the measurement-photon emission computed tomography (SPECT), because of photoelectric absorption and Compton scatter, the gamma

  10. An Efficient Neumann-Series Based Algorithm for Thermoacoustic and Photoacoustic Tomography with Variable Sound Speed

    E-Print Network [OSTI]

    Stefanov, Plamen

    An Efficient Neumann-Series Based Algorithm for Thermoacoustic and Photoacoustic Tomography present an efficient algorithm for reconstructing an unknown source in Thermoacoustic and Photoacoustic of the Neumann-series based algorithm. 1 Introduction Thermoacoustic (TAT) and Photoacoustic (PAT) Tomography

  11. Microwave-induced thermoacoustic tomography: applications and corrections for the effects of acoustic heterogeneities 

    E-Print Network [OSTI]

    Jin, Xing

    2009-05-15T23:59:59.000Z

    This research is primarily focused on developing potential applications for microwaveinduced thermoacoustic tomography and correcting for image degradations caused by acoustic heterogeneities. Microwave-induced thermoacoustic tomography was first...

  12. X-ray Computed Tomography of the Root System of a Live Potted...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    X-ray Computed Tomography of the Root System of a Live Potted Plant X-ray Computed Tomography of the Root System of a Live Potted Plant Being able to see the root structure of a...

  13. SU-E-I-52: Validation of Multi-Frequency Electrical Impedance Tomography Using Computed Tomography

    SciTech Connect (OSTI)

    Kohli, K; Liu, F; Krishnan, K [BC Cancer Agency, Surrey, BC (United Kingdom)

    2014-06-01T23:59:59.000Z

    Purpose: Multi-frequency EIT has been reported to be a potential tool in distinguishing a tissue anomaly from background. In this study, we investigate the feasibility of acquiring functional information by comparing multi-frequency EIT images in reference to the structural information from the CT image through fusion. Methods: EIT data was acquired from a slice of winter melon using sixteen electrodes around the phantom, injecting a current of 0.4mA at 100, 66, 24.8 and 9.9 kHz. Differential EIT images were generated by considering different combinations of pair frequencies, one serving as reference data and the other as test data. The experiment was repeated after creating an anomaly in the form of an off-centered cavity of diameter 4.5 cm inside the melon. All EIT images were reconstructed using Electrical Impedance Tomography and Diffuse Optical Tomography Reconstruction Software (EIDORS) package in 2-D differential imaging mode using one-step Gaussian Newton minimization solver. CT image of the melon was obtained using a Phillips CT Scanner. A segmented binary mask image was generated based on the reference electrode position and the CT image to define the regions of interest. The region selected by the user was fused with the CT image through logical indexing. Results: Differential images based on the reference and test signal frequencies were reconstructed from EIT data. Result illustrated distinct structural inhomogeneity in seeded region compared to fruit flesh. The seeded region was seen as a higherimpedance region if the test frequency was lower than the base frequency in the differential EIT reconstruction. When the test frequency was higher than the base frequency, the signal experienced less electrical impedance in the seeded region during the EIT data acquisition. Conclusion: Frequency-based differential EIT imaging can be explored to provide additional functional information along with structural information from CT for identifying different tissues.

  14. Some Remarks on Quantum Tomography in Laser Cooling

    E-Print Network [OSTI]

    Artur Czerwi?ski

    2015-04-16T23:59:59.000Z

    In this article we take into consideration the evolution model of 3-level quantum systems known as \\textit{laser cooling}. The evolution in this model is given by an equation which is a special case of the general Kossakowski-Lindblad master equation. The explicit knowledge about the evolution makes it possible to apply the stroboscopic tomography to laser cooling. In this article we present some remarks concerning the minimal number of observables and moments of measurement for quantum tomography in laser cooling.

  15. Quantum Process Tomography by 2D Fluorescence Spectroscopy

    E-Print Network [OSTI]

    Leonardo A. Pachon; Andrew H. Marcus; Alan Aspuru-Guzik

    2015-02-09T23:59:59.000Z

    Reconstruction of the dynamics (quantum process tomography) of the single-exciton manifold in energy transfer systems is proposed here on the basis of two-dimensional fluorescence spectroscopy (2D-FS) with phase-modulation. The quantum-process-tomography protocol introduced here benefits from, e.g., the sensitivity enhancement and signal-to-noise ratio ascribed to 2D-FS. Although the isotropically averaged spectroscopic signals depend on the quantum yield parameter $\\Gamma$ of the doubly-excited-exciton manifold, it is shown that the reconstruction of the dynamics is insensitive to this parameter. Applications to foundational and applied problems, as well as further extensions, are discussed.

  16. Quantum Process Tomography by 2D Fluorescence Spectroscopy

    E-Print Network [OSTI]

    Pachon, Leonardo A; Aspuru-Guzik, Alan

    2015-01-01T23:59:59.000Z

    Reconstruction of the dynamics (quantum process tomography) of the single-exciton manifold in energy transfer systems is proposed here on the basis of two-dimensional fluorescence spectroscopy (2D-FS) with phase-modulation. The quantum-process-tomography protocol introduced here benefits from, e.g., the sensitivity enhancement and signal-to-noise ratio ascribed to 2D-FS. Although the isotropically averaged spectroscopic signals depend on the quantum yield parameter $\\Gamma$ of the doubly-excited-exciton manifold, it is shown that the reconstruction of the dynamics is insensitive to this parameter. Applications to foundational and applied problems, as well as further extensions, are discussed.

  17. Bootstrap tomography of high-precision pulses for quantum control

    E-Print Network [OSTI]

    V. V. Dobrovitski; G. de Lange; D. Ristè; R. Hanson

    2010-04-19T23:59:59.000Z

    Long-time dynamical decoupling and quantum control of qubits require high-precision control pulses. Full characterization (quantum tomography) of imperfect pulses presents a bootstrap problem: tomography requires initial states of a qubit which can not be prepared without imperfect pulses. We present a protocol for pulse error analysis, specifically tailored for a wide range of the single solid-state electron spins. Using a single electron spin of a nitrogen-vacancy (NV) center in diamond, we experimentally verify the correctness of the protocol, and demonstrate its usefulness for quantum control tasks.

  18. Multiplexed absorption tomography with calibration-free wavelength modulation spectroscopy

    SciTech Connect (OSTI)

    Cai, Weiwei; Kaminski, Clemens F., E-mail: cfk23@cam.ac.uk [Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB2 3RA (United Kingdom)

    2014-04-14T23:59:59.000Z

    We propose a multiplexed absorption tomography technique, which uses calibration-free wavelength modulation spectroscopy with tunable semiconductor lasers for the simultaneous imaging of temperature and species concentration in harsh combustion environments. Compared with the commonly used direct absorption spectroscopy (DAS) counterpart, the present variant enjoys better signal-to-noise ratios and requires no baseline fitting, a particularly desirable feature for high-pressure applications, where adjacent absorption features overlap and interfere severely. We present proof-of-concept numerical demonstrations of the technique using realistic phantom models of harsh combustion environments and prove that the proposed techniques outperform currently available tomography techniques based on DAS.

  19. Quantum Process Tomography via L1-norm Minimization

    E-Print Network [OSTI]

    Robert L. Kosut

    2009-03-05T23:59:59.000Z

    For an initially well designed but imperfect quantum information system, the process matrix is almost sparse in an appropriate basis. Existing theory and associated computational methods (L1-norm minimization) for reconstructing sparse signals establish conditions under which the sparse signal can be perfectly reconstructed from a very limited number of measurements (resources). Although a direct extension to quantum process tomography of the L1-norm minimization theory has not yet emerged, the numerical examples presented here, which apply L1-norm minimization to quantum process tomography, show a significant reduction in resources to achieve a desired estimation accuracy over existing methods.

  20. Radio Science, Volume ???, Number , Pages 131, Radio tomography of the ionosphere: Analysis

    E-Print Network [OSTI]

    Garcia, Raphaël

    Radio Science, Volume ???, Number , Pages 1­31, Radio tomography of the ionosphere: Analysis AND CRESPON: 4D IONOSPHERE TOMOGRAPHY After analysing the forward and inverse problems of radio tomography, the development of Faraday rotation measurements on-board satellites opens the way to magnetospheric radio

  1. Quantitative electron holographic tomography for the 3D characterisation of semiconductor device structures

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    Quantitative electron holographic tomography for the 3D characterisation of semiconductor device tomography Silicon devices Device characterisation a b s t r a c t Electron tomography and electron rights reserved. 1. Introduction Dopant profiling of semiconductor devices using off-axis electron

  2. THERMOACOUSTIC TOMOGRAPHY ARISING IN BRAIN IMAGING PLAMEN STEFANOV AND GUNTHER UHLMANN

    E-Print Network [OSTI]

    Uhlmann, Gunther

    THERMOACOUSTIC TOMOGRAPHY ARISING IN BRAIN IMAGING PLAMEN STEFANOV AND GUNTHER UHLMANN Abstract. We study the mathematical model of thermoacoustic and photoacoustic tomography when the sound speed has. Introduction In this paper, we study the mathematical model of thermoacoustic and photoacoustic tomography

  3. Effects of acoustic heterogeneities on transcranial brain imaging with microwave-induced thermoacoustic tomography

    E-Print Network [OSTI]

    Wang, Lihong

    -induced thermoacoustic tomography Xing Jin Department of Biomedical Engineering, Texas A&M University, 3120 TAMU, College: thermoacoustic tomography, transcranial brain imaging, acoustic heterogeneities I. INTRODUCTION Microwave-induced thermoacoustic tomography TAT is a noninvasive and nonionizing imaging modality that can dif- ferentiate

  4. Image distortion in thermoacoustic tomography caused by microwave diffraction Changhui Li,* Manojit Pramanik,

    E-Print Network [OSTI]

    Wang, Lihong

    Image distortion in thermoacoustic tomography caused by microwave diffraction Changhui Li,* Manojit-induced thermoacoustic tomography. The distortion, due to microwave diffraction in the object to be imaged, leads Thermoacoustic TA tomography TAT in biological tis- sue reconstructs the TA source distribution from the acoustic

  5. Reconstructions in limited-view thermoacoustic tomography Yuan Xu and Lihong V. Wanga)

    E-Print Network [OSTI]

    Ambartsoumian, Gaik

    Reconstructions in limited-view thermoacoustic tomography Yuan Xu and Lihong V. Wanga) Optical for publication 9 December 2003; published 11 March 2004 The limited-view problem is studied for thermoacoustic of Physicists in Medicine. DOI: 10.1118/1.1644531 Key words: thermoacoustic tomography, photoacoustic tomography

  6. Tangential resolution improvement in thermoacoustic and photoacoustic tomography using a negative

    E-Print Network [OSTI]

    Wang, Lihong

    Tangential resolution improvement in thermoacoustic and photoacoustic tomography using a negative improve- ment of the tangential resolution in both thermoacoustic and photoa- coustic tomography. In both thermoacoustic and photoacoustic tomography, for a given transducer bandwidth, the aperture size of the detector

  7. THERMOACOUSTIC TOMOGRAPHY WITH VARIABLE SOUND SPEED PLAMEN STEFANOV AND GUNTHER UHLMANN

    E-Print Network [OSTI]

    Uhlmann, Gunther

    THERMOACOUSTIC TOMOGRAPHY WITH VARIABLE SOUND SPEED PLAMEN STEFANOV AND GUNTHER UHLMANN ABSTRACT. We study the mathematical model of thermoacoustic tomography in media with a variable speed are taken on a part of the boundary. 1. INTRODUCTION In thermoacoustic tomography, a short electro

  8. THERMOACOUSTIC TOMOGRAPHY ARISING IN BRAIN IMAGING PLAMEN STEFANOV AND GUNTHER UHLMANN

    E-Print Network [OSTI]

    Stefanov, Plamen

    THERMOACOUSTIC TOMOGRAPHY ARISING IN BRAIN IMAGING PLAMEN STEFANOV AND GUNTHER UHLMANN ABSTRACT. We study the mathematical model of thermoacoustic and photoacoustic tomography when the sound speed has. INTRODUCTION In this paper, we study the mathematical model of thermoacoustic and photoacoustic tomography

  9. Dual-dictionary learning-based iterative image reconstruction for spectral computed tomography application

    E-Print Network [OSTI]

    Wang, Ge

    Dual-dictionary learning-based iterative image reconstruction for spectral computed tomography-based iterative image reconstruction for spectral computed tomography application Bo Zhao1 , Huanjun Ding1 , Yang discriminating photon-counting detectors, such as cadmium­zinc­telluride (CZT), in spectral computed tomography

  10. May 1, 2003 / Vol. 28, No. 9 / OPTICS LETTERS 701 Projected index computed tomography

    E-Print Network [OSTI]

    Bhargava, Rohit

    May 1, 2003 / Vol. 28, No. 9 / OPTICS LETTERS 701 Projected index computed tomography Adam M. Zysk Projected index computed tomography (PICT) is a new imaging technique that provides a computed recon structure is evident. Recently the tools of computed tomography were applied to optical microscopy

  11. Adaptive Noise Reduction toward Low-dose Computed Tomography Hongbing Lu*ad

    E-Print Network [OSTI]

    Adaptive Noise Reduction toward Low-dose Computed Tomography Hongbing Lu*ad , Xiang Lia , Lihong phantom projections acquired by a GE spiral computed tomography (CT) scanner under 10 mAs tube current, computed tomography, adaptive filtering, edge- preserving smoothing, streak artifacts. 1. INTRODUCTION

  12. Experimental measurement of human head motion for high-resolution computed tomography

    E-Print Network [OSTI]

    Wang, Ge

    Experimental measurement of human head motion for high-resolution computed tomography system design experimentally measured for high-resolution computed tomography CT design using a Canon digital camera. Our goal-Optical Instrumentation Engineers. DOI: 10.1117/1.3454379 Subject terms: head motion; computed tomography CT ; image

  13. Adaptive Bolus Chasing Computed Tomography Angiography: Control Scheme and Experimental Results

    E-Print Network [OSTI]

    Wang, Ge

    Adaptive Bolus Chasing Computed Tomography Angiography: Control Scheme and Experimental Results to synchronize the bolus peak in a patient's vascular system and the imaging aperture of a computed tomography standard. Keywords Adaptive bolus chasing; Computed Tomography Angiography I. Introduction With the advent

  14. Using X-ray computed tomography in pore structure characterization for a Berea sandstone: Resolution effect

    E-Print Network [OSTI]

    Hu, Qinhong "Max"

    Using X-ray computed tomography in pore structure characterization for a Berea sandstone Keywords: XCT Pore structure characterization Resolution effect MIP s u m m a r y X-ray computed tomography electron microscopy (Ioannidis et al., 1996), X-ray computed tomography (XCT) with either conventional

  15. Bachelor of Science, Radiologic Sciences, Computed Tomography Emphasis, 2012-2013 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Bachelor of Science, Radiologic Sciences, Computed Tomography Emphasis, 2012-2013 Name ID# Date Imaging 3 RADSCI 431 CT Radiation Dose and Risk Analysis 1 RADSCI 450 Principles of Computed Tomography 3 RADSCI 450L Principles of Computed Tomography Lab 1 RADSCI 451 Procedural Case Studies in Computed

  16. Reconstruction for proton computed tomography by tracing proton trajectories: A Monte Carlo study

    E-Print Network [OSTI]

    Reconstruction for proton computed tomography by tracing proton trajectories: A Monte Carlo study 11 January 2006; published 22 February 2006 Proton computed tomography pCT has been explored computed tomography pCT has several potential ad- vantages in medical applications. Its favorable dose

  17. An Exact Modeling of Signal Statistics in Energy-integrating X-ray Computed Tomography

    E-Print Network [OSTI]

    An Exact Modeling of Signal Statistics in Energy-integrating X-ray Computed Tomography Yi Fan1 used by modern computed tomography (CT) scanners and has been an interesting research topic 1. INTRODUCTION In x-ray computed tomography (CT), Poisson noise model has been widely used in noise

  18. 18. Ultrasonic Computed Tomography Philippe Lasaygues, Rgine Guillermin, Jean-Pierre Lefebvre

    E-Print Network [OSTI]

    Boyer, Edmond

    18. Ultrasonic Computed Tomography Philippe Lasaygues, Régine Guillermin, Jean-Pierre Lefebvre ­ France Abstract: Ultrasonic Computed Tomography (UCT) is a full digital imaging technique, which consists, or the acoustical impedance of the medium. Ultrasonic Computed Tomography (UCT), which combines X-ray Computed

  19. On the data dependent filtration techniques in the single-photon emission computed tomography

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    On the data dependent filtration techniques in the single-photon emission computed tomography J computed tomography (SPECT) data modeled as the 2D attenuated ray transform with Poisson noise.G.Novikov, A noise property analysis of single-photon emission computed tomography data, Inverse Problems 20, pp.175

  20. Fast three-dimensional terahertz computed tomography using real-time line projection of

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fast three-dimensional terahertz computed tomography using real-time line projection of intense terahertz computed tomography by using real-time line projection of intense terahertz beam generated). 4. B. Ferguson, S. Wang, D. Gray, D. Abbot, and X.-C. Zhang, "T-ray computed tomography," Opt. Lett

  1. Western Association of Vertebrate Paleontology Annual Meeting: Program with Abstracts

    E-Print Network [OSTI]

    Sankey, Julia, editor; Biewer, Jacob, editor

    2015-01-01T23:59:59.000Z

    computed tomography and 3D printing for study of aCOM- PUTED TOMOGRAPHY AND 3D PRINTING FOR STUDY OF A

  2. Heat sinking for printed circuitry

    DOE Patents [OSTI]

    Wilson, S.K.; Richardson, G.; Pinkerton, A.L.

    1984-09-11T23:59:59.000Z

    A flat pak or other solid-state device mounted on a printed circuit board directly over a hole extends therethrough so that the bottom of the pak or device extends beyond the bottom of the circuit board. A heat sink disposed beneath the circuit board contacts the bottom of the pak or device and provides direct heat sinking thereto. Pressure may be applied to the top of the pak or device to assure good mechanical and thermal contact with the heat sink.

  3. Gas cushion control of OVJP print head position

    DOE Patents [OSTI]

    Forrest, Stephen R

    2014-10-07T23:59:59.000Z

    An OVJP apparatus and method for applying organic vapor or other flowable material to a substrate using a printing head mechanism in which the print head spacing from the substrate is controllable using a cushion of air or other gas applied between the print head and substrate. The print head is mounted for translational movement towards and away from the substrate and is biased toward the substrate by springs or other means. A gas cushion feed assembly supplies a gas under pressure between the print head and substrate which opposes the biasing of the print head toward the substrate so as to form a space between the print head and substrate. By controlling the pressure of gas supplied, the print head separation from the substrate can be precisely controlled.

  4. eSales Interactive Mapping -Viewing and Printing Introduction

    E-Print Network [OSTI]

    eSales Interactive Mapping - Viewing and Printing Introduction Our eSales system includes an integrated interactive map facility. This allows you to view and print maps for all lots on offer. Various

  5. advanced packaging technology: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    David Smukowski, Sensors in Motion Embedded Actuation and Sensing Via Multi-Material 3D Printing.m. 3D Printing Multi-Functionality: Mec Materials for 2.5D and 3D Packaging Systems...

  6. advanced packaging technologies: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    David Smukowski, Sensors in Motion Embedded Actuation and Sensing Via Multi-Material 3D Printing.m. 3D Printing Multi-Functionality: Mec Materials for 2.5D and 3D Packaging Systems...

  7. actinobacillus pleuropneumonia part: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  8. abnormal 3-d mri: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  9. axial 3-d pet: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  10. advanced electronic packages: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    David Smukowski, Sensors in Motion Embedded Actuation and Sensing Via Multi-Material 3D Printing.m. 3D Printing Multi-Functionality: Mec Materials for 2.5D and 3D Packaging Systems...

  11. antimyosin fab imaging: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    simultaneously. Testing procedures: Demonstrate de Lijser, Peter 14 TCAUP FabLab 3D PRINTING ORDER FORM Engineering Websites Summary: TCAUP FabLab 3D PRINTING ORDER FORM: UNIQ...

  12. auslese von 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  13. aeneus fab larvae: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    simultaneously. Testing procedures: Demonstrate de Lijser, Peter 18 TCAUP FabLab 3D PRINTING ORDER FORM Engineering Websites Summary: TCAUP FabLab 3D PRINTING ORDER FORM: UNIQ...

  14. anthropomorphic models pt: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    -driven, anthropomorphic robotic hand. The prototyping process makes the most of 3D printing technology, and takes@cs.washington.edu Fig. 1. The 3D-printed 20-DOF...

  15. autostereoscopic 3d display: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    or restrict themselves to light dif- fusion in volumes. We use multi-material 3D printing to fabricate objects Additional Key Words and Phrases: 3D printing, optical fibers...

  16. Characterizing tensile loading responses of 3D printed samples

    E-Print Network [OSTI]

    Haid, Christopher M

    2014-01-01T23:59:59.000Z

    An experimental study was performed to characterize the loading response of samples manufactured through 3D printing. Tensile testing was performed on a number of 3D printed samples created through Fused Filament Fabrication ...

  17. Mechanical testing of rapid-prototyping refractory ceramic print media

    E-Print Network [OSTI]

    Martin, Rachel (Rachel M.)

    2013-01-01T23:59:59.000Z

    Additively manufactured (3D-printed) refractory alumina-silica ceramics were mechanically tested to ascertain their ultimate tensile strengths and observed to determine their dimensional consistency over the printing and ...

  18. aperture radar 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    study was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a...

  19. accuracy 3d quantum: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    study was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a...

  20. Three-dimensionally printed biological machines powered by skeletal muscle

    E-Print Network [OSTI]

    Bashir, Rashid

    in animals, as a con- tractile power source. Here, we report the development of 3D printed hydrogel "bio-bots were optimized using stereolithographic 3D printing, and the ef- fect of collagen I and fibrin

  1. Reactive binders for metal parts produced by Three Dimensional Printing

    E-Print Network [OSTI]

    Yoo, Helen Jean

    1997-01-01T23:59:59.000Z

    Three Dimensional Printing (3DP) is a solid free form fabrication process which enables the construction of parts directly from computer-aided design (CAD) models. In the current process, metal parts are produced by printing ...

  2. Neutron Stimulated Emission Computed Tomography of Stable Isotopes

    E-Print Network [OSTI]

    on the development of a new molecular imaging technique using inelastic scattering of fast neutrons. Earlier studies characteristic gamma photons through inelastic scattering of an external neutron beam. These stable isotopes canNeutron Stimulated Emission Computed Tomography of Stable Isotopes Carey E. Floyd Jr.*ab , Calvin

  3. Calibration Using Matrix Completion with Application to Ultrasound Tomography

    E-Print Network [OSTI]

    Vetterli, Martin

    1 Calibration Using Matrix Completion with Application to Ultrasound Tomography Reza Parhizkar, IEEE Abstract--We study the application of matrix completion in the process of calibrating physical devices. In particular we propose an algorithm together with reconstruction bounds for calibrating

  4. Adaptive optics enhanced simultaneous en-face optical coherence tomography

    E-Print Network [OSTI]

    Dainty, Chris

    Adaptive optics enhanced simultaneous en-face optical coherence tomography and scanning laser ophthalmoscopy David Merino and Chris Dainty Applied Optics Group, Department of Experimental Physics, National and Adrian Gh. Podoleanu Applied Optics Group, School of Physical Sciences, University of Kent at Canterbury

  5. Electrical Impedance Tomography in geophysics, application of EIDORS

    E-Print Network [OSTI]

    Adler, Andy

    Electrical Impedance Tomography in geophysics, application of EIDORS Lesparre N., Adler A., Gibert to adapt EIDORS for applications in geophysics. In geophysics, we apply EIT in order to image inner. The spatial resolution of the method in geophysics is of the order of meters and the penetration depth can

  6. Variationally Constrained Numerical Solution of Electrical Impedance Tomography

    E-Print Network [OSTI]

    Zhang, Yin

    deposits [77], detection of leaks in underground storage tanks [79] and for monitoring flows of injected the influence of external electric fields [58]. Let us consider a bounded, simply connected set# # IR d , for d the electric field and the electric current at location x # # Electrical Impedance Tomography (EIT

  7. Volumetric Reconstruction in the MicroCAT Tomography System

    E-Print Network [OSTI]

    Cates, Josh

    0, half of the volume depth. . . . 59 vi #12; List of Figures 1.1 Scanning geometry of the MicroCAT system. . . . . . . . . . . . . . . . 6 1.2 Top view of MicroCAT scanning geometry, showing the pathVolumetric Reconstruction in the MicroCAT Tomography System A Thesis Presented for the Master

  8. Ultrasound-modulated optical tomography in soft biological tissues

    E-Print Network [OSTI]

    Sakadzic, Sava

    2007-09-17T23:59:59.000Z

    Ultrasound-modulated Optical Tomography in Soft Biological Tissues. (May 2006) Sava Sakad•zi¶c, B.S., University of Belgrade, Serbia and Montenegro; M.S., University of Belgrade, Serbia and Montenegro Chair of Advisory Committee: Dr. Lihong V. Wang Optical...

  9. Spherical radon transforms and mathematical problems of thermoacoustic tomography

    E-Print Network [OSTI]

    Ambartsoumian, Gaik

    2009-06-02T23:59:59.000Z

    The spherical Radon transform (SRT) integrates a function over the set of all spheres with a given set of centers. Such transforms play an important role in some newly developing types of tomography as well as in several areas of mathematics...

  10. Optical Coherence Tomography for Neurosurgical Imaging of Human Intracortical Melanoma

    E-Print Network [OSTI]

    Boppart, Stephen

    Optical Coherence Tomography for Neurosurgical Imaging of Human Intracortical Melanoma Stephen A an intracortical melanoma. INSTRUMENTATION: OCT is a new, noncontact, high-speed imaging technology capable for imaging within the surgical field. Cadaveric human cortex with metastatic melanoma was harvested

  11. USING OPTICAL COHERENCE TOMOGRAPHY TO EXAMINE THE SUBSURFACE MORPHOLOGY OF

    E-Print Network [OSTI]

    Barton, Jennifer K.

    : (1) a homogeneous glassy phase; (2) a liquid­liquid phase separated state; and (3) a crystallizedUSING OPTICAL COHERENCE TOMOGRAPHY TO EXAMINE THE SUBSURFACE MORPHOLOGY OF CHINESE GLAZES M of their glazes. The images revealed unique phase assemblage modes in different samples. The results suggest

  12. rf testbed for thermoacoustic tomography D. Fallon,1

    E-Print Network [OSTI]

    Hanson, George

    rf testbed for thermoacoustic tomography D. Fallon,1 L. Yan,2 G. W. Hanson,3 and S. K. Patch4,a 1 Received 28 October 2008; accepted 22 April 2009; published online 9 June 2009 Thermoacoustic signal is a preferred acoustic coupling medium for thermoacoustics because acoustic and electromagnetic waves propagate

  13. Time reversal in thermoacoustic tomography - an error estimate

    E-Print Network [OSTI]

    Hristova, Yulia

    2008-01-01T23:59:59.000Z

    The time reversal method in thermoacoustic tomography is used for approximating the initial pressure inside a biological object using measurements of the pressure wave made outside the object. This article presents error estimates for the time reversal method in the cases of variable, non-trapping sound speeds.

  14. A family of inversion formulas in Thermoacoustic Tomography

    E-Print Network [OSTI]

    Nguyen, Linh V

    2009-01-01T23:59:59.000Z

    We present a family of closed form inversion formulas in thermoacoustic tomography in the case of a constant sound speed. The formulas are presented in both time-domain and frequency-domain versions. As special cases, they imply most of the previously known filtered backprojection type formulas.

  15. On singularities and instability of reconstruction in thermoacoustic tomography

    E-Print Network [OSTI]

    Nguyen, Linh V

    2009-01-01T23:59:59.000Z

    We consider the problem of thermoacoustic tomography (TAT), in which one needs to reconstruct the initial value of a solution of the wave equation from its value on an observation surface. We show that if some geometric rays for the equation do not intersect the observation surface, the reconstruction in TAT is not H\\"{o}lder stable.

  16. Asymmetries in Electrical Impedance Tomography Lung Images Bartlomiej Grychtol1

    E-Print Network [OSTI]

    Adler, Andy

    Asymmetries in Electrical Impedance Tomography Lung Images Bartlomiej Grychtol1 and Andy Adler2 1, it has been used to image the thorax, to monitor the movement of blood and gas in the heart and lungs. One key application of EIT is to determine the distribution of ventilation within the lungs

  17. author research productivity: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2007 -Forest industry production Authorities Renewable Energy Websites Summary: FINLAND SOURCES 2007 - Forest industry production Print Home Finland Government Authorities...

  18. archipelago sea finland: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2007 -Forest industry production Authorities Renewable Energy Websites Summary: FINLAND SOURCES 2007 - Forest industry production Print Home Finland Government Authorities...

  19. acid hydrogel carrying: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Materials Science Websites Summary: Keywords: Mesenchymal stem cells Microcontact printing Microenvironment Differentiation Polyacrylamide by studying cells adherent to...

  20. WIDEBAND SLOT AND PRINTED ANTENNAS ATEF Z. ELSHERBENI

    E-Print Network [OSTI]

    Elsherbeni, Atef Z.

    with tuning stubs, bowtie slot antennas with tapered tuning stubs, and microstrip-fed printed bowtie antennas

  1. Insights into the structure of the upper mantle beneath the Murray Basin from 3D teleseismic tomography

    E-Print Network [OSTI]

    Rawlinson, Nick

    tomography studies have been carried out in western Victoria (Graeber et al. 2002) and northern Tasmania

  2. A QuickStart Guide to printing a

    E-Print Network [OSTI]

    A QuickStart Guide to printing a 3D model starting from a block of bytes Bridget CarragherStart Guide to printing a 3D model starting from a block of bytes This is currently a three step process. (1 and selecting a new size (of 3 inches for example). Once you have done this, choose Print from the File menu

  3. 3D Printing of Functional and Biological Materials

    E-Print Network [OSTI]

    ! 3D Printing of Functional and Biological Materials Jennifer A. Lewis Wyss Professor)! Multimaterial 3D printing ! #12;3D antennas! Li ion microbatteries! Lightweight microlattices!Flexible sensors! 3D Printing of Integrated Electronic Devices ! #12;20 nm average , 5 ­ 50 nm

  4. A quality map of transfer printing Matthew B. Tucker,1

    E-Print Network [OSTI]

    Li, Teng

    - nique to enable a low-cost and scalable roll-to-roll printing process of flexible devices.13­19 Although printing toward a roll-to-roll printing process of flexible devices hinges upon the understanding be fabricated on compliant organic substrates polymers, elastomers , result- ing in lightweight, rugged

  5. PrintCentreContact the Print Centre for assistance with all your document needs.

    E-Print Network [OSTI]

    Brownstone, Rob

    PrintCentreContact the Print Centre for assistance with all your document needs. Dalhousie We-campus deliveries · Management program for campus multifunction devices (MFDs) We also offer printer and copier Science (BCSc), Bachelor of Informatics (BInf), Bachelor of Management (BMgt) and Bachelor of Science (BSc

  6. Understanding and developing capabilities for large area and continuous micro contact printing

    E-Print Network [OSTI]

    Goel, Ambika

    2007-01-01T23:59:59.000Z

    Micro contact printing is a high spatial resolution-patterning tool that can be used for printing on large and non-planar surfaces because of which it has begun to find important applications in printed organic electronics ...

  7. Print-and-Peel Fabrication for Microfluidics: What’s in it for Biomedical Applications?

    E-Print Network [OSTI]

    Thomas, Marlon S.; Millare, Brent; Clift, Joseph M.; Bao, Duoduo; Hong, Connie; Vullev, Valentine I.

    2010-01-01T23:59:59.000Z

    of direct three-dimensional (3D) printing of masters using ahave the capability for 3D printing, and hence, for directly3D elements allow for achieving fea- tures, demonstrated with solid-object printing,

  8. Print-and-Peel Fabrication for Microfluidics: What’s in it for Biomedical Applications?

    E-Print Network [OSTI]

    Thomas, Marlon S.; Millare, Brent; Clift, Joseph M.; Bao, Duoduo; Hong, Connie; Vullev, Valentine I.

    2010-01-01T23:59:59.000Z

    have the capability for 3D printing, and hence, for directlyof direct three-dimensional (3D) printing of masters using a3D elements allow for achieving fea- tures, demonstrated with solid-object printing,

  9. School of Art & Design 3D Printing of Relief Forms onto Ceramic Tiles

    E-Print Network [OSTI]

    Evans, Paul

    School of Art & Design 3D Printing of Relief Forms onto Ceramic Tiles Lead: Lharne Shaw 3D printing tile production. It will also assess the feasibility of introducing a 3D slip printing system into both

  10. Improvement of 3D Printing Resolution by the Development of Shrinkable Materials

    E-Print Network [OSTI]

    Chia, Helena

    2014-01-01T23:59:59.000Z

    learned a lot about 3D printing and myself in this processderived microstructures by 3D printing: bio-and structuralScaffold development using 3D printing with a starch-based

  11. Evaluation of PC-ISO for customized, 3D printed, gynecologic 192Ir HDR brachytherapy applicators

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    A, Iuliano L, Violante MG. 3D printing technique applied toTengg-Kobligk H, et al. 3D printing based on imaging data:biocompatible, sterilizable 3D printing material, and its

  12. Improvement of 3D Printing Resolution by the Development of Shrinkable Materials

    E-Print Network [OSTI]

    Chia, Helena

    2014-01-01T23:59:59.000Z

    derived microstructures by 3D printing: bio-and structuralScaffold development using 3D printing with a starch-basedderived microstructures by 3D printing: bio-and structural

  13. In Situ X-Ray Scattering Helps Optimize Printed Solar Cells

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    In Situ X-Ray Scattering Helps Optimize Printed Solar Cells In Situ X-Ray Scattering Helps Optimize Printed Solar Cells Print Wednesday, 25 February 2015 00:00 Plastic solar cells...

  14. amoxicillin: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to carefully balance potential risks Ral J. Andrade; Paul M. Tulkens 14 Printed in Croatia CiteSeer Summary: The incidence of Salmonella in dogs was investigated to assess the...

  15. albumen: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1840-1895. Bibliography: p. 1. Photography--Printing processes. 2. Albumen James M. Reilly; For Linda; James M; Henry Peach Robinson 1840-01-01 5 TheJournalofExperimentalBiology...

  16. Digital imaging tracing technology for print media

    E-Print Network [OSTI]

    Milne, Stewart William

    1997-01-01T23:59:59.000Z

    This thesis examines and analyzes the existing state of digital technology use in print media and the attitudes of those using the technology to develop a technology that would help prevent the unethical manipulation of images in mass media...

  17. arkansas: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and...

  18. Printed on recycled paper. 2013 Cornell Waste

    E-Print Network [OSTI]

    Chen, Tsuhan

    management by focusing University resources and capabilities on this pressing economic, environmental of waste generation and composition, waste reduction, risk management, environmental equity and publicPrinted on recycled paper. 2013 Cornell Waste Management Institute CWMI is a program

  19. Review: 3D Printing: Social and Cultural Trajectories Symposium -3D Printing Industry http://3dprintingindustry.com/2013/12/11/review-3d-printing-social-cultural-trajectories-symposium/[12/12/2013 11:25:00 AM

    E-Print Network [OSTI]

    Review: 3D Printing: Social and Cultural Trajectories Symposium - 3D Printing Industry http://3dprintingindustry.com/2013/12/11/review-3d-printing-social-cultural-trajectories-symposium/[12/12/2013 11:25:00 AM] Review: 3D Printing: Social and Cultural Trajectories Symposium BY ANGELA DALY & DARCY ALLEN ON WED

  20. Printed Name: Page 1 of 6

    E-Print Network [OSTI]

    Walba, David

    print your name on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6Printed Name: Page 1 of 6 CHEM 3311-100, Fall 2013 Professor Walba First Hour Exam September 24: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  1. Printed Name: Page 1 of 7

    E-Print Network [OSTI]

    Walba, David

    print your name on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6Printed Name: Page 1 of 7 CHEM 3311-100, Fall 2013 Professor Walba Second Hour Exam October 22: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  2. Printed Name: Page 1 of 8

    E-Print Network [OSTI]

    Walba, David

    print your name on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6Printed Name: Page 1 of 8 CHEM 3311-100, Fall 2013 Professor Walba Third Hour Exam November 19: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  3. Printed Name: Page 1 of 9

    E-Print Network [OSTI]

    Walba, David

    print your name on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6Printed Name: Page 1 of 9 CHEM 3311 (300), Fall 2014 Professor Walba Third Hour Exam November 18: _____________________________ Recitation day and time: __________________________ This is a closed-book exam. The use of notes, calculators

  4. Individual patient data meta-analysis for the clinical assessment of coronary computed tomography angiography: protocol of the Collaborative Meta-Analysis of Cardiac CT (CoMe-CCT)

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    Feyter PJ: 64-slice computed tomography coronary angiographyof 64-slice computed tomography coronary angiography inmultislice spiral computed tomography: impact of heart rate.

  5. Low fingertip temperature rebound measured by digital thermal monitoring strongly correlates with the presence and extent of coronary artery disease diagnosed by 64-slice multi-detector computed tomography

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    64-slice multi-detector computed tomography Naser Ahmadi ÆÁ Framingham risk score Á Computed tomography angiography Áultra- sound, computed tomography, magnetic resonance

  6. An Algorithm for Computing Customized 3D Printed Implants with Curvature Constrained Channels for Enhancing

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    An Algorithm for Computing Customized 3D Printed Implants with Curvature Constrained Channels results in 3D printing and steerable needle motion planning to create customized implants containing

  7. Print-and-Peel Fabrication for Microfluidics: What’s in it for Biomedical Applications?

    E-Print Network [OSTI]

    Thomas, Marlon S.; Millare, Brent; Clift, Joseph M.; Bao, Duoduo; Hong, Connie; Vullev, Valentine I.

    2010-01-01T23:59:59.000Z

    of direct three-dimensional (3D) printing of masters using ahave the capability for 3D printing, and hence, for directly

  8. aligned single-walled carbon: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Page Topic Index 1 Printed Multilayer Superstructures of Aligned Single-Walled Carbon Materials Science Websites Summary: Printed Multilayer Superstructures of Aligned...

  9. The Future of Manufacturing Takes Shape: 3D Printed Car on Display...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Lead, Advanced Manufacturing Office Additive manufacturing - often referred to as 3D printing - is a revolutionary way to design and build products. Until now, 3D printing has...

  10. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

    1991-08-27T23:59:59.000Z

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

  11. Using electrical impedance tomography to map subsurface hydraulic conductivity

    DOE Patents [OSTI]

    Berryman, James G. (Danville, CA); Daily, William D. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Roberts, Jeffery J. (Livermore, CA)

    2000-01-01T23:59:59.000Z

    The use of Electrical Impedance Tomography (EIT) to map subsurface hydraulic conductivity. EIT can be used to map hydraulic conductivity in the subsurface where measurements of both amplitude and phase are made. Hydraulic conductivity depends on at least two parameters: porosity and a length scale parameter. Electrical Resistance Tomography (ERT) measures and maps electrical conductivity (which can be related to porosity) in three dimensions. By introducing phase measurements along with amplitude, the desired additional measurement of a pertinent length scale can be achieved. Hydraulic conductivity controls the ability to flush unwanted fluid contaminants from the surface. Thus inexpensive maps of hydraulic conductivity would improve planning strategies for subsequent remediation efforts. Fluid permeability is also of importance for oil field exploitation and thus detailed knowledge of fluid permeability distribution in three-dimension (3-D) would be a great boon to petroleum reservoir analysts.

  12. Quantum tomography meets dynamical systems and bifurcations theory

    SciTech Connect (OSTI)

    Goyeneche, D., E-mail: dardo.goyeneche@cefop.udec.cl [Departamento de Fisíca, Universidad de Concepción, Casilla 160-C, Concepción, Chile and Center for Optics and Photonics, Universidad de Concepción, Casilla 4012, Concepción (Chile); Torre, A. C. de la [Departamento de Física, Universidad Nacional de Mar del Plata, IFIMAR-CONICET, Dean Funes 3350, 7600 Mar del Plata (Argentina)

    2014-06-15T23:59:59.000Z

    A powerful tool for studying geometrical problems in Hilbert spaces is developed. We demonstrate the convergence and robustness of our method in every dimension by considering dynamical systems theory. This method provides numerical solutions to hard problems involving many coupled nonlinear equations in low and high dimensions (e.g., quantum tomography problem, existence and classification of Pauli partners, mutually unbiased bases, complex Hadamard matrices, equiangular tight frames, etc.). Additionally, this tool can be used to find analytical solutions and also to implicitly prove the existence of solutions. Here, we develop the theory for the quantum pure state tomography problem in finite dimensions but this approach is straightforwardly extended to the rest of the problems. We prove that solutions are always attractive fixed points of a nonlinear operator explicitly given. As an application, we show that the statistics collected from three random orthonormal bases is enough to reconstruct pure states from experimental (noisy) data in every dimension d ? 32.

  13. High Resolution Muon Computed Tomography at Neutrino Beam Facilities

    E-Print Network [OSTI]

    Suerfu, Burkhant

    2015-01-01T23:59:59.000Z

    X-ray computed tomography (CT) has an indispensable role in constructing 3D images of objects made from light materials. However, limited by absorption coefficients, X-rays cannot deeply penetrate materials such as copper and lead. Here we show via simulation that muon beams can provide high resolution tomographic images of dense objects and of structures within the interior of dense objects. The effects of resolution broadening from multiple scattering diminish with increasing muon momentum. As the momentum of the muon increases, the contrast of the image goes down and therefore requires higher resolution in the muon spectrometer to resolve the image. The variance of the measured muon momentum reaches a minimum and then increases with increasing muon momentum. The impact of the increase in variance is to require a higher integrated muon flux to reduce fluctuations. The flux requirements and level of contrast needed for high resolution muon computed tomography are well matched to the muons produced in the pio...

  14. Discussion - Next Step for Fukushima Daiichi Muon Tomography

    SciTech Connect (OSTI)

    Miyadera, Haruo [Los Alamos National Laboratory

    2012-08-13T23:59:59.000Z

    Specification of Fukushima Daiichi Muon Tomography (FMT): (1) 18-feet (5.5-m) drift tube, 2-inch (5-cm) diameter; (2) 108 tubes per layer; (3) Unit layer = 2 layer (detection efficiency: 0.96 x 0.96 = 92%); (4) 12 or 16 layer per module; (5) 16 layers allows momentum analysis at 30% level; (6) 2 module per super module (5.5 x 11 m{sup 2}); and (7) FMT = 2 super module. By deploying MMT next to a research reactor, we will be able to measure the impact of low level radiation fields on muon tomography and reconstruction processes. Radiation level during reactor operation is {approx}50 {micro}Sv/h which provides similar radiation environment of inside the FMT radiation shield at Fukushima Daiichi. We will implement coincidence algorithm on the FPGA board.

  15. Practical variational tomography for critical 1D systems

    E-Print Network [OSTI]

    Jong Yeon Lee; Olivier Landon-Cardinal

    2014-12-01T23:59:59.000Z

    We improve upon a recently introduced efficient quantum state reconstruction procedure targeted to states well-approximated by the multi-scale entanglement renormalization ansatz (MERA), e.g., ground states of critical models. We show how to numerically select a subset of experimentally accessible measurements which maximizes information extraction about renormalized particles, thus dramatically reducing the required number of physical measurements. We numerically estimate the number of measurements required to characterize the ground state of the critical 1D Ising (resp. XX) model and find that MERA tomography on 16-qubit (resp. 24-qubit) systems requires the same experimental effort than brute-force tomography on 8 qubits. We derive a bound computable from experimental data which certifies the distance between the experimental and reconstructed states.

  16. Systematic errors in current quantum state tomography tools

    E-Print Network [OSTI]

    Christian Schwemmer; Lukas Knips; Daniel Richart; Tobias Moroder; Matthias Kleinmann; Otfried Gühne; Harald Weinfurter

    2014-07-22T23:59:59.000Z

    Common tools for obtaining physical density matrices in experimental quantum state tomography are shown here to cause systematic errors. For example, using maximum likelihood or least squares optimization for state reconstruction, we observe a systematic underestimation of the fidelity and an overestimation of entanglement. A solution for this problem can be achieved by a linear evaluation of the data yielding reliable and computational simple bounds including error bars.

  17. Photoacoustic computed tomography in biological tissues: algorithms and breast imaging

    E-Print Network [OSTI]

    Xu, Minghua

    2004-11-15T23:59:59.000Z

    are investigated in Chapter III and IV, respectively. Finally, a prototype of an RF-induced PA imaging system is introduced and experiments using phantom samples as well as a preliminary study of breast imaging for cancer detection are reported in Chapter V... PHOTOACOUSTIC COMPUTED TOMOGRAPHY IN BIOLOGICAL TISSUES: ALGORITHMS AND BREAST IMAGING A Dissertation by MINGHUA XU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

  18. Coral Extension Rate Analysis Using Computed Axial Tomography

    E-Print Network [OSTI]

    Yudelman, Eleanor Ann

    2014-01-10T23:59:59.000Z

    CORAL EXTENSION RATE ANALYSIS USING COMPUTED AXIAL TOMOGRAPHY A Thesis by ELEANOR ANN YUDELMAN Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE Chair of Committee, Niall Slowey Committee Members, Deborah Thomas Benjamin Giese George P. Schmahl Head of Department, Deborah Thomas May 2014 Major Subject: Oceanography Copyright 2014 Eleanor Ann Yudelman ii ABSTRACT...

  19. ?A cylindrical specimen holder for electron cryo-tomography

    E-Print Network [OSTI]

    Palmer, Colin Michael

    2013-03-12T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . . . . 57 3.6 Characterisation of carbon nanopipettes . . . . . . . . . . . . . . . . 59 3.7 Discussion of the manufacturing process . . . . . . . . . . . . . . . . 63 4 Cryo-tomography 67 4.1 Specimen preparation I... . . . . . . . . . . . . . . . . . 60 3.7 Elemental maps and longitudinal EDX linescan of a carbon nanopipette 61 3.8 Transverse EDX linescan of a carbon nanopipette . . . . . . . . . . . 62 4.1 Transmission electron micrograph of a blocked carbon nanopipette tip 68 4.2 A carbon...

  20. Recent developments in guided wave travel time tomography

    SciTech Connect (OSTI)

    Zon, Tim van; Volker, Arno [TNO, Stieltjesweg 1, P.O. box 155 2600 AD Delft (Netherlands)

    2014-02-18T23:59:59.000Z

    The concept of predictive maintenance using permanent sensors that monitor the integrity of an installation is an interesting addition to the current method of periodic inspections. Guided wave tomography had been developed to create a map of the wall thickness using the travel times of guided waves. It can be used for both monitoring and for inspection of pipe-segments that are difficult to access, for instance at the location of pipe-supports. An important outcome of the tomography is the minimum remaining wall thickness, as this is critical in the scheduling of a replacement of the pipe-segment. In order to improve the sizing accuracy we have improved the tomography scheme. A number of major improvements have been realized allowing to extend the application envelope to pipes with a larger wall thickness and to larger distances between the transducer rings. Simulation results indicate that the sizing accuracy has improved and that is now possible to have a spacing of 8 meter between the source-ring and the receiver-ring. Additionally a reduction of the number of sensors required might be possible as well.

  1. Preprocessing of backprojection images in the McClellan Nuclear Radiation Center tomography system

    E-Print Network [OSTI]

    Gibbons, Matthew R.; Shields, Kevin

    1998-01-01T23:59:59.000Z

    Images in the McClellan Nuclear Radiation Center TomographyBays,” McClellan Nuclear Radiation Center report MNRC-0057-

  2. Software-defined Radio Based Wireless Tomography: Experimental Demonstration and Verification

    SciTech Connect (OSTI)

    Bonior, Jason D [ORNL; Hu, Zhen [Tennessee Technological University; Guo, Terry N. [Tennessee Technological University; Qiu, Robert C. [Tennessee Technological University; Browning, James P. [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Wicks, Michael C. [University of Dayton Research Institute

    2015-01-01T23:59:59.000Z

    This letter presents an experimental demonstration of software-defined-radio-based wireless tomography using computer-hosted radio devices called Universal Software Radio Peripheral (USRP). This experimental brief follows our vision and previous theoretical study of wireless tomography that combines wireless communication and RF tomography to provide a novel approach to remote sensing. Automatic data acquisition is performed inside an RF anechoic chamber. Semidefinite relaxation is used for phase retrieval, and the Born iterative method is utilized for imaging the target. Experimental results are presented, validating our vision of wireless tomography.

  3. A rapid method for converting medical Computed Tomography scanner topogram attenuation scale to Hounsfield Unit scale and to obtain relative density values

    E-Print Network [OSTI]

    Long, Bernard

    A rapid method for converting medical Computed Tomography scanner topogram attenuation scale online 17 July 2008 Keywords: Computed Tomography Attenuation Density calibration Minerals Medical Computed Tomography scanners permit to rapidly obtain qualitative and quantitative information on objects

  4. Electrical & Computer Engineering S E M I N A R

    E-Print Network [OSTI]

    Koppelman, David M.

    in tissue tomography, wearable sensors, conductive threads, flexible 3-D printed electronics, solar cells

  5. A method for dating early books and prints using image analysis

    E-Print Network [OSTI]

    Hedges, Blair

    by Rembrandt (Ash & Fletcher 1998) and Shakespeare (Hunter 2001). Occasionally, marks in prints that resulted

  6. Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III

    E-Print Network [OSTI]

    Fleming, Paul D. "Dan"

    Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III for 3D printing comprises different waxes, tackifier and plasticizer resins, rheology modifiers, and UV rheological (or flow) behavior. 1 3D printing, direct ink-jet printing, and related approaches such as hot

  7. The Vector representation of the Standard Quantum Process Tomography

    E-Print Network [OSTI]

    Wu Xiaohua

    2012-12-01T23:59:59.000Z

    The characterization of the evolution of a quantum system is one of the main tasks to accomplish to achieve quantum information processing. The standard quantum process tomography (SQPT) has the unique property that it can be applied without introducing any additional quantum resources. In present work, we shall focus on the following two topics about the SQPT. At first, in the SQPT protocol for a $d$-dimensional system, one should encounter a problem in solving of a set of $d^4$ linear equations in order to get the matrix containing the complete information about the unknown quantum channel. Until now, the general form of the solution is unknown. And a long existed conviction is that the solutions are not unique. Here, we shall develop a self-consistent scheme, in which bounded linear operators are presented by vectors, to construct the set of linear equations. With the famous Cramer's rule for the set of linear equations, we are able to give the general form of the solution and prove that it is unique. In second, the central idea of the SQPT is to prepare a set of linearly independent inputs and measuring the outputs via the quantum state tomography (QST). Letting the inputs and the measurements be prepared by two sets of the rank-one positive-operator-valued measures [POVMs], where each POVM is supposed to be linearly independent and informationally complete (IC), we observe that SQPT now is equivalent to deciding a unknown state with a set of product IC-POVM in the $d^2$-dimensional Hilbert space. Following the general linear state tomography theory, we show that the product symmetric IC-POVM should minimize the mean-square Hilbert-Schmidt distance between the estimator and the true states. So, an optimal SQPT can be realized by preparing both the inputs and the measurements as the symmetric IC-POVM.

  8. Tomography increases key rates of quantum-key-distribution protocols

    E-Print Network [OSTI]

    Shun Watanabe; Ryutaroh Matsumoto; Tomohiko Uyematsu

    2008-07-22T23:59:59.000Z

    We construct a practically implementable classical processing for the BB84 protocol and the six-state protocol that fully utilizes the accurate channel estimation method, which is also known as the quantum tomography. Our proposed processing yields at least as high key rate as the standard processing by Shor and Preskill. We show two examples of quantum channels over which the key rate of our proposed processing is strictly higher than the standard processing. In the second example, the BB84 protocol with our proposed processing yields a positive key rate even though the so-called error rate is higher than the 25% limit.

  9. Relation between quantum tomography and optical Fresnel transform

    E-Print Network [OSTI]

    Hong-yi Fan; Li-yun Hu

    2008-01-13T23:59:59.000Z

    Corresponding to optical Fresnel transformation characteristic of ray transfer matrix elements (A;B;C;D); AD-BC = 1, there exists Fresnel operator F(A;B;C;D) in quantum optics, we show that under the Fresnel transformation the pure position density |x>_rs,rs__rs,rs_Fresnel quadrature phase is the tomography (Radon transform of Wigner function), and the tomogram of a state |phi> is just the wave function of its Fresnel transformed state F|phi>, i.e. rs_= . Similarly, we find F|p>_rs,rs_

  10. Effect of Contrast Agent Charge on Visualization of Articular Cartilage Using Computed Tomography: Exploiting Electrostatic Interactions for Improved

    E-Print Network [OSTI]

    Effect of Contrast Agent Charge on Visualization of Articular Cartilage Using Computed Tomography such as those found in cartilage. Here, we report the synthesis of new iodinated cationic computed tomography

  11. Localization of Competing Metals (Ni, Co, and Zn) in Alyssum using micro-XRF and Tomography. (3564)

    E-Print Network [OSTI]

    Sparks, Donald L.

    Localization of Competing Metals (Ni, Co, and Zn) in Alyssum using micro-XRF and Tomography. (3564 and observed metal localization in root and shoot tissue using synchrotron based micro-XRF and tomography

  12. WIND TOMOGRAPHY IN BINARY SYSTEMS O.Knill, R.Dgani and M.Vogel

    E-Print Network [OSTI]

    Knill, Oliver

    WIND TOMOGRAPHY IN BINARY SYSTEMS O.Knill, R.Dgani and M.Vogel ETH-Zurich, CH-8092, Switzerland method is particularly suitable for determining the velocity laws of stellar winds. 1. WIND TOMOGRAPHY AND ABEL'S INTEGRAL Binary systems in which a compact, point-like radiation source shines through the wind

  13. Photoacoustic tomography of biological tissues with high cross-section resolution: Reconstruction and experiment

    E-Print Network [OSTI]

    Wang, Lihong

    27 November 2002 A modified back-projection approach deduced from an exact reconstruction solution was applied to our photoacoustic tomography of the optical absorption in biological tissues. Pulses from a Ti:sap a spatial resolution around 10 m.8 All of the above photoacoustic tomography systems can be categorized

  14. Electrical impedance tomography and Calderon's Department of Mathematics, University of Washington, Seattle, WA 98195, USA

    E-Print Network [OSTI]

    Uhlmann, Gunther

    Electrical impedance tomography and Calder´on's problem G Uhlmann Department of Mathematics, University of Washington, Seattle, WA 98195, USA E-mail: gunther@math.washington.edu Abstract. We survey mathematical developments in the inverse method of Electrical Impedance Tomography which consists

  15. Analysis of hydraulic tomography using temporal moments of drawdown recovery data

    E-Print Network [OSTI]

    Daniels, Jeffrey J.

    Analysis of hydraulic tomography using temporal moments of drawdown recovery data Junfeng Zhu 2006. [1] Transient hydraulic tomography (THT) is a potentially cost-effective and high- resolution technique for mapping spatial distributions of the hydraulic conductivity and specific storage in aquifers

  16. Hydraulic conductivity imaging from 3-D transient hydraulic tomography at several pumping/observation densities

    E-Print Network [OSTI]

    Barrash, Warren

    Hydraulic conductivity imaging from 3-D transient hydraulic tomography at several pumping August 2013; accepted 7 September 2013; published 13 November 2013. [1] 3-D Hydraulic tomography (3-D HT (primarily hydraulic conductivity, K) is estimated by joint inversion of head change data from multiple

  17. Scanning thermoacoustic tomography in biological tissue Geng Ku and Lihong V. Wanga)

    E-Print Network [OSTI]

    Wang, Lihong

    Scanning thermoacoustic tomography in biological tissue Geng Ku and Lihong V. Wanga) Optical-induced thermoacoustic tomography was explored to image biological tissue. Short microwave pulses irradiated tissue to generate acoustic waves by thermoelastic expansion. The microwave-induced thermoacoustic waves were

  18. Pulsed-microwave-induced thermoacoustic tomography: Filtered backprojection in a circular measurement configuration

    E-Print Network [OSTI]

    Wang, Lihong

    Pulsed-microwave-induced thermoacoustic tomography: Filtered backprojection in a circular-microwave-induced thermoacoustic tomography in biological tissues is pre- sented. A filtered backprojection algorithm based on rigorous theory is used to reconstruct the cross-sectional image from a thermoacoustic measurement

  19. Determining both sound speed and internal source in thermo- and photo-acoustic tomography

    E-Print Network [OSTI]

    Hongyu Liu; Gunther Uhlmann

    2015-02-04T23:59:59.000Z

    This paper concerns thermoacoustic tomography and photoacoustic tomography, two couple-physics imaging modalities that attempt to combine the high resolution of ultrasound and the high contrast capabilities of electromagnetic waves. We give sufficient conditions to recover both the sound speed of the medium being probed and the source.

  20. PERTURBATION-BASED ERROR ANALYSIS OF ITERATIVE IMAGE RECONSTRUCTION ALGORITHM FOR X-RAY COMPUTED TOMOGRAPHY

    E-Print Network [OSTI]

    Fessler, Jeffrey A.

    -ray computed tomography. The effects of the quantization error in forward-projection, back computed tomography (CT) have been proposed to improve image quality and reduce dose [1]. These methodsPERTURBATION-BASED ERROR ANALYSIS OF ITERATIVE IMAGE RECONSTRUCTION ALGORITHM FOR X-RAY COMPUTED

  1. Penalized Weighted Least-Squares Approach for Low-Dose X-Ray Computed Tomography

    E-Print Network [OSTI]

    Penalized Weighted Least-Squares Approach for Low-Dose X- Ray Computed Tomography Jing Wang*1, noise-resolution tradeoff, ROC curve. 1. INTRODUCTION Low-dose X-ray computed tomography (CT) imaging Military Medical University, Xi'an, Shaanxi 710032, China ABSTRACT The noise of low-dose computed

  2. Using X-ray computed tomography in hydrology: systems, resolutions, and limitations

    E-Print Network [OSTI]

    Wildenschild, Dorthe

    Using X-ray computed tomography in hydrology: systems, resolutions, and limitations D to characterize phase distribution and pore geometry in porous media using non-destructive X-ray computed tomography (CT). We present qualitative and quantitative CT results for partially saturated media, obtained

  3. Poly(iohexol) Nanoparticles As Contrast Agents for in Vivo Xray Computed Tomography Imaging

    E-Print Network [OSTI]

    Cheng, Jianjun

    Poly(iohexol) Nanoparticles As Contrast Agents for in Vivo Xray Computed Tomography Imaging Qian for in vivo X-ray computed tomography (CT) imaging. Compared to conventional small-molecule contrast agents with improved diagnosis accuracy over a broad time frame without multiple administrations. X-ray computed

  4. Quantitative Computed Tomography Analysis of Local Chemotherapy in Liver Tissue After

    E-Print Network [OSTI]

    Gao, Jinming

    Quantitative Computed Tomography Analysis of Local Chemotherapy in Liver Tissue After; controlled release drug delivery; radiofrequency ablation; computed tomography. © AUR, 2004 Acad Radiol 2004, MS, David L. Wilson, PhD, John R. Haaga, MD, Jinming Gao, PhD Rationale and Objectives. Computed

  5. Correction to "Threedimensional computational axial tomography scan of a volcano with cosmic ray muon radiography"

    E-Print Network [OSTI]

    Aoki, Yosuke

    Correction to "Threedimensional computational axial tomography scan of a volcano with cosmic ray.1029/2011JB008256. [1] In the paper "Threedimensional computational axial tomography scan of a volcano. Aoki, R. Nishiyama, D. Shoji, and H. Tsuiji (2011), Correction to "Threedimensional computational axial

  6. Computer representation of the model covariance function resulting from travel-time tomography

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Computer representation of the model covariance function resulting from travel-time tomography Lud a supplement to the paper by Klime#20;s (2002b) on the stochastic travel{time tomography. It contains brief covariance function is a function of 6 coordinates with pro- nounced singularities. The computer

  7. Classification and volumetric analysis of temporal bone pneumatization using cone beam computed tomography

    E-Print Network [OSTI]

    Terasaki, Mark

    bone pneumatization in adults using cone beam computed tomography (CBCT) scans. Study Design. A total Oral Pathol Oral Radiol 2014;117:376-384) The advances in cone beam computed tomography (CBCT) overClassification and volumetric analysis of temporal bone pneumatization using cone beam computed

  8. Frequency domain phase-resolved optical Doppler and Doppler variance tomography

    E-Print Network [OSTI]

    Chen, Zhongping

    ), is capable of measuring micro- flows using the optical Doppler effect [1,2]. Early ODT systems were unableFrequency domain phase-resolved optical Doppler and Doppler variance tomography Lei Wang a phase-resolved optical Doppler tomography (ODT) was developed with Doppler variance imag- ing capability

  9. Seismic tomography constraints on reconstructing the Philippine Sea Plate and its margin

    E-Print Network [OSTI]

    Handayani, Lina

    2005-02-17T23:59:59.000Z

    ............................................................. 36 Japan Subduction Zone.................................................................. 41 Izu-Bonin Subduction Zone........................................................... 41 Ryukyu Subduction Zone.................................. 38 3.5 P-wave seismic tomography cross sections across Japan (C), Izu-Bonin(D), Mariana (E) and Java (F)......................................... 39 3.6 Tomography cross sections 1 to 5...

  10. Using computerized tomography to determine ionospheric structures. Part 1, Notivation and basic approaches

    SciTech Connect (OSTI)

    Vittitoe, C.N.

    1993-08-01T23:59:59.000Z

    Properties of the ionosphere are reviewed along with its correlations with other geophysical phenomena and with applications of ionospheric studies to communication, navigation, and surveillance systems. Computer tomography is identified as a method to determine the detailed, three-dimensional distribution of electron density within the ionosphere. Several tomography methods are described, with a basic approach illustrated by an example. Limitations are identified.

  11. Cloud tomography: Role of constraints and a new algorithm Dong Huang,1

    E-Print Network [OSTI]

    Cloud tomography: Role of constraints and a new algorithm Dong Huang,1 Yangang Liu,1 and Warren 2008. [1] Retrieving spatial distributions of cloud liquid water content from limited-angle emission data (passive microwave cloud tomography) is ill-posed, and a small inaccuracy in the data and

  12. Data-driven classification of ventilated lung tissues using electrical impedance tomography

    E-Print Network [OSTI]

    Adler, Andy

    Data-driven classification of ventilated lung tissues using electrical impedance tomography Camille for identifying ventilated lung regions utilizing electrical impedance tomography (EIT) images rely on dividing of a data-driven classification method to identify ventilated lung ROI based on forming k clusters from

  13. Automatic 3D Registration of Lung Surfaces in Computed Tomography Scans

    E-Print Network [OSTI]

    Automatic 3D Registration of Lung Surfaces in Computed Tomography Scans Margrit Betke, PhD1 scheme until the registration performance is sufficient. We applied our method to register the 3D lung computed tomography (CT) has become a well-established means of diag- nosing primary lung cancer

  14. Automatic 3D Registration of Lung Surfaces in Computed Tomography Scans

    E-Print Network [OSTI]

    Automatic 3D Registration of Lung Surfaces in Computed Tomography Scans Margrit Betke, PhD 1 lung surfaces of 11 pairs of chest CT scans and report promising registration performance. 1 1 Introduction Chest computed tomography (CT) has become a well­established means of diag­ nosing primary lung

  15. Introducing Minimum Fisher Regularisation Tomography to Bolometric and Soft X-ray Diagnostic Systems of the COMPASS Tokamak

    E-Print Network [OSTI]

    Introducing Minimum Fisher Regularisation Tomography to Bolometric and Soft X-ray Diagnostic Systems of the COMPASS Tokamak

  16. articular prosthetic device: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of variable impedance prosthetic sockets for trans-tibial amputees : polyjet matrix 3D printing of comfortable prosthetic sockets using digital anatomical data MIT - DSpace...

  17. artificially generated gravity: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (Nolfi and Floreano, 2000), neural networks design files of body com- ponents for 3D printing, and for compiling neural-network controllers to run artificial neural networks....

  18. advanced lithium titanate: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MEMS has been limited due to the lack of process compatibility with existing MEMS manufacturing techniques. Direct printing of thin films eliminates the need for...

  19. advanced hydrotest facility: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    however a high end product, which can be itself subject to printed circuit board manufacturing control problems that could greatly affect its quality control. In order to study...

  20. additional designations foreign: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    76 International Mobility and Foreign Students Service International Activities for didactics office Mathematics Websites Summary: .unige.itrelint Printed by centro Stampa...

  1. area southwest estonia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Langmuir, Charles H. 130 Southwest MN IPM STUFF All the pestilence that's fit to print Power Transmission, Distribution and Plants Websites Summary: weather Rainfall, air and soil...

  2. acute uncomplicated urinary: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    decision support intervention sites (11 practices) received decision support for acute cough illness through a print-based strategy, the computer-assisted decision support...

  3. acute uncomplicated cystitis: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    decision support intervention sites (11 practices) received decision support for acute cough illness through a print-based strategy, the computer-assisted decision support...

  4. acute uncomplicated plasmodium: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    decision support intervention sites (11 practices) received decision support for acute cough illness through a print-based strategy, the computer-assisted decision support...

  5. acute uncomplicated falciparum: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    decision support intervention sites (11 practices) received decision support for acute cough illness through a print-based strategy, the computer-assisted decision support...

  6. array automated assembly: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: environmental impact Robotics Injection Molding Advanced Polymer Composites 3D Printing 12;In-Mold Assembly: A New manufacturing Approach Introduce multiple...

  7. anna veronika wendland: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Heijbel Storage phosphor autoradiography Tian, Weidong 17 Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III Engineering...

  8. additive stabilization process: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computer Technologies and Information Sciences Websites Summary: prototyping and 3D printing by users both in engineering and the humanities. The proposed digital...

  9. automatic 3d fe: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computer Technologies and Information Sciences Websites Summary: by means of the "3D printing" devices used in mechanical rapid prototyping. Another one is that 3D...

  10. automated dna assembly: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: environmental impact Robotics Injection Molding Advanced Polymer Composites 3D Printing 12;In-Mold Assembly: A New manufacturing Approach Introduce multiple...

  11. andres krumme veronika: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    making volume painting more suitable for creating illustrations 8 Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III Engineering...

  12. automated array assembly: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: environmental impact Robotics Injection Molding Advanced Polymer Composites 3D Printing 12;In-Mold Assembly: A New manufacturing Approach Introduce multiple...

  13. automated 3d correlative: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Bosch, Frdric 8 Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jrmie Dumas Computer Technologies and Information Sciences Websites Summary:...

  14. atomic resolution 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    developed 3D video database of spontaneous facial Cohn, Jeffrey F. 16 Improvement of 3D Printing Resolution by the Development of Shrinkable Materials University of California...

  15. additive main effect: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D...

  16. additional effective dose: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D...

  17. angular resolution 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    developed 3D video database of spontaneous facial Cohn, Jeffrey F. 18 Improvement of 3D Printing Resolution by the Development of Shrinkable Materials University of California...

  18. accumulated hyaluronic acid: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    birefringence microscopy measurements demonstrate a high degree of localized 5 3D printing of hyaluronic acid scaffolds for tissue engineering applications. Open Access...

  19. additive effect catalyseurs: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D...

  20. Making 3D Printed Christmas Ornaments | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    This Contributor Santa's sleigh becomes "Intelligent Machine" this Christmas Using 3D Printing to Redesign Santa's Sleigh A Sneak Peek Into Santa's Smarter Sleigh Subscribe to...

  1. anu tammiste kristi: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    journal and newspaper articles, print and electronic books, websites, etc. Enter your search terms by subject basis, and can be accessed by searching the Library catalogue,...

  2. attalea phalerata palms: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    University of 272 Please consider the environment before printing Europe bars illegal timber from markets Renewable Energy Websites Summary: .U. to prove their wood is legally...

  3. argentine republic analysis: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ar entina (Washington U. S. Oovernamnt Printing Office, 1945), 44, The inportancs to Argentina of foreign nsrkets for its export products did not prevent the developnent, in the...

  4. anesthetics intravenous: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Printed in the USA-3892 www.cognizantcommunication.com Intravenous Administration of 99m Tc-HMPAO-Labeled Human Mesenchymal, Centre Hospitalier Universitaire, Grenoble Cedex 9,...

  5. apolipoprotein forming soluble: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    these is pointed out. Kamal K. Seth 2007-12-03 411 PROGRAM CLARIFICATION RETURN FORM Power Transmission, Distribution and Plants Websites Summary: . This form is printed on...

  6. assuring consumer safety: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    is of great significance. unknown authors 412 Assuring Equity Through Health and Health Care Reform Conference Registration Information (Type or Print) Biology and Medicine...

  7. ancient iberian brown: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: Screen Esc Print Version Interactive Discussion EGU Abstract Wind speed data obtained from the National-March) wind in- dices for the western Iberian...

  8. anatomic variables affecting: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of variable impedance prosthetic sockets for trans-tibial amputees : polyjet matrix 3D printing of comfortable prosthetic sockets using digital anatomical data MIT - DSpace...

  9. aluminium crafts ways: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Digital Practice within Contemporary Craft MIT - DSpace Summary: Contemporary 3D printing and traditional craft rarely meet in the same creation. They tend to live in...

  10. assessing mechanical function: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of multiple functions into simple topologies, by embedding sensors and actuators such as 3D printing with materials specialized in electro- mechanical sensing and actuation in...

  11. act devices: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Department, UC San Diego tkohno introduce the area of remote physical device finger- printing, or fingerprinting a physical device, as opposed to an operating system or class of...

  12. atrial mechanical function: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of multiple functions into simple topologies, by embedding sensors and actuators such as 3D printing with materials specialized in electro- mechanical sensing and actuation in...

  13. additional oxygenated functional: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    will be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D...

  14. acid conductances govern: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Agricultural Drainage; Geotechnical Julien, Pierre Y. 333 U.S. GOVERNMENT PRINTING OFFICE WASHINGTON Plasma Physics and Fusion Websites Summary: U.S. GOVERNMENT...

  15. aligned carbon nanotube: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Contact Transfer Printing of Aligned Carbon Nanotube Patterns and Characterization materials. For many promising nanomaterials, includ- ing carbon nanotubes (CNTs), major...

  16. aligned carbon nanotubes: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Contact Transfer Printing of Aligned Carbon Nanotube Patterns and Characterization materials. For many promising nanomaterials, includ- ing carbon nanotubes (CNTs), major...

  17. aged scots pine: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    include plant biomass, topology Boyer, Edmond 22 Plant Ecology 145: 115123, 1999. 1999 Kluwer Academic Publishers. Printed in the Netherlands. 115 Seed predation and...

  18. american ophthalmolgical society: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Eugene, OR 97403 Bothun, Gregory 443 THE ASTRONOMICAL JOURNAL, 118:16181634, 1999 October 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.(...

  19. antigen small molecule: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A printing technology for OLEDs and next the answer? http:www.tranism.comweblogimagesphotovoltaicoled.jpg 12;Like this one --- Yellow resolution 12;From drops to pads ...

  20. affordable nuclear electricity: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    print media, especially local newspapers, and by its obverse Ramakrishnan, Naren 67 Impacts of the Affordable Care Act on Health Insurance Biology and Medicine Websites Summary:...

  1. Novel 3-D Printed Inverters for Electric Vehicles Can Improve...

    Energy Savers [EERE]

    density of the prototype. In addition to the improvements to the inverter itself, 3-D printing uses less energy compared to conventional manufacturing, making the manufacturing...

  2. auriferous alluvial sands: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    STATES OF AMERICA 12; SAND2002-xxxx Unlimited Release Printed August 2002 by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under...

  3. adv funct mater: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Printed in the UK Atomistic simulation Grujicic, Mica 147 J Mater Sci (2006) 41:72327239 7232 Squeeze Infiltration Processing of Nickel Coated Carbon Fiber Reinforced...

  4. active cell surface: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    useful in a wide range of applications such as sensors, electrochemical transistors, solar cells, and printed electronics due to their mechanical, optical and electronic...

  5. alizarine fast green: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    print advertising and trade show booths. The names are probably familiar: Greenguard, Green Seal, Energy Star, Environmentally Preferable Products, SmartWood, Green Label Plus,...

  6. alizarine cyanine green: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    print advertising and trade show booths. The names are probably familiar: Greenguard, Green Seal, Energy Star, Environmentally Preferable Products, SmartWood, Green Label Plus,...

  7. ames expedited site: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Outreach extensive local, national and international interest was generated by web, broadcast and print South Australia 5 Confluences: AnAmericanExpedition Biology and...

  8. Microwave-induced thermoacoustic tomography using multi-sector Minghua Xu, Geng Ku, and Lihong V. Wanga)

    E-Print Network [OSTI]

    Wang, Lihong

    Microwave-induced thermoacoustic tomography using multi-sector scanning Minghua Xu, Geng Ku A study of microwave-induced thermoacoustic tomography of inhomogeneous tissues using multi- sector of Physicists in Medicine. DOI: 10.1118/1.1395037 Key words: microwave, thermoacoustics, tomography, imaging

  9. Papers by Our Team Wang G, Vannier MW: Bolus-chasing angiography with adaptive real-time computed tomography. US

    E-Print Network [OSTI]

    Wang, Ge

    chasing computed tomography (CT) angiography. US patent publication 20060178836, Aug. 10, 2006 Ye Y, Wang:1-20, 2007 Cai Z, McCabe R, Wang G, Bai EW: Bolus chasing computed tomography angiography using local maximum, McCabe R, Wang G: An adaptive optimal control design for bolus chasing computed tomography

  10. Prospects for quantitative computed tomography imaging in the presence of foreign metal bodies using statistical image reconstruction

    E-Print Network [OSTI]

    O'Sullivan, Joseph A.

    Prospects for quantitative computed tomography imaging in the presence of foreign metal bodies September 2002 X-ray computed tomography CT images of patients bearing metal intracavitary applicators of Physicists in Medicine. DOI: 10.1118/1.1509443 Key words: x-ray transmission computed tomography, metal

  11. Simultaneous CT and SPECT tomography using CZT detectors

    DOE Patents [OSTI]

    Paulus, Michael J. (Knoxville, TN); Sari-Sarraf, Hamed (Lubbock, TX); Simpson, Michael L. (Knoxville, TN); Britton, Jr., Charles L. (Alcoa, TN)

    2002-01-01T23:59:59.000Z

    A method for simultaneous transmission x-ray computed tomography (CT) and single photon emission tomography (SPECT) comprises the steps of: injecting a subject with a tracer compound tagged with a .gamma.-ray emitting nuclide; directing an x-ray source toward the subject; rotating the x-ray source around the subject; emitting x-rays during the rotating step; rotating a cadmium zinc telluride (CZT) two-sided detector on an opposite side of the subject from the source; simultaneously detecting the position and energy of each pulsed x-ray and each emitted .gamma.-ray captured by the CZT detector; recording data for each position and each energy of each the captured x-ray and .gamma.-ray; and, creating CT and SPECT images from the recorded data. The transmitted energy levels of the x-rays lower are biased lower than energy levels of the .gamma.-rays. The x-ray source is operated in a continuous mode. The method can be implemented at ambient temperatures.

  12. Statistical analysis of sampling methods in quantum tomography

    E-Print Network [OSTI]

    Thomas Kiesel

    2012-06-07T23:59:59.000Z

    In quantum physics, all measured observables are subject to statistical uncertainties, which arise from the quantum nature as well as the experimental technique. We consider the statistical uncertainty of the so-called sampling method, in which one estimates the expectation value of a given observable by empirical means of suitable pattern functions. We show that if the observable can be written as a function of a single directly measurable operator, the variance of the estimate from the sampling method equals to the quantum mechanical one. In this sense, we say that the estimate is on the quantum mechanical level of uncertainty. In contrast, if the observable depends on non-commuting operators, e.g. different quadratures, the quantum mechanical level of uncertainty is not achieved. The impact of the results on quantum tomography is discussed, and different approaches to quantum tomographic measurements are compared. It is shown explicitly for the estimation of quasiprobabilities of a quantum state, that balanced homodyne tomography does not operate on the quantum mechanical level of uncertainty, while the unbalanced homodyne detection does.

  13. High Resolution Muon Computed Tomography at Neutrino Beam Facilities

    E-Print Network [OSTI]

    Burkhant Suerfu; Christopher G. Tully

    2015-01-28T23:59:59.000Z

    X-ray computed tomography (CT) has an indispensable role in constructing 3D images of objects made from light materials. However, limited by absorption coefficients, X-rays cannot deeply penetrate materials such as copper and lead. Here we show via simulation that muon beams can provide high resolution tomographic images of dense objects and of structures within the interior of dense objects. The effects of resolution broadening from multiple scattering diminish with increasing muon momentum. As the momentum of the muon increases, the contrast of the image goes down and therefore requires higher resolution in the muon spectrometer to resolve the image. The variance of the measured muon momentum reaches a minimum and then increases with increasing muon momentum. The impact of the increase in variance is to require a higher integrated muon flux to reduce fluctuations. The flux requirements and level of contrast needed for high resolution muon computed tomography are well matched to the muons produced in the pion decay pipe at a neutrino beam facility and what can be achieved for momentum resolution in a muon spectrometer. Such an imaging system can be applied in archaeology, art history, engineering, material identification and whenever there is a need to image inside a transportable object constructed of dense materials.

  14. Our Next Two Steps for Fukushima Daiichi Muon Tomography

    SciTech Connect (OSTI)

    Miyadera, Haruo [Los Alamos National Laboratory

    2012-04-11T23:59:59.000Z

    After the vast disasters caused by the great earthquake and tsunami in eastern Japan, we proposed applying our Muon Tomography (MT) technique to help and improve the emergency situation at Fukushima Daiichi using cosmic-ray muons. A reactor-tomography team was formed at LANL which was supported by the Laboratory as a response to a request by the former Japanese Prime Minister, Naoto Kan. Our goal is to help the Japanese people and support remediation of the reactors. At LANL, we have carried out a proof-of-principle technical demonstration and simulation studies that established the feasibility of MT to image a reactor core. This proposal covers the next two critical steps for Fukushima Daiichi Muon Imaging: (1) undertake case study mock-up experiments of Fukushima Daiichi, and (2) system optimization. We requested funding to the US and Japanese government to assess damage of reactors at Fukushima Daiichi. The two steps will bring our project to the 'ready-to-go' level.

  15. LMFBR fuel bundle distortion characterization using neutron tomography and potting

    SciTech Connect (OSTI)

    Betten, P.R.; Tow, D.M.

    1984-05-01T23:59:59.000Z

    A standard liquid metal fast breeder reactor (LMFBR) subassembly used in the Experimental Breeder Reactor II (EBRII) was investigated for fuel bundle distortion by both nondestructive and destructive methods, and the results from both methods were compared. The nondestructive method employed neutron tomography to reconstruct the locations of fuel elements through the use of a maximum entropy reconstruction algorithm known as MENT. The destructive method consisted of ''potting'' (a technique that embeds and permanently fixes the fuel elements in a solid matrix) the subassembly and then cutting and polishing the individual sections. The comparison indicated that the tomography reconstruction provided good results in describing the bundle geometry and spacer-wire locations, with the overall resolution being on the order of a spacer-wire diameter. A dimensional consistency check indicated that the element and spacer-wire dimensions were accurately reproduced in the reconstruction. It was found that in situ fuel elements deform axially in a helical spiral and that the reconstruction was able to identify this helical distortion to within approximately half of a spacerwire diameter.

  16. alpha-11cmethyl-l-tryptophan positron emission: Topics by E-print...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of 2 Positron emission tomography CERN Preprints Summary: Positron Emission Tomography (PET) is a method for measuring biochemical and physiological processes in vivo in a...

  17. 18.9 %-EFFICIENT SCREEN-PRINTED SOLAR CELLS APPLYING A PRINT-ON-PRINT Helge Hannebauer1

    E-Print Network [OSTI]

    is caused by an improved short circuit current of up to 37.4 mA/cm2 which is explained by the reduced loss and hence increase the short circuit current (Jsc). However, in case of standard single printed Ag

  18. Politics and Eschatology: Christian, Muslim and Liberal Traditions and Their Visions of Humankind's Future 

    E-Print Network [OSTI]

    Loureiro, Roberto V.

    2012-02-14T23:59:59.000Z

    determine the political decisions of their members. These authors? overall conclusion is that localized religious agencies are determinant factors in shaping social outlooks which, consequently, exerts decisive influence on their members? broader... that have previously exhibited lengthy and durable patterns of political dormancy, passivity and isolation. (Rinehart 2006, 30) Second, this dissertation?s approach aims to be a unique contribution to political theory by shedding some light on what I...

  19. IN THIS ISSUE 2 3D Printing

    E-Print Network [OSTI]

    Hill, Wendell T.

    IN THIS ISSUE 2 3D Printing in McKeldin 3 Saving WMUC Radio 4 You Did What?!? 7 Dance at UMD, in this issue. Our Terrapin Learning Commons is embracing all things digital, and the acquisition of a 3D printer allows any student the op- portunity to make their visions a reality. This little addition

  20. TechnologyReview.com |Print Forums

    E-Print Network [OSTI]

    TechnologyReview.com |Print Forums International Fusion Research By Ian H. Hutchinson July 8, 2005 The announcement in the last week that the site for the International Thermonuclear Experimental Reactor (ITER) is finally resolved is a source of relief and anticipation to nuclear fusion researchers worldwide. It opens

  1. Printing Techniques for Constructing Structural and

    E-Print Network [OSTI]

    Petta, Jason

    Printing Techniques for Constructing Structural and Compliant Electrochemical Energy Storage, but not electronically conductive #12;Spray Deposition #12;Spray Deposition #12;Using Spray Deposition to Construct 3D · Electrochemical characterization of 3D sprayed cell · Effect of stress on electrochemical performance

  2. Printing a poster? Make an appointment!

    E-Print Network [OSTI]

    Niebur, Ernst

    Formats, click on PNG Change the Resolution to 150 dpi Click Save. #12;In PowerPoint: File Print Select new window that pops up: Change Document Title Click Save Under the Save as Type drop down menu, select PNG Click Save Check your output image for correct orientation and layout. If incorrect, change

  3. PRINT ONLY: GLOBAL WARMING Alexeev V. A.

    E-Print Network [OSTI]

    Rathbun, Julie A.

    PRINT ONLY: GLOBAL WARMING Alexeev V. A. Global Warming: 0.6°C or Less? [#1035] The peculiarities of global warming on the Earth during the last century are discussed. Lunar and Planetary Science XXXVIII (2007) full818.pdf #12;GLOBAL WARMING: 0.6 OR LESS? V.A.Alexeev; Vernadsky Institute of Geochemistry

  4. VSoE RIF Report: Micro-Tomography P.I.: Young H. Cho, Research Assistant Professor, Dept of EE/Dept of CS

    E-Print Network [OSTI]

    Zhou, Chongwu

    the underwater physical phenomena accurately at higher resolution using a network of collaborative, low-cost tomography (micro-tomography), (2) deep water Micro-tomography, and (3) ultra-low power sensor PHY to the expense of buoys, floats or robotic probes. By performing acoustic tomography between shore or buoy

  5. Novel Application of X-ray Computed Tomography: Determination of Gas/Liquid Contact Area and Liquid Holdup in Structured Packing

    E-Print Network [OSTI]

    Eldridge, R. Bruce

    Novel Application of X-ray Computed Tomography: Determination of Gas/Liquid Contact Area and Liquid Company, 1 Neumann Way-M/D Q8, Cincinnati, Ohio 45215 X-ray computed tomography (CT) was utilized Principles of X-ray Computed Tomography. X-ray computed tomography (CT) is used to noninvasively

  6. Data fusion in neutron and X-ray computed tomography

    SciTech Connect (OSTI)

    Schrapp, Michael J. [Siemens AG, Corporate Technology, Otto-Hahn-Ring 6, 81739 Munich (Germany); Physik Department E21, Technische Universität München, James-Franck-Strasse 1, 85747 Garching (Germany); Goldammer, Matthias [Siemens AG, Corporate Technology, Otto-Hahn-Ring 6, 81739 Munich (Germany); Schulz, Michael [Physik Department E21, Technische Universität München, James-Franck-Strasse 1, 85747 Garching (Germany); Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstrasse 1, 85747 Garching (Germany); Issani, Siraj; Bhamidipati, Suryanarayana [Siemens AG, Corporate Technology, Bangalore (India); Böni, Peter [Physik Department E21, Technische Universität München, James-Franck-Strasse 1, 85747 Garching (Germany)

    2014-10-28T23:59:59.000Z

    We present a fusion methodology between neutron and X-ray computed tomography (CT). On the one hand, the inspection by X-ray CT of a wide class of multimaterials in non-destructive testing applications suffers from limited information of object features. On the other hand, neutron imaging can provide complementary data in such a way that the combination of both data sets fully characterizes the object. In this contribution, a novel data fusion procedure, called Fusion Regularized Simultaneous Algebraic Reconstruction Technique, is developed where the X-ray reconstruction is modified to fulfill the available data from the imaging with neutrons. The experiments, which were obtained from an aluminum profile containing a steel screw, and attached carbon fiber plates demonstrate that the image quality in CT can be significantly improved when the proposed fusion method is used.

  7. Fourier-based magnetic induction tomography for mapping resistivity

    SciTech Connect (OSTI)

    Puwal, Steffan; Roth, Bradley J. [Department of Physics, Oakland University, Rochester, Michigan 48309 (United States)

    2011-01-01T23:59:59.000Z

    Magnetic induction tomography is used as an experimental tool for mapping the passive electromagnetic properties of conductors, with the potential for imaging biological tissues. Our numerical approach to solving the inverse problem is to obtain a Fourier expansion of the resistivity and the stream functions of the magnetic fields and eddy current density. Thus, we are able to solve the inverse problem of determining the resistivity from the applied and measured magnetic fields for a two-dimensional conducting plane. When we add noise to the measured magnetic field, we find the fidelity of the measured to the true resistivity is quite robust for increasing levels of noise and increasing distances of the applied and measured field coils from the conducting plane, when properly filtered. We conclude that Fourier methods provide a reliable alternative for solving the inverse problem.

  8. Iterative methods for dose reduction and image enhancement in tomography

    DOE Patents [OSTI]

    Miao, Jianwei; Fahimian, Benjamin Pooya

    2012-09-18T23:59:59.000Z

    A system and method for creating a three dimensional cross sectional image of an object by the reconstruction of its projections that have been iteratively refined through modification in object space and Fourier space is disclosed. The invention provides systems and methods for use with any tomographic imaging system that reconstructs an object from its projections. In one embodiment, the invention presents a method to eliminate interpolations present in conventional tomography. The method has been experimentally shown to provide higher resolution and improved image quality parameters over existing approaches. A primary benefit of the method is radiation dose reduction since the invention can produce an image of a desired quality with a fewer number projections than seen with conventional methods.

  9. 3D Jet Tomography of the Twisted Color Glass Condensate

    E-Print Network [OSTI]

    A. Adil; M. Gyulassy; T. Hirano

    2005-09-23T23:59:59.000Z

    Jet Tomography is proposed as a new test of Color Glass Condensate (CGC) initial conditions in non-central $A+A$ collisions. The $k_{T}$ factorized CGC formalism is used to calculate the rapidity twist in the reaction plane of both the bulk low $p_T 6$ GeV partons. Unlike conventional perturbative QCD, the initial high $p_{T}$ CGC gluons are shown to be twisted even further away from the beam axis than the the low $p_T$ bulk at high rapidities $|\\eta|>2$. Differential directed flow $v_{1}(p_{T}>6,|\\eta|>2)$ is proposed to test this novel high $p_T$ rapidity twist predicted by the CGC model.

  10. Application of a nudging technique to thermoacoustic tomography

    E-Print Network [OSTI]

    Bonnefond, Xavier

    2011-01-01T23:59:59.000Z

    ThermoAcoustic Tomography (TAT) is a promising, non invasive, medical imaging technique whose inverse problem can be formulated as an initial condition reconstruction. In this paper, we introduce a new algorithm originally designed to correct the state of an evolution model, the \\emph{back and forth nudging} (BFN), for the TAT inverse problem. We show that the flexibility of this algorithm enables to consider a quite general framework for TAT. The backward nudging algorithm is studied and a proof of the geometrical convergence rate of the BFN is given. A method based on Conjugate Gradient (CG) is also introduced. Finally, numerical experiments validate the theoretical results with a better BFN convergence rate for more realistic setups and a comparison is established between BFN, CG and a usual inversion method.

  11. Real time evaluation of overranging in helical computed tomography

    E-Print Network [OSTI]

    Trevisan, Diego; Ravanelli, Daniele; Valentini, Aldo

    2014-01-01T23:59:59.000Z

    Overranging or overscanning increases the dose delivered to patients undergoing helical Computed Tomography examinations. In order to reduce it, nowadays most of the multidetector tomographs close the X-ray beam aperture at the scan extremes. This technical innovation, usually referred to as dynamic or adaptive collimation, also influences the overranging assessment methods. In particular, the film free approach proposed in previous studies is not suitable for these modern tomographs. The present study aims to introduce a new method of estimating overranging with real time dosimetry, even suitable for tomographs equipped with adaptive collimation. The approach proposed is very easy to implement and time saving because only a pencil chamber is required. It is also equivalent in precision and in accuracy to the film based one, considered an absolute benchmark.

  12. Initial results of finger imaging using Photoacoustic Computed Tomography

    E-Print Network [OSTI]

    van Es, Peter; Moens, Hein J Bernelot; Steenbergen, Wiendelt; Manohar, Srirang

    2014-01-01T23:59:59.000Z

    We present a photoacoustic computed tomography investigation on a healthy human finger, to image blood vessels with a focus on vascularity across the interphalangeal joints. The cross-sectional images were acquired using an imager specifically developed for this purpose. The images show rich detail of the digital blood vessels with diameters between 100 $\\mu$m and 1.5 mm in various orientations and at various depths. Different vascular layers in the skin including the subpapillary plexus could also be visualized. Acoustic reflections on the finger bone of photoacoustic signals from skin were visible in sequential slice images along the finger except at the location of the joint gaps. Not unexpectedly, the healthy synovial membrane at the joint gaps was not detected due to its small size and normal vascularization. Future research will concentrate on studying digits afflicted with rheumatoid arthritis to detect the inflamed synovium with its heightened vascularization, whose characteristics are potential marke...

  13. Electrical resistance tomography from measurements inside a steel cased borehole

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA); Schenkel, Clifford (Walnut Creek, CA); Ramirez, Abelardo L. (Pleasanton, CA)

    2000-01-01T23:59:59.000Z

    Electrical resistance tomography (ERT) produced from measurements taken inside a steel cased borehole. A tomographic inversion of electrical resistance measurements made within a steel casing was then made for the purpose of imaging the electrical resistivity distribution in the formation remotely from the borehole. The ERT method involves combining electrical resistance measurements made inside a steel casing of a borehole to determine the electrical resistivity in the formation adjacent to the borehole; and the inversion of electrical resistance measurements made from a borehole not cased with an electrically conducting casing to determine the electrical resistivity distribution remotely from a borehole. It has been demonstrated that by using these combined techniques, highly accurate current injection and voltage measurements, made at appropriate points within the casing, can be tomographically inverted to yield useful information outside the borehole casing.

  14. Chemical technology news from across RSC Publishing. Printing solar panels

    E-Print Network [OSTI]

    Rogers, John A.

    Publishing Chemical technology news from across RSC Publishing. Printing solar panels 22 January size) silicon microcells that connect together to form flexible solar panels. By stamping hundreds solar panels 2/8/2010http://www.rsc.org/Publishing/ChemTech/Volume/2010/02/printing_solar.asp #12;Page 2

  15. Software documentation, Page 1, Printed 7/11/01 Documentation

    E-Print Network [OSTI]

    Sommerville, Ian

    Software documentation, Page 1, Printed 7/11/01 Software Documentation Ian Sommerville Lancaster University, UK #12;Software documentation, Page 2, Printed 7/11/01 Introduction All large software development projects, irrespective of application, generate a large amount of associated documentation

  16. Fabrication of asymmetrically coated colloid particles by microcontact printing techniques

    E-Print Network [OSTI]

    Velev, Orlin D.

    Janus particles,4 non-spherical shaped ``acorn'' particles5,6 and unsymmetrical 3D macromoleculesFabrication of asymmetrically coated colloid particles by microcontact printing techniques Olivier particles by using a microcontact printing technique. Films of water-insoluble ionic surfactants deposited

  17. TCAUP FabLab 3D PRINTING ORDER FORM

    E-Print Network [OSTI]

    Kamat, Vineet R.

    TCAUP FabLab 3D PRINTING ORDER FORM: UNIQ NAME: Zcorp 400/310 10"x 8"x 8" ABS 8"x 8"x 12" or 10"x://www.taubmancollege.umich.edu/digital_tech/digital_fablab/ * ZCorp members below .125" are printed at student's own risk and expense. (reasonable .125"breakage

  18. 3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1

    E-Print Network [OSTI]

    Boyer, Edmond

    3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1 , D. De Baere2 , M. Rombouts3 , SSHM system is produced by 3D printing or additive manufacturing. Additive Manufacturing (AM) is a "process to enable its implementation. This work demonstrates the feasibility study of eSHM systems produced by 3D

  19. Shelves in ePrints Soton Creating a shelf

    E-Print Network [OSTI]

    Sóbester, András

    Shelves in ePrints Soton Creating a shelf 1. Log into ePrints and select Manage Shelves towards top Shelf button to create further shelves. When you are ready to make your shelf publicly visible click shelves 1. In the depoit process, click on the Shelves button (prior to the Deposit button

  20. A metallography and x-ray tomography study of spall damage in ultrapure Al

    SciTech Connect (OSTI)

    Qi, M. L. [School of Science, Wuhan University of Technology, Wuhan, Hubei 430070 (China); HPSynC@Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Bie, B. X. [School of Science, Wuhan University of Technology, Wuhan, Hubei 430070 (China); The Peac Institute of Multiscale Sciences and Sichuan University, Chengdu, Sichuan 610207 (China); Zhao, F. P.; Fan, D.; Luo, S. N., E-mail: sluo@pims.ac.cn [The Peac Institute of Multiscale Sciences and Sichuan University, Chengdu, Sichuan 610207 (China); Hu, C. M. [HPSynC@Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); National Key Laboratory of Shock Wave and Detonation Physics, Chinese Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Ran, X. X. [School of Science, Wuhan University of Technology, Wuhan, Hubei 430070 (China); Xiao, X. H. [Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Yang, W. G., E-mail: wenge@aps.anl.gov [HPSynC@Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Li, P. [National Key Laboratory of Shock Wave and Detonation Physics, Chinese Academy of Engineering Physics, Mianyang, Sichuan 621900 (China)

    2014-07-15T23:59:59.000Z

    We characterize spall damage in shock-recovered ultrapure Al with metallography and x-ray tomography. The measured damage profiles in ultrapure Al induced by planar impact at different shock strengths, can be described with a Gaussian function, and showed dependence on shock strengths. Optical metallography is reasonably accurate for damage profile measurements, and agrees within 10–25% with x-ray tomography. Full tomography analysis showed that void size distributions followed a power law with an exponent of ? = 1.5 ± 2.0, which is likely due to void nucleation and growth, and the exponent is considerably smaller than the predictions from percolation models.