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  • 1
    Electronic Resource
    Electronic Resource
    A dural arteriovenous fistula fed entirely by the lateral sacral artery (1996)
    Springer
    Neuroradiology 38 (1996), S. 618-620 
    Details
    ISSN: 1432-1920
    Keywords: Key words Arteriovenous malformation ; dural ; Internal iliac artery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a spinal dural arteriovenous fistula fed exclusively by the lateral sacral artery to remind neuroradiologists and neurosurgeons that the afferent artery of these lesions may arise from internal iliac arterial branches.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050320
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  • 2
    Electronic Resource
    Electronic Resource
    Zn drops at a Si surface measured by the refracted x-ray fluorescence method (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 8420-8422 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Si and Zn are essentially mutually insoluble. We were able to detect Zn drops at a Si surface by using the refracted x-ray fluorescence method when the Si wafer was implanted with Zn ions at 50 keV up to doses of 1 × 1016 cm−2. The presence of the Zn drops at the Si surface was confirmed both by measuring surface roughness and Rutherford-backscattering spectroscopy spectra.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347411
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  • 3
    Electronic Resource
    Electronic Resource
    Status of the booster synchrotron for SPring-8 : Proceedings of the 5th international conference on synchrotron radiation instrumentation (1995)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 66 (1995), S. 1964-1967 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The specification and the layout of the booster synchrotron for SPring-8 were decided. The synchrotron is designed to accelerate electron or positron beams from 1 to 8 GeV with a repetition cycle of 1 Hz. The construction of the synchrotron was started in 1993. First, one bending, one quadrupole, and one sextupole magnet were made and the results of the magnetic field measurement were acquired. Two septum, one bump, and one kicker magnets for the beam extraction have been made, the field measurement and a few improvements have progressed. The high power test of the first rf cavity was finished successfully. The calibration test of the button position monitor with the signal treatment circuits is advanced now. The residual components of the synchrotron are designed and constructed, and the commissioning of the synchrotron will start in 1996. This paper presents the first measurement of each component. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145771
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of cumulative ablation on the ejection of particulates and molecular species from YBa2Cu3O7−x targets (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 77 (1995), S. 5961-5967 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Effects of cumulative ablation on the ejection of particulates and molecular species in pulsed-laser deposition are studied by Mie scattering and laser-induced fluorescence spectroscopy, respectively. When a fresh target is ablated, a large amount of particulates are ejected during several initial shots and rapidly decreased within the first ten shots of ablation. This is due to the ejection of powder residues which are struck on the target surface during the polishing process. After this period, ejection of particulates increased gradually and almost saturated after 200 shots. The saturation characteristic is empirically formulated as a function of the number of cumulative ablations. On the other hand, ejection of molecular species rapidly decreases during the initial 500 ablations and afterwards decreases more slowly with further ablation. The effects of cumulative ablation on the particle ejection are discussed in conjunction with the structural modification of the ablated surface observed by the scanning electron microscope. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.359178
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  • 5
    Electronic Resource
    Electronic Resource
    Structure and formation of porous Si layers as studied by infrared absorption and Raman scattering (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 4344-4350 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The microscopic structure and formation processes of porous Si layers (PSLs) have been studied by infrared absorption and Raman scattering. How the concentration of HF used during formation affects the vibrational spectra of PSLs has been examined. The IR spectra of as-anodized PSL in the Si-Hx vibration region are quite similar to those of Si(111) or (100) surfaces etched in HF solutions of pH∼2. The amount of dihydrogen adsorbed on the surface increases for lower HF concentrations relative to that of monohydrogen. Fluorine and oxygen are found on PSLs anodized for a long period. The size of the Si particle (or column) is a few nanometers for samples anodized with the solution of HF:H2O=1:1 as estimated from Raman data, and it decreases with a decrease in the HF concentration. No Si nanostructures are detected in the Raman data for the case of HF:H2O:ethanol=1:1:8. The HF concentration dependence of the IR spectra is explained in terms of the change in the size of columns or particles in the PSL. The Si—Si back bond for the surface Si atom terminated by dihydrogen is more stable against oxidation in air than the bond for the atom terminated by monohydrogen. The HF concentration dependence of the electrochemical process is discussed in connection with the relative contribution of electropolishing and pore formation processes. The relation between the photoluminescence intensity and the surface structure is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.357321
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  • 6
    Electronic Resource
    Electronic Resource
    Magnetic properties and Mössbauer study of Fe nanocrystals prepared by the gas-deposition method : The 41st annual conference on magnetism and magnetic materials (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 4736-4738 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Fe nanocrystalline films were prepared by the gas-deposition method (GDM). The films were composed of small particles and their aggregates. With an increase of pressure difference between an evaporation chamber and a deposition chamber, the grain size is slightly reduced and lower coercivity is realized. The Mössbauer spectra consisted of a crystalline component (α-Fe) and a boundary component with a hyperfine field of 310 kOe; no oxide subspectrum was observed. Magnetizations of the samples are around 95% of that of bulk α-Fe. Fe nanocrystals prepared by GDM are found to show good oxidization resistance. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.365446
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  • 7
    Electronic Resource
    Electronic Resource
    The spectro-photovoltaic characteristics of a carbonaceous film/n-type silicon (C/n-Si) photovoltaic cell (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 4078-4080 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A photovoltaic cell with carbonaceous thin film/n-type silicon (C/n-Si) was fabricated utilizing a process in which a carbonaceous thin film was deposited on an n-type silicon substrate by chemical-vapor deposition of 2,5-dimethyl-p-benzoquinone at 500 °C. Under illumination of 15 mW cm−2 light with wavelengths between 400 and 800 nm (xenon arc lamp), a power conversion efficiency (η) of 6.45% was achieved from this photovoltaic cell. This C/n-Si cell has shown a normalized short-circuit-current efficiency of more than 0.85 under illumination of 30 μW cm−2 monochromatic light from 500 to 950 nm. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.117824
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  • 8
    Electronic Resource
    Electronic Resource
    Photodarkening and microcrystallite size in colored filter glasses (1991)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 59 (1991), S. 1690-1692 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is demonstrated for the first time that photodarkening in colored filter glasses is associated with apparent growth of CdSxSe1−x microcrystallites. This is thought to be due to the attraction of impurity ions around the microcrystallites. Both a Q-switched Nd3+:YAG laser and a hybrid mode-locked dye laser are used as the light sources. Microcrystallite growth is directly observed by transmission electron microscopy and by field-emission scanning electron microscopy. Growth is also inferred from local changes in color and measured absorption spectra.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.106219
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  • 9
    Electronic Resource
    Electronic Resource
    Observation of x-ray sheet beam from radioisotopes embedded in thin-film waveguide (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 164-166 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A specific angular distribution of x rays from 111In embedded in a thin-film waveguide (Au film/Langmuir–Blodgett film/Au substrate) is observed by a non-energy-dispersive two-dimensional detector (imaging plate). The angular distribution for the thickness of the upper Au layer of 90 A(ring) can be explained by normal calculation of the optical electromagnetic wave solution of Maxwell's equations for each interface and reciprocity. However, the angular pattern in the upper 400 A(ring) Au thickness layer cannot be accounted for by the normal approach without considering the intensity of the x-ray sheet beam emerging from the end of the multilayer. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.114654
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  • 10
    Electronic Resource
    Electronic Resource
    The junction characteristics of carbonaceous film/n-type silicon (C/n-Si) layer photovoltaic cell (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 3042-3044 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The junction capacitance for a carbonaceous thin-film/n-type silicon layer photovoltaic cell made by chemical vapor deposition of 2,5-dimethyl-p-benzoquinone on a silicon substrate at 500 °C was measured, and an energy band diagram for this junction was sought out. The result confirms that the carbonaceous thin-film/n-type silicon junction is a heterotype junction. Its junction barrier is about 0.54 eV. This junction shows a depletion layer of about 1.1 μm in thickness at zero bias voltage, and most all of which was established in the silicon substrate. A work function of about 5.0 eV for the carbonaceous film was estimated based on the energy-band diagram of this junction. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.116833
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