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  • 1
    Electronic Resource
    Electronic Resource
    Time-resolved measurement of energy and species of an intense pulsed ion beam (1985)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 2279-2282 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A time-resolvable Thomson-parabola spectrometer is developed employing a microchannel-plate image intensifier, which acts as a high-speed shutter (∼5 ns) by gating the applied voltage. Using such a spectrometer, we have achieved the measurement of temporal behavior of beam energy for various ion species of an intense pulsed ion beam extracted from a dual-current-feed magnetically insulated diode. The energy of protons is found to be in a good agreement with the diode voltage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138364
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  • 2
    Electronic Resource
    Electronic Resource
    Transport of an intense pulsed light-ion beam through a plasma channel in the Nagaoka etigo-I
    Amsterdam : Elsevier
    Physics Letters A 89 (1982), S. 235-237 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(82)90888-X
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  • 3
    Electronic Resource
    Electronic Resource
    Mechanism of microwave generation by virtual cathode oscillation (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 982-986 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A simple model is developed to describe the virtual cathode oscillation. With this model, it is found that the frequency dependence of the microwave power gain is determined by the phase relation between the oscillating electric field and the modulated electron beam current. Analytical expressions are given for the frequency dependence of the gain and for estimation of the maximum efficiency of microwave energy extraction from the electron beam. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871377
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  • 4
    Electronic Resource
    Electronic Resource
    Particle-in-cell simulation of spherical plasma focus diode (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 325-331 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A self-magnetically insulated, three-dimensionally focused ion-beam diode, spherical plasma focus diode (SPFD), is studied by numerical simulation using a two-dimensional, electromagnetic, relativistic particle-in-cell computer code. The calculated results of the diode impedance, the ion-current efficiency, and the focusing characteristics of the ion beam are presented. These results, except the data of the ion-beam current, are in good agreement with the experimental results. Since the major ion deflection direction observed experimentally is also obtained in the simulation, it is attempted to optimize the SPFD by correcting the ion deflection with the shape of the diode gap by means of simulations. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871109
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  • 5
    Electronic Resource
    Electronic Resource
    New configuration of a virtual cathode oscillator for microwave generation (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 4635-4640 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new configuration of a virtual cathode oscillator is proposed for high-power microwave generation. Analysis and simulation are carried out to investigate the characteristics of this configuration. In the numerical simulation, the microwave output power of ∼564 MW is obtained with an electron beam of 300 keV in electron energy and 15 kA in beam current, giving a beam-to-microwave efficiency of ∼12.5%. The significant features of the new configuration are (1) the microwave output power is not affected by an electron energy spread up to 6%; and (2) no significant change of the oscillation frequency is observed when the beam current changes from 10 to 20 kA. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870954
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  • 6
    Electronic Resource
    Electronic Resource
    Applications of intense pulsed ion beam to materials sciencef| (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 1 (1994), S. 1730-1737 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In addition to being initially developed as an energy driver for an inertial confinement fusion, an intense, pulsed, light-ion beam (LIB) has been found to be applied to materials science. If a LIB is used to irradiate targets, a high-density "ablation'' plasma is produced near the surface since the range of the LIB in materials is very short. Since the first demonstration of quick preparation of thin films of ZnS by an intense, pulsed, ion-beam evaporation (IBE) using the LIB-produced ablation plasma, various thin films have been successfully prepared, such as of ZnS:Mn, YBaCuO, BaTiO3, cubic BN, SiC, ZrO2, ITO, B, C, and apatite. Some of these data will be presented in this paper, with its analytic solution derived from a one-dimensional, hydrodynamic, adiabatic expansion model for the IBE. The temperature will be deduced using ion-flux signals measured by a biased ion collector. Reasonable agreement is obtained between the experiment and the simulation. High-energy LIB implantation to make chemical compounds and the associated surface modification are also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870677
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  • 7
    Electronic Resource
    Electronic Resource
    Development of high voltage step-up transformer as a substitute for a Marx generator (1997)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 68 (1997), S. 2214-2220 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A new type of pulse transformer has been developed as a substitute for a Marx generator. In the transformer amorphous metallic cores are utilized with windings of cylindrical conductors. As a result, low leakage inductance is realized with high breakdown strength. The coupling coefficient of the transformer is estimated to be more than 0.99. By using the transformer of winding ratio of 1:3, a Blumlein pulse forming line of capacitance 20 nF is successfully charged up to 270 kV by using a capacitor bank of 240 nF, 90 kV. High speed charging of charging time=250 ns is realized with high efficiency of energy transfer (energy transfer efficiency from the capacitor bank to the pulse forming line was evaluated to be 76%). © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148072
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  • 8
    Electronic Resource
    Electronic Resource
    Magnetic pulse compressor using saturable transformer to excite excimer lasers (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 2138-2140 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: To reduce the load on switching elements in the excitation circuit of excimer lasers, a new circuit has been developed to study the basic characteristics, where a saturable transformer is utilized in the magnetic pulse compressor. We have used a saturable transformer with a winding ratio of 1:4. The initial pulse of 8.5 kV, 2.0 kA, 3 μs was transferred to the output pulse of 34 kV, 8 kA, 109 ns, with an energy-transfer efficiency of 58%. Using a saturable inductor as a charging inductor, furthermore, we have succeeded in reduction of the prepulse of the output voltage and enhancement of the energy-transfer efficiency.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1143180
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  • 9
    Electronic Resource
    Electronic Resource
    Conceptual design for a time resolved x-ray imaging system useable in a strong hard x-ray background (1997)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 68 (1997), S. 2046-2050 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A new type of time resolved soft x-ray pinhole camera has been conceptually designed for the measurement of the size of pinched electron beam of sub-mm size in the strong x-ray background. In the camera an x-ray image is converted to an optical image and transferred by an image guide of 1 m length to the place where hard x-ray background is weak. The optical image is intensified and gated by a multichannel plate image intensifier (MCP-II) and recorded on a film. In the test operation, an x-ray image of a flash x-ray source was successfully observed in an open shutter mode operation. The minimum exposure time of the MCP-II was estimated to be 6.5 ns from measurement with a short pulsed laser diode. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148095
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis of nanosize powders of alumina by ablation plasma produced by intense pulsed light-ion beam (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 1214-1216 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Nanosize powders of alumina have been synthesized by high-density ablation plasma produced by the irradiation of an intense, pulsed, light-ion beam on an aluminum target in oxygen. Diameters of the powders, which are observed to be spherical, are typically 5–25 nm. At 1 Torr of oxygen, nanosize powders of aluminum are synthesized with those of a small amount of γ-alumina. At 10 Torr of oxygen, on the other hand, γ-alumina powders are produced with a small amount of aluminum powders. Annealing characteristics in nitrogen have also been studied on the transition from γ- to α-alumina. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.115011
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