3w Transmitted Beam Diagnostic at the Omega Laser Facility PDF Download
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Languages : en
Pages : 5
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A 3? transmitted beam diagnostic has been commissioned on the Omega Laser at the Laboratory for Laser Energetics, University of Rochester [Soures et.al., Laser Part. Beams 11 (1993)]. Transmitted light from one beam is collected by a large focusing mirror and directed onto a diagnostic platform. The near field of the transmitted light is imaged; the system collects information from twice the original f-cone of the beam. Two gated optical cameras capture the near field image of the transmitted light. Thirteen spatial positions around the measurement region are temporally resolved using fast photodiodes to allow a measure of the beam spray evolution. The Forward stimulated Raman scattering and forward simulated Brillion scattering are spectrally and temporally resolved at 5 independent locations within twice the original f-cone. The total transmitted energy is measured in two spectral bands (?? 400 nm and?? 400 nm).
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Category :
Languages : en
Pages : 5
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A 3? transmitted beam diagnostic has been commissioned on the Omega Laser at the Laboratory for Laser Energetics, University of Rochester [Soures et.al., Laser Part. Beams 11 (1993)]. Transmitted light from one beam is collected by a large focusing mirror and directed onto a diagnostic platform. The near field of the transmitted light is imaged; the system collects information from twice the original f-cone of the beam. Two gated optical cameras capture the near field image of the transmitted light. Thirteen spatial positions around the measurement region are temporally resolved using fast photodiodes to allow a measure of the beam spray evolution. The Forward stimulated Raman scattering and forward simulated Brillion scattering are spectrally and temporally resolved at 5 independent locations within twice the original f-cone. The total transmitted energy is measured in two spectral bands (?? 400 nm and?? 400 nm).
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Category :
Languages : en
Pages :
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Author: W. Armstrong
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Category :
Languages : en
Pages : 6
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We have developed and commissioned a transmitted beam diagnostic (TBD) for the 2{omega} high intensity interaction beam at the Omega laser facility. The TBD consists of a bare-surface reflector mounted near the target, which collects and reflects 4% of the transmitted light to a detector assembly outside the vacuum chamber. The detector includes a time integrating near-field camera that measures beam spray, deflection and the absolute transmitted power. We present a detailed description of the instrument and the calibration method and include first measurements on laser heated gasbag targets to demonstrate the performance of the diagnostic.
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Category : Controlled fusion
Languages : en
Pages : 160
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Author: Amy B. Reighard
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Category :
Languages : en
Pages : 410
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Author: R. Griffith
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Category :
Languages : en
Pages : 13
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An ultraviolet high-energy Thomson scattering probe beam has been implemented on the Omega laser facility at the University of Rochester. The new probe operates at a wavelength of 264nm, with a maximum energy of 260J in a pulselength of 1ns. The probe is focused with an F/6.7 lens to a minimum focal spot of 40{micro}m within a pointing tolerance of
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309272246
Category : Science
Languages : en
Pages : 247
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The potential for using fusion energy to produce commercial electric power was first explored in the 1950s. Harnessing fusion energy offers the prospect of a nearly carbon-free energy source with a virtually unlimited supply of fuel. Unlike nuclear fission plants, appropriately designed fusion power plants would not produce the large amounts of high-level nuclear waste that requires long-term disposal. Due to these prospects, many nations have initiated research and development (R&D) programs aimed at developing fusion as an energy source. Two R&D approaches are being explored: magnetic fusion energy (MFE) and inertial fusion energy (IFE). An Assessment of the Prospects for Inertial Fusion Energy describes and assesses the current status of IFE research in the United States; compares the various technical approaches to IFE; and identifies the scientific and engineering challenges associated with developing inertial confinement fusion (ICF) in particular as an energy source. It also provides guidance on an R&D roadmap at the conceptual level for a national program focusing on the design and construction of an inertial fusion energy demonstration plant.
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ISBN:
Category :
Languages : en
Pages : 256
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Category : Nuclear energy
Languages : en
Pages : 870
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Category : Electrooptics
Languages : en
Pages : 756
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