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Добірка наукової літератури з теми "High pulsed power systems"

Автор: Grafiati

Опубліковано: 7 вересня 2024

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Статті в журналах з теми "High pulsed power systems"

Chvykov, Vladimir. "High-Power Lasers." Encyclopedia 4, no. 3 (August 9, 2024): 1236–49. http://dx.doi.org/10.3390/encyclopedia4030080.

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High-power lasers play an important role in modern science, industry, and medicine. A significant milestone was reached on 5 December 2022, when Inertial Confinement Nuclear Fusion (ICF) achieved scientific breakeven, releasing more energy than the input laser energy. Additionally, Extreme Ultraviolet Lithography (EUVL) has enabled the development of microchips with 3 nm process nodes, marking a leap in semiconductor technology. These examples, together with the recent achievement of 10 PW (1015 W) laser output, herald remarkable advancements in technology and science. Laser systems are broadly classified based on their operating regimes into two main categories: Continuous Wave (CW) operation, where the laser is continuously pumped and emits a steady beam of light, and the pulsed regime, in which the laser produces single or multiple pulses at various repetition rates. This review will primarily focus on pulsed laser systems, exploring their various types and recent technological advancements.

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Hongchao Hui, Hongchao Hui, Junyong Zhang Junyong Zhang, Xinghua Lu Xinghua Lu, Jiachen Zhang Jiachen Zhang, Xin Chen Xin Chen, Xiuqing Jiang Xiuqing Jiang, Baoqiang Zhu Baoqiang Zhu, and and Zunqi Lin and Zunqi Lin. "Simulation study of broadband long-pulsed amplification in high-power laser systems." Chinese Optics Letters 14, no. 3 (2016): 031405–31408. http://dx.doi.org/10.3788/col201614.031405.

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Dong, Weigang, Lei Chen, Jian Qiu, Haozheng Shi, Hui Zhao, and Kefu Liu. "The Cascade of High-Voltage Pulsed Current Sources." Electronics 13, no. 5 (February 28, 2024): 924. http://dx.doi.org/10.3390/electronics13050924.

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Currently, pulsed adders are used as pulsed voltage sources maturely. However, their use as pulsed current sources is significantly limited due to circuit impedance and the characteristics of power devices. This paper presents a simple yet effective design for a pulsed current source, incorporating a solid-state Marx pulsed adder as the primary power source and an inductor for energy storage. In the pulsed current source, a Marx pulsed adder produces high voltage to charge the inductor. Then, the stored inductance energy is converted to generate current pulses on the load; the amplitude of the pulsed current is unaffected by the load impedance within a certain range. The pulsed current source can be designed as a standard module, and several modules can form a cascade system for producing current pulses with higher voltage. Finally, a pulsed current source was developed, which can produce adjustable current pulses with high voltage. The design principles, control methods and the effects of the distribution parameters are described. The feasibility of the cascade pulsed power system was validated in experiments. Nine modules were connected to generate pulses of current 10 A on a 15 kΩ resistor.

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Chen, Fu-Zen, Yu-Cheng Song, and Fu-Shun Ho. "An Efficiency Improvement Driver for Master Oscillator Power Amplifier Pulsed Laser Systems." Processes 10, no. 6 (June 16, 2022): 1197. http://dx.doi.org/10.3390/pr10061197.

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The master oscillator power amplifier (MOPA) pulsed laser, one of the popular topologies for high-power fiber laser systems, is widely applied in industrial machining laser systems. In MOPA, the low-power pulsed laser, stimulated from a seed laser diode, is amplified by the high- power optical energy from pump laser diodes via the gain fiber. Generally, the high-power pump laser diodes are driven by lossy linear current drivers. The switched mode current drivers boost the driver efficiency but suffer from pulse energy consistency due to the current switching ripple. In this paper, a laser driver system that varies the switching frequency of current source to synchronize with pulsed laser repetition rate is analyzed and implemented. Experimental results are demonstrated using a 20 W pulsed fiber laser system.

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Priputnev P. V., Romanchenko I. V., and Rostov V. V. "Systems and technologies based on nonlinear transmission lines with ferrite (Review)." Technical Physics 68, no. 5 (2023): 555. http://dx.doi.org/10.21883/tp.2023.05.56060.230-22.

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Nonlinear transmission lines with ferrite have been actively developed and studied for about two decades. At the same time, the first works on this topic date back to the middle of the last century. Nonlinear transmission lines with ferrite find their application in various problems of electrophysics, with the greatest application being found in the problems of pulse sharpening, as delay lines and generators of high-power pulses of microwave radiation. The main scientific and technical results of the development of technologies of nonlinear transmission lines with ferrite are presented in chronological order, starting from lines for sharpening the fronts of voltage pulses, ending with multichannel microwave sources based on them. Keywords: high power microwaves, ferromagnetic materials, pulsed power, electromagnetic shock waves.

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Rung, Stefan, Niklas Häcker, and Ralf Hellmann. "Thermal imaging of high power ultrashort pulse laser ablation of alumina towards temperature optimized micro machining strategies." IOP Conference Series: Materials Science and Engineering 1135, no. 1 (November 1, 2021): 012027. http://dx.doi.org/10.1088/1757-899x/1135/1/012027.

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Abstract The application of pulsed laser systems with pulse durations in the pico- and femtosecond regime for material processing is commonly associated with a cold ablation. Due to the minimized interaction-time between the ultrashort laser pulses and the material, this statement is almost valid as long as no heat accumulation effect appears. With the increasing demand of high productivity processes, the average power of ultrashort pulsed laser systems increases above 100 W, which leads, however, to increased thermal effects during laser processing. This is especially important for laser processing of technical ceramics like alumina. Large temperatures gradients, which locally occur during laser processing using high average power could lead to thermal modifications and cracks in the material. In this study, we present a process-optimization method for high power laser ablation of alumina based on thermal imaging. The use of a 2D IR camera enables the estimation of the temperature distribution during the laser processing. We investigate the influence of laser power up to 80 W, pulse duration between 900 fs and 10 ps and processing duration on the resulting material temperature. Beside the material temperature we evaluate the material removal rate and the resulting surface quality.

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Li, Hongda, Bo Zhang, Sergey Sosnovskiy, Long Che, Guimao Zhang, Shuaishuai Liu, and Zhao Jin. "Study of Bipolar Inductively Isolated High-Voltage Pulse Source." Electronics 12, no. 18 (September 13, 2023): 3864. http://dx.doi.org/10.3390/electronics12183864.

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To meet the application requirements of pulsed power technology in wastewater treatment and other aspects (for example, a scenario that requires a high-voltage pulse source that can output a pulse with a rising edge in the nanosecond range and a device that can stabilize the pulse under high-frequency conditions), this paper designed an inductively isolated bipolar high-voltage pulse source. It consists of three parts: the primary charging power supply, the isolated driver circuit, and the pulse-forming circuit. By using inductance instead of traditional resistance isolation, using the inductance for charging and isolation, the inductance can increase the charging voltage of the capacitor, so the circuit can achieve a higher voltage output. The dual-Marx generator parallel connection design of the pulsed power supply topology, using a primary charging power supply for positive and negative polarity charging, can simultaneously output the reverse polarity and size of high-voltage pulses to achieve a bipolar output, so the load has an effect on the pulse. The equipment was selected on the basis of the design of the isolated driver circuit, primary charging power supply circuit, and pulse-forming circuit for the corresponding simulation, and in the experiment to build a principle model, the tests showed that the pulse source output pulse amplitude range was 0~10 kV (the positive pulse voltage was 5 kV, and the negative pulse voltage was −5 kV), the pulse rising edge was approximately 200 ns, the pulse width was 1 μs, and the frequency range was 0~1 kHz for the pulse source frequency. The power supply was designed to be used in applications such as wastewater treatment.

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Singh, S. K., J. H. Murphy, P. W. Eckels, C. J. Mole, A. T. Male, and C. K. Jones. "Impact of high temperature superconductors on pulsed power systems." IEEE Transactions on Magnetics 25, no. 2 (March 1989): 1787–90. http://dx.doi.org/10.1109/20.92648.

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Jackel, S., M. Givon, A. Ludmirsky, S. Eliezer, J. L. Borowitz, B. Arad, A. Zigler, and Y. Gazit. "Multiple-pass amplifiers for high-power laser systems." Laser and Particle Beams 5, no. 1 (February 1987): 115–24. http://dx.doi.org/10.1017/s0263034600002536.

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Multiple-pass amplifiers were configured from Nd:glass rods using polarization and angular coupling techniques. Very high gain (>600) single beam triple-pass booster stages and high gain (30 or 15) single or double-beam double-pass amplifiers were combined to construct a very cost effective high-power (50 GW) pulsed laser system. These techniques were also effectively applied to smaller compact high repetition-rate systems.

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OGUNNIYI, ADERINTO, and HEATHER O'BRIEN. "PULSE EVALUATION AND RELIABILITY ANALYSIS OF 4H-SiC SGTO MODULES." International Journal of High Speed Electronics and Systems 20, no. 03 (September 2011): 441–55. http://dx.doi.org/10.1142/s0129156411006738.

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Army applications require power components that are utilized in pulsed power systems to be reliable and durable, compact, have high power and energy density, and lastly, to be easily integrated into combat vehicles. The U.S. Army Research Laboratory (ARL) is currently investigating silicon carbide Super-gate turn-off thyristors ( SiC SGTOs) to meet the future pulsed power system requirements for the Army. ARL's methodology is to evaluate the device performance in pulsed power circuits that emulate the electrical stresses that the power devices would encounter in a pulsed power system. Each module being evaluated utilized four 0.6 cm2 SiC SGTOs. The packaging design for the module utilizes ThinPak technology. The module has reliably been pulsed over 2000 times at peak currents greater than 8 kA with a pulse width of 170 μs. The module has also been pulsed greater than 3.6 kA at a pulse width of 1 ms, corresponding to an action rate of 7000 A2s and a current density of 2.5 kA/cm2 over the cathode mesa area. This work evaluates SiC SGTO modules under various pulsed conditions. This paper includes details on device structure, module package design, and module pulsed switching and reliability.

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Дисертації з теми "High pulsed power systems"

Dupriez, Pascal. "Advanced high-power pulsed fibre laser systems and their applications." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/65498/.

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In this thesis, I report experimental studies towards power scaling of ultrashort fibre-based sources designed for applications including high average power femtosecond pulse generation and nonlinear frequency conversion. While the power produced by rare-earth doped fibre lasers operating in continuous-wave has dramatically increased within a few years to exceed the kilowatt level, pulsed fibre sources have been limited to tens of watts due to the onset of nonlinearities in fibre amplifiers. Therefore the aim is to manage fibre nonlinearities to achieve specific output properties at high average power. An innovative aspect of this work lies in the remarkable combination of telecom-grade semiconductor laser sources and high-power Yb-doped fibre amplifier technologies to produce short pulses at very high average power. Fibre nonlinear effects are often detrimental to the performance of fibre systems but can also provide an attractive tool to generate new useful wavelengths. The final part of this thesis describes efficient white light generation produced by a microstructure fibre pumped by the previously described green fibre source. Furthermore, I investigated a novel fibre source configuration for guide star application. The source I developed produced 1W at 589 nm through frequency doubling of 1178 nm radiation produced by pulsed Raman amplification in an Yb-doped fibre amplifier.

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Kumar, Rajesh. "High power Tesla driven miniature plasma opening switch." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/5478.

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The plasma opening switch (POS) is used in pulsed power systems where a very fast opening and high current switch is required. Plasma is injected into the switch, which carries a large conduction current, before it opens in a process that lasts for a few nanosecond and transfers the current to a parallel-connected load at a much increased voltage and with a much shorter rise time. The conduction and opening times of the switch are dependent on plasma parameters such as the distribution, speed and species, all of which are determined by the plasma source. Most of the earlier reported work involves large dimension POSs and a correspondingly high input current (more than 100 kA) and uses carbon plasma. One main objective of the present research was to achieve a low input current (20 kA) and miniaturised POS by using hydrogen plasma rather than carbon plasma on account of its lower mass. A cable gun was selected for producing the plasma, since although this produces both hydrogen and carbon plasma these arise different times during its operation. For the present application a Tesla transformer was used in preference to a Marx generator to produce an initial high voltage pulse for the system, on the basis of its simpler design and cost effectiveness. This transformer together with an associated water PFL (pulse forming line) and pressurised switch was capable of producing a load current in excess of 20 kA with a rise time of 53 ns, which was fed through the POS to the final load. Special diagnostics arrangements were necessary to measure the fast high current and voltage pulse a in nonintrusive way. Faraday cups and a high speed camera were used to measure the plasma parameters. The overall system built (i.e. including the POS) is capable of producing a 22 kA current with a rise time of 5 ns, and of generating a power of more than 10 GW. Much of the work detailed in the thesis has already been presented in peer reviewed journals and at prestigious international conferences.

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Talebi, Rafsanjan Salman. "Advanced high-speed flywheel energy storage systems for pulsed power application." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3163.

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Price, Jonathan Hugh Vaughan. "The development of high power, pulsed fiber laser systems and their applications." Thesis, University of Southampton, 2003. https://eprints.soton.ac.uk/15475/.

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Rare-earth doped silica fibers have been used for many years to create continuous-wave lasers, and Er-doped fiber amplifiers are now widely used in telecommunications. In addition, cladding pumped fiber allows the efficient conversion of multimode radiation from high power, low cost, broad-stripe semiconductor laser diodes into the single-mode emission of fiber lasers. With its broad gain bandwidth and high optical conversion efficiency, Yb-doped silica fiber represents an attractive medium for the generation and amplification of high energy ultrashort optical pulses. However, these potential advantages of Yb-doped silica fiber as a gain and nonlinear medium for mode-locked lasers and ultrashort pulse amplifiers have been less well studied, and it was not until 1999 that significant research interest first appeared in Yb-fiber chirp pulse amplifier (CPA) systems. This thesis describes the development of the first practical and stable, femtosecond, Yb-fiber oscillator, and of an Yb-fiber amplifier based CPA system (pulses ~10 μJ, <500 fs). Novel aspects of the system include the use of a high extinction ratio Electro-Optic modulator for pulse selection, and the development of a compact chirped-fiber-Bragg-grating (CFBG) pulse stretcher that provides both 2nd and 3rd order chirp compensation. Recently published theoretical results have demonstrated that the asymptotic solution for ultrashort pulses in a high gain fiber amplifier is a linearly chirped pulse, which can therefore be recompressed with a standard grating compressor. This thesis reports the first experimental comparison of nonlinear pulse evolution towards the asymptotic form using a cascaded amplifier system. The "direct amplification" system was constructed by removing the CPA stretcher grating, which also enabled the use of a less dispersive and more compact compressor. Further system development should lead to the generation of ultrashort pulses at high average power levels and >100 kHz repetition rates. Holey fiber (HF) is a recently developed technology that uses rings of air holes around a solid core to confine the optical field by average-index effects. Fibers are highly suitable for applications using nonlinear optics because of the tightly confined mode and long interaction lengths. The increased mode confinement possible using HF means that small-core, high air-fill fraction HF are an attractive nonlinear medium. Furthermore, the high index contrast in such fibers can create a strong (anomalous) waveguide contribution to the dispersion, and such HFs can have anomalous dispersion at wavelengths <1.3 μm, where conventional fiber has normal dispersion. Therefore HFs can support solitons in new wavelength bands. This thesis reports the first demonstration of linear dispersion compensation, soliton transmission, and visible continuum generation seeded by a 1.06 μm Yb-fiber source. In addition, an experimental study is reported that used HF seeded from a Ti:Sapphire laser to generate continuum in distinct transverse spatial modes of a HF. Numerical simulations suggested that the observed enhancement in UV generation from a higher order mode could be due to differences in the dispersion profiles of the fundamental and higher order transverse modes. Finally, the development of a novel source of <200 fs pulses, continuously tuneable in wavelength from 1.06-1.33 μm, based on the soliton self-frequency-shift principle, is described. The source was constructed from a diode-pumped Yb-doped HF amplifier, and the Yb-fiber oscillator described above. The diode pump power controlled the output wavelength.

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Piper, Andy. "The development of high power, pulsed fiber laser systems and their applications." Thesis, University of Southampton, 2006. https://eprints.soton.ac.uk/42427/.

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Due to the recent renewal in interest in fiber laser technology, continuous wave (c.w.) laser technology using rare-earth doped silica fibers has developed rapidly in the past few years. In the late 80s, Erbium Doped Fiber Amplifiers were commercialised and became widely used in the telecommunications industry. Yb-doped silica fiber is particularly attractive as its broad gain bandwidth and high optical efficiency make it a preferred choice for both pulsed and c.w. high power fiber laser and amplifier applications. With the advent of cladding pump technology, low cost, high power broad-stripe semiconductor laser diodes with multimoded radiation could be efficiently used to produce high power Yb-doped silica fiber lasers with either single (~ 1 kW) or multimode (~ 10 kW) emission. Finally, the development and demonstration of a novel gain switched laser diode operating at 1 µm is reported. Using this gain switched laser diode as a seed source; the output gain switched pulses were compressed to 20 ps using a fiber compressor and thereafter amplified to achieve an output average power of 11.1 W at 1 GHz repetition rate using an YDFA cascade. Additional novel work was carried out later where a linearly dispersive CFBG was used to compress the pulses to 16.6 ps. These pulses were later amplified to average powers of 321 W at 1 GHz. This we believe is the highest output power ever achieved for a short pulse fiber laser system.

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Sözer, Esin Bengisu Kirkici Hulya. "Gaseous discharges and their applications as high power plasma switches." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Electrical_and_Computer_Engineering/Thesis/Sozer_Esin_45.pdf.

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Benwell, Andrew L. "Flashover prevention on polystyrene high voltage insulators in a vacuum." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5018.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on March 18, 2008) Includes bibliographical references.

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Patil, Sandeep Kesharsingh. "Modeling and simulations of diphasic composites for development of high energy density dielectrics." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Patil_09007dcc804e35ca.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2008.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 21, 2008) Includes bibliographical references.

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Adamonis, Jonas. "High power Nd:YAG laser for pumping of OPCPA systems." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130925_093516-33211.

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This thesis was aimed to develop, investigate and optimize high power Nd:YAG laser system for OPCPA (Optical Parametric Chirped Pulse Amplifiers) pump. The particular attention is paid for the temporal characteristics of the Nd:YAG amplifies output pulse. Employment of Fabry-Perоt etalons in the cavities of two-stage Nd:YAG regenerative amplifier enables for amplified pulse stretching from 60 fs to ~ 100 ps pulse widths. The modulation of amplified pulse envelope is minimal when ration of thickness of the etalons is around 2. Envelope modulation can be controlled by changing the reflectivity of etalons. In order to improve amplified pulse contrast, we for the first time to our knowledge implemented second order intensity dependent filter, based on the effect of fundamental pulse polarization rotation in unbalanced second harmonic generators. By using this method, the contrast of the output pulses was improved by >102 times. We also demonstrated that Gaussian pulses from the output of Nd: YAG amplifiers can be transformed into flat–top pulses by using cascade second harmonic generation processes. The developed high output energy Nd:YAG amplifiers system for OPCPA pumping is optically synchronized with pulses of Yb:KGW oscillator and features two 532 nm outputs with pulse parameters: a) Gaussian pulse profile, ~ 300 mJ energy, 75 ps pulsewidth; b) hiper- Gaussian pulse profile, ~100 mJ energy, pulse width 100-150 ps.
Disertacija yra skirta sukurti, ištirti ir optimizuoti didelės galios Nd: YAG lazerių sistemą efektyviam moduliuotos fazės signalų optinių parametrinių stiprintuvų kaupinimui. Ypatingas dėmesys yra skiriamas Nd:YAG stiprintuvų išvadinių impulsų laikinių parametrų formavimui. Pademonstravome, kad Fabry-Pero interferometrų panaudojimas Nd:YAG dvipakopio regeneracinio stiprintuvo rezonatoriuose leidžia stiprinamų impulsų trukmę padidinti nuo ~ 60 fs iki 100 ps. Tuo tarpu išvadinių impulsų laikinės plėtros mastas bei gaubtinės moduliacijos gylis gali būti valdomas keičiant etalonų atspindžio koeficientą, o jų gaubtinės moduliacijos vertė mažiausia, kai etalonų storio santykis artimas 2. Sustiprintų impulsų kontrasto gerinimui pirmą kartą pritaikėme netiesinį antros eilės filtrą, veikiantį fundamentinės spinduliuotės poliarizacijos sukimo, išderintame antros harmonikos generatoriuje, efekto pagrindu. Tokiu būdu Nd:YAG stiprintuvuose sustiprintų impulsų kontrasto vertė pagerinta apie 102 kartų. Taip pat pademonstruota, kad Nd: YAG stiprinimo sistemos išėjime naudojant pakopinius antros harmonikos generacijos procesus, Gauso formos impulsus galima transformuoti į hipergauso impulsus. Sukurta didelės išvadinės energijos pikosekundinė Nd:YAG stiprintuvų sistema yra optiškai sinchronizuota su užduodančio femtosekundinio Yb:KGW osciliatoriaus impulsais ir turi ~ 300 mJ , 75 ps trukmės Gauso impulsų bei 100 mJ, > 100 ps trukmės hipergauso laikinės formos impulsų išvadus.

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He, Fei. "The development of high power fibre chirped pulse amplification systems." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/70913/.

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With its broad gain bandwidth and high optical conversion efficiency, ytterbium (Yb)-doped silica fiber represents an attractive medium for the generation and amplification of ultrashort optical pulses. Research interest in Yb-doped fiber chirped pulse amplifier (CPA) systems first appeared in the late 1990s. However, the potential advantages and capabilities of Yb-doped fiber CPA systems were not fully studied during the early research. Further scaling of both the average power and the pulse energy have now become possible with the development of several key technologies that are associated with Yb-doped fiber CPA systems. Finally, the development of a novel fiber CPA system operating with strong selfphase-modulation (SPM) is described, which applied adaptive shaping of the spectral phase of the input pulses. The pre-compensation of both SPM induced phase distortion at high energies, and residual dispersion from mismatched stretcher/compressor technologies at low energies are investigated

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Книги з теми "High pulsed power systems"

Qi, Zhang, ed. Introduction to high power pulse technology. Singapore: World Scientific, 1995.

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J, Schneider-Muntau Hans, and Physical Phenomena at High Magnetic Fields (3rd : 1998 : Tallahassee, Fla.), eds. Megagauss magnetic field generation, its application to science and ultra-high pulsed-power technology: Proceedings of the VIIIth International Conference on Megagauss Magnetic Field Generation and Related Topics : Tallahassee, Florida, USA, 18-23 October 1998. Hackensack, NJ: World Scientific, 2004.

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Stanton, Bonita. Physics and technology of high current discharges in dense gas media and flows. Hauppauge, N.Y: Nova Science Publishers, 2009.

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Mesi︠a︡t︠s︡, G. A. Pulsed power. New York: Kluwer Academic/Plenum Publishers, 2005.

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Martin, T. H., Arthur Henry Guenther, and M. Kristiansen. J.C. Martin on pulsed power. Boston, MA: Springer, 1996.

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C, Martin J. J.C. Martin on pulsed power. New York: Plenum Press, 1996.

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Laser Optics 2006 (2006 Saint Petersburg, Russia). Laser Optics 2006: Diode lasers and telecommunication systems : 26-30 June, 2006, St. Petersburg, Russia. Edited by Rosanov Nikolay N, Society of Photo-optical Instrumentation Engineers., Society of Photo-optical Instrumentation Engineers. Russian Chapter., and Fund for Laser Optics Physics (Russia). Bellingham, Wash: SPIE, 2007.

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IEE Pulsed Power Symposium (2005 Basingstoke, England). The IEE Pulsed Power Symposium 2005. London: Institution of Electrical Engineers, 2005.

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International, Conference on Megagauss Magnetic Field Generation and Related Topics (4th 1986 Santa Fe N. M. ). Megagauss technology and pulsed power applications. New York: Plenum Press, 1987.

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Mien-Win, Wu, and He neng yan jiu suo., eds. Pulsed high-power microwaves from a virtual-cathode reflex triode. Lung-Tan, Taiwan, Republic of China: Institute of Nuclear Energy Research, 1987.

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Частини книг з теми "High pulsed power systems"

Smith, Carl H. "Metallic Glasses in High-Energy Pulsed-Power Systems." In Glass … Current Issues, 188–99. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5107-5_14.

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Lazareva, Galina G., Aleksey S. Arakcheev, Aleksey A. Vasilyev, and Anastasia G. Maksimova. "Numerical Simulation of Tungsten Melting Under Fusion Reactor-Relevant High-Power Pulsed Heating." In Smart Modeling for Engineering Systems, 41–51. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-06228-6_5.

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Pazynin, Vadym, Kostyantyn Sirenko, and Yuriy Sirenko. "High-Power Short Pulses Compression: Analysis and Modeling." In Electromagnetic Waves in Complex Systems, 327–85. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31631-4_6.

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Lu, Shin-Tsu, and John O. de Lorge. "Biological Effects of High Peak Power Radio Frequency Pulses." In Advances in Electromagnetic Fields in Living Systems, 207–64. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4203-2_6.

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Hemmert, David, Andreas Neuber, and James Dickens. "Microwave Breakdown Studies of He — N2 Mixtures in a Pillbox Cavity for Repetitively Pulsed High Power Systems." In Gaseous Dielectrics X, 93–98. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-8979-6_13.

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Escalona, Omar, Niall Waterman, James McLaughlin, and David McEneaney. "Pulsed Transmission Waveform to Mitigate Tissue Thermal Effects in Transcutaneous Wireless Energy Supply Systems for High-Power Rated Medical Implants." In IFMBE Proceedings, 945–50. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-9038-7_175.

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Pilch, Iris. "High-Power Pulsed Plasmas." In Gas-Phase Synthesis of Nanoparticles, 227–42. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527698417.ch12.

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Schülke, H., and V. Sturm. "Pulsed High Power CO2 Lasers." In Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering, 23–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82638-2_4.

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Wu, Shaopeng, and Shumei Cui. "Overview of High-Power Pulsed Power Supply." In Pulsed Alternators Technologies and Application, 1–35. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4224-8_1.

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Drake, R. Paul. "Magnetized Flows and Pulsed-Power Devices." In High-Energy-Density Physics, 435–81. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_10.

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Тези доповідей конференцій з теми "High pulsed power systems"

Ao, Y., F. Zhang, D. Yang, Y. Teng, C. Chen, and L. Huang. "A vacuum-sealed repetitively pulsed high-power microwave system." In 2024 IEEE International Conference on Plasma Science (ICOPS), 1. IEEE, 2024. http://dx.doi.org/10.1109/icops58192.2024.10626483.

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Ratakhin, N. A. "Capacitors for Pulsed Power Systems." In BEAMS 2002: 14th International Conference on High-Power Particle Beams. AIP, 2002. http://dx.doi.org/10.1063/1.1530794.

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Gollor, M. "Electrical Insulation of Spaceborne High Voltage High Power Systems." In Ninth IEEE International Pulsed Power Conference. IEEE, 1993. http://dx.doi.org/10.1109/ppc.1993.512983.

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Krile, J., and M. Kristiansen. "Energy efficiency of High Power Microwave systems." In 2011 IEEE Pulsed Power Conference (PPC). IEEE, 2011. http://dx.doi.org/10.1109/ppc.2011.6191562.

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Korepanov, Andrey A., Alexey N. Panov, and Alexey S. Kasaev. "High stability injection kickers pulse magnet systems." In 2015 IEEE Pulsed Power Conference (PPC). IEEE, 2015. http://dx.doi.org/10.1109/ppc.2015.7296871.

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Wolf, M., and A. Pokryvailo. "High Voltage Resonant Modular Capacitor Charger Systems With Energy Dosage." In 2005 IEEE Pulsed Power Conference. IEEE, 2005. http://dx.doi.org/10.1109/ppc.2005.300477.

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Beverly, Robert E. "Coincidence detection system for multi-switch pulsed power systems." In 2014 IEEE International Power Modulator and High Voltage Conference (IPMHVC). IEEE, 2014. http://dx.doi.org/10.1109/ipmhvc.2014.7287338.

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Martinez, Andrea M., Daniel P. Muffoletto, Kevin M. Burke, and Jennifer L. Zirnheld. "Evaluating effects of constant and pulsed current in pulse initiated systems." In 2014 IEEE International Power Modulator and High Voltage Conference (IPMHVC). IEEE, 2014. http://dx.doi.org/10.1109/ipmhvc.2014.7287289.

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Walko, Lawrence, Richard St. John, Daniel Schweickart, and John Horwath. "Computational Techniques to Assess the Effects of Ionization on High Power Electrical Systems." In 2005 IEEE Pulsed Power Conference. IEEE, 2005. http://dx.doi.org/10.1109/ppc.2005.300696.

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Pronko, Steven G. E., David Sanabria-Diaz, Michael S. Mazzola, and Jim Gafford. "Advanced High Voltage Switching Technology for Fusion Reactor Power Systems." In 2023 IEEE Pulsed Power Conference (PPC). IEEE, 2023. http://dx.doi.org/10.1109/ppc47928.2023.10311029.

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O'Brien, Edward, and Joshua Stanford. Pulsed High Power Calibration System - Statement of Work. Office of Scientific and Technical Information (OSTI), June 2019. http://dx.doi.org/10.2172/1762676.

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Kiuttu, Gerald F., Sean Coffey, Frank Camacho, Al Lerma, Mark Kostora, and Wayne Sommars. High Energy Research and Applications (HERA) Pulsed Power and Pulsed Power Systems R&D for Magnetized Target Fusion Using Field Reversed Configurations (MTF-FRC). Fort Belvoir, VA: Defense Technical Information Center, March 2013. http://dx.doi.org/10.21236/ada589215.

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Alessi, D. High-Average-Power Diffraction Pulse-Compression Gratings Enabling Next-Generation Ultrafast Laser Systems. Office of Scientific and Technical Information (OSTI), November 2016. http://dx.doi.org/10.2172/1333397.

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Tantawi, Sami. Development of High Power X-Band Semiconductor RF Switch for Pulse Compression Systems of Future Linear Colliders. Office of Scientific and Technical Information (OSTI), November 2000. http://dx.doi.org/10.2172/784865.

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Legro, J., N. Abi-Samra, J. Crouse, A. Hileman, V. Kruse, E. Taylor, Jr, and F. Tesche. Study to assess the effects of high-altitude electromagnetic pulse on electric power systems. Phase I, final report. Office of Scientific and Technical Information (OSTI), February 1986. http://dx.doi.org/10.2172/6192994.

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Guo, Jiquan. The Development of the Electrically Controlled High Power RF Switch and Its Application to Active RF Pulse Compression Systems. Office of Scientific and Technical Information (OSTI), December 2008. http://dx.doi.org/10.2172/953016.

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Brice, Jeremy. Investment, power and protein in sub-Saharan Africa. Edited by Tara Garnett. TABLE, October 2022. http://dx.doi.org/10.56661/d8817170.

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Анотація:

The place of protein in sub-Saharan Africa’s food system is changing rapidly, raising complex international development, global health and environmental sustainability issues. Despite substantial growth in the region’s livestock agriculture sector, protein consumption per capita remains low, and high levels of undernourishment persist. Meanwhile sub-Saharan Africa’s population is growing and urbanising rapidly, creating expectations that demand for protein will increase rapidly over the coming decades and triggering calls for further investment in the expansion and intensification of the region’s meat and dairy sector. However, growing disquiet over the environmental impacts of further expansion in livestock numbers, and growing sales of alternative protein products in the Global North, has raised questions about the future place of plant-based, insect and lab-grown proteins in African diets and food systems. This report examines financial investment in protein production in sub-Saharan Africa. It begins from the position that investors play an important role in shaping the development of diets and food systems because they are able to mobilise the financial resources required to develop new protein products, infrastructures and value chains, or to prevent their development by withholding investment. It therefore investigates which actors are financing the production in sub-Saharan Africa of: a) animal proteins such as meat, fish, eggs and dairy products; b) ‘protein crops’ such as beans, pulses and legumes; and c) processed ‘alternative proteins’ derived from plants, insects, microbes or animal cells grown in a tissue culture. Through analysing investment by state, philanthropic and private sector organisations – as well as multilateral financial institutions such as development banks – it aims to establish which protein sources and stages of the value chain are financed by different groups of investors and to explore the values and goals which shape their investment decisions. To this end, the report examines four questions: 1. Who is currently investing in protein production in sub-Saharan Africa? 2. What goals do these investors aim to achieve (or what sort of future do they seek to bring about) through making these investments? 3. Which protein sources and protein production systems do they finance? 4. What theory of change links their investment strategy to these goals? In addressing these questions, this report explores what sorts of protein production and provisioning systems different investor groups might be helping to bring into being in sub-Saharan Africa. It also considers what alternative possibilities might be marginalised due to a lack of investment. It thus seeks to understand whose priorities, preferences and visions for the future of food might be informing the changing place of protein in the region’s diets, economies and food systems.

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zur Loye, Hans-Conrad, and Harry J. Ploehn. Polymer Nanocomposites As Future Materials For Defense & Energy Applications-High Energy Density Storage Systems With Reduced Size And Weight For Pulse Power Applications. Fort Belvoir, VA: Defense Technical Information Center, November 2011. http://dx.doi.org/10.21236/ada557747.

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Kristiansen, M., J. C. Dickens, and S. I. Shkuratov. Compact Pulsed Power and High Power Microwave Devices. Fort Belvoir, VA: Defense Technical Information Center, September 2003. http://dx.doi.org/10.21236/ada418099.

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Messerly, M. High Average Power, High Energy Short Pulse Fiber Laser System. Office of Scientific and Technical Information (OSTI), November 2007. http://dx.doi.org/10.2172/923999.

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