Laser energy storage discharge circuit
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The energy density of the energy storage device is mainly determined by its capacitance and working voltage (E = CV 2 /2); therefore, further improvement of its energy storage relies on enhancing these parameters, especially the capacitance [62, 63]. To increase the device capacitance, pseudocapacitive materials such as transition metal oxides ...
Recent advances in preparation and application of laser …
The energy density of the energy storage device is mainly determined by its capacitance and working voltage (E = CV 2 /2); therefore, further improvement of its energy storage relies on enhancing these parameters, especially the capacitance [62, 63]. To increase the device capacitance, pseudocapacitive materials such as transition metal oxides ...
Fault diagnosis technology overview for lithium‐ion battery energy ...
Energy storage can realise the bi-directional regulation of active and reactive power, which is an important means to solve the challenge . Energy storage includes pumped storage, electrochemical energy storage, compressed air energy storage, molten salt heat storage etc . Among them, electrochemical energy storage based on lithium-ion battery ...
Usage of Energy Storage Capacitors in TE Gas Laser Pulsers
An energy storage capacitor is crucial for both electrically pumped and ... very uniform UV pre-ionization and low-inductance discharge circuit permit the best laser performance with a gas mixture ...
Efficient gas lasers pumped by double-discharge circuits with ...
A review of applications of double-discharge circuits based on generators with inductive energy storage (IES) and semiconductor opening switches (SOS) for efficient excitation of different gas lasers is presented.
Thyratron-switched, LC inverter, prepulse-sustainer, laser discharge ...
A prepulse-sustainer discharge circuit for excitation of a xenon chloride laser is described. A single thyratron switch is used to initiate an electrical sequence which preionizes, prepulses and sustains the electric discharge in the laser. Important parameters within each of the circuits are calculated and the methods of implementation are given.
Ballistic‐Aggregated Carbon Nanofoam in Target‐Side …
The present research investigates film deposition by pulsed laser ablation in a background gas pressure. We focus on carbon nanofoams grown by ablated species directed backward with respect to the plasma-plume …
Moisture-enabled self-charging and voltage stabilizing …
Especially, the electricity generation provides the constant moist-electric potential that counteracts the effect of self-discharge for the electrochemical energy storage, achieving 96.6% voltage ...
Efficiency of a capacitor‐transfer‐type discharge excimer laser …
Energy transfer aspects in a capacitor‐transfer‐type discharge excimer laser with automatic preionization (API) have been studied to improve the laser efficiency. Detailed measurements on the discharge and output characteristics of the XeCl laser show that efficient energy transfer from the storage capacitor to the discharge capacitor is essential for improvement in the overall …
Chapter 7 Lasers
Figure 7.1: Theodore Maiman with the first Ruby Laser in 1960 and a cross sectional view of the first device [4]. The first HeNe-Laser, a gas laser followed in 1961. It is a gas laser built by Ali Javan at MIT, with a wavelength of 632.8 nm and a linewidth of only 10kHz. The basic principle of an oscillator is a feedback circuit that is ...
Development of a compact and reliable repetitively pulsed Xe …
The excitation circuit primarily consists of a high voltage power supply, a thyratron (CX 3608) as a controllable high voltage switch, main energy storage capacitors and peaking capacitors. Due to short wave lengths, the pumping energy density in an excimer laser has to be very high and due to very short pumping time, the power density is ...
Fast Discharge Circuit for Longitudinally Excited CO 2 Laser
We investigated the use of a fast discharge circuit to obtain a high spike laser pulse in a longitudinally excited CO 2 laser. We compared a traditional capacitor-transfer …
LARGE HIGH ENERGY DENSITY PULSE DISCHARGE …
These advances in energy density were driven by military research in directed energy weapons and kinetic energy weapons, such as railguns. The major driver for the development of large energy storage capacitors in the mid- to late-1990''s was the National Ignition Facility (NIF), a U.S. Department of Energy facility now being built at Lawrence
Influence of discharge circuit parameters on the repetition rate-energy …
The excitation circuits of a copper vapour laser (CVL) with a partial or total discharge of the storage capacitor were analysed. Based on this analysis, the effect of prepulse electron density on ...
Usage of Energy Storage Capacitors in TE Gas Laser Pulsers
The intense, very uniform UV pre-ionization and low-inductance discharge circuit permit the best laser performance with a gas mixture rich in CO2.
Long-lived laser-induced arc discharges for energy channeling ...
When gap breakdown occurs, the low energy (10 J) 5-stage Marx generator, starts to discharge in the first (R 2 L 2 C 2) circuit provided that L 2 ≪ L 1. It results in damped …
Fast Discharge Circuit for Longitudinally Excited CO 2 Laser
Figures 3 and 4 show the discharge voltage and laser pulse waveforms at a mixed gas pressure of 3.0 kPa for the direct-drive circuit and the capacitor-transfer circuit, respectively. As shown in Fig. 3, with the direct-drive circuit, the breakdown voltage was −55.2 kV.The fall time of the main discharge, corresponding to the discharge formation time, was …
Modulated High Power and Narrow Pulse Width Laser Drive Circuit …
The energy storage unit is usually a capacitor or several capacitors connected in parallel. In the pulse laser drive circuit, there are two options for the value of the energy storage capacitor. ... In the design of the laser drive circuit, the discharge current through the laser diode is a very important parameter. A series of information such ...
Modulated High Power and Narrow Pulse Width Laser Drive …
allel. In the pulse laser drive circuit, there are two options for the value of the energy storage capacitor. One is to take a large capacitance value. During a pulse discharge pe-riod, the ...
Generation of long pulse excimer laser using a novel auto
This circuit is capable of generating fast rising voltage pulses necessary for creating the glow discharge. The sustainer circuit consists of main energy storage unit made of a 20 nF capacitors bank (or 30 nF) and a saturable inductor (L S2) made of Ni–Zn ferrites, provides electrical energy to the discharge gas medium for
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Series-counterpulse repetitive-pulse inductive storage circuit. DOEpatents. Honig, E.M. 1984-06-05. A high-power series-counterpulse repetitive-pulse inductive energy storage and transfer circuit includes an opening switch, a main energy storage coil, and a counterpulse capacitor.The local pulse is initiated simultaneously with the initiation of the counterpulse used …
Prospects for Improving the Energy Characteristics of a Copper …
An inductor is introduced into the discharge circuit between the storage and sharpening capacitors. Oscillograms in Fig. 5 show the dynamics of the electrophysical …
Discharge lasers pumped by generators with inductive energy storage
Generators with inductive energy storage units and semiconductor opening switches designed for laser excitation are described. Operation of the generators on a gas-discharge load is considered and possible excitation modes are discussed. A longitudinal N/sub 2/ laser, transverse discharge nonchain HF laser, and CO/sub 2/ laser are developed based on this pumping technique. …
Efficient gas lasers pumped by double-discharge circuits with ...
Generally, capacitive energy storage pulsed-power generators, for instance a Blumlein generator, magnetic compression and capacitive-transfer circuits, etc., are used as a power supply of a pulse laser excited by the electrical discharge. ... The Hybrid Pulsed Power Circuit Modeled as a Double-Discharge Circuit for Gas Laser Applications. 2021 ...
Pumping scheme of the CO 2 laser: (LE) laser electrodes; (SW 0 ), …
A review of applications of double-discharge circuits based on generators with inductive energy storage (IES) and semiconductor opening switches (SOS) for efficient excitation of different gas ...
Electrochemical energy storage performance of one-step laser …
Their electrochemical energy storage performance has been investigated and compared to reveal the contribution of each component. The porous carbon-rich (C-rich) …
Pumping of discharge gas lasers by generators with inductive …
Longitudinal N2-laser with inductive energy storage unit and semiconductor opening switch is investigated. It is shown that pumping by inductive energy storage unit reduced the influence …
Fast Discharge Circuit for Longitudinally Excited CO2 Laser
The transformer is employed to limit a short circuit current into an energy-storage capacitor. The laser performance characteristics versus pressure and discharge current for pumping with a dc and ...
Light–Material Interactions Using Laser and Flash Sources for Energy …
This review provides a comprehensive overview of the progress in light–material interactions (LMIs), focusing on lasers and flash lights for energy conversion and storage applications. We discuss intricate LMI parameters such as light sources, interaction time, and fluence to elucidate their importance in material processing. In addition, this study covers …
Long pulse behavior of the avalanche/self‐sustained discharge …
Homogeneous and stable avalanche/self‐sustained discharges of 200‐nsec duration have been obtained in typical XeCl laser gas mixtures at relatively high gas pressures (1–4 atm) and high energy loadings (100–400 J/liter‐atm). The laser output waveform, however, is found to be surprisingly sensitive to changes in gas pressure and composition. Under certain conditions, …
Generation of long pulse excimer laser using a novel auto
This circuit is capable of generating fast rising voltage pulses necessary for creating the glow discharge. The sustainer circuit consists of main energy storage unit made of a 20 nF capacitors bank (or 30 nF) and a saturable inductor (L S2) made of Ni–Zn ferrites, provides electrical energy to the discharge gas medium for sustaining glow ...
Microsecond Long Pulse Generation of Nd:YAG Laser Using
DISCHARGE CIRCUITS A flash-lamp discharge circuit comprises a trigger circuit to initiate the ionization of the gas in the lamp, a simmer circuit that keeps a partial steady-state ion-ization of the gas, and a charged capacitor C which is discharged into the flash-lamp through an inductor L [9]. Figure 1 depicts single mesh (Fig. 1a) and multi-
The Hybrid Pulsed Power Circuit Modeled as a Double-Discharge Circuit ...
An electric-discharge KrF laser (248 nm) with an average output power of 300 W is developed and studied. A number of new design features are related to the use of a laser chamber based on an Al 2 ...
Laser irradiation construction of nanomaterials toward electrochemical ...
1 INTRODUCTION. The rapid depletion of fossil energy, along with the growing concerns for energy crisis and environmental pollution, has become a major world challenge at present. 1-4 Renewable energy, including wind, solar, and biomass energies, has been extensively explored to accelerate the sustainable development of the society. 5, 6 Recently, the development of new …
Discharge KrF Laser with a High Specific Energy of Radiation
At present, discharge KrF lasers remain the most powerful radiation sources in the UV spectral range. However, due to natural instability of the volume discharge operation in dense gaseous media with fluorides, the total efficiency (from the energy stored in the storage capacitor) of such lasers does not exceed 2.5% for the maximal specific radiation energy of up …
Power Generation and Storage for Directed Energy Systems
Several laser power levels were investigated on existing naval vessels. Energy storage options considered were batteries, capacitors, and flywheels. The study compared how quickly the stored energy can be used, the amount of energy stored for a given size and weight (energy density), size, weight, discharge, and recharge rate.