Results 221 to 230 of about 46,180 (252)
Some of the next articles are maybe not open access.
LASERS AND THE REACTOR IGNITION PROBLEM
Soviet Journal of Quantum Electronics, 1973Some published estimates of the laser energy (W0) required to heat an inertially confined D–T target in a pulsed fusion reactor are summarized. Assuming a thermal efficiency of 1/3 and a laser heating efficiency (target energy/laser pumping energy) of 100%, most of these estimates of W0 range between 10 and 1000 MJ, depending on the various assumptions
openaire +1 more source
Ignition Delay and Ignition Modes in Zeeman Laser Gyroscope
2022 29th Saint Petersburg International Conference on Integrated Navigation Systems (ICINS), 2022Nikolay Tikhmenev +4 more
openaire +1 more source
Laser Ignition of Propellants and Explosives
1998Abstract : Laser and radiative ignition of 24 solid propellants and explosives was analyzed. The effect of ignition criterion used to calculate ignition delays from models was evaluated. Values for the optical parameters reflection, R(lambda) and absorption, k(lambda) coefficients at wavelengths 0.36-1, 1.06 and 10.6 microns were summarized. Effects of
Brad Forch +4 more
openaire +1 more source
Ignition of laser detonation waves
Journal of Applied Physics, 1974The ignition of laser-supported detonation waves is caused by the thermomechanical response of the target. The blown-off material acts as an accelerating piston creating a shock wave in air. The small amount of free electrons created by the shock wave is cascaded to plasma densities by light absorption. The theory explains a number of conclusions which
openaire +1 more source
On the laser ignition and initiation of explosives
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2001Energetic materials are conventionally ignited by the application of heat to some part of an explosive target. This is most often provided by a flame or by electrical heating using a resistive wire. The material responds by thermally heating and starting a burning zone, which spreads out from the ignition point generating gas.
openaire +2 more sources
Laser Ignition of Hybrid Rocket Motors: Ignition Characterization and Ignition Mechanism Analysis
AIAA SCITECH 2023 Forum, 2023Veronika Korneyeva +4 more
openaire +1 more source
Laser ignition for artillery cannon
SPIE Proceedings, 2005The challenges of developing laser ignition for an artillery cannon in which the black powder (BP) of the charges must be ignited are described. Laser ignition threshold behavior for BP is quantified for hot and cold temperatures and compared to ambient behavior. The threshold behavior for single grains of BP is compared to that of multiple grains more
openaire +1 more source
Laser ignition of pressed composites
Combustion, Explosion and Shock Waves, 1983This article presents the results of laser ignition experiments on the model pressed composites 0.45Si + 0.55Pb/sub 3/O/sub 4/ and 0.25A1 + 0.75 KC1O/sub 4/ for various pulse lengths and pressing loads. The GOS-30M neodymium laser operated in the free running mode and the Q-switched mode.
openaire +1 more source