Current-scaling of radiated power for 40-mm diameter single wire arrays on ZIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 154
T.J. Nash, G.A. Chandler, R. Leeper, J.F. Seaman, J. McGurn, S. Lazier, J. Torres, D. Jobe, T. Gilliland, D. Nielsen, R. Hawn, J.E. Bailey, P. Lake, A.L. Carlson, H. Seamen, T. Moore, R. Smelser, J. Pyle, T. Waggoner, P.D. LePell, C. Deeney, M.R. Douglas, D. McDaniel, K. Struve, M. Mazarakis, W. Stygar
Summary form only given, as follows. In order to estimate the radiated power that can be expected from the next-generation z-pinch driver such as ZR at 28 MA, current-scaling experiments have been conducted on the 18-MA driver Z. We report on the current scaling of single 40-mm diameter tungsten 240-wire arrays with a fixed 110-ns implosion time. The wire diameter is decreased in proportion to the...... hiện toàn bộ
#Wire #X-ray imaging #Lakes #Zirconium #Tungsten #Voltage #Stability
Asymptotic analysis of stability transition in MHD modelsIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 231
M.A. Pinsky, V. Makhin
Summary form only given. Mathematical models of plasma instabilities, such as dense Z-pinches, are often described by systems of nonlinear PDEs with fast varying coefficients, which involve numerous uncertainties in equation parameters, boundary and initial conditions. Instabilities and high dimension of these models may amplify uncertainties and result in unpredictability of simulations, which mi...... hiện toàn bộ
#Stability analysis #Asymptotic stability #Magnetohydrodynamics #Uncertainty #Computational modeling #Predictive models #Bifurcation #Mathematical model #Plasma density #Plasma simulation
Relativistic and nonrelativistic magnetron experiments and a novel theory of relativistic crossed-field limiting currentIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 181
M.R. Lopez, R.M. Gilgenbach, V.B. Neculaes, D.W. Jordan, Y.Y. Lau, M.D. Johnston, M.C. Jones, T.A. Spencer, J.W. Luginsland, M. Haworth, R.W. Lemke, D. Price
Summary form only given, as follows. Relativistic magnetron experiments have generated over 200 MW total microwave output power. These experiments are driven by the MELBA long-pulse e-beam with parameters: Voltage = 0.4 MV, current = 1-10 kA, pulselength = 0.5 microsecond. The 6-vane magnetron is made by Titan and operates in the L-band near 1 GHz. Two types of cathodes were used: (1) a non-end-ca...... hiện toàn bộ
#Cathodes #Blades #Power generation #Microwave generation #Voltage #L-band #Explosives #Electrons #Power measurement #Magnetic field measurement
Kỹ thuật lắng đọng hỗ trợ bằng plasma để tổng hợp màng mỏng polyanisidine có hằng số điện môi thấp Dịch bởi AI IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 292
C.J. Mathai, S. Saravanan, S. Jayalekshmi, M.R. Anantharaman, S. Venkatachalam, P.V. Prabhakaran
Chỉ cung cấp dưới dạng tóm tắt. Chúng tôi báo cáo về việc chuẩn bị các màng mỏng polyanisidine điện môi thấp bằng cách sử dụng kỹ thuật polymer hóa plasma xoay chiều. Các nghiên cứu FTIR cho thấy rằng vòng thơm được giữ lại trong các màng polymer. Điều này sẽ nâng cao độ ổn định nhiệt của các màng. Điện dung điện môi và tổn thất điện môi của các màng này được đo bằng máy phân tích trở kháng HP4192...... hiện toàn bộ
#Hằng số điện môi #Màng mỏng điện môi #Kỹ thuật phun tia #Màng polymer #Đo lường tổn thất điện môi #Đo lường plasma #Tổn thất điện môi #Tần số #Màng dẫn điện #Nhiệt độ plasma
Electron density and electron temperature in argon microhollow cathode dischargesIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 193
M. Moselhy, F. Leipold, K.H. Schoenbach, I. Petzenhauser, K. Frank
Summary form only given, as follows. Direct current microhollow cathode discharges (MHCDs) operated in noble gases and in mixtures of rare gases and halides have been shown to emit excimer radiation with efficiency in the 0.5-10% range. Even higher values in efficiency have been obtained (20% in xenon) when the discharge was pulsed with 20 ns pulses. These relatively high values indicate a substan...... hiện toàn bộ
#Argon #Cathodes #Plasma temperature #Plasma measurements #Gases #Density measurement #Hydrogen #Electron emission #Xenon #Atomic measurements
Supersonic nozzle jets on Double Eagle-calculations and comparison to experimental dataIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 127
A. Wilson, P. Steen, S. Chantrenne, P.L. Coleman, R. Prasad, N. Qi, D. Bell
Summary form only given. We have performed calculations of the hydrodynamics of concentric, supersonic annular nozzles that are used to inject argon shells for X-ray-emitting plasma implosions. We have compared density profiles produced by straight as well as by aerodynamic nozzle configurations. These calculations, done using the MACH2 code, have also been compared with experimental measurements....... hiện toàn bộ
#Plasma measurements #Aerodynamics #Plasma temperature #Hydrodynamics #Argon #Plasma density #Plasma x-ray sources #Fluid flow #Gas lasers #Interferometry
Remote sensing the state of the inner magnetosphereIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 202
E.F. Donovan
Summary form only given. The terrestrial magnetosphere is a plasma filled cavity carved out of the solar wind by the Earth's magnetic field. This plasma originates from both the upper atmosphere and the solar wind, and its presence has a significant effect of the topology of the magnetospheric magnetic field. Particularly at high geomagnetic latitudes, electrons and protons of magnetospheric origi...... hiện toàn bộ
#Remote sensing #Magnetosphere #Protons #Magnetic fields #Plasmas #Atmosphere #Earth #Topology #Geomagnetism #Electrons
The model of the gap of acceleration of intense electron beams in plasma sources of the charged particles with ionization of residual gasIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 305
O.N. Petrovich, A.F. Stekolnikov, V.A. Gruzdev
Summary form only given, as follows. Sources of charged particles with plasma emitter represent a complicated problem because it is necessary to take into account that position and form of the emitting plasma surfaces self-coordinated with distribution of the potential (i.e. the plasma surfaces must be set in point where zero strength of the electric field is established). In this paper the algori...... hiện toàn bộ
#Acceleration #Electron beams #Plasma sources #Ionization #Plasma simulation #Plasma temperature #Particle beams #Electrodes #Plasma density #Space charge
The electra laser: hibachi development and electron beam depositionIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 324
F. Hegeler, M. Myers, M. Friedman, J. Sethian, S.B. Swanekamp
Summary form only given, as follows. Electra is a repetitively pulsed, electron beam pumped krypton fluoride (KrF) laser that will be used to develop the technology required for internal fusion energy (IFE). The hibachi structure supports a thin foil that isolates the laser gas at 1.3 to 2 atmospheres from the vacuum of the electron beam diode. Several hibachi designs have been evaluated. The 30 c...... hiện toàn bộ
#Electron beams #Gas lasers #Pulsed laser deposition #Pump lasers #Laser fusion #Laser excitation #Computational modeling #Optical pulses #Isolation technology #Atmosphere
Deposition of TiN films on the inner wall of a pipe by DC vacuum cathodic arc deposition and PBIIIEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340) - - Trang 262
Xinxin Ma, K. Yukimura, M. Kumagai, T. Maruyama, M. Kohata, H. Saito
Summary form only given. TiN films were deposited on the inner wall of a pipe of 80 mm in inner diameter and 150 mm. long by DC vacuum cathodic arc deposition and PBII. A metal rod connected to ground was inserted in the center of the pipe. One of the open ends was set towards to the titanium plasma source. In order to examine the characteristics of the prepared film, silicon substrates were paste...... hiện toàn bộ
#Tin #Vacuum arcs #Titanium #Plasma sources #Plasma density #Voltage #Semiconductor films #Silicon #Substrates #Nitrogen