hollow cathode
Theoretical and Experimental Investigation of Hollow Cathode Nitrogen Glow Discharge Plasma
... the cathode spend almost energy for excitation and ionization of working gas at distant of several centimeter from the cathode, that is why the plasma density at the axis appear low mostly due to diffusion ...
8
Spectral emission analysis of a dc helium hollow cathode discharge
... the hollow cathode of larger diameter HC1612, it is detected (low intensity) only at 40 mA, 6 mbar and at the ...developed hollow cathode discharge; the smaller diameter being more favorable ...
8
Probe and Emission Spectrometry Diagnostics in Hollow Cathode Magnetron
... HCM uses a single dc power supply to both sputter and ionize the target material unlike other IPVD tools which use secondary inductively coupled or ECR plasma sources for ionization of sputtered atoms. The quality of the ...
9
Plasma Surface Interactions in Hollow Cathode Discharges for Electric Propulsion
... The flow of these particles in the discharge is governed by the conservation equations and inter- actions with the xenon plasma. Key physical interaction processes include collisions with electrons, xenon ions, and xenon ...
146
A study of the hollow cathode metal vapour laser discharge
... the dark space and by considering also all the de-excitation processes in the discharge) or by knowing the ratio However, even if this is theoretically possible, because of the lack of information about the various ...
196
Dependence of some plasma parameters on ap in a dc helium hollow cathode discharge
... the hollow cathode effect are primarily due to its efficient confinement of particles (neutrals, ions, electrons) due its geometry ...V, hollow cathode geometry and material, and filling ...
6
Effect of Nitrogen Gas Pressure and Hollow Cathode Geometry on the Luminous Intensity Emitted from Glow Discharge Plasma
... dc hollow cathode glow discharge plasma (HCGD) ...and hollow cathode geometry such as diameter and depth of hollow cathode have been studied ...the hollow cathode ...
6
Characteristics of cylindrical hollow cathode plasma jet
... The single eclectic probe surface was cleaned from deposited films by applying high negative voltage on the probe in between probe characteristics measurements. This high negative voltage caused ion bombardment and ...
7
Hollow cathode thrusters for all electric spacecraft
... of hollow cathodes such may also present a microthruster suitable for smaller satellites ...T6 hollow cathode in particular permits operation at convenient discharge voltages (10-25V) for satellites ...
15
Plasma Particle Trajectory Study for a Device Combining Hollow Cathode Discharge and Non-Adiabatic Trap
... cylindrical hollow cathode discharge to which the magnetic field of the solenoid and Helmholtz coil is ...The hollow cathode can increase the ion- ization efficiency of the neutral gas by the ...
5
Experimental study of expanding hollow cathode discharges
... Given the results of the sweeps in parameter space, a flow of 25 sccm and a power of 50 W are used for the standard operating parameters for spatial measurements. These parameters give a plenum pressure of 1.6 Torr and a ...
191
Numerical simulation of the insert chemistry of the hollow cathode from the deep space 1 ion engine 30,000 Hrs life test
... Tungsten deposition effects on the IDS and barium oxide deposition on the cathode tube were added to the model starting from the experimental measurement. This improves the model prediction accuracy producing ...
8
Q-switched laser as a source for Thomson scattering from a hollow cathode arc.
... A plot of Q-switched laser output against mirror reflectivity for absorber cells of different path length.. A plot of threshold energy and pulse delay time against dye concentration.[r] ...
44
Investigation of steady state characteristics of hollow cathode internal plasmas using optical emission spectroscopy
... Plasma Parameters The plasma potential, discharge current and current densities were calculated using experimental values of the electron temperature, number density and insert temperatu[r] ...
240
Thrust characterization of a T5 hollow cathode
... Specific impulse can be traded for higher thrust to power ratios by increasing propellant flow rates or decreasing discharge current however higher thrust efficiencies are obtained at hi[r] ...
29
Feasibility of Using a Uranium Hollow Cathode Lamp as Primary Source in Atomic Absorption Spectroscopy EUR 3558
... OMENETTO European Atomic Energy Community — EURATOM Joint Nuclear Research Center — I spra Establishment I taly Chemistry Department — Analytical and I norganic Chemistry Brussels, Augus[r] ...
18
Studies of hollow cathode He Cd lasers
... f hollow c a th o d e which has a r g u a b l y proved t o be t h e most s u c c e s s f u l i n term s o f o u t p u t power and s t a b i l i t y i s th e s o - c a l l e d " f l u t e - t y p e " ...
265
Creation of a new class of nanocomposite coatings of the increased crack resistance and hardness on the basis of innovative beam technologies
... rectangular hollow cathode 2 with a length of 356 mm width 136 mm and a depth of 50 ...rectangular hollow electrode 5 with a length of 580 mm, a width of 170 mm and a depth of 85 mm is fastened on ...
8
GLOBAL JOURNAL OF ADVANCED ENGINEERING TECHNOLOGIES AND SCIENCES A COMPARATIVE STUDY OF ZINC, COPPER, IRON AND CALCIUM METALS BETWEEN BRANDED POWDERED MILK SAMPLES AND PACKED PASTEURISED MILK SAMPLES Sarita Gadgil*, Dr Sunita Singh Shekhawat, Dr Renu Sharma, Vikas Kumar
... The digested milk samples were analysed for zinc, copper, iron and calcium by an Atomic Absorption Spectrometer [Perkin- Elmer (Germany) Model no. Aanalyst100]. Hollow cathode lamps of Zn, Cu, Fe and Ca ...
8
Plasma Surface Interactions in LaB₆ Hollow Cathodes with Internal Xe Gas Discharge
... the hollow cathode design was ...the cathode. The cathode plasma extends outwards until it merges with the thruster plasma, thus creating a suitable medium for charges to move between ...
173