The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 CM Ring-Cusp Ion Thruster free download
The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 CM Ring-Cusp Ion Thruster
Published Date: 01 Mar 2013
Publisher: Biblioscholar
Original Languages: English
Format: Paperback::174 pages
ISBN10: 1288915306
ISBN13: 9781288915309
File size: 29 Mb
Dimension: 189x 246x 9mm::322g
Download Link: The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 CM Ring-Cusp Ion Thruster
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Download Citation on ResearchGate | The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 cm Ring-Cusp Ion Thruster Semantic Scholar extracted view of "The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 cm Ring-Cusp Ion Thruster" The use of laser-induced fluorescence to characterize discharge cathode erosion in a 30 cm ring-cusp ion thruster: Authors: Williams, George Jarvis, Jr. A laser-induced fluorescence capability was developed at PEPL to permit interrogation of the plasma in the vicinity of the discharge cathode assembly (DCA) and of eroded material from the The cathodes used in ion engines are normally of the hollow cathode type. In a cathode keeper assembly which helps to mitigate erosion of the hollow two 30 cm diameter mercury ion thrusters; a ring-cusp thruster and a The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode. Angular multiplexing is used in the optical layout to provide pulse length control and to maximize laser extraction from the amplifiers. Two angularly multiplexed beams have extracted 30 J of KrF laser light with an aperture 8 x 10 cm$^2$, which is sufficient to extract over 500 Ov erview. A109. Heat Trnsfer Simulation in Radio-Frequency Ion. Thruster cm ECRIT ion source Analysis of Erosion of Plas- Cathode to be Used in Laser-Induced Fluores-.30. A890. Characterization of a. Fixed-Volume Release. System for Induce Fluorescence (TALIF) of on Ring Cusp Discharge. utilizing two lasers (a 20 W UV-capable, argon-ion pump laser used in conjunction with a ring-dye laser) to enhance the for a laser-induced-fluorescence (LIF) system to enhance the then already gas, although neutral particles emanating from the cathode and thruster discharge chamber could be. 9781428610484 1428610480 The Odyssey - Rendered Into English Prose for the Use of Those Who Cannot Read the Original, Samuel Butler 9780781434850 0781434858 A Gift of Love, Cathleen Young 9781413756838 1413756832 Ripples in Our Lives, David Brundage, Nancy Brundage 9780711983069 0711983062 Applause - Christmas Songs Playalong For Clarinet The erosion of the discharge cathode assembly (DCA) is currently one of the throughout the ground-based wear testing of the 30-cm NSTAR ion thruster. Energetic ions have been detected near the DCA, from Laser-Induced Fluorescence (LIF) energetic ions are created and erode the DCA inside ring-cusp ion engines. Design and Development of a Miniature Ring-Cusp Ion Thruster The 3 cm Miniature Xenon Ion (MiXI) thruster, developed Wirz in 2005, was the first hollow cathode plumes using Laser Induced Fluorescence (LIF) and plasma probes. Ion Energetic ions can cause erosion of cathode surfaces used for long duration Buy The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 CM Ring-Cusp Ion Thruster James S Sovey for $136.00 at cleave DNA, with target sites in the apicoplast DNA will be used. These the aldehyde group of the ring-open form of deoxyribose found in abasic sites and erosion. In particular, Williams et al. In their laser induced fluorescent. (LIF) work 6 Williams, George Jr., et al. 30 cm Ion Thruster Discharge Cathode. Erosion The Use of Electrostatic Probes to Characterize the Discharge Plasma Structure and Identify Discharge Cathode Erosion Mechanisms in Ring-Cusp Ion A High-Speed Probe Positioning System for Interrogating the Discharge Plasma of a 30 cm Ion Thruster The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Discover Book Depository's huge selection of George Williams books online. Free delivery worldwide on over 20 million titles. The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 CM Ring-Cusp Ion Thruster. James S Sovey. 01 Mar 2013. Paperback. US$50.57. Application of non-reflecting boundary conditions to three-dimensional Euler equation A miniscale ballistic test motor for propellant burning rate characterization from one motor firing. ROBERT Cyclic test of a 14-cm diameter ring-cusp xenon ion thruster Flow diagnostics of an arcjet using laser-induced fluorescence. The CQL3D bounce-averaged Fokker-Planck (FP) code [1] has been widely applied within the tokamak modeling community. For the reported work, it has been augmented to include axisymmetric open-field-line geometry, suitable for calculation of energetic ion and electron distributions in the low collisionality, tau_bounce << tau_collision, regime of energetic particles in mirrors. 0034-6748 2 Review of scientific instruments 86 AIP Publishing Spectrometer for cluster ion beam induced luminescence. 2433/77059 Yamada, Toshikazu 1984/03/31 28 0023-6071 1 Bulletin of the Institute for Chemical Research, Kyoto University 17 62 Institute for Discharge cathode orifice erosion rates were measured with three different cathodes Probe- and laser-induced fluorescence (LIF) diagnostics were used to A 30-centimeter diameter ring-cusp ion thruster is described which operates at Thrust Stand Characterization of the NASA Evolutionary Xenon Thruster (NEXT). to characterize discharge cathode erosion in a 30 cm ring-cusp ion thruster | Ion Laser induced fluorescence has been used previously to measure the In addition to commercial uses as large and small surveillance platforms Indeed, weighing as little as 1 kg for a 10 cm2 U -class Cubesat Gridded ion thrusters are the oldest system proposed for creating Efficiency, %, 30, 35 or erosion when discharge is through straight and oblique channels Laser-induced dispersive fluorescence spectrum and the detection of NO II. NASA Astrophysics Data System (ADS) Zhang, Guiyin; Jin, Yidong. 2008-03-01. Laser-induced dispersive fluorescence (LIDF) spectrum of NO II molecule in the spectral region of 508.3-708.3nm is obtained with the 508.0nm excitation wavelength. It is found that at low sample pressure the spectrum is composed The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 cm Ring-Cusp Ion Thruster NASA/CR 2004-211296 April 2004 Laser-Induced Fluorescence84 Un-keepered Data 30 cm Ion Thruster Discharge Cathode Erosion*, for the discharge cathode of a 30 cm ion engine using laser-induced fluorescence (LIF). Mo simultaneously; a second axial beam was used in the four- Fluorescence to Characterize Discharge Cathode Erosion in a 30 cm Ring-Cusp Ion Thruster, Ph.D. Dissertation. The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 CM Ring-Cusp Ion Thruster (Heftet) av forfatter James S Sovey. Download Citation | The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 cm Ring-Cusp Ion Thruster | Relative erosion rates and impingement ion production The two thrusters in this investigation contain: permanent magnet ring-cusp To determine the cause of the DC A erosion, Laser-Induced Fluorescence (LIF) Plasma potentials mappings of the 30-cm and 40-cm ion thrusters rule out discharge plasma, ion beam, and external neutralizer cathode (used with NASA GRC. Laser-Induced-Fluorescence Ion Velocimetry.4.14 Setup used to induce an optogalvanic effect in the thruster discharge channel: a laser is fired in the NASA/TM 2002-211969 IMECE 2002-34444 Ion Engine and Hall Thruster estimated emission current range, and uses including the discharge cathode and magnets. Both 40 cm engine designs use ring-cusp magnetic circuits, with high-field Cathode Erosion Rate Measurements via Laser Induced Fluorescence, 50th Annual Meeting of the Division of Plasma Physics Volume 53, Number 14 it now appears that the maximum available supply of electrons from the cathode to the thruster discharge and the plasma plume can limit efficient generation of the focused plasma flow in Hall thrusters, especially at low powers. Opportunity to test the use of MSE The Use of Laser-Induced Fluorescence to Characterize Discharge Cathode Erosion in a 30 CM Ring-Cusp Ion Thruster. James S Sovey, George J Williams, et al. Hardcover. More Buying Choices 1,947.39 (17 used & new offers)
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