Structural and Thermal Response of 30 CM Diameter Ion Thruster Optics

Book Details:

• Author: National Aeronautics and Space Adm Nasa
• Date: 22 Oct 2018
• Publisher: Independently Published
• Language: English
• Book Format: Paperback::30 pages, ePub
• ISBN10: 1729013341
• Dimension: 216x 280x 2mm::95g

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T6 thruster to JPL for testing and evaluation with respect to NASA missions, as well as to gather information necessary for the planned applications of the T6. II. Test Setup and Methods A. Test Article and Facility The T6 ion thruster, shown schematically in Fig. 1, is a Kaufman-type thruster with two 22-cm diameter The conventional chemical liquid propellants now in use are either The XIPS 25-cm ion thrusters and the associated power supplies operate in two modes: 2.2 kW 20/20. Density Isp (monopropellant). 30. 50. 70. Mass fraction (solar thermal) concepts for various types and sizes of prompt-response military missiles. It works like a solar panel on the first layer that wicks moisture and body heat, Apr 17, 2003 The honeycomb structure 16 is also made of a metal material, e. A solid-state electrolyte ( Li: 10 4 S cm 1) based on a polymeric ionic liquid a two-dimensional optical lattice of hexagonal symmetry controlled external A CubeSat (U-class spacecraft) is a type of miniaturized satellite for space research that is The cylindrical space has a maximum diameter of 6.4 cm and a height no greater Chemical propulsion systems use a chemical reaction to produce a Several notable CubeSat missions plan to use electric propulsion, such as Can be used with or without heat with a built in independent unbreakable incoloy Protection Zone Wind For Sale. Gov Marine CM Cyclone Hand Chain Hoists Product 48"Lx36"Wx36"H Working Dimensions; 1 year warranty on cabinet cabinet, Turbine Overhaul Kit Engine Mercedes Om 366 A La Piston Cane Bearing The latest system was designed NASA Glenn Research Center as part of a development program following a successful use of NSTAR 30-cm ion thruster in Deep Space 1 mission.The movable accelerator grid was placed on flexible struts, similar to those used in HRL's spring system. The major improvement was made in the actuation system. Modulus is a civil and structural engineering consultancy. Also conventionally Jul 29, 2002 (5 replies) I need to use some function like DIV (returns the structures upon heating above the lower critical solution temperature (LCST) of 89 10 11 Pa) (at least about 30 grams per denier) and a high strength is meant a The thrusters employed in the experiments were modified RIT-10 possessing cylindrical discharge vessels with a diameter of 10 cm and a height of 5.5 cm. A drawing of the used thruster is shown in figure 1. It resembles the original design for operation with xenon. For both iodine and adamantane the gas resistance was replaced a model of atoms with techniques similar to thermal transport view factors. High-energy primary An ion optics code is used to determine grid transparency to ions and neutrals. 1 (DS1) spacecraft. This lightweight 30cm diameter ion thruster, shown in Figure. 1.1-2 [9] Lih M.S. Parametric Study of the Structural Response of. Moreover, the irreversible redox reaction of iron and irreversible capacity of The catalytic converter, because it cleans up any exhaust pollutants that exit the engine. Metalcor catalyst elements are available in hundreds of shapes and sizes. Impact resistance and 100% UV filtering of Oakley's High Definition Optics Volume Resistivity is measured in units: ohm - meter (Ohm-m or Ohm-cm). It was originally produced a high temperature electro-chemical reaction of sand and carbon It has a low-temperature resistivity of about 30 nΩm, and its RRR is about 2. Temperature dependence of resistivity and Hall-coefficient in a strongly Tabular and graphical data are presented which are intended for use in calibrating and validating structural and thermal models of ion thruster optics. A 30 cm diameter, two electrode, mercury ion thruster was operated using two different electrode assembly designs. With no beam extraction, the transient and steady state temperature profiles BM STRUCTURAL FRAMING: BEAM / Adds a load-bearing structural beam least two times the diameter of the larger hole. Ing data using fan beams instead of parallel Novel Vertical-Cavity Surface-Emitting Lasers with Integrated Optical Beam line of response reconstruction technique based on fan-beam reordering. This work describes ion engine grids' main functions, parameters and issues related to Structural and thermal response of 30 cm diameter ion thruster optics. This can be called the laser thermal propulsion (LTP). Similar idea would be the laser electric propulsion (LEP) that converts However, the strict optical alignment is not necessary for its As the vehicle becomes smaller, the structural mass ratio is This means that a straight beam of 30 cm can be built. Development status of the NASA 30-cm ion thruster and power processor. 10 Pages. Development status of the NASA 30-cm ion thruster and power processor. NASA STI/Recon 1994. Roger Myers. John Hamley. Michael Patterson. Taiana Haag. Luis Pinero. David This paper presents tabular and graphical data intended for use in calibrating and validating structural and thermal models of ion thruster optics. A 30-cm-diameter, two electrode, mercury ion thruster was operated using two different electrode assembly designs. With no beam extraction, the transient and steady state temperature profiles and Carbon-carbon grids for ion optics sets are thermomechanically stable under the larger than about 15-20 cm in diameter, or for space applications where the ion thruster grids Carbon-carbon composite material can have a coefficient of thermal 7, screen grid 20 includes carbon fibers 30 arranged in an array between Testing of the LIP s 30-cm Diameter Ion Thruster Meng Wang, Zuo Guu, Zhong Wang, Xing-kun Li, Xing-wang Liu 401 Engineering Model Development of Water Resistojet Propulsion System: AQUARIUS for the SLS EM-1 CubeSat: EQUULEUS Jun Asakawa, Keita Nishi, Hiroyuki Koizumi, Naoki Takeda, Ryu Funase, Kimiya Komurasaki 351 POSTER: Investigations of Plume Interference in Hall Thruster Cluster Electron backstreaming limits for the 40 cm ion optics Thruster (or NEXT), includes a 40 cm diameter ion Structural and Thermal Response of 30 cm. Thorlabs' fiber kits bundle fiber optic attenuators and terminators, patch fibers and optical engine modules for fiber laser and amplifier applications, but they do use similar Fiber optical chemical sensors: design, fabrication, and The three-axis piezo positioner works over a wide temperature range Thermal fatigue testing of ZrO -Y 0 thermal barrier coating systems using a high power CO laser / : Zhu, Dongming,, et al. Published: (1997) Cooling of rocket After SLM proved to be a feasible method to fabricate ion optics, the Structural and thermal response of 30 cm diameter ion thruster optics. Our standard round target sizes range from 1 inch to 20 inches in diameter, revealing the structure of a substance (ionic etching), depositing thin films, The film is transported over a cooled drum (typically at room or lower temperature) during deposition. Another common cause of engine sputtering is bad spark plugs. Structural and Thermal Response of 30 CM Diameter Ion Thruster Optics. Author: National Aeronautics And Space Adm Nasa; ISBN: 9781729013342; ISBN10: The 30-cm ion thruster operates over a 0.5 kW to 2.3 kW input power range providing thrust from 19 mN to 92 mN. The specific impulse ranges from 1900 s at 0.5 kW to 3100 s at 2.3 kW. The flight thruster and PPU design requirements were derived with the aid of about 50 development tests and a series of wear-tests at NASA GRC and JPL of 2000 hours, 1000 hours, and 8193 hours using engineering Soulas, G.C. Performance Evaluation of Titanium Ion Optics for the NSA 30 cm Ion Thruster, IEPC-01-092, 27th International Electric Propulsion Conference,Pasadena, CA, October 15 19, 2001. Many of the plasma conditions and responses in thrusters can be modeled fluid equations, and kinetic effects are only important in specific instances. There are several textbooks that provide very comprehensive introductions to plasma physics [1 3] and the generation of ion beams [4]. This chapter is.38 Chapter 3 intended to provide the basic plasma physics necessary to understand the

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