Spacecraft bus voltage and power 0.1 1 10 2 3 4 1001000 DSCS II RCA SATCOM MILSTAR TDRS SKYLAB SPACE TELESCOPE LEASAT ISS HS702 space factory 、 space hotel.

Slides:

Advertisements

Similar presentations

Plasma Window Options and Opportunities for Inertial Fusion Applications Leslie Bromberg Ady Herskovitch* MIT Plasma Science and Fusion Center ARIES meeting.

Advertisements

D e t e c t o r s f o r H P L C.

H – Ion Source Development at RAL & FNAL PASI Meeting, RAL 3 rd April 2013 Scott Lawrie & Dan Faircloth (RAL) Dan Bollinger (FNAL)

Introduction to Plasma-Surface Interactions Lecture 6 Divertors.

Alex.A. Samarian and Brian.W. James School of Physics, University of Sydney, NSW 2006, Australia Sheath edge location The charge of dust particles in sheath.

1 Div. Of Plasma Application & Tech. H 2 Retention and Physical/Chemical Evaporation Problems from the Interactions between ECR Plasma and FLiNaK Molten.

W. Udo Schröder, 2004 Instrumentation 1. W. Udo Schröder, 2004 Instrumentation 2 Probes for Nuclear Processes To “see” an object, the wavelength of the.

1 CENTER for EDGE PLASMA SCIENCES C E PS Status of Divertor Plasma Simulator – II (DiPS-II) 2 nd PMIF Workshop Sep. 19, 2011 Julich, Germany H.-J. Woo.

Plasmas in Space: From the Surface of the Sun to the Orbit of the Earth Steven R. Spangler, University of Iowa Division of Plasma Physics, American Physical.

1 Atomic Absorption Spectroscopy Atomic Emission Spectroscopy Lecture 18.

TEST GRAINS AS A NOVEL DIAGNOSTIC TOOL B.W. James, A.A. Samarian and W. Tsang School of Physics, University of Sydney NSW 2006, Australia

1 Introduction to Plasma Immersion Ion Implantation Technologies Emmanuel Wirth.

Langmuir’s Paradox: Can Ion instability at sheath-edge thermalize the ions too? Chi-Shung Yip Noah Hershkowitz  University of Wisconsin – Madison Greg.

PSSC Space Instrument Laboratory Plasma instrument calibration system provides an ion beam of energy range up to 130keV/charge in a clean room To develop.

Fusion Physics - Energy Boon or Nuclear Gloom? David Schilter and Shivani Sharma.

Preinjector Group Collider-Accelerator Department

Prototype TPC Tests C. Lu 12/9/98 V = 0. Gas gain test for the low pressure chamber The chamber is constructed with the following parameters: D anode.

Beam Interaction with Chamber Aerosols D. R. Welch and D. V. Rose, MRC C. L. Olson, SNL S. S. Yu, LBNL October 2-4, 2002 Presented at the ARIES Project.

University of Illinois Optical and Discharge Physics SPEED AND SELECTIVITY: CUSTOM WAVEFORMS 200 V (Slow, selective) MASK SiO 2 Si  15 mTorr, Ar/C 4 F.

MODELING OF MICRODISCHARGES FOR USE AS MICROTHRUSTERS Ramesh A. Arakoni a), J. J. Ewing b) and Mark J. Kushner c) a) Dept. Aerospace Engineering University.

MODELING OF MICRODISCHARGES FOR USE AS MICROTHRUSTERS Ramesh A. Arakoni a), J. J. Ewing b) and Mark J. Kushner c) a) Dept. Aerospace Engineering University.

Ion Beam Cocktail Development and ECR Ion Source Plasma Physics Experiments at JYFL Olli Tarvainen 11th International Conference on Heavy Ion Accelerator.

the Ionosphere as a Plasma

F.M.H. Cheung School of Physics, University of Sydney, NSW 2006, Australia.

The Sun. Sun Considered a medium STAR 93,000,000 miles away from Earth 1.39 million kilometers in diameter (one million Earths can fit inside the sun.

NON-EQUILIBRIUM HEAVY GASES PLASMA MHD-STABILIZATION IN AXISYMMETRIC MIRROR MAGNETIC TRAP A.V. Sidorov 2, P.A. Bagryansky 1, A.D. Beklemishev 1, I.V. Izotov.

Carbon Injector for FFAG

Mass Spectrometry Brief introduction (part1) I. Sivacekflerovlab.jinr.ru 2012 Student Practice in JINR Fields of Research 1.oct.2012.

COULOMB ’05 Experiments with Cooled Beams at COSY A.Lehrach, H.J.Stein, J. Dietrich, H.Stockhorst, R.Maier, D.Prasuhn, V.Kamerdjiev, COSY, Juelich, I.Meshkov,

Vacuum Technology in Electrical Switches

TRIGGERING EXCIMER LASERS BY PHOTOIONIZATION FROM A CORONA DISCHARGE* Zhongmin Xiong and Mark J. Kushner University of Michigan Ann Arbor, MI USA.

Vacuum Spark Ion Source: High Charge States Ion Beam E.M. Oks, G.Yu. Yushkov, A.G. Nikolaev, and V.P. Frolova High Current Electronics Institute, Siberian.

Tools for Nuclear & Particle Physics Experimental Background.

HiCAT- a Novel Diagnostic for Mass Loss and Species Composition Analysis Goal: Provide In-situ, real time characterization of ablated/ vaporized materials.

Charge Exchange Containment Cell Ryan Bosworth, Doug Claes, Michael Johnson, and Trey Quiller The Exploration and Space Technology (EaST) Lab Dr. Andrew.

Phonon spectrum measured in a 1D Yukawa chain John Goree & Bin Liu.

VNIIA neutron generators for thermonuclear research

Ion Energy Distributions from a Permanent-Magnet Helicon Thruster Francis F. Chen, UCLA Low Temperature Plasma Physics Webinar, January 17, 2014.

EAST Data processing of divertor probes on EAST Jun Wang, Jiafeng Chang, Guosheng Xu, Wei Zhang, Tingfeng Ming, Siye Ding Institute of Plasma Physics,

THE IOWA IQ-2 Q MACHINE. Schematic diagram of IQ-2 HP-E HP-W Pumping system 30 cm 198 cm 60 cm 63.5 mm 50 cm.

Characterization of nuclear transmutations by 638 nm laser beams ( ¹ ) STMicroelectronics, via Tolomeo, Cornaredo Milano-I ( ² ) Applied Electronics.

 Plasma backlight generates light using pulsed dielectric barrier discharge  Applied voltage excites xenon atoms in the gas chamber and enables the formation.

Radio Waves Interaction With Interstellar Matter

Engineer Training UV System Highlights TJ8300 / TJ8500 UV System Highlights.

Status of the Source of Polarized Ions project for the JINR accelerator complex (June 2013) V.V. Fimushkin, A.D. Kovalenko, L.V. Kutuzova, Yu.V. Prokofichev.

Brief description of the INAF/IAPS facility. The IAPS-INAF plasma chamber is designed to reproduce a large volume of plasma with ionospheric parameters,

Ion Energetics of the Modes of the CubeSat Ambipolar Thruster Timothy A. Collard 1, J. P. Sheehan 1, and Alec D. Gallimore 1 1 Aerospace Engineering, University.

Secondary Ion Mass Spectrometry A look at SIMS and Surface Analysis.

Effect of Re Alloying in W on Surface Morphology Changes After He + Bombardment at High Temperatures R.F. Radel, G.L. Kulcinski, J. F. Santarius, G. A.

Jarred Alexander Young September 18,  Beam Analysis  Performed scans with RPA perpendicular to beam to look at possible CEX behavior  Material.

of magnetized discharge plasmas: fluid electrons + particle ions

PROPERTIES OF UNIPOLAR DC-PULSED MICROPLASMA ARRAYS AT INTERMEDIATE PRESSURES* Peng Tian a), Chenhui Qu a) and Mark J. Kushner a) a) University of Michigan,

11/8/ Diagnostic and Etching Studies of Inductively Coupled Plasmas SFR Workshop November 8, 2000 Matthew Radtke, John Coburn, David Graves Berkeley,

An Estimation of Critical Electron Density at Just Starting Breakdown in Gases Mase. H Professor Emeritus of Ibaraki University.

Large Area Plasma Processing System (LAPPS) R. F. Fernsler, W. M. Manheimer, R. A. Meger, D. P. Murphy, D. Leonhardt, R. E. Pechacek, S. G. Walton and.

THIN FILMS FOR CLIC ELEMENTS Outline Motivation The role of MME-CCS DB and MB transfer lines Main beam Main beam quadrupoles Other issues conclusions CLIC.

Spectral signatures of dynamic plasmas  Many space missions over the past 30 yrs  A very dynamic Sun SoHO/EIT Hinode/SOT.

NATIONAL INSTITUTE OF NUCLEAR PHYSICS Legnaro National Laboratories Numerical simulation strategy for the SPES FEBIAD ion source INFN – CISAS collaboration.

SPES Target Group Data…… INFN-CISAS-CNR collaboration The Ablation Ion Source for refractory metal ion beams A preliminary design.

Nazli TURAN, Yavuz Emre KAMIS, Murat CELIK

Seok-geun Lee, Young-hwa An, Y.S. Hwang

DOE Plasma Science Center Control of Plasma Kinetics

Work with plasmas Work with RPAs

SPINE Meeting 2016 Secondary electron emission model effect on the electrostatic equilbrium in GEO Pierre Sarrailh Mohamed Belhaj Denis Payan.

FEBIAD ion source development efficiency improvement

Testbed for Plasma-Wall and Etch Product Studies

Chapter 27 Problems 1,11,12,15,16,22,32,33,36,49,56.

Lecture №7. 1. The condition of self discharge. 2. Paschen curves. 3. Time of discharge. 4. Gas breakdown in a nonuniform electric field. 5. The emergence.

The Experimental Study on Vacuum Breakdowns by Optical Diagnosis

Presentation transcript:

Spacecraft bus voltage and power DSCS II RCA SATCOM MILSTAR TDRS SKYLAB SPACE TELESCOPE LEASAT ISS HS702 space factory 、 space hotel Spacecraft power (kW) Bus voltage(V) EOS-AM ETS-8 Before mid-90s After mid-90s After 2010 experimental solar power satellite severe plasma interaction 400V is necessary for next-generation 1MW large space platform after ISS

Spacecraft potential in LEO

How an arc occur?

Charging of coverglass by ions Field intensification at triple junction Field emission of electrons Ionization of desorbed gas Neutralization of coverglass charge Repeated arcing and charging process

Sustained arc

Test facility

GEO Plasma Environment Test Chamber Operational since March 2002 Diameter 60cm, Length 90cm Minimum Pressure 3x10 -7 Torr Equipped with an electron beam gun, a non-contacting surface potential probe, a Kaufman type plasma source, a xy-stage, a low-pressure mercury lamp, halogen heat lamps, a video-image analysis system Electron beam (max30kV) Trek probe X-Y stage controller Trek probe Solar array coupon X-Y stage

LEO Plasma Environment Test Chamber Operational since 1998 Diameter 1m, Length 1.2m (excluding sub-chamber) Minimum pressure 1x10 -6 Torr Plasma density 1x10 12 m -3 or above Equipped with an ECR plasma source, a deuterium UV lamp, a mass spectrometer, a x-y stage, a video-image analysis system, a high speed data acquisition system, halogen heat lamps, a spectrum analyzer, a metal-halaide lamp

Pressure chamber (1 MPa)  = 600 mm

time V fo density temperature density V fo Measurement of gas propertiesMeasurement of flashover voltage Build-up of database

Distribution of charge exchange ions and neutralizer electrons near a GEO satellite with an ion thruster Ion densityElectron density

Example of three-dimensional simulations x y z  B  v d