Beams and magnetized plasmas

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Beams and magnetized plasmas"

Transcription

1 Beams and magnetized plasmas 1 Jean-Pierre BOEUF LAboratoire PLAsma et Conversion d Energie LAPLACE/ CNRS, Université Paul SABATIER, TOULOUSE

2 Beams and magnetized plasmas 2 Outline Ion acceleration and electron transport through a magnetic barrier Principle of positive ion acceleration through a magnetic barrier Collisional & turbulent EXB electron transport in a magnetic barrier Illustration of plasma turbulence with simple 1D PIC Negative ion sources for neutral beam injection Principles of NIS for NBI Plasma transport across the magnetic filter in a negative ion source Plasma rotation in an e-beam sustained magnetized plasma column Conclusion

3 Beams and magnetized plasmas 3 Outline Ion acceleration and electron transport through a magnetic barrier Principle of positive ion acceleration through a magnetic barrier Collisional & turbulent EXB electron transport in a magnetic barrier Illustration of plasma turbulence with simple 1D PIC Negative ion sources for neutral beam injection Principles of NIS for NBI Plasma transport across the magnetic filter in a negative ion source Plasma rotation in an e-beam sustained magnetized plasma column Conclusion

4 anode Beams and magnetized plasmas Principle of positive ion acceleration through a magnetic barrier 4 Ion acceleration through a magnetic field barrier Magnetic barrier = B field ^ to electron path from cathode to anode ~ 300 V between emissive cathode (no cathode sheath) and anode Drop of electron conductivity in magnetic field barrier Large electric field Ion extraction and acceleration B plasma ions electrons EXB drift must be closed (azimuthal symmetry) Hall thrusters, ion sources for processing E cathode (electron emission)

5 Electric Field (10 4 V/m) Magnetic Field (Gauss) Potential (V) Ionization (10 23 m -3 s -1 ) Beams and magnetized plasmas Principle of positive ion acceleration through a magnetic barrier 5 Hall Thruster EXB B V S exhaust plane E 100 acceleration 5 x ionization Position (cm) exhaust plane Electron drift in the azimutal direction: Hall current // EXB 2 1 E x B r Magnetic barrier is efficient because of closed drift in azimutal direction Position (cm)

6 Beams and magnetized plasmas Principle of positive ion acceleration through a magnetic barrier 6 20 kw Hall Thruster PPS 20k ML, SNECMA CNRS CNES, Euopean project HiPER

7 Azimutal Position Rq (mm) Beams and magnetized plasmas Principle of positive ion acceleration through a magnetic barrier 7 2D PIC simulations predict azimuthal instability 5 E q (V/cm) Amplitude of the azimutal field ~ axial field Wavelength ~ larmor radius 2 0 y=rq x Axial Position X (cm) B r E x J.C. Adam et al., Physics of Plasmas 11, 295 (2004) EPS 2008 Hersonissos

8 Beams and magnetized plasmas Principle of positive ion acceleration through a magnetic barrier 8 Azimuthal drift instability - theory Velocity spread comparable to EXB drift velocity Generated by turbulence Dispersion equation of electrostatic waves in a hot magnetized electron beam Cold, non magnetized ions Kinetic description of magnetized electrons Drift velocity not much smaller than thermal velocity V x V z x10 7 m/s Axial Position (cm) Quasi linear theory gives resonances at kvd Large azimutal drift velocity in the exhaust region instability plasma turbulence Short wavelength close to electron gyroradius kvd n n A Ducroq et al. Physics of Plasmas, 13, (2006) EPS 2008 Hersonissos

9 Beams and magnetized plasmas Collisional & turbulent EXB electron transport in a magnetic barrier 9 Theory + simulation predict that transport across B is enhanced by turbulent azimuthal E field Realistic (and simpler) models of Hall Thrusters need an estimation of electron mobility Can we define an electron mobility in the conditions of a Hall thruster? EPS 2008 Hersonissos

10 Beams and magnetized plasmas Collisional & turbulent EXB electron transport in a magnetic barrier 10 1D PIC MCC model (azimuthal, EXB direction) z (radial) B EXB direction periodic boundary conditions E x y (azimuthal) x (axial) - Given E, B, plasma density, gas density - Particle-In-Cell Monte Carlo Collisions - 3D-3V trajectories but Poisson s equation in ExB direction only - Collisions included, ionization treated as excitation

11 Beams and magnetized plasmas Collisional & turbulent EXB electron transport in a magnetic barrier 11 1D PIC MCC model (azimuthal, EXB direction) B turbulence in azimuthal direction L=0.5 cm E x EXB y 70 V/cm n i n e E y E x =100 V/cm B=100 Gauss n=10 16 m -3 p=0.01 torr

12 Beams and magnetized plasmas Collisional & turbulent EXB electron transport in a magnetic barrier 12 1D PIC MCC model (azimuthal, EXB direction) B turbulence in azimuthal direction E x EXB y L=1 cm L=2 cm n i n e n i n e y y E E E x =100 V/cm B=100 Gauss n=5x10 16 m -3 p=0.02 torr

13 Mobility (m 2 /V/s) Beams and magnetized plasmas Collisional & turbulent EXB electron transport in a magnetic barrier 13 1D PIC MCC model (azimuthal, EXB direction) e n Classical mobility e 2 2 m n Electron mobility can be deduced from PIC model and compared with classical mobility 10 E=10 4 V/m; B=10 mt - Turbulence appears around 0.1 torr ( /n>~2) - Turbulent mobility depends on plasma density - No solutions below ~0.01 torr (depends on n) - Real operating conditions much below 0.01 torr (gas density m -3 ) Pressure (torr) classical PIC, n=10 17 m -3 PIC, n=10 16 m -3 Question: can we define a mobility in the conditions of a Hall thruster if we include wall losses (momentum and energy) thruster

14 Beams and magnetized plasmas 14 Outline Ion acceleration and electron transport through a magnetic barrier Principle of positive ion acceleration through a magnetic barrier Collisional & turbulent EXB electron transport in a magnetic barrier Illustration of plasma turbulence with simple 1D PIC Negative ion sources for neutral beam injection Principles of NIS for NBI Plasma transport across the magnetic filter in a negative ion source Plasma rotation in an e-beam sustained magnetized plasma column Conclusion

15 Principles of NIS for NBI 15 Magnetic barrier (or filter) is also used in hydrogen negative ion sources Context of fusion applications Heating of ITER plasma by high energy deuterium neutral beam (1 MeV) Negative ions produced in a low temperature ICP plasma source Ions are accelerated to 1 MeV, then neutralized and injected in ITER plasma At such high energy negative ions easier to neutralize than positive ions Magnetic filter used to limit electron energy and electron current extraction

16 Principles of NIS for NBI 16 EC, IC, and H-NB heating systems, i.e. 73 MW, all required for the 1st phase of ITER EC IC Electron Cyclotron 20 MW/CW, 170 GHz, 24 gyrotrons Ion Cyclotron 20 MW/CW, MHz H-NB Heating-Neutral Beam 2 x 16.5 MW, 1 MeV, Deuterium 200 A/m 2, 3600 s The Neutral Beam Injection system is essential for the ITER program

17 Principles of NIS for NBI 17 Negative Ion Source for the ITER NBI System RF Inductively Coupled Plasma at 1 MHz Must provide negative ions H - /D -, 40 A, 200 A/m 2 Must operate at low pressure ~ 0.3 Pa Co-extracted electron current < negative ion current Current uniformity better than ±5% The negative ion source is developped at IPP Garching Complete Neutral Beam Injection system built in Padova Source modeling (+ validation experiments) at LAPLACE in Toulouse

18 Principles of NIS for NBI E. Speth et al, Nucl. Fusion 46 S220 (2006) 18 Requirements 1 MeV negative ions, 40 A, 200 A/m 2, current uniformity better than ±5%, pulse duration 3600 s pressure ~ 0.3 Pa, ICP 100 kw, 1 MHz co-extracted electron current < extracted negative ion current filter field H 2 N S grids H - Driver Expansion Region Extraction Region

19 Plasma transport across the magnetic filter 19 2D PIC MCC model of negative ion source Source geometry and Magnetic Filter driver expansion filter extraction B bias Given absorbed power in driver Collisions with neutrals included (elastic, excitation, ionization) e-i Coulomb collisions included Simulations performed at lower densities (scaling assumed, Debye sheath not resolved) JP Boeuf, J Claustre, B Chaudhury, G Fubiani, Phys Plasmas 19, (2012) G Fubiani, G J M Hagelaar, St Kolev and J-P Boeuf, Phys. Plasmas 19, (2012)

20 Plasma transport across the magnetic filter 20 2D PIC MCC model of negative ion source Plasma density and plasma potential Electron Density Plasma Potential m V 36 V Biased plasma grid 20 V bias V Plasma not uniform along extracting grid due to diamagnetic currents P=80 kw/m

21 Plasma transport across the magnetic filter 21 2D PIC MCC model of negative ion source Electron Current Density from PIC MCC simulations Chamber walls perpendicular to JXB Magnetic barrier not as efficient as in closed drift geometry (e.g. Hall thrusters) Large electron current through filter Scales as 1/B Transport across B is strongly affected (and controlled) by the presence of walls Electron Current Density Distribution no negative ions

22 Plasma transport across the magnetic filter 22 2D PIC MCC model of negative ion source Positive Ion Current Density from PIC MCC simulations v Ions are only weakly magnetized v Positive Ion Current Density Distribution no negative ions

23 Plasma transport across the magnetic filter 23 2D PIC MCC model of negative ion source Understanding Electron Current Density Distribution n kt e Electron Pressure: P e =n e kt e e n kt e e B B Large electron pressure gradient at the entrance of the filter e e n kt B large in the filter Diamagnetic electron current large in the filter Because of walls perpendicular to diamag current, generation of E field // and opposing diamagnetic current asymmetry of plasma EXB current through filter

24 Plasma transport across the magnetic filter 24 2D PIC MCC model of negative ion source Electron Current Density from PIC MCC simulations Chamber walls perpendicular to JXB Magnetic barrier not as efficient as in closed drift geometry (e.g. Hall thrusters) Large electron current through filter Scales as 1/B Transport across B is strongly affected (and controlled) by the presence of walls Electron Current Density Distribution

25 Plasma rotation in an e-beam sustained magnetized plasma column 25 New source under investigation New Neutral beam Injection system (for DEMO) based on photo-neutralization of negative ions Proposed by CEA Cadarache (A. Simonin) Requires a long and thin source to produce an intense beam sheet Magnetized plasma column (uniform B field) Plasma generated by filaments in a first phase, ICP or helicons in a second phase Better uniformity? Plasma rotation? Simonin et al. Nucl. Fusion 52 (2012)

26 1 m Negative Ion Source for Neutral Beam Injection Plasma rotation in an e-beam sustained magnetized plasma column 26 New source under investigation New Neutral beam Injection system (for DEMO) based on photo-neutralization of negative ions Proposed by CEA Cadarache (A. Simonin) Requires a long and thin source to produce an intense beam sheet filaments ICP or helicons B grids B grids 20 cm Simonin et al., Nucl. Fusion 52 (2012)

27 Plasma rotation in an e-beam sustained magnetized plasma column 27 Simonin et al., Nucl. Fusion 52 (2012)

28 Plasma rotation in an e-beam sustained magnetized plasma column 28 New source under investigation Similarities with magnetized plasma columns studied in different labs bias limiter e.g. magnetized plasma column MISTRAL at the PIIM lab in Marseille, france

29 Plasma rotation in an e-beam sustained magnetized plasma column 29 New source under investigation Similarities with magnetized plasma columns studied in different labs e.g. magnetized plasma column MIRABELLE at IJL, Nancy, France

30 Plasma rotation in an e-beam sustained magnetized plasma column 30 Observation of EXB rotating instability (~5 KHz), m=1 or m=2 mode Argon, 0.02 Pa, B=16 mt, 50 ev e-beam, 1 m column length, limiter 8 cm diameter S. Jaeger, N. Claire, C. Rebont, Phys. Plasmas 16, (2009)

31 Plasma rotation in an e-beam sustained magnetized plasma column 31 Magnetized plasma column studied in Marseille PIIM Lab m=2 mode, LIF measurements of ion velocity and electric field Measured plasma density (probes) Measured Ion velocity (LIF) C. Rebont, N. Claire, Th. Pierre, and F. Doveil, PRL 106, (2011)

32 Plasma rotation in an e-beam sustained magnetized plasma column 32 2D PIC MCC model of magnetized plasma column X B 2D simulation domain, B^ to simulation domain 3D, 3V trajectories 2D Poisson (assumption of uniform column flute mode) Charged particle losses in the B direction included o Bohm losses for ions frequency: 2U B /L o Electron losses when electron reaches end plates and if energy in the B direction larger than potential difference between plasma and end wall o Grid: negative bias Limiter and walls grounded

33 Plasma rotation in an e-beam sustained magnetized plasma column 33 2D PIC MCC model of magnetized plasma column Time averaged potential distribution 1 f 0

34 Plasma rotation in an e-beam sustained magnetized plasma column 34 2D PIC MCC model of magnetized plasma column Time averaged plasma density distribution 1 0

35 Plasma rotation in an e-beam sustained magnetized plasma column 35 2D PIC MCC model of magnetized plasma column Time averaged electron temperature distribution 1 0

36 Plasma rotation in an e-beam sustained magnetized plasma column 36 2D PIC MCC model of magnetized plasma column No steady state solution Rotating Instability Rotation in about 200 s 1 f 0 n (10 14 m -3 ) o Plasma density o Electric Potential

37 Plasma rotation in an e-beam sustained magnetized plasma column 37 2D PIC MCC model of magnetized plasma column No steady state solution Rotating Instability o Plasma density o Distribution of ion velocity o Electric Potential Ion velocity tangent to limiter edge in plasma arm (as in experiments) Ion velocity perpendicular to limiter edge ahead of plasma arm (as in experiments) Ion velocity follows EXB Rotating Instability (Modified Simon-Hoh?) + Kelvin Helmhotlz structures

38 Plasma rotation in an e-beam sustained magnetized plasma column 38 2D PIC MCC model of magnetized plasma column 1 n (10 14 m -3 ) f (2.5 V) 0 o Plasma density t = s o Electric Potential

39 Plasma rotation in an e-beam sustained magnetized plasma column 39 2D PIC MCC model of magnetized plasma column 1 n (10 14 m -3 ) f (2.5 V) 0 o Plasma density o Electric Potential t = s

40 Plasma rotation in an e-beam sustained magnetized plasma column 40 2D PIC MCC model of magnetized plasma column 1 n (log, m -3 ) f (2.5 V) 0 o Plasma density o Electric Potential t = s

41 Beams and magnetized plasmas 41 Conclusions Ion acceleration and electron transport through a magnetic barrier Very simple and appealing concept Very complex and non-linear operation Turbulence and plasma-wall interaction both important Can we define an electron mobility? Negative ion sources for neutral beam injection Magnetic filter with non-closed EXB or XB path induces assymetry and leaks 2D PIC model improve understanding of rotating magnetized plasma column

42 Plasma rotation in an e-beam sustained magnetized plasma column 42 n (10 14 m -3 ) f (2.5 V) 1 n (log, m -3 ) T e (5 ev) 0

43 Plasma rotation in an e-beam sustained magnetized plasma column 43 1 n e (log, m -3 ) n i (log, m -3 ) 0 Electron and ion densities (log)

Modélisation de sources plasma froid magnétisé

Modélisation de sources plasma froid magnétisé Modélisation de sources plasma froid magnétisé Gerjan Hagelaar Groupe de Recherche Energétique, Plasma & Hors Equilibre (GREPHE) Laboratoire Plasma et Conversion d Énergie (LAPLACE) Université Paul Sabatier,

More information

KINETIC DESCRIPTION OF MAGNETIZED TECHNOLOGICAL PLASMAS

KINETIC DESCRIPTION OF MAGNETIZED TECHNOLOGICAL PLASMAS KINETIC DESCRIPTION OF MAGNETIZED TECHNOLOGICAL PLASMAS Ralf Peter Brinkmann, Dennis Krüger Fakultät für Elektrotechnik und Informationstechnik Lehrstuhl für Theoretische Elektrotechnik Magnetized low

More information

Numerical study of a Double Stage Hall Effect Thruster

Numerical study of a Double Stage Hall Effect Thruster Numerical study of a Double Stage Hall Effect Thruster IEPC--1 Presented at the 9 th International Electric Propulsion Conference, Princeton University, October 1 November, C. Boniface *, G.J.M Hagelaar,

More information

Magnetic field dependance of the plasma properties. in a negative hydrogen ion source for fusion

Magnetic field dependance of the plasma properties. in a negative hydrogen ion source for fusion Magnetic field dependance of the plasma properties in a negative hydrogen ion source for fusion L. Schiesko, P. McNeely, P. Franzen, U. Fantz and the NNBI Team Max-Planck-Institut für Plasmaphysik, EURATOM

More information

ion flows and temperatures in a helicon plasma source

ion flows and temperatures in a helicon plasma source Time-resolved, laser-inducedfluorescence measurements of ion flows and temperatures in a helicon plasma source Earl E. Scime* June, 2010 International Conference on Spectral Line Shapes * Ioana Biloiu,

More information

Fundamentals of Plasma Physics

Fundamentals of Plasma Physics Fundamentals of Plasma Physics Definition of Plasma: A gas with an ionized fraction (n i + + e ). Depending on density, E and B fields, there can be many regimes. Collisions and the Mean Free Path (mfp)

More information

Modeling of the negative ion source and accelerator of the ITER Neutral Beam Injector

Modeling of the negative ion source and accelerator of the ITER Neutral Beam Injector Modeling of the negative ion source and accelerator of the ITER Neutral Beam Injector Gwenaël Fubiani To cite this version: Gwenaël Fubiani. Modeling of the negative ion source and accelerator of the ITER

More information

Comparison of SPT and HEMP thruster concepts from kinetic simulations

Comparison of SPT and HEMP thruster concepts from kinetic simulations Comparison of SPT and HEMP thruster concepts from kinetic simulations K. Matyash, R. Schneider, A. Mutzke, O. Kalentev Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald, D-1749, Germany

More information

One dimensional hybrid Maxwell-Boltzmann model of shearth evolution

One dimensional hybrid Maxwell-Boltzmann model of shearth evolution Technical collection One dimensional hybrid Maxwell-Boltzmann model of shearth evolution 27 - Conferences publications P. Sarrailh L. Garrigues G. J. M. Hagelaar J. P. Boeuf G. Sandolache S. Rowe B. Jusselin

More information

A COMPUTATIONAL STUDY OF SINGLE AND DOUBLE STAGE HALL THRUSTERS

A COMPUTATIONAL STUDY OF SINGLE AND DOUBLE STAGE HALL THRUSTERS A COMPUTATIONAL STUDY OF SINGLE AND DOUBLE STAGE HALL THRUSTERS Kay Sullivan, Manuel Martínez-Sánchez, Oleg Batishchev and James Szabo Massachusetts Institue of Technology 77 Massachusetts Avenue Cambridge,

More information

A novel helicon plasma source for negative ion beams for fusion

A novel helicon plasma source for negative ion beams for fusion A novel helicon plasma source for negative ion beams for fusion Ivo Furno 1 R. Agnello 1, B. P. Duval 1, C. Marini 1, A. A. Howling 1, R. Jacquier 1, Ph. Guittienne 2, U. Fantz 3, D. Wünderlich 3, A. Simonin

More information

arxiv: v1 [physics.plasm-ph] 12 Oct 2008

arxiv: v1 [physics.plasm-ph] 12 Oct 2008 Direct Observation of a Cross-Field Current-Carrying Plasma Rotating Around an Unstable Magnetized Plasma Column S. Jaeger, and Th. Pierre arxiv:0810.2077v1 [physics.plasm-ph] 12 Oct 2008 Laboratoire PIIM,

More information

Contents Motivation Particle In Cell Method Projects Plasma and Ion Beam Simulations

Contents Motivation Particle In Cell Method Projects Plasma and Ion Beam Simulations PIC Method for Numerical Simulation Ninad Joshi NNP Group 1 Contents Motivation Particle In Cell Method Projects Plasma and Ion Beam Simulations Motivation 3 Particle simulation Ion beams and Plasmas Accelerators

More information

High-frequency Instabilities in Hall-effect Thrusters: Correlation with the Discharge Current and Thruster Scale Impact

High-frequency Instabilities in Hall-effect Thrusters: Correlation with the Discharge Current and Thruster Scale Impact High-frequency Instabilities in Hall-effect Thrusters: Correlation with the Discharge Current and Thruster Scale Impact IEPC-5- Presented at the 9 th International Electric Propulsion Conference, Princeton

More information

Current sheath formation in the plasma focus

Current sheath formation in the plasma focus Plasma Science and Applications (ICPSA 2013) International Journal of Modern Physics: Conference Series Vol. 32 (2014) 1460321 (8 pages) The Author DOI: 10.1142/S2010194514603214 Current sheath formation

More information

2D OOPIC Simulations of the Helicon Double Layer

2D OOPIC Simulations of the Helicon Double Layer 2D OOPIC Simulations of the Helicon Double Layer IEPC-2007-146 Presented at the 30 th International Electric Propulsion Conference, Florence, Italy I. Musso * Center for Studies and Activities for Space,

More information

PIC/MCC Simulation of Radio Frequency Hollow Cathode Discharge in Nitrogen

PIC/MCC Simulation of Radio Frequency Hollow Cathode Discharge in Nitrogen PIC/MCC Simulation of Radio Frequency Hollow Cathode Discharge in Nitrogen HAN Qing ( ), WANG Jing ( ), ZHANG Lianzhu ( ) College of Physics Science and Information Engineering, Hebei Normal University,

More information

Chapter 7 Plasma Basic

Chapter 7 Plasma Basic Chapter 7 Plasma Basic Hong Xiao, Ph. D. hxiao89@hotmail.com www2.austin.cc.tx.us/hongxiao/book.htm Hong Xiao, Ph. D. www2.austin.cc.tx.us/hongxiao/book.htm 1 Objectives List at least three IC processes

More information

Huashun Zhang. Ion Sources. With 187 Figures and 26 Tables Э SCIENCE PRESS. Springer

Huashun Zhang. Ion Sources. With 187 Figures and 26 Tables Э SCIENCE PRESS. Springer Huashun Zhang Ion Sources With 187 Figures and 26 Tables Э SCIENCE PRESS Springer XI Contents 1 INTRODUCTION 1 1.1 Major Applications and Requirements 1 1.2 Performances and Research Subjects 1 1.3 Historical

More information

Low Temperature Plasma Technology Laboratory

Low Temperature Plasma Technology Laboratory Low Temperature Plasma Technology Laboratory Equilibrium theory for plasma discharges of finite length Francis F. Chen and Davide Curreli LTP-6 June, Electrical Engineering Department Los Angeles, California

More information

4 Modeling of a capacitive RF discharge

4 Modeling of a capacitive RF discharge 4 Modeling of a capacitive discharge 4.1 PIC MCC model for capacitive discharge Capacitive radio frequency () discharges are very popular, both in laboratory research for the production of low-temperature

More information

PIC-MCC/Fluid Hybrid Model for Low Pressure Capacitively Coupled O 2 Plasma

PIC-MCC/Fluid Hybrid Model for Low Pressure Capacitively Coupled O 2 Plasma PIC-MCC/Fluid Hybrid Model for Low Pressure Capacitively Coupled O 2 Plasma Kallol Bera a, Shahid Rauf a and Ken Collins a a Applied Materials, Inc. 974 E. Arques Ave., M/S 81517, Sunnyvale, CA 9485, USA

More information

Improved Plasma Confinement by Ion Bernstein Waves (IBWs) Interacting with Ions in JET (Joint European Torus)

Improved Plasma Confinement by Ion Bernstein Waves (IBWs) Interacting with Ions in JET (Joint European Torus) Improved Plasma Confinement by Ion Bernstein Waves (IBWs) Interacting with Ions in JET (Joint European Torus) PD/P-01 C. Castaldo 1), R. Cesario 1), Y, Andrew 2), A. Cardinali 1), V. Kiptly 2), M. Mantsinen

More information

Nonlinear Diffusion in Magnetized Discharges. Francis F. Chen. Electrical Engineering Department

Nonlinear Diffusion in Magnetized Discharges. Francis F. Chen. Electrical Engineering Department Nonlinear Diffusion in Magnetized Discharges Francis F. Chen Electrical Engineering Department PPG-1579 January, 1998 Revised April, 1998 Nonlinear Diffusion in Magnetized Discharges Francis F. Chen Electrical

More information

PIC-MCC/Fluid Hybrid Model for Low Pressure Capacitively Coupled O 2 Plasma

PIC-MCC/Fluid Hybrid Model for Low Pressure Capacitively Coupled O 2 Plasma PIC-MCC/Fluid Hybrid Model for Low Pressure Capacitively Coupled O 2 Plasma Kallol Bera a, Shahid Rauf a and Ken Collins a a Applied Materials, Inc. 974 E. Arques Ave., M/S 81517, Sunnyvale, CA 9485, USA

More information

Chapter 7. Plasma Basics

Chapter 7. Plasma Basics Chapter 7 Plasma Basics 2006/4/12 1 Objectives List at least three IC processes using plasma Name three important collisions in plasma Describe mean free path Explain how plasma enhance etch and CVD processes

More information

Hall Thruster Electron Mobility Investigation using Full 3D Monte Carlo Trajectory Simulations

Hall Thruster Electron Mobility Investigation using Full 3D Monte Carlo Trajectory Simulations Hall Thruster Electron Mobility Investigation using Full 3D Monte Carlo Trajectory Simulations IEPC-2007-291 Presented at the 30 th International Electric Propulsion Conference, Florence, Italy Darren

More information

Two Dimensional Hybrid Model of a Miniaturized Cylindrical Hall Thruster

Two Dimensional Hybrid Model of a Miniaturized Cylindrical Hall Thruster Two Dimensional Hybrid Model of a Miniaturized Cylindrical Hall Thruster IEPC-2007-157 Presented at the 30 th International Electric Propulsion Conference, Florence, Italy L. Garrigues *, G. J. M. Hagelaar,

More information

An advanced simulation code for Hall effect thrusters

An advanced simulation code for Hall effect thrusters An advanced simulation code for Hall effect thrusters P. Fajardo, M. Merino, E. Ahedo pablo.fajardo@uc3m.es EPIC Workshop October 2017, Madrid Contents Plasmas and Space propulsion Team (EP2-UC3M) CHEOPS

More information

Comparison of the B field dependency of plasma parameters of a weakly magnetized inductive and Helicon hydrogen discharge

Comparison of the B field dependency of plasma parameters of a weakly magnetized inductive and Helicon hydrogen discharge Comparison of the B field dependency of plasma parameters of a weakly magnetized inductive and Helicon hydrogen discharge S Briefi 1, P Gutmann 1, D Rauner 1,2 and U Fantz 1,2 1 AG Experimentelle Plasmaphysik,

More information

The Q Machine. 60 cm 198 cm Oven. Plasma. 6 cm 30 cm. 50 cm. Axial. Probe. PUMP End Plate Magnet Coil. Filament Cathode. Radial. Hot Plate.

The Q Machine. 60 cm 198 cm Oven. Plasma. 6 cm 30 cm. 50 cm. Axial. Probe. PUMP End Plate Magnet Coil. Filament Cathode. Radial. Hot Plate. 1 The Q Machine 60 cm 198 cm Oven 50 cm Axial Probe Plasma 6 cm 30 cm PUMP End Plate Magnet Coil Radial Probe Hot Plate Filament Cathode 2 THE Q MACHINE 1. GENERAL CHARACTERISTICS OF A Q MACHINE A Q machine

More information

Plasma Modeling with COMSOL Multiphysics

Plasma Modeling with COMSOL Multiphysics Plasma Modeling with COMSOL Multiphysics Copyright 2014 COMSOL. Any of the images, text, and equations here may be copied and modified for your own internal use. All trademarks are the property of their

More information

Plasma Propulsion with electronegative gases

Plasma Propulsion with electronegative gases Plasma Propulsion with electronegative gases IEPC-2009-001 Presented at the 31st International Electric Propulsion Conference, University of Michigan Ann Arbor, Michigan USA Ane Aanesland *, Lara Popelier,

More information

Introduction Introduction

Introduction Introduction 1 Introduction This book is an introduction to the theory of charged particle acceleration. It has two primary roles: 1.A unified, programmed summary of the principles underlying all charged particle accelerators.

More information

MODERN PHYSICS OF PLASMAS (19 lectures)

MODERN PHYSICS OF PLASMAS (19 lectures) UNIT OF STUDY OUTLINE (PHYS 3021, 3921, 3024, 3924, 3025, 3925) MODERN PHYSICS OF PLASMAS (19 lectures) Course coordinator and principal lecturer: Dr Kostya (Ken) Ostrikov Lecturer (normal student stream,

More information

Modeling and Simulation of Plasma Based Applications in the Microwave and RF Frequency Range

Modeling and Simulation of Plasma Based Applications in the Microwave and RF Frequency Range Modeling and Simulation of Plasma Based Applications in the Microwave and RF Frequency Range Dr.-Ing. Frank H. Scharf CST of America What is a plasma? What is a plasma? Often referred to as The fourth

More information

1) Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia

1) Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia SI0100095 Nuclear Energy in Central Europe '98 Terme Catez, September 7 to 10, 1998 PLASMA RESPONSE TO A POSITIVE VOLTAGE STEP APPLIED TO AN ANODE IMMERSED IN A WEAKLY MAGNETIZED DISCHARGE PLASMA COLUMN

More information

An Experimental Study to Show the Effects of Secondary Electron Emission on Plasma Properties in Hall Thrusters

An Experimental Study to Show the Effects of Secondary Electron Emission on Plasma Properties in Hall Thrusters An Experimental Study to Show the Effects of Secondary Electron Emission on Plasma Properties in Hall Thrusters Kapil U. Sawlani and John E. Foster Plasma Science and Technology Laboratory Nuclear Engineering

More information

The Role of Secondary Electrons in Low Pressure RF Glow Discharge

The Role of Secondary Electrons in Low Pressure RF Glow Discharge WDS'05 Proceedings of Contributed Papers, Part II, 306 312, 2005. ISBN 80-86732-59-2 MATFYZPRESS The Role of Secondary Electrons in Low Pressure RF Glow Discharge O. Brzobohatý and D. Trunec Department

More information

11. Discharges in Magnetic Fields

11. Discharges in Magnetic Fields Contrib. Plasma Phys. 26 (1986) 1, 13-17 Sudden Jumps, Hysteresis, and Negative Resistance in an Argon Plasma Discharge 11. Discharges in Magnetic Fields R. A. BOSCR and R. L. MERLINO Department of Physics

More information

Particle Simulation of Plasma Energy Deposition on Hollow Cathode Insert

Particle Simulation of Plasma Energy Deposition on Hollow Cathode Insert Particle Simulation of Plasma Energy Deposition on Hollow Cathode Insert IEPC-17-33 Presented at the 35th International Electric Propulsion Conference Georgia Institute of Technology Atlanta, Georgia USA

More information

Plasma heating with neutral beam injection

Plasma heating with neutral beam injection University in Ljubljana Faculty of mathematics and physics Department of physics Plasma heating with neutral beam injection SEMINAR Author: Jure Maglica Mentor: a/prof. dr. Milan Čerček Ljubljana, May

More information

Toroidal confinement of non-neutral plasma. Martin Droba

Toroidal confinement of non-neutral plasma. Martin Droba Toroidal confinement of non-neutral plasma Martin Droba Contents Experiments with toroidal non-neutral plasma Magnetic surfaces CNT and IAP-high current ring Conclusion 2. Experiments with toroidal non-neutral

More information

MCQs of Plasma Physics. by Prof. V.K. Tripathi, IIT Delhi, New Delhi. Lecture 1

MCQs of Plasma Physics. by Prof. V.K. Tripathi, IIT Delhi, New Delhi. Lecture 1 MCQs of Plasma Physics by Prof. V.K. Tripathi, IIT Delhi, New Delhi. Lecture 1 Problem 1: Consider a singly ionized sphere of electron density n o, radius R and electron temperature T. Due to thermal motions

More information

Kinetic modelling of the jet extraction mechanism in spherical IEC devices

Kinetic modelling of the jet extraction mechanism in spherical IEC devices Kinetic modelling of the jet extraction mechanism in spherical IEC devices Type of activity: Standard study 1 Background & Study Motivation 1.1 Introduction Inertial Electrostatic Confinement (IEC) devices

More information

DESIGN OF A 10 NM ELECTRON COLLECTOR FOR A TRACK-

DESIGN OF A 10 NM ELECTRON COLLECTOR FOR A TRACK- DESIGN OF A 10 NM ELECTRON COLLECTOR FOR A TRACK- NANODOSIMETRIC COUNTER L. De Nardo 1, A. Alkaa 2, C. Khamphan 2, P. Colautti 3, V. Conte 3 1 University of Padova, Physics Department, via Marzolo 8, I-35131

More information

ª 10 KeV. In 2XIIB and the tandem mirrors built to date, in which the plug radius R p. ª r Li

ª 10 KeV. In 2XIIB and the tandem mirrors built to date, in which the plug radius R p. ª r Li Axisymmetric Tandem Mirrors: Stabilization and Confinement Studies R. F. Post, T. K. Fowler*, R. Bulmer, J. Byers, D. Hua, L. Tung Lawrence Livermore National Laboratory *Consultant, Presenter This talk

More information

Electron Temperature Modification in Gas Discharge Plasma

Electron Temperature Modification in Gas Discharge Plasma Electron Temperature Modification in Gas Discharge Plasma Valery Godyak University of Michigan and RF Plasma Consulting egodyak@comcast.net Workshop: Control of Distribution Functions in Low Temperature

More information

PFC/JA NEUTRAL BEAM PENETRATION CONSIDERATIONS FOR CIT

PFC/JA NEUTRAL BEAM PENETRATION CONSIDERATIONS FOR CIT PFC/JA-88-12 NEUTRAL BEAM PENETRATION CONSIDERATIONS FOR CIT J. Wei, L. Bromberg, R. C. Myer, and D. R. Cohn Plasma Fusion Center Massachusetts Institute of Technology Cambridge, Massachusetts 2139 To

More information

Penning Traps. Contents. Plasma Physics Penning Traps AJW August 16, Introduction. Clasical picture. Radiation Damping.

Penning Traps. Contents. Plasma Physics Penning Traps AJW August 16, Introduction. Clasical picture. Radiation Damping. Penning Traps Contents Introduction Clasical picture Radiation Damping Number density B and E fields used to increase time that an electron remains within a discharge: Penning, 936. Can now trap a particle

More information

Chapter IX: Nuclear fusion

Chapter IX: Nuclear fusion Chapter IX: Nuclear fusion 1 Summary 1. General remarks 2. Basic processes 3. Characteristics of fusion 4. Solar fusion 5. Controlled fusion 2 General remarks (1) Maximum of binding energy per nucleon

More information

Self-consistent Simulation of the Coupling Between Plasma and Neutral Gas in µn-rit

Self-consistent Simulation of the Coupling Between Plasma and Neutral Gas in µn-rit Self-consistent Simulation of the Coupling Between Plasma and Neutral Gas in µn-rit IEPC-2011-323 Presented at the 32 nd International Electric Propulsion Conference, Wiesbaden, Germany R. Henrich, D.

More information

STABILIZATION OF m=2/n=1 TEARING MODES BY ELECTRON CYCLOTRON CURRENT DRIVE IN THE DIII D TOKAMAK

STABILIZATION OF m=2/n=1 TEARING MODES BY ELECTRON CYCLOTRON CURRENT DRIVE IN THE DIII D TOKAMAK GA A24738 STABILIZATION OF m=2/n=1 TEARING MODES BY ELECTRON CYCLOTRON CURRENT DRIVE IN THE DIII D TOKAMAK by T.C. LUCE, C.C. PETTY, D.A. HUMPHREYS, R.J. LA HAYE, and R. PRATER JULY 24 DISCLAIMER This

More information

Measurement of EEDF and Distribution of Primary Electron in a Bucket Ion Source

Measurement of EEDF and Distribution of Primary Electron in a Bucket Ion Source Fourth IAEA Technical Meeting on "Negative Ion Based NBIs" May 9-11 2005, Padova - Italy Measurement of EEDF and Distribution of Primary Electron in a Bucket Ion Source S. Miyamoto, F. Kanayama, T. Minami,

More information

PIC Simulation of SPT Hall Thrusters: High Power Operation and Wall Effects. Kay Ueda Sullivan

PIC Simulation of SPT Hall Thrusters: High Power Operation and Wall Effects. Kay Ueda Sullivan PIC Simulation of SPT Hall Thrusters: High Power Operation and Wall Effects by Kay Ueda Sullivan Submitted to the Department of Aeronautical and Astronautical Engineering in partial fulfillment of the

More information

Progress in characterization of the H-mode pedestal

Progress in characterization of the H-mode pedestal Journal of Physics: Conference Series Progress in characterization of the H-mode pedestal To cite this article: A W Leonard 2008 J. Phys.: Conf. Ser. 123 012001 View the article online for updates and

More information

Effects of Neutral Density on Electron Temperature and Mobility in a Crossed-field Trap

Effects of Neutral Density on Electron Temperature and Mobility in a Crossed-field Trap Effects of Neutral Density on Electron Temperature and Mobility in a Crossed-field Trap Emily C. Fossum * and Lyon B. King, Michigan Tech University, Houghton, MI, 49931 An electron trapping apparatus

More information

Production of Over-dense Plasmas by Launching. 2.45GHz Electron Cyclotron Waves in a Helical Device

Production of Over-dense Plasmas by Launching. 2.45GHz Electron Cyclotron Waves in a Helical Device Production of Over-dense Plasmas by Launching 2.45GHz Electron Cyclotron Waves in a Helical Device R. Ikeda a, M. Takeuchi a, T. Ito a, K. Toi b, C. Suzuki b, G. Matsunaga c, S. Okamura b, and CHS Group

More information

MODELING AND SIMULATION OF LOW TEMPERATURE PLASMA DISCHARGES

MODELING AND SIMULATION OF LOW TEMPERATURE PLASMA DISCHARGES MODELING AND SIMULATION OF LOW TEMPERATURE PLASMA DISCHARGES Michael A. Lieberman University of California, Berkeley lieber@eecs.berkeley.edu DOE Center on Annual Meeting May 2015 Download this talk: http://www.eecs.berkeley.edu/~lieber

More information

Control of chaos in Hamiltonian systems

Control of chaos in Hamiltonian systems Control of chaos in Hamiltonian systems G. Ciraolo, C. Chandre, R. Lima, M. Vittot Centre de Physique Théorique CNRS, Marseille M. Pettini Osservatorio Astrofisico di Arcetri, Università di Firenze Ph.

More information

What place for mathematicians in plasma physics

What place for mathematicians in plasma physics What place for mathematicians in plasma physics Eric Sonnendrücker IRMA Université Louis Pasteur, Strasbourg projet CALVI INRIA Nancy Grand Est 15-19 September 2008 Eric Sonnendrücker (U. Strasbourg) Math

More information

Hong Young Chang Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea

Hong Young Chang Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea Hong Young Chang Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea Index 1. Introduction 2. Some plasma sources 3. Related issues 4. Summary -2 Why is

More information

Analysis and modelling of MHD instabilities in DIII-D plasmas for the ITER mission

Analysis and modelling of MHD instabilities in DIII-D plasmas for the ITER mission Analysis and modelling of MHD instabilities in DIII-D plasmas for the ITER mission by F. Turco 1 with J.M. Hanson 1, A.D. Turnbull 2, G.A. Navratil 1, C. Paz-Soldan 2, F. Carpanese 3, C.C. Petty 2, T.C.

More information

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory

Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title High current density beamlets from RF Argon source for heavy ion fusion applications Permalink https://escholarship.org/uc/item/6zh6c50m

More information

Recent Development of LHD Experiment. O.Motojima for the LHD team National Institute for Fusion Science

Recent Development of LHD Experiment. O.Motojima for the LHD team National Institute for Fusion Science Recent Development of LHD Experiment O.Motojima for the LHD team National Institute for Fusion Science 4521 1 Primary goal of LHD project 1. Transport studies in sufficiently high n E T regime relevant

More information

Space Plasma Physics Thomas Wiegelmann, 2012

Space Plasma Physics Thomas Wiegelmann, 2012 Space Plasma Physics Thomas Wiegelmann, 2012 1. Basic Plasma Physics concepts 2. Overview about solar system plasmas Plasma Models 3. Single particle motion, Test particle model 4. Statistic description

More information

Langmuir Probes as a Diagnostic to Study Plasma Parameter Dependancies, and Ion Acoustic Wave Propogation

Langmuir Probes as a Diagnostic to Study Plasma Parameter Dependancies, and Ion Acoustic Wave Propogation Langmuir Probes as a Diagnostic to Study Plasma Parameter Dependancies, and Ion Acoustic Wave Propogation Kent Lee, Dean Henze, Patrick Smith, and Janet Chao University of San Diego (Dated: May 1, 2013)

More information

arxiv:physics/ v1 [physics.plasm-ph] 5 Nov 2004

arxiv:physics/ v1 [physics.plasm-ph] 5 Nov 2004 Ion Resonance Instability in the ELTRAP electron plasma G. Bettega, 1 F. Cavaliere, 2 M. Cavenago, 3 A. Illiberi, 1 R. Pozzoli, 1 and M. Romé 1 1 INFM Milano Università, INFN Sezione di Milano, Dipartimento

More information

Studying the Formation of the Pre-Sheath in an Oblique Magnetic Field using a Fluid Model and PIC Simulation

Studying the Formation of the Pre-Sheath in an Oblique Magnetic Field using a Fluid Model and PIC Simulation J. Plasma Fusion Res. SERIES, Vol. 8 (2009) Studying the Formation of the Pre-Sheath in an Oblique Magnetic Field using a Fluid Model and PIC Simulation Jernej KOVAI 1, Tomaž Gyergyek 2,1, Milan EREK 1,3

More information

Plasma Energy Conversion in the Expanding Magnetic Nozzle

Plasma Energy Conversion in the Expanding Magnetic Nozzle Plasma Energy Conversion in the Expanding Magnetic Nozzle IEPC-2015-355/ISTS-2015-b-355 Presented at Joint Conference of 30th International Symposium on Space Technology and Science 34th International

More information

Preliminary Simulation of Beam Extraction for the 28 GHz ECR Ion Source

Preliminary Simulation of Beam Extraction for the 28 GHz ECR Ion Source Preliminary Simulation of Beam Extraction for the 28 GHz ECR Ion Source Bum-Sik Park*, Yonghwan Kim and Seokjin Choi RISP, Institute for Basic Science, Daejeon 305-811, Korea The 28 GHz ECR(Electron Cyclotron

More information

Magnetic Deflection of Ionized Target Ions

Magnetic Deflection of Ionized Target Ions Magnetic Deflection of Ionized Target Ions D. V. Rose, A. E. Robson, J. D. Sethian, D. R. Welch, and R. E. Clark March 3, 005 HAPL Meeting, NRL Solid wall, magnetic deflection 1. Cusp magnetic field imposed

More information

Effect of Noble Gas. Plasma Processing Laboratory University of Houston. Acknowledgements: DoE Plasma Science Center and NSF

Effect of Noble Gas. Plasma Processing Laboratory University of Houston. Acknowledgements: DoE Plasma Science Center and NSF Ion Energy Distributions in Pulsed Plasmas with Synchronous DC Bias: Effect of Noble Gas W. Zhu, H. Shin, V. M. Donnelly and D. J. Economou Plasma Processing Laboratory University of Houston Acknowledgements:

More information

Plasma-Wall Interaction Controlled by Secondary Electron Emission

Plasma-Wall Interaction Controlled by Secondary Electron Emission Plasma-Wall Interaction Controlled by Secondary Electron Emission IEPC-0-/ISTS-0-b- Presented at Joint Conference of 0th International Symposium on Space Technology and Science, th International Electric

More information

Comparison of SPT and HEMP thruster concepts from kinetic simulations

Comparison of SPT and HEMP thruster concepts from kinetic simulations Comparison of SPT and HEMP thruster concepts from kinetic simulations IEPC-2009-159 Presented at the 31st International Electric Propulsion Conference, University of Michigan Ann Arbor, Michigan USA K.

More information

Model analysis of a double stage Hall effect thruster with double-peaked magnetic field and intermediate electrode

Model analysis of a double stage Hall effect thruster with double-peaked magnetic field and intermediate electrode Model analysis of a double stage Hall effect thruster with double-peaked magnetic field and intermediate electrode IEPC-2007-121 Presented at the 30 th International Electric Propulsion Conference, Florence,

More information

Characterization of Oscillations in Closed Drift Thrusters

Characterization of Oscillations in Closed Drift Thrusters Characterization of Oscillations in Closed Drift Thrusters Edgar Y. Choueiri Electric Propulsion and Plasma Dynamics Laboratory Princeton University, Princeton, NJ 08544, USA Abstract The nature of oscillations

More information

ATHENA / AD-1. First production and detection of cold antihydrogen atoms. ATHENA Collaboration. Rolf Landua CERN

ATHENA / AD-1. First production and detection of cold antihydrogen atoms. ATHENA Collaboration. Rolf Landua CERN ATHENA / AD-1 First production and detection of cold antihydrogen atoms ATHENA Collaboration Rolf Landua CERN 1 LONG TERM PHYSICS GOALS Antihydrogen = Hydrogen? CPT Gravity But... 2 FIRST GOAL PRODUCTION

More information

1D simulations of the Helicon Double Layer

1D simulations of the Helicon Double Layer 1D simulations of the Helicon Double Layer IEPC-2007-106 Presented at the 30 th International Electric Propulsion Conference, Florence, Italy Marco Manente CISAS University of Padua, Padova Italy Johan

More information

INTRODUCTION TO THE HYBRID PLASMA EQUIPMENT MODEL

INTRODUCTION TO THE HYBRID PLASMA EQUIPMENT MODEL INTRODUCTION TO THE HYBRID PLASMA EQUIPMENT MODEL Prof. Mark J. Kushner Department of Electrical and Computer Engineering 1406 W. Green St. Urbana, IL 61801 217-144-5137 mjk@uiuc.edu http://uigelz.ece.uiuc.edu

More information

Tokamak Divertor System Concept and the Design for ITER. Chris Stoafer April 14, 2011

Tokamak Divertor System Concept and the Design for ITER. Chris Stoafer April 14, 2011 Tokamak Divertor System Concept and the Design for ITER Chris Stoafer April 14, 2011 Presentation Overview Divertor concept and purpose Divertor physics General design considerations Overview of ITER divertor

More information

Mass Analyzers. Principles of the three most common types magnetic sector, quadrupole and time of flight - will be discussed herein.

Mass Analyzers. Principles of the three most common types magnetic sector, quadrupole and time of flight - will be discussed herein. Mass Analyzers After the production of ions in ion sources, the next critical step in mass spectrometry is to separate these gas phase ions according to their mass-to-charge ratio (m/z). Ions are extracted

More information

Anode double layer in magnetized radio frequency inductively coupled hydrogen plasma

Anode double layer in magnetized radio frequency inductively coupled hydrogen plasma JOURNAL OF APPLIED PHYSICS VOLUME 94, NUMBER 3 1 AUGUST 2003 Anode double layer in magnetized radio frequency inductively coupled hydrogen plasma Deli Tang and Paul K. Chu a) Department of Physics and

More information

Chemistry 311: Topic 3 - Mass Spectrometry

Chemistry 311: Topic 3 - Mass Spectrometry Mass Spectroscopy: A technique used to measure the mass-to-charge ratio of molecules and atoms. Often characteristic ions produced by an induced unimolecular dissociation of a molecule are measured. These

More information

Studies of the ECR plasma in the visible light range

Studies of the ECR plasma in the visible light range Studies of the ECR plasma in the visible light range S. Biri, R. Rácz, J. Pálinkás* Institute of Nuclear Research (ATOMKI), Debrecen, Hungary *University of Debrecen, Dept. Exp. Physics, Hungary 1 S. Biri,

More information

Etching Issues - Anisotropy. Dry Etching. Dry Etching Overview. Etching Issues - Selectivity

Etching Issues - Anisotropy. Dry Etching. Dry Etching Overview. Etching Issues - Selectivity Etching Issues - Anisotropy Dry Etching Dr. Bruce K. Gale Fundamentals of Micromachining BIOEN 6421 EL EN 5221 and 6221 ME EN 5960 and 6960 Isotropic etchants etch at the same rate in every direction mask

More information

SCALING OF HOLLOW CATHODE MAGNETRONS FOR METAL DEPOSITION a)

SCALING OF HOLLOW CATHODE MAGNETRONS FOR METAL DEPOSITION a) SCALING OF HOLLOW CATHODE MAGNETRONS FOR METAL DEPOSITION a) Gabriel Font b) Novellus Systems, Inc. San Jose, CA, 95134 USA and Mark J. Kushner Dept. of Electrical and Computer Engineering Urbana, IL,

More information

The Computational Simulation of the Positive Ion Propagation to Uneven Substrates

The Computational Simulation of the Positive Ion Propagation to Uneven Substrates WDS' Proceedings of Contributed Papers, Part II, 5 9,. ISBN 978-8-778-85-9 MATFYZPRESS The Computational Simulation of the Positive Ion Propagation to Uneven Substrates V. Hrubý and R. Hrach Charles University,

More information

Tutorial: simulating a rod pinch diode for pulsed radiography with Trak and GamBet

Tutorial: simulating a rod pinch diode for pulsed radiography with Trak and GamBet Tutorial: simulating a rod pinch diode for pulsed radiography with Trak and GamBet Stanley Humphries, Copyright 2012 Field Precision PO Box 13595, Albuquerque, NM 87192 U.S.A. Telephone: +1-505-220-3975

More information

Chapter 23 Electric Potential. Copyright 2009 Pearson Education, Inc.

Chapter 23 Electric Potential. Copyright 2009 Pearson Education, Inc. Chapter 23 Electric Potential Units of Chapter 23 Electric Potential Energy and Potential Difference Relation between Electric Potential and Electric Field Electric Potential Due to Point Charges Potential

More information

Simulations of the plasma dynamics in high-current ion diodes

Simulations of the plasma dynamics in high-current ion diodes Nuclear Instruments and Methods in Physics Research A 415 (1998) 473 477 Simulations of the plasma dynamics in high-current ion diodes O. Boine-Frankenheim *, T.D. Pointon, T.A. Mehlhorn Gesellschaft fu(

More information

ICPMS Doherty Lecture 1

ICPMS Doherty Lecture 1 ICPMS Doherty Lecture 1 Mass Spectrometry This material provides some background on how to measure isotope abundances by means of mass spectrometry. Mass spectrometers create and separate ionized atoms

More information

Erosion/redeposition analysis of CMOD Molybdenum divertor and NSTX Liquid Lithium Divertor

Erosion/redeposition analysis of CMOD Molybdenum divertor and NSTX Liquid Lithium Divertor Erosion/redeposition analysis of CMOD Molybdenum divertor and NSTX Liquid Lithium Divertor J.N. Brooks, J.P. Allain Purdue University PFC Meeting MIT, July 8-10, 2009 CMOD Mo tile divertor erosion/redeposition

More information

References and Figures from: - Basdevant, Fundamentals in Nuclear Physics

References and Figures from: - Basdevant, Fundamentals in Nuclear Physics Lecture 22 Fusion Experimental Nuclear Physics PHYS 741 heeger@wisc.edu References and Figures from: - Basdevant, Fundamentals in Nuclear Physics 1 Reading for Next Week Phys. Rev. D 57, 3873-3889 (1998)

More information

Observing a single hydrogen-like ion in a Penning trap at T = 4K

Observing a single hydrogen-like ion in a Penning trap at T = 4K Hyperfine Interactions 115 (1998) 185 192 185 Observing a single hydrogen-like ion in a Penning trap at T = 4K M. Diederich a,h.häffner a, N. Hermanspahn a,m.immel a,h.j.kluge b,r.ley a, R. Mann b,w.quint

More information

Hall thrusters are spacecraft propulsion devices that utilize an applied magnetic field to create thrust.

Hall thrusters are spacecraft propulsion devices that utilize an applied magnetic field to create thrust. Development of the Starfish Plasma Simulation Code and Update on Multiscale Modeling of Hall Thrusters Lubos Brieda Particle In Cell Consulting LLC, Falls Church, VA 22046 Michael Keidar The George Washington

More information

Magnetic Confinement Fusion and Tokamaks Chijin Xiao Department of Physics and Engineering Physics University of Saskatchewan

Magnetic Confinement Fusion and Tokamaks Chijin Xiao Department of Physics and Engineering Physics University of Saskatchewan The Sun Magnetic Confinement Fusion and Tokamaks Chijin Xiao Department of Physics and Engineering Physics University of Saskatchewan 2017 CNS Conference Niagara Falls, June 4-7, 2017 Tokamak Outline Fusion

More information

Self consistent kinetic simulations of SPT and HEMP thrusters including the near-field plume region

Self consistent kinetic simulations of SPT and HEMP thrusters including the near-field plume region Self consistent kinetic simulations of SPT and HEMP thrusters including the near-field plume region K. Matyash 1, R. Schneider, A. Mutzke, O. Kalentev Max-Planck-Institut für Plasmaphysik, EURATOM Association,

More information

Application of Rarefied Flow & Plasma Simulation Software

Application of Rarefied Flow & Plasma Simulation Software 2016/5/18 Application of Rarefied Flow & Plasma Simulation Software Yokohama City in Japan Profile of Wave Front Co., Ltd. Name : Wave Front Co., Ltd. Incorporation : March 1990 Head Office : Yokohama

More information

The Auroral Zone: Potential Structures in Field and Density Gradients

The Auroral Zone: Potential Structures in Field and Density Gradients The Auroral Zone: Potential Structures in Field and Density Gradients David Schriver May 8, 2007 Global Kinetic Modeling: week 10 Foreshock (week 3) Auroral zone (week 7) (week 8) Radiation Belt (week

More information