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Title: Kinetic simulation of a low-pressure helium discharge with comparison to experimental measurements

Abstract

Modern computational validation efforts rely on comparison of known experimental quantities such as current, voltage, particle densities, and other plasma properties with the same values determined through simulation. A discrete photon approach for radiation transport was recently incorporated into a particle-in-cell/direct simulation Monte Carlo code. As a result, spatially and temporally resolved synthetic spectra may be generated even for non-equilibrium plasmas. The generation of this synthetic spectra lends itself to potentially new validation opportunities. In this work, initial comparisons of synthetic spectra are made with experimentally gathered optical emission spectroscopy. A custom test apparatus was constructed that contains a 0.5 cm gap distance parallel plane discharge in ultra high purity helium gas (99.9999%) at a pressure of 75 Torr. Plasma generation is initiated with the application of a fast rise-time, 100 ns full-width half maximum, 2.0 kV voltage pulse. Transient electrical diagnostics are captured along with time-resolved emission spectra. A one-dimensional simulation is run under the same conditions and compared against the experiment to determine if sufficient physics are included to model the discharge. To sync the current measurements from experiment and simulation, significant effort was undertaken to understand the kinetic scheme required to reproduce the observed features. Additionally, themore » role of the helium molecule excimer emission and atomic helium resonance emission on photocurrent from the cathode are studied to understand which effect dominates photo-feedback processes. Results indicate that during discharge development, atomic helium resonance emission dominates the photo-flux at the cathode even though it is strongly self-absorbed. A comparison between the experiment and simulation demonstrates that the simulation reproduces observed features in the experimental discharge current waveform. Here, the synthesized spectra from the kinetic method produces more favorable agreement with the experimental data than a simple local thermodynamic equilibrium calculation and is a first step towards using spectra generated from a kinetic method in validation procedures. The results of this study produced a detailed compilation of important helium plasma chemistry reactions for simulating transient helium plasma discharges.« less

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1515212
Report Number(s):
SAND-2019-4674J
Journal ID: ISSN 1361-6595; 675009
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Plasma Sources Science and Technology
Additional Journal Information:
Journal Volume: 28; Journal Issue: 5; Journal ID: ISSN 1361-6595
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; plasma; discharge; photons

Citation Formats

Fierro, Andrew S., Barnat, Ed V., Moore, Chris Hudson, Hopkins, Matthew M., and Clem, Paul G. Kinetic simulation of a low-pressure helium discharge with comparison to experimental measurements. United States: N. p., 2019. Web. doi:10.1088/1361-6595/ab18e1.
Fierro, Andrew S., Barnat, Ed V., Moore, Chris Hudson, Hopkins, Matthew M., & Clem, Paul G. Kinetic simulation of a low-pressure helium discharge with comparison to experimental measurements. United States. doi:10.1088/1361-6595/ab18e1.
Fierro, Andrew S., Barnat, Ed V., Moore, Chris Hudson, Hopkins, Matthew M., and Clem, Paul G. Tue . "Kinetic simulation of a low-pressure helium discharge with comparison to experimental measurements". United States. doi:10.1088/1361-6595/ab18e1.
@article{osti_1515212,
title = {Kinetic simulation of a low-pressure helium discharge with comparison to experimental measurements},
author = {Fierro, Andrew S. and Barnat, Ed V. and Moore, Chris Hudson and Hopkins, Matthew M. and Clem, Paul G.},
abstractNote = {Modern computational validation efforts rely on comparison of known experimental quantities such as current, voltage, particle densities, and other plasma properties with the same values determined through simulation. A discrete photon approach for radiation transport was recently incorporated into a particle-in-cell/direct simulation Monte Carlo code. As a result, spatially and temporally resolved synthetic spectra may be generated even for non-equilibrium plasmas. The generation of this synthetic spectra lends itself to potentially new validation opportunities. In this work, initial comparisons of synthetic spectra are made with experimentally gathered optical emission spectroscopy. A custom test apparatus was constructed that contains a 0.5 cm gap distance parallel plane discharge in ultra high purity helium gas (99.9999%) at a pressure of 75 Torr. Plasma generation is initiated with the application of a fast rise-time, 100 ns full-width half maximum, 2.0 kV voltage pulse. Transient electrical diagnostics are captured along with time-resolved emission spectra. A one-dimensional simulation is run under the same conditions and compared against the experiment to determine if sufficient physics are included to model the discharge. To sync the current measurements from experiment and simulation, significant effort was undertaken to understand the kinetic scheme required to reproduce the observed features. Additionally, the role of the helium molecule excimer emission and atomic helium resonance emission on photocurrent from the cathode are studied to understand which effect dominates photo-feedback processes. Results indicate that during discharge development, atomic helium resonance emission dominates the photo-flux at the cathode even though it is strongly self-absorbed. A comparison between the experiment and simulation demonstrates that the simulation reproduces observed features in the experimental discharge current waveform. Here, the synthesized spectra from the kinetic method produces more favorable agreement with the experimental data than a simple local thermodynamic equilibrium calculation and is a first step towards using spectra generated from a kinetic method in validation procedures. The results of this study produced a detailed compilation of important helium plasma chemistry reactions for simulating transient helium plasma discharges.},
doi = {10.1088/1361-6595/ab18e1},
journal = {Plasma Sources Science and Technology},
number = 5,
volume = 28,
place = {United States},
year = {2019},
month = {5}
}

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Works referenced in this record:

Discrete photon implementation for plasma simulations
journal, January 2016

  • Fierro, Andrew; Stephens, Jacob; Beeson, Sterling
  • Physics of Plasmas, Vol. 23, Issue 1
  • DOI: 10.1063/1.4939475

Ignition and afterglow dynamics of a high pressure nanosecond pulsed helium micro-discharge: I. Electron, Rydberg molecules and He (2 3 S) densities
journal, September 2016

  • Schregel, Christian-Georg; Carbone, Emile A. D.; Luggenhölscher, Dirk
  • Plasma Sources Science and Technology, Vol. 25, Issue 5
  • DOI: 10.1088/0963-0252/25/5/054003

Ignition and afterglow dynamics of a high pressure nanosecond pulsed helium micro-discharge: II. Rydberg molecules kinetics
journal, September 2016

  • Carbone, Emile A. D.; Schregel, Christian-Georg; Czarnetzki, Uwe
  • Plasma Sources Science and Technology, Vol. 25, Issue 5
  • DOI: 10.1088/0963-0252/25/5/054004

Simulation benchmarks for low-pressure plasmas: Capacitive discharges
journal, January 2013

  • Turner, M. M.; Derzsi, A.; Donkó, Z.
  • Physics of Plasmas, Vol. 20, Issue 1
  • DOI: 10.1063/1.4775084

Radiofrequency discharge benchmark model comparison
journal, February 1995


Comparison of six simulation codes for positive streamers in air
journal, September 2018

  • Bagheri, B.; Teunissen, J.; Ebert, U.
  • Plasma Sources Science and Technology, Vol. 27, Issue 9
  • DOI: 10.1088/1361-6595/aad768

Why Perform Code-to-Code Comparisons: A Vacuum Arc Discharge Simulation Case Study
journal, May 2012

  • Timko, H.; Crozier, P. S.; Hopkins, M. M.
  • Contributions to Plasma Physics, Vol. 52, Issue 4
  • DOI: 10.1002/ctpp.201100051

Radiation transport in kinetic simulations and the influence of photoemission on electron current in self-sustaining discharges
journal, January 2017

  • Fierro, Andrew; Moore, Chris; Scheiner, Brett
  • Journal of Physics D: Applied Physics, Vol. 50, Issue 6
  • DOI: 10.1088/1361-6463/aa506c

Optical emission spectroscopy study in the VUV–VIS regimes of a developing low-temperature plasma in nitrogen gas
journal, November 2012


Gas temperature determination from rotational lines in non-equilibrium plasmas: a review
journal, April 2014


Time-resolved optical emission spectroscopy of nanosecond pulsed discharges in atmospheric-pressure N 2 and N 2 /H 2 O mixtures
journal, August 2012

  • van der Horst, R. M.; Verreycken, T.; van Veldhuizen, E. M.
  • Journal of Physics D: Applied Physics, Vol. 45, Issue 34
  • DOI: 10.1088/0022-3727/45/34/345201

Three-dimensional kinetic modeling of streamer propagation in a nitrogen/helium gas mixture
journal, October 2018

  • Fierro, Andrew; Moore, Chris; Yee, Ben
  • Plasma Sources Science and Technology, Vol. 27, Issue 10
  • DOI: 10.1088/1361-6595/aae055

Measurements of fireball onset
journal, April 2018

  • Scheiner, Brett; Barnat, Edward V.; Baalrud, Scott D.
  • Physics of Plasmas, Vol. 25, Issue 4
  • DOI: 10.1063/1.5026869

Electron-impact excitation and ionization cross sections for ground state and excited helium atoms
journal, July 2008

  • Ralchenko, Yu.; Janev, R. K.; Kato, T.
  • Atomic Data and Nuclear Data Tables, Vol. 94, Issue 4
  • DOI: 10.1016/j.adt.2007.11.003

Experimental Determinations of the First Townsend Ionization Coefficient in Helium
journal, February 1964


NIST Atomic Spectra Database, NIST Standard Reference Database 78
dataset, January 1999

  • Kramida, Alexander; Ralchenko, Yuri
  • National Institute of Standards and Technology
  • DOI: 10.18434/T4W30F

Optical diagnostics with radiation trapping effect in low density and low temperature helium plasma
journal, June 2016

  • Lee, Wonwook; Park, Kyungdeuk; Kwon, Duck-Hee
  • Physics of Plasmas, Vol. 23, Issue 6
  • DOI: 10.1063/1.4954047

Helium line intensity ratio in microwave-generated plasmas
journal, December 2004

  • Podder, N. K.; Johnson, J. A.; Raynor, C. T.
  • Physics of Plasmas, Vol. 11, Issue 12
  • DOI: 10.1063/1.1812535

Efficient models for photoionization produced by non-thermal gas discharges in air based on radiative transfer and the Helmholtz equations
journal, August 2007


The role of photoionization in positive streamer dynamics
journal, May 2000


Numerical and experimental study of the dynamics of a μ s helium plasma gun discharge with various amounts of N 2 admixture
journal, March 2016

  • Bourdon, Anne; Darny, Thibault; Pechereau, François
  • Plasma Sources Science and Technology, Vol. 25, Issue 3
  • DOI: 10.1088/0963-0252/25/3/035002

Modelling of streamer propagation in atmospheric-pressure helium plasma jets
journal, September 2010


Simulation of two counter-propagating helium discharges at atmospheric pressure
journal, March 2014


Cold-cathode discharges and breakdown in argon: surface and gas phase production of secondary electrons
journal, January 1999


Collisional–radiative modelling of a helium microwave plasma in a resonant cavity
journal, November 2007


Self-consistent model of a direct-current glow discharge: Treatment of fast electrons
journal, January 1990


A collisional-radiative model for microwave discharges in helium at low and intermediate pressures
journal, December 1992


Quenching and excitation transfer in the n = 3 helium sublevels in a low-pressure glow discharge
journal, January 1980


Quenching and excitation-transfer processes in the n = 4 helium sublevels in a low-pressure glow discharge
journal, February 1981


Reaction kinetics of the He(2P) and the He 2 *(a,v) states in high-density helium
journal, May 1988


Modelling of the homogeneous barrier discharge in helium at atmospheric pressure
journal, December 2002

  • Golubovskii, Yu B.; Maiorov, V. A.; Behnke, J.
  • Journal of Physics D: Applied Physics, Vol. 36, Issue 1
  • DOI: 10.1088/0022-3727/36/1/306