Plasma flow measurements in the Prototype-Material Plasma Exposure eXperiment (Proto-MPEX) and comparison with B2.5-Eirene modeling

Kafle, Nischal; Owen, Larry W.; Caneses Marin, Juan; Biewer, Theodore M.; Caughman, John B. O.; Donovan, David C.; Goulding, Richard H.; Rapp, Juergen; Showers, Melissa A.

doi:10.1063/1.5019266

Title: Plasma flow measurements in the Prototype-Material Plasma Exposure eXperiment (Proto-MPEX) and comparison with B2.5-Eirene modeling

Journal Article · Fri May 25 00:00:00 EDT 2018 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5019266· OSTI ID:1607311

^[1];

^[2];

^[2]; Donovan, David C. ^[1];

^[2];

^[2]; Showers, Melissa A. ^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The Prototype Material Plasma Exposure eXperiment (Proto-MPEX) at Oak Ridge National Laboratory is a linear plasma device that combines a helicon plasma source with additional microwave and radio frequency heating to deliver high plasma heat and particle fluxes to a target. Double Langmuir probes and Thomson scattering are being used to measure local electron temperature and density at various radial and axial locations. A recently constructed Mach-double probe provides the added capability of simultaneously measuring electron temperatures (T_e), electron densities (n_e), and Mach numbers (M). With this diagnostic, it is possible to infer the plasma flow, particle flux, and heat flux at different locations along the plasma column in Proto-MPEX. Preliminary results show Mach numbers of 0.5 (towards the dump plate) and 1.0 (towards the target plate) downstream from the helicon source, and a stagnation point (no flow) near the source for the case where the peak magnetic field was 1.3 T. Measurements of particle flow and n_e and T_e profiles are discussed. Finally, the extensive coverage provided by these diagnostics permits data-constrained B2.5-Eirene modeling of the entire plasma column, and comparison with results of modeling in the high-density helicon plasmas will be presented.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1607311

Alternate ID(s):: OSTI ID: 1439133

Journal Information:: Physics of Plasmas, Vol. 25, Issue 5; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 11 works

Citation information provided by
Web of Science

References (29)

A Floating Double Probe Method for Measurements in Gas Discharges Johnson, E. O.; Malter, L. Physical Review, Vol. 80, Issue 1 https://doi.org/10.1103/PhysRev.80.58	journal	October 1950
Kinetic theory of ion collection by probing objects in flowing strongly magnetized plasmas Chung, K-S.; Hutchinson, I. H. Physical Review A, Vol. 38, Issue 9 https://doi.org/10.1103/PhysRevA.38.4721	journal	November 1988
Developing the science and technology for the Material Plasma Exposure eXperiment Rapp, J.; Biewer, T. M.; Bigelow, T. S. Nuclear Fusion, Vol. 57, Issue 11 https://doi.org/10.1088/1741-4326/aa7b1c	journal	July 2017
Mach probes Chung, Kyu-Sun Plasma Sources Science and Technology, Vol. 21, Issue 6 https://doi.org/10.1088/0963-0252/21/6/063001	journal	November 2012
The Challenges of Plasma Material Interactions in Nuclear Fusion Devices and Potential Solutions Rapp, J. Fusion Science and Technology https://doi.org/10.1080/15361055.2017.1333859	journal	June 2017
B2.5-Eunomia simulations of Pilot-PSI plasmas Wieggers, R. C.; Coster, D. P.; Groen, P. W. C. Journal of Nuclear Materials, Vol. 438 https://doi.org/10.1016/j.jnucmat.2013.01.135	journal	July 2013
Spectral survey of helium lines in a linear plasma device for use in HELIOS imaging Ray, H. B.; Biewer, T. M.; Fehling, D. T. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4959796	journal	August 2016
Two-dimensional imaging of a helicon discharge Blackwell, David D.; Chen, Francis F. Plasma Sources Science and Technology, Vol. 6, Issue 4 https://doi.org/10.1088/0963-0252/6/4/015	journal	November 1997
Analysis of uncompensated Langmuir probe characteristics in radio-frequency discharges revisited Oksuz, L.; Soberón, F.; Ellingboe, A. R. Journal of Applied Physics, Vol. 99, Issue 1 https://doi.org/10.1063/1.2158496	journal	January 2006
Helicon antenna radiation patterns in a high-density hydrogen linear plasma device Caneses, J. F.; Blackwell, B. D.; Piotrowicz, P. Physics of Plasmas, Vol. 24, Issue 11 https://doi.org/10.1063/1.5000848	journal	November 2017
The EIRENE and B2-EIRENE Codes Reiter, D.; Baelmans, M.; Börner, P. Fusion Science and Technology, Vol. 47, Issue 2 https://doi.org/10.13182/FST47-172	journal	February 2005
Transport modeling of convection dominated helicon discharges in Proto-MPEX with the B2.5-Eirene code Owen, L. W.; Rapp, J.; Canik, J. Physics of Plasmas, Vol. 24, Issue 11 https://doi.org/10.1063/1.5002534	journal	November 2017
Experimental tests of Langmuir probe theory for strong magnetic fields Pitts, R. A.; Stangeby, P. C. Plasma Physics and Controlled Fusion, Vol. 32, Issue 13 https://doi.org/10.1088/0741-3335/32/13/004	journal	December 1990
Code development for ITER edge modelling – SOLPS5.1 Bonnin, X.; Kukushkin, A. S.; Coster, D. P. Journal of Nuclear Materials, Vol. 390-391 https://doi.org/10.1016/j.jnucmat.2009.01.105	journal	June 2009
B2.5-Eirene modeling of radial transport in the MAGPIE linear plasma device Owen, L. W.; Caneses, J. F.; Canik, J. Plasma Sources Science and Technology, Vol. 26, Issue 5 https://doi.org/10.1088/1361-6595/aa6389	journal	March 2017
Transport simulations of linear plasma generators with the B2.5-Eirene and EMC3-Eirene codes Rapp, J.; Owen, L. W.; Bonnin, X. Journal of Nuclear Materials, Vol. 463 https://doi.org/10.1016/j.jnucmat.2014.12.058	journal	August 2015
Progress in the Development of a High Power Helicon Plasma Source for the Materials Plasma Exposure Experiment Goulding, R. H.; Caughman, J. B. O.; Rapp, J. Fusion Science and Technology, Vol. 72, Issue 4 https://doi.org/10.1080/15361055.2017.1352429	journal	August 2017
B2-EIRENE simulation of plasma and neutrals in MAGNUM-PSI Baeva, M.; Goedheer, W. J.; Lopes Cardozo, N. J. Journal of Nuclear Materials, Vol. 363-365 https://doi.org/10.1016/j.jnucmat.2007.01.029	journal	June 2007
Heat flux estimates of power balance on Proto-MPEX with IR imaging Showers, M.; Biewer, T. M.; Caughman, J. B. O. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4959953	journal	August 2016
Initial implementation of a Thomson scattering diagnostic for Proto-MPEX Biewer, T. M.; Shaw, G. Review of Scientific Instruments, Vol. 85, Issue 11 https://doi.org/10.1063/1.4886959	journal	November 2014
Overestimation of Mach number due to probe shadow Gosselin, J. J.; Thakur, S. C.; Sears, S. H. Physics of Plasmas, Vol. 23, Issue 7 https://doi.org/10.1063/1.4954820	journal	July 2016
Plasma Modelling for the PSI Linear Plasma Device Kastelewicz, H.; Fussmann, G. Contributions to Plasma Physics, Vol. 44, Issue 4 https://doi.org/10.1002/ctpp.200410053	journal	July 2004
Anomalous Diffusion in a Linear Plasma Generator Waldmann, O.; Meyer, H.; Fussmann, G. Contributions to Plasma Physics, Vol. 47, Issue 10 https://doi.org/10.1002/ctpp.200710079	journal	December 2007
Plasma detachment in linear devices Ohno, N. Plasma Physics and Controlled Fusion, Vol. 59, Issue 3 https://doi.org/10.1088/1361-6587/aa5394	journal	February 2017
The Development of Plasma-Material Interaction Facilities for the Future of Fusion Technology Rapp, J.; Biewer, T. M.; Canik, J. Fusion Science and Technology, Vol. 64, Issue 2 https://doi.org/10.13182/FST12-565	journal	August 2013
First results from the Thomson scattering diagnostic on proto-MPEX Biewer, T. M.; Meitner, S.; Rapp, J. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4959163	journal	August 2016
RF compensation of double Langmuir probes: modelling and experiment Caneses, Juan F.; Blackwell, Boyd Plasma Sources Science and Technology, Vol. 24, Issue 3 https://doi.org/10.1088/0963-0252/24/3/035024	journal	May 2015
Plasma source development for fusion-relevant material testing Caughman, John B. O.; Goulding, Richard H.; Biewer, Theodore M. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 35, Issue 3 https://doi.org/10.1116/1.4982664	journal	May 2017
Plasma Edge Physics with B2-Eirene Schneider, R.; Bonnin, X.; Borrass, K. Contributions to Plasma Physics, Vol. 46, Issue 1-2 https://doi.org/10.1002/ctpp.200610001	journal	February 2006

Cited By (2)

Radial transport modeling of high density deuterium plasmas in proto-MPEX with the B2.5-Eirene code Rapp, J.; Owen, L. W.; Canik, J. Physics of Plasmas, Vol. 26, Issue 4 https://doi.org/10.1063/1.5049808	journal	April 2019
Dual-pass upgrade to the Thomson scattering diagnostic on the Prototype-Material Plasma Exposure eXperiment (Proto-MPEX) Kafle, N.; Biewer, T. M.; Donovan, D. C. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5039370	journal	October 2018

Similar Records

Radial transport modeling of high density deuterium plasmas in proto-MPEX with the B2.5-Eirene code

Journal Article · Wed Apr 24 00:00:00 EDT 2019 · Physics of Plasmas · OSTI ID:1607311

Rapp, Juergen; Owen, Larry W.; Canik, John; +5 more

Transport modeling of convection dominated helicon discharges in Proto-MPEX with the B2.5-Eirene code

Journal Article · Tue Nov 14 00:00:00 EST 2017 · Physics of Plasmas · OSTI ID:1607311

Owen, Larry W.; Rapp, Juergen; Canik, John; +1 more

Transport simulations of linear plasma generators with the B2.5-Eirene and EMC3-Eirene codes

Journal Article · Sat Dec 20 00:00:00 EST 2014 · Journal of Nuclear Materials · OSTI ID:1607311

Rapp, Juergen; Owen, Larry W.; Bonnin, X.; +4 more

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Title: Plasma flow measurements in the Prototype-Material Plasma Exposure eXperiment (Proto-MPEX) and comparison with B2.5-Eirene modeling

Citation Formats

References (29)

Cited By (2)

Similar Records

Related Subjects