Secondary electron emission yield from high aspect ratio carbon velvet surfaces
Abstract
The plasma electrons bombarding a plasma-facing wall surface can induce secondary electron emission (SEE) from the wall. A strong SEE can enhance the power losses by reducing the wall sheath potential and thereby increasing the electron flux from the plasma to the wall. The use of the materials with surface roughness and the engineered materials with surface architecture is known to reduce the effective SEE by trapping the secondary electrons. In this work, we demonstrate a 65% reduction of SEE yield using a velvet material consisting of high aspect ratio carbon fibers. The measurements of SEE yield for different velvet samples using the electron beam in vacuum demonstrate the dependence of the SEE yield on the fiber length and the packing density, which is strongly affected by the alignment of long velvet fibers with respect to the electron beam impinging on the velvet sample. Furthermore, the results of SEE measurements support the previous observations of the reduced SEE measured in Hall thrusters.
- Authors:
-
[2];
[2]
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Soochow Univ., Suzhou (China)
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1411389
- Alternate Identifier(s):
- OSTI ID: 1406388
- Grant/Contract Number:
- AC02-09CH11466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Applied Physics
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 17; Journal ID: ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Jin, Chenggang, Ottaviano, Angelica, and Raitses, Yevgeny. Secondary electron emission yield from high aspect ratio carbon velvet surfaces. United States: N. p., 2017.
Web. doi:10.1063/1.4993979.
Jin, Chenggang, Ottaviano, Angelica, & Raitses, Yevgeny. Secondary electron emission yield from high aspect ratio carbon velvet surfaces. United States. https://doi.org/10.1063/1.4993979
Jin, Chenggang, Ottaviano, Angelica, and Raitses, Yevgeny. Wed .
"Secondary electron emission yield from high aspect ratio carbon velvet surfaces". United States. https://doi.org/10.1063/1.4993979. https://www.osti.gov/servlets/purl/1411389.
@article{osti_1411389,
title = {Secondary electron emission yield from high aspect ratio carbon velvet surfaces},
author = {Jin, Chenggang and Ottaviano, Angelica and Raitses, Yevgeny},
abstractNote = {The plasma electrons bombarding a plasma-facing wall surface can induce secondary electron emission (SEE) from the wall. A strong SEE can enhance the power losses by reducing the wall sheath potential and thereby increasing the electron flux from the plasma to the wall. The use of the materials with surface roughness and the engineered materials with surface architecture is known to reduce the effective SEE by trapping the secondary electrons. In this work, we demonstrate a 65% reduction of SEE yield using a velvet material consisting of high aspect ratio carbon fibers. The measurements of SEE yield for different velvet samples using the electron beam in vacuum demonstrate the dependence of the SEE yield on the fiber length and the packing density, which is strongly affected by the alignment of long velvet fibers with respect to the electron beam impinging on the velvet sample. Furthermore, the results of SEE measurements support the previous observations of the reduced SEE measured in Hall thrusters.},
doi = {10.1063/1.4993979},
journal = {Journal of Applied Physics},
number = 17,
volume = 122,
place = {United States},
year = {2017},
month = {11}
}
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Works referenced in this record:
Dependence of Secondary Electron Emission upon Angle of Incidence of 1.3-Mev Primaries
journal, May 1956
- Shatas, R. A.; Marshall, J. F.; Pomerantz, M. A.
- Physical Review, Vol. 102, Issue 3
Probabilistic model for the simulation of secondary electron emission
journal, December 2002
- Furman, M.; Pivi, M.
- Physical Review Special Topics - Accelerators and Beams, Vol. 5, Issue 12
Secondary electron yields of carbon‐coated and polished stainless steel
journal, April 1982
- Ruzic, D.; Moore, R.; Manos, D.
- Journal of Vacuum Science and Technology, Vol. 20, Issue 4
Effect of Secondary Electron Emission on Electron Cross-Field Current in $E \times B$ Discharges
journal, April 2011
- Raitses, Y.; Kaganovich, I. D.; Khrabrov, A.
- IEEE Transactions on Plasma Science, Vol. 39, Issue 4
Development and experimental characterization of a wall-less Hall thruster
journal, December 2014
- Mazouffre, S.; Tsikata, S.; Vaudolon, J.
- Journal of Applied Physics, Vol. 116, Issue 24
Systematic investigation of the barrier discharge operation in helium, nitrogen, and mixtures: discharge development, formation and decay of surface charges
journal, August 2014
- Tschiersch, R.; Bogaczyk, M.; Wagner, H-E
- Journal of Physics D: Applied Physics, Vol. 47, Issue 36
Analysis of secondary electron emission for conducting materials using 4-grid LEED/AES optics
journal, March 2015
- Patino, M. I.; Raitses, Y.; Koel, B. E.
- Journal of Physics D: Applied Physics, Vol. 48, Issue 19
Operation of a segmented Hall thruster with low-sputtering carbon-velvet electrodes
journal, February 2006
- Raitses, Y.; Staack, D.; Dunaevsky, A.
- Journal of Applied Physics, Vol. 99, Issue 3
Secondary electron emission from dielectric materials of a Hall thruster with segmented electrodes
journal, June 2003
- Dunaevsky, A.; Raitses, Y.; Fisch, N. J.
- Physics of Plasmas, Vol. 10, Issue 6
Modeling of reduced effective secondary electron emission yield from a velvet surface
journal, December 2016
- Swanson, Charles; Kaganovich, Igor D.
- Journal of Applied Physics, Vol. 120, Issue 21
Heat flow through a Langmuir sheath in the presence of electron emission
journal, January 1967
- Hobbs, G. D.; Wesson, J. A.
- Plasma Physics, Vol. 9, Issue 1
Plasma processing of low-k dielectrics
journal, January 2013
- Baklanov, Mikhail R.; de Marneffe, Jean-Francois; Shamiryan, Denis
- Journal of Applied Physics, Vol. 113, Issue 4
CuO nanowires for inhibiting secondary electron emission
journal, March 2013
- Aguilera, L.; Montero, I.; Dávila, M. E.
- Journal of Physics D: Applied Physics, Vol. 46, Issue 16
Evidence for strong secondary electron emission in the tokamak scrape-off layer
journal, June 2012
- Gunn, J. P.
- Plasma Physics and Controlled Fusion, Vol. 54, Issue 8
Physics of the edge plasma and first wall in fusion devices: synergistic effects
journal, March 2015
- Krasheninnikov, S. I.; Pigarov, A. Yu; Lee, Wonjae
- Plasma Physics and Controlled Fusion, Vol. 57, Issue 4
Breakdown of a Space Charge Limited Regime of a Sheath in a Weakly Collisional Plasma Bounded by Walls with Secondary Electron Emission
journal, October 2009
- Sydorenko, D.; Kaganovich, I.; Raitses, Y.
- Physical Review Letters, Vol. 103, Issue 14
Absence of Debye Sheaths due to Secondary Electron Emission
journal, June 2012
- Campanell, M. D.; Khrabrov, A. V.; Kaganovich, I. D.
- Physical Review Letters, Vol. 108, Issue 25
Secondary electron emission from plasma-generated nanostructured tungsten fuzz
journal, November 2016
- Patino, M.; Raitses, Y.; Wirz, R.
- Applied Physics Letters, Vol. 109, Issue 20
Secondary electron emission under electron bombardment from graphene nanoplatelets
journal, February 2014
- Montero, Isabel; Aguilera, Lydya; Dávila, María E.
- Applied Surface Science, Vol. 291
Works referencing / citing this record:
Dynamic secondary electron emission in rough composite materials
journal, September 2019
- Olano, Leandro; Dávila, Maria E.; Dennison, John R.
- Scientific Reports, Vol. 9, Issue 1
Angular, temperature, and impurity effects on secondary electron emission from Ni(110)
journal, September 2018
- Patino, M. I.; Wirz, R. E.; Raitses, Y.
- Journal of Applied Physics, Vol. 124, Issue 9
Effect of rectangular grooves and checkerboard patterns on the electron emission yield
journal, September 2018
- Pierron, J.; Inguimbert, C.; Belhaj, M.
- Journal of Applied Physics, Vol. 124, Issue 9
Electron emission from carbon velvet due to incident xenon ions
journal, July 2018
- Patino, M. I.; Wirz, R. E.
- Applied Physics Letters, Vol. 113, Issue 4
A rapid technique for the determination of secondary electron emission yield from complex surfaces
journal, December 2019
- Ottaviano, Angelica; Banerjee, Sankha; Raitses, Yevgeny
- Journal of Applied Physics, Vol. 126, Issue 22
Effect of rectangular grooves and checkerboard patterns on the electron emission yield
text, January 2019
- Pierron, J.; Inguimbert, Christophe; Belhaj, Mohamed
- arXiv